Answer:
rotation on x axis;
(x, y) 》(x, -y)
So,(-6,5) is the correct answer.
Answer:
(-6,5)
Step-by-step explanation:
(x,y) ------》 (x,-y) {reflection over x-axis}
I NEED HELP ON THIS ASAP!
I need help on questions 2a and b
Answer:
a) Since the question is asking for a disjunction, involving an or, this means that the answer to the question can be either solution, not both.
b) Conjunction involves an "and" so it means both answers
Step-by-step explanation:
El papa de Carlos compró 5 películas por $250 si solo comprara 2 películas ?cuanto pagaría?
What is the slope of the line that contains the points (2, -8) and (-4, 4)?
O2
112
id
2
O-2
Answer:
-2
Step-by-step explanation:
Δy =4- (-8) =12
Δx = -4 -2 = -6
12/(-6) =-2
Question ID 111294, seed 6439
The graph illustrates a normal distribution for the prices paid for a particular model of HD television. The mean price paid is $1600 and the standard deviation is $95.
What is the approximate percentage of buyers who paid more than $1790?
__________________%
What is the approximate percentage of buyers who paid between $1505 and $1695?
__________________%
What is the approximate percentage of buyers who paid between $1600 and $1885?
__________________%
What is the approximate percentage of buyers who paid between $1410 and $1600?
__________________%
What is the approximate percentage of buyers who paid more than $1885?
__________________%
What is the approximate percentage of buyers who paid between $1600 and $1695?
__________________%
The percentage of buyers who paid more than $1790 is 2.275%.
The percentage of buyers who paid between $1505 and $1695 is 68.29%
The percentage of buyers who paid between $1600 and $1885 is 15.73%
What is z score?The relationship between a value and a set of values' mean is described by the statistical measurement known as the Z-score. Standard deviations from the mean are used to measure Z-score. A Z-score of zero means the data point's score is the same as the mean score.
Given:
Let X be a random variable representing the prices paid for a particular model of HD television.
It is provided that X follows a normal distribution with mean, μ = $1600 and standard deviation, σ = $95.
1. P(X> 1790)
= P( Z> (1790- 1600)/ 95)
= P(Z> 2)
= 1- P(z< 2)
= 1- 0.97725
= 0.02275
= 2.275%
2. P( 1505 < X < 1695)
= P( -1 < Z < 1)
= 0.68269
3. P( 1600 < X < 1885)
= P( 1 < Z < 3)
= P( Z< 3 ) - P(Z < 1)
= 0.99865 - 0.84134
= 0.15731
4. P( 1410 < X < 1600)
= P( - 2 < Z < 0)
= P( Z< 0 ) - P(Z < -2)
= 0.5 - 0.02275
= 0.47725
5. P (X> 1885)
= P( Z> 3)
= 1- P(Z<3)
= 0.0013
= 0.13%
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5 1/3 + 7 1/4 = ?
Pls help
Answer:
13 7/12
Step-by-step explanation:
5+7+13
4/12+3/12+7/12
25.A fruit seller bought 600 bananas at Rs.16 a dozen. He sold 200 of
them at 4 for Rs.5 and the remaining at 2 for Rs.3. Find gain or loss
percent.
Consider a triangle ABC like the one below. Suppose that B=64°, C=72°, and c=19. (The figure is not drawn to scale.) Solve the triangle. Round your answers to the nearest tenth. I found angle A which is 44
Answer:
[tex]m\angle A = 44\textdegree, a = 13.9, b = 18.0[/tex]
Step-by-step explanation:
Step 1: Solve for the Missing Angle
The measures of all of the interior angles of a triangle will always add up to [tex]180\textdegree[/tex]. Therefore,
[tex]m\angle A = 180\textdegree - (m\angle B + m\angle C) = 180\textdegree - (64\textdegree + 72\textdegree) = 44\textdegree[/tex]
Step 2: Solve for the Missing Sides
When we are given the side lengths and angle measures of a triangle, we can use either the Law of Sines or the Law of Cosines to solve for the rest of the triangle.
