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Related Questions
Question in picture answer correct
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The reason for the statements for the algebraic proof is as follows;
Multiplication property of equalityDivision property of equalityHow to solve equation with reasons?The equation given is as follows:
3x / 6 = 4 . This equation is given.
Therefore,
3x / 6 = 4
Using multiplication property of equality, we will multiply both sides of the equation by 6.
3x / 6 × 6 = 4 × 6
3x = 24
The multiplication property of equality states that when we multiply both sides of an equation by the same number, the two sides remain equal.
Hence,
3x = 24
Using division property of equality, we divide both sides by 3.
3x / 3 = 24 / 3
x = 8
The Division Property of equality says that dividing both sides of an equation by the same number does not affect the equation.
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Find c if a=2.93 mi,b=3.95 mi and c=40.3 degrees C=Round your answer to 3 decimal places
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Using the law of cosines, we have the following relation between the measures of this triangle:
[tex]c^2=a^2+b^2-2ab\cos C[/tex]Plugging the given values, we have:
[tex]c^2=(2.93)^2+(3.95)^2-2(2.93)(3.95)\cos40.3^o[/tex]Solving for c, we have our answer:
[tex]c\approx2.556[/tex]The measure of c is 2.556 miles.
Randall wants to mix 54 Ib of nuts worth $1 per lb with some nuts worth $5 per Ib to make a mixture worth $4 per lb. How many pounds of $5 nuts must he use?
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Let:
x = no. of lb of $5 nuts required.
resulting mixture = x + 54
Hence:
[tex]54\times\text{\$1}+\text{ \$5x}=(x+54)\times\text{\$4}[/tex]Solving for x:
[tex]\begin{gathered} 54+5x=4x+216 \\ 5x-4x=216-54 \\ x=162 \end{gathered}[/tex]ANSWER
Randall must use 162 lb of $5 nuts
Situation: A 40 gram sample of a substance that's used for drug research has a k-value of 0.1472. N = Noekt No = initial mass (at time t = 0) N = fhass at time t k = a positive constant that depends on the substance itself and on the units used to measure time t = time, in days
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t = time, in days
k = 0.1472
N = 40 gram
[tex]40=N_0e^{(0.1472)t}[/tex]Help me to answer the second question with a more detailed process, thank you.
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Hence the answer is
Quotient is
[tex]x^2+2x-4[/tex]remainder is 9
A booth at the State Fair recorded the number of items sold in the chart below. What is the ratio of lemonade and sodas sold to the number of candy bars sold?
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Answer:
7:6
Step-by-step explanation:
add the amount of lemonade and soda together, that is 42.
so you have 42:36.
you need to simplify it, so you divide 42 / 2 = 21
then you divide 36 / 2 = 18.
so now you have 21:18.
then you divide 21 / 3 = 7
then you divide 18 / 3 = 6.
so therefore, your answer is 7:6.
hope this helped:)
Tina has a pet sitting business. She charges a flat service fee of $20, plus $15 per day for each animal. If one of her customersspent less than $110 on one animal, which of the following inequalities could be used to solve for x, the number of days thecustomer paid for pet sitting?
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If the initial fee is $20 and additionally $15 is charged per day, then the total amount is given by:
[tex]A=20+15x[/tex]Where "x" is the number of days and "A" the total amount to pay. Since the total amount is less than $110, then we have the following inequality:
[tex]20+15x\le110[/tex]This is the inequality that can be used to determine the value of "x".
Help mee pleasee!!
thank you <3
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As a function, the cost C(x) of publishing the newsletter would be C(x) = 75.00 + 0.25x, where the number of copies printed is x.
What is a function?The function is defined as a mathematical expression that defines a relationship between one variable and another variable.
We have been given that the cost of producing a newsletter is an initial charge of $75.00 for formatting and editing plus $0.25 for printing each copy.
Let the number of copies printed x and the cost C(x) of printing the newsletter as a function
As per the given data, the function would be as:
C(x) = 75.00 + 0.25x
Therefore, the cost C(x) of printing the newsletter as a function expressed would be C(x) = 75.00 + 0.25x.
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help meeeeeeeeee pleaseee
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Answer:
I think this would convert to (-infinity,-4).
Step-by-step explanation:
Forgive me if I'm wrong, but this is the best i could remember from when I was learning this.
I got stuck with my math homeworkI was trying to figure these equations for 2 HOURS STRAIGHT (i gave up )
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SOLUTION
Given the question in the image, the following are the solution steps to answer the question.
