Answer:
[tex]x=-\frac{4}{5}[/tex]
Step-by-step explanation:
[tex]6=\frac{3}{4}(10x+16)\\\mathrm{or,\ }6\times 4=3(10x+16)\\\\\mathrm{or,\ }24=30x+48\\\\\mathrm{or,\ }-24=30x\\\\\mathrm{\therefore}\ x=-\frac{4}{5}[/tex]
p^q is logically equivalent to
The logically equivalent statement to p → q is:
~q → ~p
How to find the logically equivalent statement?The conditional statement:
p → q
Assuming p and q are propositions, the conditional statement may be expressed as:
"If p holds true, then q follows suit. "
'
Whenever p is true, q is true as well. This implies that if q is false, then p must also be false.
We can rephrase this statement cleverly using the negative propositions, which include the opposite or contradictory statements.
~p and ~q
These mean:
Not p and Not q respectively.
Then the statement:
"If q is not true, then p is not true"
Is written as:
~q → ~p
So this is the logically equivalent statement.
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The Complete Question
Given a conditional statement p → q, which statement is logically equivalent?
~p → ~q
~q → ~p
q → p
p → ~q
PROPIEDADES DE LOS LOGARITMOS
3log(x+2)+4log(x-4)- 2log(x+5)-3log(x-9)
The original expression simplifies to log((x+2)^3 * (x-4)^4) + log((x+5)^-2 / (x-9)^3) This represents a sum of Logarithms with different bases and arguments.
The given expression is 3log(x+2) + 4log(x-4) - 2log(x+5) - 3log(x-9). Let's simplify this expression using the properties of logarithms:
1. Product Rule: log(a) + log(b) = log(ab)
We can apply this rule to the first two terms:
3log(x+2) + 4log(x-4) = log((x+2)^3) + log((x-4)^4)
= log((x+2)^3 * (x-4)^4)
2. Quotient Rule: log(a) - log(b) = log(a/b)
We can apply this rule to the third and fourth terms:
-2log(x+5) - 3log(x-9) = log((x+5)^-2) + log((x-9)^-3)
= log((x+5)^-2 / (x-9)^3)
Therefore, the original expression simplifies to:
log((x+2)^3 * (x-4)^4) + log((x+5)^-2 / (x-9)^3)
This represents a sum of logarithms with different bases and arguments.
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Write a linear regression and find the projected number of new cases for 2011.
The linear regression equation is y ≈ -30.64x + 883.47. The projected number of new cases for 2011 is approximately 524.
To find the linear regression equation that represents the given set of data, we need to find the equation in the form y = mx + b, where m is the slope and b is the y-intercept.
Using the given data points, we can calculate the slope (m) and the y-intercept (b) using the least squares method.
First, we calculate the mean of x and y:
mean(x) = (0 + 1 + 2 + 3 + 4) / 5 = 2
mean(y) = (885 + 865 + 823 + 793 + 745) / 5 = 822.2
Next, we calculate the differences from the means:
Δx = (x - mean(x))
Δy = (y - mean(y))
Using the differences, we can calculate the slope:
m = Σ(Δx * Δy) / Σ(Δx^2)
= ((0 - 2) * (885 - 822.2) + (1 - 2) * (865 - 822.2) + (2 - 2) * (823 - 822.2) + (3 - 2) * (793 - 822.2) + (4 - 2) * (745 - 822.2)) / ((0 - 2)^2 + (1 - 2)^2 + (2 - 2)^2 + (3 - 2)^2 + (4 - 2)^2)
≈ -30.64
Then, we calculate the y-intercept:
b = mean(y) - m * mean(x)
= 822.2 - (-30.64) * 2
≈ 883.47
Therefore, the linear regression equation that represents the data is y ≈ -30.64x + 883.47.
To find the projected number of new cases for 2011, we substitute x = 12 (since 2011 is 12 years since 1999) into the equation:
y ≈ -30.64 * 12 + 883.47
≈ 524.15
Rounding to the nearest whole number, the projected number of new cases for 2011 is approximately 524.
