Does anyone know this answer

Does Anyone Know This Answer

Answers

Answer 1

Answer:

the third option

Step-by-step explanation:

by shifting it up 3, you just add 3 to -7 which is -4

by shrinking it a factor of 1/2, you multiply -2 by 1/2 which is -1


Related Questions

Last one pleaseeeeeee

Answers

Answer:

[tex]C) 7[/tex]

Step-by-step explanation:

[tex]Let\ p(x)\ be\ x^3+kx^2+7x+5\\Let\ g(x)\ be\ (x+6).\\Hence, \ \\The\ zero\ of\ g(x) :\\(x+6)=0\\x=-6\\\\Hence,\\p(x)\ =\ x^3+kx^2+7x+5\\p(-6)=(-6)^3+k(-6)^2+7*-6+5\\=-216+36k-42+5\\=-253+36k\\\\Through\ Remainder\ Theorem\ we\ get\ that\ R=-1\ &\ R=-253+36k [Given]\\Hence,\\-253+36k=-1\\36k=-1+253\\36k=252\\k=7[/tex]

The answer is 7 hope this helps :)

Calculate the average rate of change from 3 to 9 seconds, in feet per second

Answers

Answer:

D is the Answeer

Step-by-step explanation:

Average rate of change from 3 to 9 seconds is -0.475 feet per second

What is Average rate of change?

It is a measure of how much the function changed per unit, on average, over that interval

Given,

P(t) represents the height in feet and t represents the time in second

At t= 3 second, P(t) = 6.26 feet

At t=9 second, P(t) = 3.41 feet

Average rate of change = [tex]\frac{P(b)-P(a)}{b-a}[/tex]

Substitute the values in the equation

Average rate of change = [tex]\frac{P(9)-P(3)}{9-3}[/tex]

[tex]=\frac{3.41-6.26}{9-3}\\=\frac{-2.85}{6}\\[/tex]

= -0.475 feet per second

Hence, the Average rate of change from 3 to 9 seconds is -0.475 feet per second

Learn more about Average rate of change here

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The area of the postcard pictured below is 24 square inches. What is the width b of the message section (in inches)? Pick the equation that would best model this situation.
A. 4(b + 3) = 24
B. 3(4 + b) = 24
C. 4(b - 3) = 24
D. 3(b - 4) = 24

Answers

Answer:

Step-by-step explanation:

4(b + 3) = 24

Answer:

A. 24 = 4(b + 3)

Step-by-step explanation:

Area is equal to length times width. In this case, the length is b + 3 (since both b and 3 are part of the width, with the length being 4.

Substitute into the equation for area:

a = lw

a = 4(b + 3)

The area is 24, so the final answer is:

A. 24 = 4(b + 3)

Chaz kept a record of how many gallons of gas he purchased each day last week. Drag and drop the days into the correct boxes to order the days from the least amount of gas Chaz purchased to the greatest amount of gas Chaz purchased.

Day Gas (in gallons)
Monday 4.5
Tuesday 3.6
Wednesday 4.252
Thursday 3.71
Friday 4.255

Answers

Answer:

The arrangement of days from least to greatest according to number of gallons is:

Tuesday

Thursday

Wednesday

Friday

Monday

Step-by-step explanation:

The given amount of gallons is in decimal form and we have to arrange the numbers in the order from least to greatest.

4.5 is the largest number in the given numbers.

Then comes 4.252 and 4.255

As 0.252<0.255 so 4.252 will be smaller.

The smallest number is 3.6

Arranging the numbers, we get

3.6

3.71

4.252

4.255

4.5

Now arranging the corresponding day to each number,

The arrangement of days from least to greatest according to number of gallons is:

Tuesday

Thursday

Wednesday

Friday

Monday

identify this lobe and y-intercept of the line given by y equals to 4 x - 3​

Answers

Answer:

Slope = 4

y-intercept = -3

Step-by-step explanation:

A slope describe the steepness of a graph, which can also be referred to as gradient. The general equation of a linear graph is given as:

     y = mx ± c

where: m represents the slope of the graph and c the intercept on the required axis.

Given: y = 4x - 3

Comparing this equation with the general equation of a linear graph, it can be observed that; the slope is 4, while the intercept on the y axis is -3.

Thus,

slope = 4

intercept on the y axis = -3

what is the sum of (-2.1x + 3.7) and (5 + 4.9x)?

Answers

Answer: [tex]=2.8x+8.7[/tex]

[tex]=-2.1x+3.7+5+4.9x[/tex]

[tex]=(-2.1x+4.9x)+(3.7+5)[/tex]

[tex]=2.8x+8.7[/tex]

Where did the student go wrong?