STEP 1: Write the given equation
[tex]1-5\left(x-1\right)=2\left(2x-1\right)-x[/tex]STEP 2: Simplify the equation
Expand the two sides of the equation
[tex]\begin{gathered} 1-5(x-1)=2(2x-1)-x \\ 1-5x+5=4x-2-x \end{gathered}[/tex]STEP 3: Simplify both sides
[tex]\begin{gathered} -5x+6=3x-2 \\ \mathrm{Subtract\:}6\mathrm{\:from\:both\:sides} \\ -5x+6-6=3x-2-6 \\ -5x=3x-8 \\ \mathrm{Subtract\:}3x\mathrm{\:from\:both\:sides} \\ -5x-3x=3x-8-3x \\ -8x=-8 \\ \mathrm{Divide\:both\:sides\:by\:}-8 \\ \frac{-8x}{-8}=\frac{-8}{-8} \\ \\ \therefore x=1 \end{gathered}[/tex]Hence, the value of x is 1
. When you are translating a number from scientific notation to standard form, what does the
exponent tell you?
O the number of zeroes to add to the end of the original number
O the number to multiply by the first factor
O the number of places to move the decimal point
O the number of times to multiply the first factor by itself?
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Answer:
A. The number of zeroes to add to the end of the original number
Step-by-step explanation:
Solve this or I will eat all of your pickles
Also I will mark brainliest :)
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list the transformations
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Answer:
on what?
Step-by-step explanation:
.name three fractions that are equivalent to 2/5
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Answer:
4/10, 20/50, and 40/100
Hope this is helpful
what is the distance between points (4,0) and (0,3)1 unit 5 unit7 unit25 unit
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We want to find the distance between the points:
[tex](4,0)\text{ and }(0,3)[/tex]For doing so, we remember the formula of the distance between two points:
[tex]d(P,P^{\prime})=\sqrt[]{(x_1-x_2)^2+(y_1-y_2)^2}[/tex]Where P(x₁,y₁) and P'(x₂,y₂). Applying the formula we get:
[tex]\begin{gathered} d=\sqrt[]{(4-0)^2+(0-3)^2} \\ =\sqrt[]{4^2+3^2} \\ =\sqrt[]{16+9} \\ =\sqrt[]{25} \\ =5 \end{gathered}[/tex]This means that the distance between the points (4, 0) and (0, 3) is 5 units.
Find the price of one candy bar if sixteenth candy bars cost $128
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sixteen candy bars cost $128
Divide the cost by 16 to get the price of one candy bar.
[tex]\frac{128}{16}=8[/tex]Therefore the answer is $8
Answer:
$8 per candy bar
Step-by-step explanation:
128/16 = 8
Write a quadratic function in standard form whose graph passes through the given points1. (-1,5), (0,3), (3,9)
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The Standard Form of a Quadratic Function:
[tex]\text{ y = ax}^2\text{ + }bx\text{ + c}[/tex]Using the given points (-1,5), (0,3), and (3,9), let's substitute each point to the equation.
At (-1,5):
[tex]\text{ y = ax}^2\text{ + bx + c }\rightarrow5=a(-1)^2\text{ + b(-1) + c}[/tex][tex]\text{ 5 = a - b + c}[/tex]At (0,3):
[tex]\text{ y = ax}^2\text{ + bx + c }\rightarrow3=a(0)^2\text{ + b(0) + c}[/tex][tex]\text{ 3 = c}[/tex]At (3,9):
[tex]\text{ y = ax}^2\text{ + bx + c }\rightarrow9=a(3)^2\text{ + b(3) + c}[/tex][tex]\text{ 9 = 9a + 3b + c}[/tex]We now get these equations:
5 = a - b + c ; 3 =c; 9 = 9a + 3b + c
Let's determine the value of a, b and c. We get,
Substituting 3 = c to 5 = a - b + c,
[tex]\text{ 5 = a - b + c }\rightarrow\text{ 5 = a - b + 3 }\rightarrow\text{ a - b = 2}[/tex][tex]\text{ b = a - 2}[/tex]Let's substitute 3 = c and b = a - 2 to 9 = 9a + 3b + c,
[tex]\text{ 9 = 9a + 3b + c }\rightarrow\text{ 9 = 9a + 3(a-2) + 3}[/tex][tex]\text{ 9 = 9a + 3a - 6 + 3 }\rightarrow\text{ 12a = 9 + 6 - 3 }\rightarrow\text{ 12a = 12}[/tex][tex]\text{ a = }\frac{12}{12}\text{ = 1}[/tex]Since a = 1, let's solve for the value of b which is b = a - 2.
[tex]\text{ b = a - 2 }\rightarrow\text{ b = 1 - 2}[/tex][tex]\text{ b = -1}[/tex]Since we've identified that a = 1, b = -1 and c = 3, let's substitute the values to the standard form of a quadratic function to be able to make the equation.
[tex]\text{ y = ax}^2\text{ + bx + c }\rightarrow y=(1)x^2\text{ + (-1)x + (3)}[/tex][tex]\text{ y = x}^2\text{ - x + 3}[/tex]Therefore, the quadratic function in a standard form whose graph passes through the given points (-1,5), (0,3), (3,9) is y = x^2 - x + 3.