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Una pastelería es famosa por dos de sus especialidades de pasteles: el Especial y el Supremo. El Especial requiere para su elaboración medio kilo de azúcar y 8 huevos, teniendo un precio de venta de $200. El Supremo necesita un kilo de azúcar y 8 huevos, teniendo un precio de venta de $270. En el almacén les quedaban 10 kilos de azúcar y 120 huevos.
Given statement solution is :-The ingredients available in the warehouse, a maximum of 15 "Special" cakes and 10 "Supreme" cakes can be made.
To determine how many cakes they can make of each specialty, we need to review the amount of ingredients available in the warehouse and then calculate how many cakes can be made with that amount.
Amount of ingredients in the warehouse:
Sugar: 10 kilos
Eggs: 120
For the "Special" cake:
It requires half a kilo of sugar per cake.
It requires 8 eggs per cake.
Sale price: $200 per cake.
To calculate how many "Special" cakes can be made, we divide the amount of sugar and eggs available in the store by the ingredients required per cake:
"Special" cakes that can be made:
Available sugar / Sugar required per cake = 10 kilos / 0.5 kilos = 20 cakes
Eggs Available / Eggs Required per Cake = 120 Eggs / 8 Eggs = 15 Cakes
Therefore, with the ingredients available in the store, a maximum of 15 "Special" cakes can be made.
For the "Supreme" cake:
It requires a kilo of sugar per cake.
It requires 8 eggs per cake.
Sale price: $270 per cake.
To calculate how many "Supreme" cakes can be made, we again divide the amount of sugar and eggs available in the store by the ingredients required per cake:
"Supreme" cakes that can be made:
Available sugar / Sugar required per cake = 10 kilos / 1 kilo = 10 cakes
Eggs Available / Eggs Required per Cake = 120 Eggs / 8 Eggs = 15 Cakes
Thus, with the ingredients available in the warehouse, a maximum of 10 "Supreme" cakes can be made.
In short, with the ingredients available in the warehouse, a maximum of 15 "Special" cakes and 10 "Supreme" cakes can be made.
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1. IF L = Q AND M= R, FIND THE VAKUE OF X
2. IF L=Q AND M = R. FIND THE VALUE OF X
1. The value of x is 9
2. The value of x is 8
How to determine the valuesTo determine the value of the variables, we need to know the properties of a triangle.
These properties includes;
A triangle is a polygonA triangle has three sidesA triangle has three anglesThe sum total of the interior angles of a triangle is 180 degreesNow, from the information given, we have that;
<L = <Q
<M = <R
The side facing <L is 9
The side facing <Q is x
x = 9
2. The side facing <L is 6
The side facing <Q is 12
Then, x = 8
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When x > 0 and y > 0, what expression is equivalent to √180x^9y^16 in simplest form?
Answer:
[tex]6x^4y^8\sqrt{5x}[/tex]
Step-by-step explanation:
[tex]\textsf{When $x > 0$ and $y > 0$, we want to find the expression that is equivalent to}[/tex] [tex]\sqrt{180x^9y^{16}}.[/tex]
[tex]\textsf{First, apply the radical rule:} \quad \sqrt{ab}=\sqrt{a}\sqrt{b}[/tex]
[tex]\sqrt{180}\sqrt{x^9}\sqrt{y^{16}}[/tex]
[tex]\textsf{Rewrite $x^9$ as $x^{8+1}$:}[/tex]
[tex]\sqrt{180}\sqrt{x^{(8+1)}}\sqrt{y^{16}}[/tex]
[tex]\textsf{Apply the exponent rule:} \quad a^{b+c}=a^b \cdot a^c[/tex]
[tex]\sqrt{180}\sqrt{x^{8}\cdot x^1}\sqrt{y^{16}}[/tex]
[tex]\sqrt{180}\sqrt{x^{8}}\sqrt{x}\sqrt{y^{16}}[/tex]
[tex]\textsf{Apply\:the\:radical\:rule:\:}\sqrt[n]{a^m}=a^{\frac{m}{n}},\:\quad a\geq 0[/tex]