Answers

In the second step the distributed the 3 to the 5x and you don’t need to distribute the 3 to the 5x. So it shouldn’t be 15x it should remain 5x

Multiply 3 over 7 times 5over 8

Answers

Answer:

0.26785714285

Step-by-step explanation:

Answer:

Step-by-step explanation:

3/7 * 5/8

This equates to 15/56.

Multiply 3 and 5 (which equals 15).

Multiply 7 and 8 (which equals to 56)

#teamtrees #WAP (Water And Plant)

what is the variance of the following set of data? 5 ,55 , 505, 255, 5, 75 , 85, 65

Answers

Answer:

27964.286

Step-by-step explanation:

i just used calculator soup

Answer:

28,912

Step-by-step explanation:

i also used calculator soup but gave the right answer

Which figure is shown in the drawing?

Answers

ray XY is the answer

Please give Brainliest also I hope this helps!

In the figure, of the given alternatives, a ray XY is shown.

What is a ray?The definition of ray in math is that it is a part of a line that has a fixed starting point but no endpoint. It can extend infinitely in one direction.

Given is the figure as shown in the image.

Of the given options, only a ray given by XY{with overhead arrow} can be seen as it has one starting point at [x] and extends along.

Therefore, in the figure, of the given alternatives, a ray XY is shown.

To solve more questions on geometry, visit the link below -

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If y = -6 when x = 16, find y when x = 8.

Answers

Answer:

y=-3

Step-by-step explanation:

16/2=8

-6/2=-3

Answer:

-3

Step-by-step explanation:

I think this -6/16 = -3/8 divided both sides by 2

Which number sets (i.e. Natural, Whole, Integer, Rational, Real, etc.) are best suited to represent discrete functions? Why? Which number sets are best suited to represent continuous functions? Why?

Answers

Answer:

They are considered      discrete

Step-by-step explanation:

because

i will give brainilest
The table shows the number of each score earned by 120 students on a sixth grade mathematics test.


Score Number of Students
100 9
95 18
90 72
85 15
80 6

What is the ratio of students scoring above 80 to students scoring exactly 80 on this test?

Group of answer choices

1 to 20

19 to 1

1 to 19

20 to 1

Answers

Answer 19:1

Work:
Students scoring above 80 -
9+18+72+15= 114

Students score exactly 80-
6

114/6 = 19

19 students scored above 80 for every 1 student that scored exactly 80.

Help!? Helping my son with geometry ... I have no clue what I’m doing here

Answers

We are Given:

∠1 = 65°

Finding the measure of all other angles with proof:

∠2:

∠1 + ∠2 = 180°           (angle 1 and 2 form a Linear Pair)

65 + ∠2 = 180            (Angle 1 = 65°)

∠2 = 180 - 65

∠2 = 115°

∠3:

∠1  = ∠3            (Angle 1 and 3 are vertically opposite)

65 = ∠3             (Angle 1 = 65°)

∠3 = 65°

∠4:

∠4 = ∠2                  (Vertically opposite angles)

∠4 = 115°                (∠2 = 115°)

∠5:

∠5 = ∠1          (Corresponding angles)

∠5 = 65°        (∠1 = 65°)

∠6:

∠6 = ∠2      (Corresponding angles)

∠6 = 115°    (∠2 = 115°)

∠7:

∠7 = ∠3        (Corresponding Angles)

∠7 = 65°       (∠3 = 65°)

∠8:

∠8 = ∠4        (Corresponding angles)

∠8 = 115°      (∠4 = 115°)

How does the value of c affect the graph of f(x) = et+c?

Answers

Answer: A

Step-by-step explanation: c shifts the graph up or down.

Which exponential expression represents the numerical expression 9⋅9⋅9?


​​93

​​39

​​3×9

9×3

Answers

Answer:

93

Step-by-step explanation:

Answer: The first one 9³

Step-by-step explanation:

Note:   9³ or nine to the third power or 9-cubed is correct, because we are multiplied the number 9 by itself, three times

   The value equal to:    

             9*9*9 is equal to:  9³

     that is, nine to the THIRD power or:

                 nine to the power of three

3x+5=23 what is the value of x?

Answers

Answer:

X = 6

Step-by-step explanation:

Hope this helps!

....

Mr mogi barrowed $9,000 for 10 years to make home improvements if he paid a total of $11,000 in interest in interest at what I test rate did he barrow the money

Answers

Answer:

Step-by-step explanation:

Write 0.0000000068 as a scientific notation

Answers

Answer:

10×6.8 to the 9th power

round 688. to the nearest hundred. Enter your answer in the box below.​

Answers

Answer:

700

Step-by-step explanation:

thats the answer ik

Answer:

700

Step-by-step explanation:

688 is closer to 700 than 600 so it is rounded to 700

PLZ HURRY IT'S URGENT!!!!
Represent the situation as a system of equations.