The Law of Sines is as follows: [tex]\frac{sinA}{a} = \frac{sinB}{b} = \frac{sinC}{c}[/tex]
The Law of Cosines is as follows: [tex]c^{2} = a^{2} +b^{2} -2abcosC[/tex] (you can exchange c for a or b, respectively)
In this case, we are only given 1 side length and all 3 angle measures, so it would be more appropriate to use the Law of Sines as we need at least 2 side lengths to use the Law of Cosines.
Now that we know which formula to use, let's start by solving for [tex]a[/tex], using the given values of [tex]c=19[/tex], [tex]\angle A = 44\textdegree[/tex], and [tex]\angle C = 72\textdegree[/tex].
Substituting these values in, we get:
[tex]\frac{sinA}{a} = \frac{sinC}{c} \\ \frac{sin44\textdegree}{a} = \frac{sin72\textdegree}{19}\\a=\frac{19sin44\textdegree}{sin72\textdegree} \approx \bf 13.9[/tex]
Repeating this process for [tex]b[/tex], this time using [tex]\angle B = 64\textdegree[/tex], we get:
[tex]\frac{sinB}{b} = \frac{sinC}{c} \\ \frac{sin64\textdegree}{b} = \frac{sin72\textdegree}{19}\\b=\frac{19sin64\textdegree}{sin72\textdegree} \approx \bf 18.0[/tex]
The growth rate of Covid patient is 5% per hour. If the number of Covid patient in the morning 8:00 am is 44,100, what was the number before 2 hours?
Answer:
the answer to this question is 6:00
The number of patients before 2 hours is 40,000.
What is Percentage?A value or ratio that may be stated as a fraction of 100 is referred to as a percentage in mathematics.
As per the given data:
The growth rate of covid patients is given and number of patients at 8:00 am is 44,100.
We have to find out what was the number before 2 hours.
Growth rate (G) = 5% per hour.
Number of patients at 8 : 00 AM = 44,100
Let's assume the number of patients 2 hours before is P.
Patients after two hours:
P(1 + G/100)^2
= P(1 + 5/100)^2
= P(1.05)^2
= 1.1025P
From the given data:
1.1025P = 44,100
P = 40,000
The number of patients before 2 hours is 40,000.
Hence, The number of patients before 2 hours is 40,000.
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Someone please Help. My brain is dead rn with this! (Btw can you put in a explanation with the answers, please and thank You)
1. The 08 08 bus takes 89 minutes to go from Birmingham to Coventry
2. The latest time Chris have to leave his house is 7:26
How to solve the problem?The bus time table shows that only two buses will leave can meet up with Chris resuming time. The bus 7:05 and the bus that leave by 7: 33
Calculating the latest time Chris could leave his home is by taking the second bus.
7 minutes to walk from his house to his bus stop. Therefore the 7minutes is deducted from the starting time of the second bus.
7:33-7minutes = 7: 26 am
Therefore the latest time he should leave home to meet up with 9:30 am resuming is 7:26 am
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Find M∠ABD.
ABC= 30*
CBD= 45*
let f(x)=∫x1sin(t)tdt. find the indicated derivative.
The function F(x) has a derivative f'(x) = sin(x) - xcos (x). This is accomplished by employing the chain rule and the basic calculus theorem.
The calculus fundamental theorem can be used to derive the derivative of f(x).
Let x1sin(t)dt equal F(x). The fundamental theorem of calculus states that F'(x) = sin (x).
Let g(x) now equal x. The chain rule then states that f'(x) = g' (x) F'(x)= g'(x)sin(x)=cos (x).
Therefore, f'(x) = sin(x) - xcos is the derivative of f(x) (x).