[tex]\sqrt{180}\;x^{\frac{8}{2}}\sqrt{x}\;y^{\frac{16}{2}}[/tex]
[tex]\sqrt{180}\;x^4\sqrt{x}\;y^8[/tex]
[tex]\sqrt{180}\sqrt{x}\;x^4\;y^8[/tex]
[tex]\textsf{Rewrite $180$ as $(6^2 \cdot 5)$:}[/tex]
[tex]\sqrt{6^2 \cdot 5}\sqrt{x}\;x^4\;y^8[/tex]
[tex]\textsf{Apply the radical rule:} \quad \sqrt{ab}=\sqrt{a}\sqrt{b}[/tex]
[tex]\sqrt{6^2} \sqrt{5}\sqrt{x}\;x^4\;y^8[/tex]
[tex]\textsf{Apply the radical rule:} \quad \sqrt{a^2}=a, \quad a \geq 0[/tex]
[tex]6 \sqrt{5}\sqrt{x}\;x^4\;y^8[/tex]
[tex]\textsf{Apply the radical rule:} \quad \sqrt{a}\sqrt{b}=\sqrt{ab}[/tex]
[tex]6 \sqrt{5x}\;x^4\;y^8[/tex]
[tex]\textsf{Rearrange:}[/tex]
[tex]6x^4y^8\sqrt{5x}[/tex]
[tex]\textsf{Therefore, when $x > 0$ and $y > 0$, the expression that is equivalent to}[/tex]
[tex]\sqrt{180x^9y^{16}}\;\textsf{is}\;\;\boxed{6x^4y^8\sqrt{5x}}\:.[/tex]
Which graph represents the function f(x) = -|x| − 3?
A Reflection over the y-axis and a shift downwards by three units, which is consistent with the function f(x) = -|x| − 3.
The function f(x) = -|x| − 3 can be graphed by following these steps:
To begin, draw a regular x and y-axis and mark it off with an appropriate scale. Then, mark off the negative values on the y-axis and both negative and positive values on the x-axis. After that, we will begin graphing the function f(x) = -|x| − 3, which is a reflection of the absolute value of x over the y-axis and shifted three units down the y-axis. Since the function f(x) = -|x| − 3 is a reflection of the absolute value of x over the y-axis, the graph should be symmetrical. This means that each point to the left of the y-axis is a reflection of the point to the right of the y-axis. Then, we will plot the vertex (0, -3), which is three units down from the origin. Next, we can plot other points using a table of values. We can select values for x that are both negative and positive, such as -2, -1, 0, 1, and 2, and then evaluate them to find the corresponding y values. Then, plot these points on the graph. Finally, we connect the points with a smooth curve, which will form the graph of the function f(x) = -|x| − 3. The graph will be in the shape of a V that opens downwards.Therefore, the correct graph is an option (D). The graph of the option (D) shows a reflection over the y-axis and a shift downwards by three units, which is consistent with the function f(x) = -|x| − 3.
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Which equation represents a line that has a slope of -1/2 and goes through the point (8, 1)
Answer:
y = - [tex]\frac{1}{2}[/tex] x + 5
Step-by-step explanation:
the equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
given slope m = - [tex]\frac{1}{2}[/tex] , then
y = - [tex]\frac{1}{2}[/tex] x + c ← is the partial equation
to find c substitute (8, 1 ) into the partial equation
1 = - [tex]\frac{1}{2}[/tex] (8) + c = - 4 + c ( add 4 to both sides )
5 = c
y = - [tex]\frac{1}{2}[/tex] x + 5 ← equation of line
The equation is :
↬ y = -1/2x + 5Solution:
Let's write the equation in point slope first.
Point slopeThe formula is [tex]\bf{y-y_1=m(x-x_1)}[/tex].
Wherem = slope(x₁, y₁) is a point on the lineSubstitute all the data:
[tex]\begin{gathered}\bf{y-1=-\frac{1}{2}(x-8)}\\\bf{y-1=-\frac{1}{2} x+4}\\\bf{y=-\frac{1}{2}x+5}\end{gathered}[/tex]
Hence, the answer is y = -1/2x + 5The diameter of a planet is about 22,502 mi. The diameter of the planet's moon is about 22% of the diameter of the planet. What percent of the volume of the planet is the volume of its moon?