1 The midpoint of AB is M. If the coordinates of A are (2,-6) and the coordinates of Mare (5, -1), find the coordinates of B.
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The midpoint of two points is given as
(x1 + x2)/2, (y1 + y2)/2
Given that the coordinates of the midpoint are (5, -1), let the coordinates of point B be x2 and y2
(2 + x2)/2 = 5
2 + x2 = 10
x2 = 10 - 2
x2 = 8
(-6 + y2)/2 = -1
-6 + y2 = -2
y2 = -2 + 6
y2 = 4
The coordinates of B are (8,4)
A club is selling snacks at a track meet. Oranges cost $1 each and protein bars cost $4 each. They sell 100 items and collect 304. Describe what the solution means in the context of the situation. Explain your thinking
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By writing and solving a system of equations, we will see that the club sold 32 oranges and 68 bars.
What the solution means?Here the solution will be the number of oranges and protein bars sold.
Let's define:
x = number of oranges.
y = number of bars.
We know that they sell 100 items and win a total of $304, then we can write the system of equations:
x + y = 100
x*$1 + y*$4 = $304
Isolating x on the first equation we get:
x = 100 - y
Replacing that in the other equation we get:
(100 - y)*$1 + y*$4 = $304
$100 - y*$1 + y*$4 = $304
y*$3 = $304 - $100 = $204
y = $204/$3 = 68
y = 68
And the value of x is:
x = 100 - y = 100 - 68
x = 32
That is the solution, x = 32 and y = 68.
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PLSSS HELPPPPP IM RLYYYYY CONFUSEDDDDDD
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Answer:
Top Left: -6
Top Right: -x
Bottom Left: 12x
Bottom Right: 2x^2
Trinomial: 2x^2 + 11x - 6
Step-by-step explanation:
Hello! Let's help you with your question here!
So, box method. From your question, the process is pretty easy. It would require a bit more work when factoring a trinomial.
The equation in question is already factored which is very useful, now it's a matter of the values in the box. I am on the assumption that the two top boxes and the two left boxes are filled in for you and you just need to fill the middle (if that isn't the case, do let me know). To just fill the boxes in the middle, evaluate it like you would multiplying rows and columns. So, it would be as such:
6 x
-1 -6 -x
2x 12x 2x^2
In terms of simplifying, we use FOIL to expand it out into a trinomial and collect like terms. Therefore, it becomes:
[tex](x+6)(2x-1) = (x*2x)+(x*(-1))+(6*2x)+(6*(-1))[/tex]
[tex]= 2x^2 + (-x) + (12x) + (-6)[/tex]
[tex]=2x^2+11x-6[/tex]
Let me know if there are any questions and if it is wrong, do let me know!
Find the equation of the given line,Find the equation of the line passing through (2, 1) with slope 3.у =
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Tori, this is the solution to the exercise:
Step 1: Let's remember that this is a case that we can solve using the following equation form:
y = mx+b, where m is the slope and b is the y-intercept.
Step 2: Solving for b:
y = mx + b
We replace x and y with the coordinates:
1 = 3 * 2 + b
1 = 6 + b
b = 1 - 6
b = - 5
Step 3: Therefore, the equation of the line that passes through the point (2,1) with a slope of 3 is:
y = 3x - 5
(18−4²+2)²1÷4⋅1/2 please help
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Answer:
70 8/9
Step-by-step explanation:
I think that is correct answer. I don't know if it is correct.
1 - Determine whether the given function is even, odd, or neither.a. [tex]f(x) = x ^{3} \times x ^{2} - 4[/tex]b. [tex]f(x) = 4x^{2} + x^{4} [/tex]2 - Evaluate the piece wise function at the given value of the independent variable. (picture)
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We have a piecewise function that we should evaluate based on the condition of the independent variable
It is the value of the independent variable that will dictate which of the two equations to use
We can see that the value of the independent variable given is -3
Mathematically, -3 is not greater than 3; so this means the value of the independent variable given falls within the domain of the second part of the piece-wise function
Hence, we are to evaluate f(x) = -(x + 1) at the point x = -3
Thus;
f(-3) = -(-3 + 1)
f(-3) = -(-2)
f(-3) = 2
Jennifer made a cake and brownies. Her cake dish was 8 inches long, 5 inches wide and 2 inches deep. Her brownie tin was 9 inches long, 4 inches and 2 inches deep. Which dish has a larger volume? By how much?
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Answer:
The cake is larger by 8 in^3
Step-by-step explanation:
The volume equals the product of the length of all 3 sides, or length * height * width
The volume of the cake is 8in*5in*2in which equals 80 in^3
The volume of the brownie tin is 9in*4in*2in which is 72 in^3
Clearly, the cake has more volume since 80 in^3 > 72 in^3
It is greater by the brownie tin by 80 in^3 - 72 in^3, or 8 cubic inches.