F(x) has a derivative f'(x) = sin(x) - xcos (x). Applying the chain rule and the calculus's fundamental theorem will get this result. The integrand assessed at the integral's upper limit is equivalent to the derivative of a definite integral, according to the calculus fundamental theorem. According to the chain rule, the derivative of a function made up of two functions is equal to the sum of the derivatives of the inner and outer functions. The inner function in this instance is sin(t), while the outer function is x. Thus, by using the chain rule and the fundamental theorem of calculus, we can determine that f'(x) = sin(x) - xcos (x)
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Jimmy went on a tour to Europe with $5,000. He spent 4/25 of it on hotel accommodation, 3/20 of it on airfare 1/10 of it on shopping and 1/5 on the remainder How much more did he spend on hotel accommodation than on food?
Answer:
Jimmy spent 4/25 of his $5,000 budget on hotel accommodation, which is equal to $2,000. He spent 3/20 of his budget on airfare, which is equal to $1,500, 1/10 of his budget on shopping, which is equal to $500, and 1/5 of his budget on the remainder, which is equal to $1,000. This means that Jimmy spent $2,000 on hotel accommodation, which is $500 more than he spent on food.
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Determine the value(s) of the variable for which the expression is undefined.
1)-
5
x-10
A)x= 10, x=-5
12
4)=
2)
Write the rational expression in lowest terms.
8z³
3)
20z6
15
12-4
C)
A).
A)
A) Never undefined-any real number may be substituted for y
B) 15
C) -2, 2
D) 4
+ 5y - 36
1²-16
y + 9
y-4
8
20z³
B)x= -10
5y-36
16
C)x=10
B) 23⁹
2
99-3333
B) cannot simplify
D)
y+9
y+4
D) x=5
D) 2535
1)
3)
4)
Whole page pls
The lowest term of rational expression is 4z⁶/3
What is rational expression?
A rational expression is simply a quotient of two polynomials. Or in other words, it is a fraction whose numerator and denominator are polynomials.
Rational expressions look like fractions that have variables in their denominators (and often numerators too). For example, x 2 x + 3 \dfrac{x^2}{x+3} x+3x2 start fraction, x, squared, divided by, x, plus, 3, end fraction is a rational expression.
To write a rational expression in lowest terms, we must first find all common factors (constants, variables, or polynomials) or the numerator and the denominator. Thus, we must factor the numerator and the denominator. Once the numerator and the denominator have been factored, cross out any common factors.
A) The expression is undefined when x=10 or x=-5 because the denominator would be equal to zero, which is undefined in mathematics.
B) The rational expression 8z³/20z⁶ can be simplified to 2z³/5z⁶. The expression can be further simplified by dividing both the numerator and denominator by z³, giving us 2/5z³.
C) The expression 12-4/5y-36 is undefined when y=-9 or y=4 because the denominator would be equal to zero, which is undefined in mathematics.
D) The expression (99-3333)/2535 cannot be simplified as the numerator and denominator are prime numbers and cannot be further reduced.
So, the answer is:
A) x=10, x=-5
B) 2/5z³
C) y=-9, y=4
D) cannot simplify
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Select the correct answer. The sum of two consecutive numbers is 157. This equation, where n is the first number, represents the situation: 2n + 1 = 157. What is the first number? A. 77 B. 78 C. 79 D. 80
Answer:
The equation 2n + 1 = 157 represents the situation where the sum of two consecutive numbers is 157.
To find the first number, we can start by subtracting 1 from both sides of the equation:
2n = 156
Then we can divide both sides by 2:
n = 78
So the first number is 78, which corresponds to the answer choice B.
Step-by-step explanation:
Lowest common multiple for 1080, 1188, 1815
Answer:
To find the lowest common multiple (LCM) of 1080, 1188, and 1815, we need to find the smallest number that is a multiple of all three numbers.
One way to find the LCM is to use prime factorization. We can prime factorize each number and then multiply the highest exponent of each prime factor to get the LCM.