Answer:
about 1.1%
Step-by-step explanation:
Given a moon has a diameter of 22% of the diameter its planet, you want the volume of the moon as a percent of the planet's volume.
Scale factorThe ratio of moon diameter to planet diameter is given as 22%. The ratio of moon volume to planet volume will be the cube of this scale factor:
moon volume / planet volume = (0.22)³ ≈ 0.0106 = 1.06%
The volume of the moon is about 1.1% of the volume of the planet.
<95141404393>
Simplify using the order of operations. 2+6*8=
Answer:
The answer is 50.
Step-by-step explanation:
Use MDAS
Multiplication, Division, Addition and Subtraction
2 + 6 * 8 =
Multiply first then add
2 + 6*8 = ?
= 2 + 48
= 50
Write 8 x 105 in standard notation.
Hello!
8 x 10⁵
= 8 x 100000
= 800000
Victoria is paid a salary of $550 a week at her job. She worked 5 hr of overtime during the holidays, and her weekly paycheck came to $690. What is her overtime pay per hour?
Answer:
$28 per hour
Step-by-step explanation:
Let's first find out how much extra Victoria was paid during the week she worked overtime.
Without overtime, Victoria's weekly paycheck would be $550. However, she received $690 that week. The difference between the two amounts is the extra pay for overtime:
Extra pay = Total pay - Regular pay = $690 - $550 = $140
Now, we know that Victoria worked 5 hours of overtime. To find her overtime pay per hour, we can divide the total overtime pay by the number of overtime hours:
Overtime pay per hour = Total overtime pay / Overtime hours = $140 / 5 = $28
Victoria's overtime pay is $28 per hour.
Hope this helps!
Answer:
Victoria is paid $28 per hour of overtime.
Step-by-step explanation:
Get the difference of Victoria's paycheck with and without overtime.
Difference = $690 - $550
Difference = $140
The difference is the amount that she was paid for the overtime.
Since she worked for 5 hours then we can just divide the amount over the time.
Rate = $140/5hours
Rate = $28/hr
11. Which number does NOT round to 4.61?
a) 4.61372
c) 4.60728
b) 4.61478
d) 4.60182
Answer: D
D would round to 4.6, as the third significant figure is 0, we round down, not up unlike the rest of the options.
Caitlin has 9 3/8 feet of red yarn and
5 5/8 feet of purple yarn. How much more
red yarn does Caitlin have than purple
yarn?
Caitlin has 3 3/4 feet more of red yarn than purple yarn.
To find out how much more red yarn Caitlin has compared to purple yarn, we need to subtract the length of the purple yarn from the length of the red yarn.
Given:
Red yarn: 9 3/8 feet
Purple yarn: 5 5/8 feet
To subtract mixed numbers, we need to convert them to improper fractions.
9 3/8 = (8 * 9 + 3)/8 = 75/8
5 5/8 = (8 * 5 + 5)/8 = 45/8
Now, we can subtract the fractions:
75/8 - 45/8 = (75 - 45)/8 = 30/8
Simplifying the fraction, we get:
30/8 = 15/4 = 3 3/4
Therefore, Caitlin has 3 3/4 feet more of red yarn than purple yarn.
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If you have Muro 128 5% solution. How many mL will give you 0.1 g of sodium chloride?
You would need 2 mL of Muro 128 5% solution to obtain 0.1 g of sodium chloride.
To determine the volume of Muro 128 5% solution needed to obtain 0.1 g of sodium chloride, we need to consider the concentration of sodium chloride in the solution and perform some calculations.
Muro 128 5% solution refers to a solution containing 5 grams of sodium chloride per 100 mL of solution. This means that in 1 mL of the solution, there is 0.05 grams of sodium chloride (5 grams divided by 100 mL).
To find the volume of the solution needed to obtain 0.1 g of sodium chloride, we can use the following equation:
Volume (mL) = (Mass of sodium chloride (g)) / (Concentration of sodium chloride (g/mL))
In this case, the mass of sodium chloride is 0.1 g, and the concentration of sodium chloride is 0.05 g/mL.