Rent a Truck rents a moving truck for $40.00 and $0.20 per mile.
Moving R Us rents the same moving truck for $1.00 per mile but with no upfront charge.

Let x represent the number of miles traveled.

Question 5 options:

y=40x+0.20 y=x+1

y=0.20x+40 y=x+1

y=40x+0.20 y=1.00x

y=0.20x+40 y=1.00x

Answers

Answer:

y=0.20x+40; y=1.00x

Step-by-step explanation:

Company 1 is charging upfront and then after u have a unknown variable for how many miles you drive. Company 2 is only charging you 1.00$ per mile driven and depending on how many miles you drove will depend on how much you will pay.

A high school coach wants to buy new shirts for the 25 members of the track team. The coach must spend less than $300 on the shirts and needs to figure out how much he can spend per shirt, s.

Which of the following must be true about the inequality and the resulting graph? Select three options.
The inequality should be written as 25 s less-than 300.
The inequality should be written as 25 s greater-than 300.
The circle is open.
The circle is closed.
The arrow points left.

Answers

The correct options are 1, 3 and 5.

Step-by-step explanation:

Let the price of a new shirts be s.

The number of members is 25. The price of 25 shirts is 25s.

The cost must be less than $300. It means

Therefore option 1 is correct.

Divide both sides by 25.

The sign of inequality is < instead of ≤. It means the 12 is not included in the solution set.

Open circle is used for "<" and ">". Closed circle is used for "≤" and "≥".

Since the sign of inequality is <, therefore the circle is open and option 3 is correct.

The value of s is less than 12.

Therefore the arrow points left and option 5 is correct.

Answer:

A,C,E

Step-by-step explanation:

i got it right on edge 2021

Anyone wanna be freinds

Answers

Answer:

yes

Step-by-step explanation:

Answer:

sure......................................

Simplify the following expression by combining like terms:
7f + 8g + 4f + 3f + 6f + 2g

Answers

Answer:

20f + 10 g or   10(2f + g)

Step-by-step explanation:

7f + 4f + 3f + 6f = 20f

2g + 8g = 10g

PLS MARK BRAINLIEST

Answer:

20f+10g

Step-by-step explanation: That was actually really easy

Matteo is following this recipe to mak
a cake.
He wants to make three of these
cakes.
How much of each ingredient does he
need?
Recipe: Makes 1 cake
6 ounces butter
5 ounces sugar
7 ounces of flour
3 eggs
2 teaspoons (tsps) baking powder
Pls help me I'm trying too sleep and they keep sending me homework

Answers

Answer:

Below is the step by step explaination of the procedure

Step-by-step explanation:

So since he wants to make three cakes we will multiply the recipe by 3 to get the amount of ingredients this person will need.

6*3 = 18 ounces of butter

5*3 = 15 ounces of sugar

7*3 = 21 ounces of flour

3*3 = 9 eggs

2 * 3 = 6 teaspoons of baking powder.

Nina likes to tip restaurant staff 18% when she enjoys the meal and has good service. Which expression represents the amount of tip, in dollars, that Nina will give when she has a positive experience eating a meal that cost n dollars? 0.18n 18n StartFraction n over 18 EndFraction n + 0.18

Answers

Answer:

18n

Step-by-step explanation:

just got done taking the test

Answer:

0.18n

Step-by-step explanation:

5r + 2d
I need to know the answer to this equation.
R = 3 and d = 5

brainliest and 30 points for correct answer and first person ONLY

Answers

Answer:

=25

Step-by-step explanation:

plug in the numbers for the variables

5(3)+2(5)

15+10

25

Rockwell hardness of pins of a certain type is known to have a mean value of 50 and a standard deviation of 1.2.a. If the distribution is normal, what is the probability that the sample mean hardness for a random sample of 9 pins is at least 51?b. Without assuming population normality, what is the (approximate) probability that the sample mean hardness for a random sample of 40 pins is at least 51?

Answers

Answer:

a

 [tex]P(\= X \ge 51 ) =0.0062[/tex]

b

[tex]P(\= X \ge 51 ) = 0[/tex]

Step-by-step explanation:

From the question we are told that

The mean value is [tex]\mu = 50[/tex]

The standard deviation is  [tex]\sigma = 1.2[/tex]

Considering question a

The sample size is  n = 9

Generally the standard error of the mean is mathematically represented as

      [tex]\sigma_x = \frac{\sigma }{\sqrt{n} }[/tex]

=>   [tex]\sigma_x = \frac{ 1.2 }{\sqrt{9} }[/tex]

=>  [tex]\sigma_x = 0.4[/tex]

Generally the probability that the sample mean hardness for a random sample of 9 pins is at least 51 is mathematically represented as