1080 = 2^4 * 3^3
1188 = 2^2 * 3 * 199
1815 = 5 * 11 * 163
The LCM is:
2^4 * 3^3 * 5 * 11 * 163 = 1080 * 11 * 163
So the LCM of 1080, 1188, 1815 is 207940.
Can someone explain how to solve this problem
Answer: [tex]\displaystyle 2x^4 + 9x^3-8x^2+9x -13[/tex]
Step-by-step explanation:
Given:
[tex]\displaystyle (2x^4 + 9x^3 -8)-(8x^2-9x+5)[/tex]
Subtract the second term:
[tex]\displaystyle (2x^4 + 9x^3 -8)-8x^2+9x-5[/tex]
Reorder by the power's degree:
[tex]\displaystyle 2x^4 + 9x^3-8x^2+9x -8-5[/tex]
Combine like terms:
[tex]\displaystyle 2x^4 + 9x^3-8x^2+9x -13[/tex]
how to compute the mean median and mode of three sets of scores
To compute the median of three sets of scores, we need to arrange the scores in order from smallest to largest and then select the middle score.
Mean, median and mode are measures of central tendency and are used to describe the central value of a set of data. The mean is the average of all the values in the set, the median is the middle value and the mode is the most frequently occurring value.
To compute the mean of three sets of scores, we need to sum up all the scores and divide by the total number of scores. This can be represented by the formula:
Mean = (Score1 + Score2 + Score3) / 3
To compute the median of three sets of scores, we need to arrange the scores in order from smallest to largest and then select the middle score. This can be represented by the formula:
Median = (Score2 + Score3) / 2
To compute the mode of three sets of scores, we need to identify the score that occurs the most frequently. This can be represented by the formula:
Mode = Most Frequently Occurring Score
For example, if the three scores are 3, 7, and 4, then the mean is (3 + 7 + 4) / 3 = 4.67, the median is (3 + 4) / 2 = 3.
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Which of the following polygons are quadrilaterals? Select all that apply.
Use the Binomial Theorem to expand (a+b)^15. You can use your calculator to determine the coefficient. Write the step.
Binomials include formulas such as a + b, x - y, etc. For the expansion of a binomial raised to exponents 2 and 3, we have a set of algebraic identities. Examples are (a + b)2 = a2 + 2ab + b2.
What Are Binomial Expansion Formulas?Let us review the definition of a "binomial" before understanding the formulas for binomial expansion. An expression in algebra with two terms is called a binomial.
Binomials include formulas such as a + b, x - y, etc. For the expansion of a binomial raised to exponents 2 and 3, we have a set of algebraic identities. Examples are (a + b)2 = a2 + 2ab + b2.
However, what happens if the exponents are larger numbers? The expansion can be difficult to locate manually.
This procedure is made simpler using the binomial expansion formula. Learn the formula for the binomial expansion and a few examples with solutions.
The expansion of (a + b)3 can be found in Example 1.
Solution:
The sum of (a plus b)3
by applying the binomial expansion formula,
(x + y)n = nC 0 xn y0 + nC 1 xn-1 y1 + nC 2 xn-2 y2 + nC 3 xn-3 y3 +... + nC n 1 x yn-1 + nC n x0yn
(a + b)
3 = 3C
0 a3 + 3C
1 a(3 - 1) (3 - 1) b + 3C
2 a(3 - 2) (3 - 2) b2 + 3C
3 a(3 - 3) b3
= ( 3! / [(3-0)!0!] ) a3 + ( 3! / [(3-1)!1!] ) a(3 - 1) (3 - 1) b + ( 3! / [(3-2)!2!] ) a(3 - 2) (3 - 2) b2 + ( 3! / [(3-3)!3!] ) a(3 - 3) b3
= (a3 first) + (a2 second) + (a1 second) + (a0 third)
= a3 + 3 a2, b + 3 a b2, and b3
(A + B)3 = A3 + 3 A2 B + 3 A B 2 + B3.