Volume (mL) = 0.1 g / 0.05 g/mL = 2 mL
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What is the future value of $500 invested at 8 percent for five years under semi-annual compounding conditions?
Note: provide answer in full dollars/cents form, e.g., $123.45
To calculate the future value (FV) of an investment, we can use the formula:
FV = P(1 + r/n)^(nt)
Where:
FV = Future Value
P = Principal amount (initial investment)
r = Annual interest rate (as a decimal)
n = Number of compounding periods per year
t = Number of years
In this case, the principal amount is $500, the annual interest rate is 8% (or 0.08 as a decimal), and the compounding is done semi-annually (n = 2). The investment is held for 5 years (t = 5).
Using the formula, we can calculate the future value:
FV = $500 * (1 + 0.08/2)^(2*5)
FV = $500 * (1.04)^(10)
FV ≈ $734.66
Therefore, the future value of $500 invested at 8% for five years under semi-annual compounding conditions is approximately $734.66.
Kindly Heart and 5 Star this answer and especially don't forgot to BRAINLIEST, thanks!a question was asked by a teacher to a student. She gave the student a jumbled word and told him to make words out of it. The jumbled word is gzeysktqix. Now you know what to do. see ya!
The teacher's question, the student can provide a List of words including "sixty," "zesty," "skit," "site," "size," "exit," "yeti," "kits," "kite," and "ties."
Let unscramble the jumbled word "gzeysktqix" and find the possible words that can be formed.
Upon unscrambling, we can find several possible words:
1. Sixty
2. Zesty
3. Skit
4. Site
5. Size
6. Exit
7. Yeti
8. Kits
9. Kite
10. Ties
These are some of the words that can be formed from the jumbled letters "gzeysktqix." There may be additional words that can be created, depending on the specific rules or restrictions given by the teacher.
Unscrambling words can be a fun and challenging exercise that helps improve vocabulary, word recognition, and problem-solving skills. It allows students to enhance their language abilities and discover new words they might not have known before.
Remember, the key is to rearrange the given letters systematically and try different combinations until meaningful words are formed.
So, in response to the teacher's question, the student can provide a list of words including "sixty," "zesty," "skit," "site," "size," "exit," "yeti," "kits," "kite," and "ties."
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help help help help help help help please
Please help me with this I need it quickly
Answer:
Step-by-step explanation:
-3/3m is the answer
[tex]\frac{13}{3m}[/tex]
This is the same thing as subtracting two fractions.
First find the lowest common denominator.
You can multiply the first denominator by 3 to make it
[tex]\frac{24}{3m}[/tex] - [tex]\frac{11}{3m}[/tex]
Now subtract the fractions
21 - 11 = 13
Our answer = [tex]\frac{13}{3m}[/tex]
experimentos aleatorios con orden y repeticion
A randomized experiment with order, replacement, and no repetition is one in which the order of the outcomes matters, the same outcome can occur multiple times, and no outcome can occur more than once.
How to explain the information.For example, drawing a card from a deck and then flipping a coin would be a random experiment with order, replacement, and no repetition. The order of the results is important because the outcome of the coin toss will depend on the outcome of the card draw.
The same result can occur multiple times because the same card can be drawn twice, and no result can occur more than once because the coin can only land heads or tails once.
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what are the elements found in both a narrative and a story
The theme is the underlying message, lesson, or central idea conveyed by the narrative or story.
Both a narrative and a story share several common elements that contribute to their structure and presentation. These elements include characters, setting, plot, conflict, and theme.
Characters are essential components of both narratives and stories. They are the individuals or entities that drive the events and experiences within the narrative or story. The setting is the time and place in which the events occur and provide the context for the story.
The plot refers to the sequence of events that unfold and create a structure for the narrative or story. Conflict represents the central problem or challenge faced by the characters and is often a driving force behind the plot's progression.
These shared elements create a framework for both narratives and stories, enabling the development and communication of experiences, ideas, and emotions to the audience. They contribute to the engagement, coherence, and impact of the narrative or story, regardless of the medium or genre in which they are presented.
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2x² - 4y for x = -4 and y = 6.