The probability the Shane will sink a foul shot is 80%. If Shane attempts 40 foul shots, what is the probability that he sinks at least 28 shots? Round your answer to the nearest whole percenta-96%b-90%c-95%d-80%
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For this problem we have to calculate the probability that x is greater or larger than 28
[tex]\begin{gathered} P(x\ge28)=\Sigma P(x=i) \\ i\text{ goes from 28 to }40 \end{gathered}[/tex]For each i, the probability
[tex]P(x=i)=\frac{40!}{28!\cdot12!}\cdot0.8^i\cdot0.2^{40-i}[/tex]Now computing the sum:
[tex]P(x\ge28)=96[/tex]The answer is 96%
Find the values at the 25th and 60th percentiles for the data set. The value at the 25th percentile is_____.
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Answer:
25th percentile: 5
60th percentile: 12
Explanation:
To find the percentile, we need to organize the data from lowest to greatest, so
1 3 4 4 5 6 6 7 8 8 9 12 14 15 17 17 19 20 20 20
Therefore, there are 20 values in the data set.
The position of the 25th percentile can be calculated as:
[tex]\frac{25(n)}{100}=\frac{25(20)}{100}=5[/tex]Then, the position of the 25th percentile is 5th. In this case, the number in this position is 5 so the 25th percentile is 5
In the same way, we can calculate the position for the 60th percentile as follows:
[tex]\frac{60(n)_{}}{100}=\frac{60(20)}{100}=12[/tex]Then, the position of the 60th percentile is the 12th. In this case, this value is 12, so the 60th percentile is 12.
So, the answers are:
25th percentile: 5
60th percentile: 12
What is the area of triangle ABC?The area of triangle ABC is___ in²
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ANSWER:
187.5 in^2
STEP-BY-STEP EXPLANATION:
We know that the area of a triangle is equal to the base times the height divided by 2
In the figure we have these values
The base is 3 squares that is 15 inches and the height is 5 squares that is 25 inches since each square measures 5 inches
The area is
[tex]A=\frac{b\cdot h}{2}=\frac{15\cdot25}{2}=\frac{375}{2}=187.5[/tex]The area of the triangle is 187.5 square inches
What is the equation of the line that is parallel to the line y = x + 4 and passes through the point (6, 5)?y = x + 3y = x + 7y = 3x – 13y = 3x + 5
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You have to find a line that is parallel to y=x+4 and passes through the point (6,5)
Parallel lines always have the same slope.
The slope of the line is the coefficient that multiplies the x term, in this case, there is no number multiplying "x" but that does not mean that the line has no slope, turns out that the line has a slope equal to "1" when the variables (letters in an equation) are "alone" the coefficient is 1
So for both lines, the slope is
[tex]m=1[/tex]Using the slope and the known point of the line, you can determine the equation of said line by using the "point-slope" form
[tex]y-y_1=m(x-x_1)[/tex]Where
(x₁,y₁) are the coordinates of a point of the line
m is the slope
Replace the coordinates of the point and the slope in the formula
[tex]y-5=1(x-6)[/tex]Next is to solve for y to express it in slope-intercept form
[tex]\begin{gathered} y-5=1\cdot x-1\cdot6 \\ y-5=x-6 \\ y-5+5=x-6+5 \\ y=x-1 \end{gathered}[/tex]The equation for a line parallel to y=x+4 that passes through point (6,5) is
[tex]y=x-1[/tex]Choose the coefficient closest to 0.Choose the coefficient with the least value.
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Explanation:
In the given graph f(x) = a |x| .
The coefficient ''a'' increases the graph of the function will shrink and it will goes to zero.
And when coefficient ''a'' decreases the graph will expands.
The graph in the option C represents the graph below x-axis and the coefficient of |x| will be negative so it will be least value.
Answer: Option C.
This shows a scale drawing of Javier's room. The scale of his room is 1 cm = 2 ft. 5 cm 6.5 cm How much carpet does Javier need to purchase to completely cover his floor? A 130 square feet B. 120 square feet C. 111 square feet
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Answer:
A 130 ft²
Step-by-step explanation:
if I understand this right, then the scale is 1 cm on a drawing is 2 ft in reality.
the room in the drawing measures 5 cm × 6.5 cm.
the question about how much carpet is needed is the question about the area of the floor of the rectangle room.
first e need to get the real measurements :
5 cm = 5×1 cm = 5 × 2 ft = 10 ft
6.5 cm = 6 5×1 cm = 6.5×2 ft = 13 ft
so, the real room is 10 ft × 13 ft.
and the area is therefore 130 ft².