The Complete Question.
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What is the solution to the equation?
√2x+10 -6=2
Please show the steps! I will give brainliest!
The solution to the equation is x = 27
How to determine the solution to the equationFrom the question, we have the following parameters that can be used in our computation:
√2x+10 -6=2
Add 6 to both sides of the equation
This gives
√2x+10 = 8
Square both sides
So, we have the following representation
2x + 10 = 64
Subtract 10 from both sides
2x = 54
Divide by 2
x = 27
Hence, the solution is 27
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how many micrograms are in 65.3 kg?
The total number of micrograms present in the 65.3 kilograms is equal to 65,300,000,000 micrograms.
Conversion of units from kilogram to grams is :
1 kilogram = 1,000 grams
Conversion of units from grams to micrograms is :
1 grams = 1,000,000 micrograms
⇒ 1 kilogram = ( 1,000 × 1,000,000 ) micrograms
⇒1 kilograms = 1,000,000,000 micrograms
Substitute the required value for the converting kilogram to micrograms we get,
⇒ 65.3 kilograms = ( 65.3 × 1,000,000,000 ) micrograms
⇒65.3 kilograms = 65,300,000,000 micrograms
Therefore, the total quantity of micrograms in 65.3 kilograms is equal to 65,300,000,000 micrograms.
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Find the value of z.
15 cm
5 cm
82=
20 cm
Give your answer correct to 1
decimal place.
Z
Submit Answer
cm
Answer:
z=12.25
Step-by-step explanation:
first we are going to find the hypotenus x
of the first part of the tiangle as shown in my diagram, using the Pythagoras rule-
hyp= x
opp= 15
adj=5
thus hypothenus²=opposite²+adjacent²
x²=15²+5²
x²=225+25
x²=250
the you use √ to find x
√x²=√250
x=15.81
step 2= to find z
hyp=20
opp:z
adj:15.81
hyp²=opp²+adj²
20²=z²+15.81²
400=z²+250
z²+250=400
z²=400-250
z²=150
√z²=√150
z=12.25
Answer:
z ≈ 12.2 cm
Step-by-step explanation:
using Pythagoras' identity in the 2 right triangles.
the square on the hypotenuse is equal to the sum of the squares on the other 2 sides.
consider the right triangle on the left
let the third side, the hypotenuse be x , then
x² = 5² + 15² = 25 + 225 = 250
consider the right triangle on the right , then
x² + z² = 20²
250 + z² = 400 ( subtract 250 from both sides )
z² = 150 ( take square root of both sides )
z = [tex]\sqrt{150}[/tex] ≈ 12.2 cm ( to 1 decimal place )
Consider the following parametric equations. Answer parts a through d. x=t?. y=t+4: -4 st 54 a. Make a brief table of values oft, x, and y t -4 -2 0 2 4 X(t) 16 4 0 16 y 0 2 26 B (Type integers or decimals.)
The table of x, y and t for the given parametric equations is
The Table is as follows:
t -4 -2 0 2 4
x 16 4 0 4 16
y 0 2 4 6 8
The parametric equations are given:
x = t², y = t + 4; -4 ≤ t ≤ 4
if t = -4
x = (-4)² = 16
y = -4 + 4 = 0
if t = -2
x = (-2)² = 4
y = -2 + 4 = 2
if t = 0
x = (0)² = 0
y = 0 + 4 = 4
if t = 2
x = (2)² = 2
y = 2 + 4 = 6
if t = 4
x = (4)² = 16
y = 4 + 4 = 8
The Table is as follows:
t -4 -2 0 2 4
x 16 4 0 4 16
y 0 2 4 6 8
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What do I put in the boxes??!!
The value of 845 divided by 3 will be 281 R 2.