Answer:
8
Step-by-step explanation:
2x² - 4y ( substitute x = - 4 and y = 6 into the expression )
= 2(- 4)² - 4(6)
= 2(16) - 24
= 32 - 24
= 8
you multiply each value in the data set below by 2, what the mean, median, mode, and range of the data set? 2893103 The mean is Type an integer or decimal rounded to the nearest hundredth as needed)
The mean, Median, mode, and range are all the same in this particular case because the data set contains only one value.
The mean, median, mode, and range of a data set, we need to multiply each value in the data set by 2 and then calculate the corresponding statistics.
Given the data set: 2893103
If we multiply each value by 2, the new data set becomes: 5786206
Mean:
The mean is calculated by summing up all the values in the data set and then dividing by the total number of values. In this case, the sum of the new data set is 5786206. Since there is only one value in the data set, the mean is equal to that value. Therefore, the mean is 5786206.
Median:
The median is the middle value when the data set is arranged in ascending order. In this case, there is only one value, so the median is equal to that value. Therefore, the median is 5786206.
Mode:
The mode is the value that appears most frequently in the data set. In this case, there is only one value, so there is no mode.
Range:
The range is the difference between the maximum and minimum values in the data set. In this case, the maximum value is 5786206 and the minimum value is also 5786206. Therefore, the range is 0.
In summary:
Mean: 5786206
Median: 5786206
Mode: No mode
Range: 0
the mean, median, mode, and range are all the same in this particular case because the data set contains only one value.
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Create similar right triangles by changing the scale factor of the right triangle.
When the scale factor is 1, what is the ratio of the side length of the side opposite ∠A and the length of the hypotenuse?
Change the scale factor to 3. What is the ratio of the side length of the side opposite ∠A to the length of the hypotenuse?
What is the ratio of the side length of the side opposite any 30° angle and the length of the
hypotenuse?
When the scale factor is 1, the triangle is a 30-60-90 triangle. The ratio of the side length of the side opposite ∠A and the length of the hypotenuse is 1:√3.
When the scale factor is 3, the triangle is still a 30-60-90 triangle. The ratio of the side length of the side opposite ∠A and the length of the hypotenuse is 3:√3.
The ratio of the side length of the side opposite any 30° angle and the length of the hypotenuse is always 1:√3. This is because the side opposite the 30° angle is always the shorter leg of the triangle, and the hypotenuse is always twice the length of the shorter leg.
30-60-90 triangle with a scale factor of 3
The side opposite ∠A is 3 units long, and the hypotenuse is √3 units long. The ratio of the side length of the side opposite ∠A and the length of the hypotenuse is 3:√3.
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After graduating from college, Trevor gets a job at a software company with a starting salary of 50,000 dollars and is given a 10% raise every year. After 10 years, what will his total earnings have been at the company? (Round to the nearest dollar)
Answer:
796871
Step-by-step explanation:
Based on the given conditions, formulate:
5000 x (1 - (1 + 10%) 10)
-------------------------------
1 - (1 + 10%)
Evaluate the equation/expression:
796871.23005
Find the closest integer to
798871.23005
= 796871
What is x in the equation?
Answer:
x = 15
Step-by-step explanation:
the segment inside the triangle is an angle bisector and divides the side opposite the bisected angle into segments that are proportional to the other two sides, that is
[tex]\frac{x}{21-x}[/tex] = [tex]\frac{25}{10}[/tex] ( cross- multiply )
10x = 25(21 - x)
10x = 525 - 25x ( add 25x to both sides )
35x = 525 ( divide both sides by 35 )
x = 15
Find all solutions of each equation on the interval 0≤ x <2pie
tan² x sec² x +2 sec²x - tan²x =2
The trigonometric equations has the following solutions: x = 0 + j · π or x = 0.352π + j · π or x = - 0.352π + j · π, where j is a non-negative whole number.
How to solve a trigonometric equation
In this problem we find the case of a trigonometric equation, whose solutions on the interval [0, 2π] must be found. This can be done by both algebra properties and trigonometric formulae. First, write the entire expression:
tan² x · sec² x + 2 · sec² x - tan² x = 2
Second, use trigonometric formulas to reduce the number of trigonometric functions:
tan² x · (tan² x + 1) + 2 · (tan² x + 1) - tan² x = 2
Third, expand the equation:
tan⁴ x + tan² x + 2 · tan² x + 2 - tan² x = 2
tan⁴ x + 2 · tan² x = 0
Fourth, factor the expression:
tan² x · (tan² x - 2) = 0
tan² x = 0 or tan² x = 2
tan x = 0 or tan x = ± √2
Fifth, determine the solutions to trigonometric equation:
x = 0 + j · π or x = 0.352π + j · π or x = - 0.352π + j · π, where j is a non-negative whole number.
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Please gimme the variables to define the sytem and 2 system of equations
Answer:
[tex]8.5x+4y=99.5,\ x+y=17[/tex]
Step-by-step explanation:
[tex]\mathrm{System\ of\ equations:}\\8.5x+4y=99.5\\x+y=17\\\mathrm{where,}\ x\ \mathrm{is\ the\ number\ of\ popcorns\ and\ }y\mathrm{\is\ the\ number\ of\ candies}[/tex]
2 questions.
Find the lenght and width
Find the admission price for an adult ticket and student ticket.
1) The length of the rectangle is 15 feet and its width is 9 feet.
2) The admission price for an adult ticket is $10 and a student ticket is $6.
How to solve the problems?1) We shall use the formula for the area of a rectangle to find the length and the width:
A = l * w
where:
A = Area.
l = length
w = width.
Given:
l = 6 feet more than the width.
A = 135 feet square meter
First, we write an equation for the area like this:
(w + 6) * w = 135
Expanding the equation:
w² + 6w - 135 = 0
Next, solve the quadratic equation by factoring:
(w - 9)(w + 15) = 0
So either w - 9 = 0 or w + 15 = 0. This means that either w = 9 or w = -15. Since the width cannot be negative, we have w = 9.
Finally, we shall find the length since we know the width. This can be done by using the fact that it is 6 feet more than the width:
l = w + 6 = 9 + 6 = 15
So, the length is 15 feet and the width is 9 feet.
2) We can find the admission price for an adult ticket and a student ticket by using Mathematical operators:
Let,
a = an adult ticket price
s = a student ticket price
From the given information, we get these equations:
5a + 11s = 116
3a + 4s = 54
Next, solve by substitution.
Solving for 'a' in the second equation:
a = (54 - 4s) / 3
Then, substitute the second expression for 'a' into the first equation:
5((54 - 4s) / 3) + 11s = 116
Multiply both sides by 3:
5(54 - 4s) + 33s = 348
Finally, expand and simplify:
270 - 20s + 33s = 348
13s = 78
s = 6
So, a student ticket costs $6.
Plug this value into either equation to get the adult ticket price:
3a + (4 * 6) = 54
3a + 24 = 54
3a = 30
a = 10
So, an adult ticket costs $10.
Therefore,
1) The length of a rectangle is 15 feet and the width is 9 feet
2) The admission price for an adult ticket is $10 and that of a student is $6
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25) Find the measure of the side MN.
A) 17.1
B) 18.1
C) 19.1
The measure of the side MN is 19.1.
What are trigonometric functions?In mathematics, the trigonometric functions (also called circular functions, angle functions or goniometric functions) are real functions which relate an angle of a right-angled triangle to ratios of two side lengths.
The different trigonometric identities are expressed as:
cosine, tangent, cotangent, cosecant, secant, and sineFrom the information given, we have that:
The opposite side of the triangle is MNThe adjacent side is 11ftUsing the tangent identity:
[tex]\text{tan} \ \theta = \dfrac{\text{opposite}}{\text{adjacent}}[/tex]
Substitute the values
[tex]\text{tan}(60) =\dfrac{\text{MN}}{11}[/tex]
Cross multiply the values, we have:
[tex]\text{MN} = \sf 1.73(11)[/tex]
[tex]\text{MN} = 19. 05 \thickapprox\bold{\underline{19.1 \ ft}}[/tex]
Hence, the measure of the side MN is 19.1.
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