How to calculate the expressionAn expression is simply used to show the relationship between the variables that are provided or the data given regarding an information. In this case, it is vital to note that they have at least two terms which have to be related by through an operator. Some of the mathematical operations that are illustrated in this case include addition, subtraction, etc.
In this case, 845 divided by 3 will be:
= 845 / 3
= 281 2/3
Therefore, 845 ÷ 3 = 281 R 2.
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Absolute Value Functions:
Determine the value of y, if x is -7
Answer:
y = 17
Step-by-step explanation:
the absolute value always gives a positive value , that is
| - a | = | a | = a
given
y = | x | + 10 ( substitute x = - 7 into the equation )
y = | - 7 | + 10 = | 7 | + 10 = 7 + 10 = 17
use the washer method to determine the volume of the solid formed when the region bounded by y=12x2, y=0, and x=2 is rotated about the line y=3.
The volume of the solid can be calculated by integrating the area of the cross section over the entire height of the solid.
The washer method is a way to calculate the volume of a solid that is created when a region is rotated about a certain line.
Here you find the area of this cross section, and multiply it by the circumference of a circle with the same radius as the cross section.
To use the washer method to find the volume of the solid created when the region bounded by
=> y = 12x², y=0, and x=2 is rotated about the line y=3,
we first need to find the cross section of the solid at different heights along the line of rotation.
To do this, we need to find the points where the plane perpendicular to the line of rotation intersects the original region. This is done by finding where the equation of the plane and the equation of the original region intersect.
Next, we find the area of the cross section and multiply it by the circumference of a circle with the same radius.
Finally, we add up all of these washer volumes to find the total volume of the solid.
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Our friend’ heart beat 18 time in 15 econd when at ret. While running, your friend’ heart beat 25 time in 10 econd. A. Find the heart rate in beat per minute at ret and while running. B. How many more time doe your friend’ heart beat in 3 minute while running than while at ret?
The heart rate is in beats per minute at rest and while running 72 times each minute.
150 times/minute friend's heartbeat in 3 minutes while running than while at rest
Part 1
When at rest, 18 times in 15 seconds.
1 second equals 18/15
= 1.2 cycles per second
1 minute equals 1.2x60
72 times each minute.
Part 2
10 seconds of running, 25 times.
1 second equals 25/10
= 2.5 seconds/minute
1 minute equals 2.5 x 60
150 times each minute.
Part 3
At rest, in 3 minutes, 72 x 3 = 216
Running for 3 minutes equals 150 x 3 = 450.
How many more times in three minutes does your friend's heart pulse while they are exercising than when they are not?
Response: 450 - 216
= 234 times
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find the ratios and reduce them in their lowest terms. 1m and 75 cm
Answer:
4:3
Step-by-step explanation:
1m = 100cm
75cm = 75cm
ratio of 1m:75cm
(100cm:75cm)÷25 = 4:3
so 1m:75cm = 4:3
Drake ue 9/4 cup of ugar to make 9 mug of brownie. How much ugar i required to make one brownie?
Drake uses 9/4 cup of sugar to make 9 mug of brownie. Then the amount of sugar needed to make one brownie is 1/4 cup of sugar.
Determine how much sugar is needed
These are the specified parameters:
9/4 cup of sugar to make 9 mug of brownie.
Determine much sugar to make one brownie
Lots of sugar = cup of sugar : mug of brownie
= 9/4 : 9
= 9/4 × 1/9
= 1/4
So the amount of sugar needed to make one brownie is 1/4 cup of sugar.
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a group of students is asked if they travel to school by car c) work out the mean number of students in each car
Answer:
wow this is highschool
Step-by-step explanation:
I'm still in ms so I can't help sozz
Answer: 1.75
Step-by-step explanation:
Add the number of cars (3+4+1) which would give you 8.
Then multiply the number of students in one car by the the number of cars in each row (1x3, 2x4, 3x1) which would give you 3, 8 and 3.
Then you add all 3 numbers together to give you 14.
You then do 14/8 which would give you 1.75