      [tex]P(\= X \ge 51 ) = P( \frac{\= X - \mu }{\sigma_{x}} \ge \frac{51 - 50 }{0.4 } )[/tex]

[tex]\frac{\= X -\mu}{\sigma }  =  Z (The  \ standardized \  value\  of  \ \= X )[/tex]

     [tex]P(\= X \ge 51 ) = P( Z \ge 2.5 )[/tex]

=>   [tex]P(\= X \ge 51 ) =1- P( Z < 2.5 )[/tex]

From the z table  the area under the normal curve to the left corresponding to  2.5  is

    [tex]P( Z < 2.5 ) = 0.99379[/tex]

=> [tex]P(\= X \ge 51 ) =1-0.99379[/tex]

=> [tex]P(\= X \ge 51 ) =0.0062[/tex]

Considering question b

The sample size is  n = 40

   Generally the standard error of the mean is mathematically represented as

      [tex]\sigma_x = \frac{\sigma }{\sqrt{n} }[/tex]

=>   [tex]\sigma_x = \frac{ 1.2 }{\sqrt{40} }[/tex]

=>  [tex]\sigma_x = 0.1897[/tex]

Generally the (approximate) probability that the sample mean hardness for a random sample of 40 pins is at least 51 is mathematically represented as  

       [tex]P(\= X \ge 51 ) = P( \frac{\= X - \mu }{\sigma_x} \ge \frac{51 - 50 }{0.1897 } )[/tex]

=> [tex]P(\= X \ge 51 ) = P(Z \ge 5.2715 )[/tex]

=>  [tex]P(\= X \ge 51 ) = 1- P(Z < 5.2715 )[/tex]

From the z table  the area under the normal curve to the left corresponding to  5.2715 and

=>  [tex]P(Z < 5.2715 ) = 1[/tex]

So

   [tex]P(\= X \ge 51 ) = 1- 1[/tex]

=> [tex]P(\= X \ge 51 ) = 0[/tex]

Using the normal distribution and the central limit theorem, we have that there is a:

a) 0.0062 = 0.62% probability that the sample mean hardness for a random sample of 9 pins is at least 51.

b) 0% approximate probability that the sample mean hardness for a random sample of 40 pins is at least 51.

In a normal distribution with mean and standard deviation , the z-score of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

It measures how many standard deviations the measure is from the mean.  After finding the z-score, we look at the z-score table and find the p-value associated with this z-score, which is the percentile of X. By the Central Limit Theorem, the sampling distribution of sample means of size n has standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].

In this problem:

Mean of 50, hence [tex]\mu = 50[/tex]Standard deviation of 1.2, hence [tex]\sigma = 1.2[/tex]Sample of 9, hence [tex]n = 9, s = \frac{1.2}{\sqrt{9}} = 0.4[/tex].

Item a:

The probability is 1 subtracted by the p-value of Z when X = 51, hence:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

By the Central Limit Theorem

[tex]Z = \frac{X - \mu}{s}[/tex]

[tex]Z = \frac{51 - 50}{0.4}[/tex]

[tex]Z = 2.5[/tex]

[tex]Z = 2.5[/tex] has a p-value of 0.9938.

1 - 0.9938 = 0.0062

There is a 0.0062 = 0.62% probability that the sample mean hardness for a random sample of 9 pins is at least 51.

Item b:

Even though the distribution is not normal, the sample size is of [tex]n = 40 > 30[/tex], hence the Central Limit Theorem can be applied.

[tex]s = \frac{1.2}{\sqrt{40}} = 0.19[/tex]

[tex]Z = \frac{X - \mu}{s}[/tex]

[tex]Z = \frac{51 - 50}{0.19}[/tex]

[tex]Z = 5.26[/tex]

[tex]Z = 5.26[/tex] has a p-value of 1.

1 - 1 = 0

0% approximate probability that the sample mean hardness for a random sample of 40 pins is at least 51.

A similar problem is given at https://brainly.com/question/24663213

Can the following question be considered a statistical question and why or why not?

Do students at Bryan Middle School exercise?

Yes, it specifies the population
No, it does not specify the population
Yes, it anticipates enough variability in responses
No, it does not anticipate enough variability in responses

Answers

Yes, it specifies the population

Answer: Yes, it anticipates enough variability in responses

Step-by-step explanation:

A statistical question is a question that can be answered by collecting data that vary. For example, “How old am I?” is not a statistical question, but “How old are the students in my school?” is a statistical question.

Write sin(x+1) in terms of unshifted sine and cosine. Write your answer using decimals.
Please provide explanation, I’m confused.

Answers

Answer: sin(x + 1) = 0.841*cos(x) + 0.540*sin(x)

Step-by-step explanation:

Here we can use the relation:

Sin(a + b) = sin(a)*cos(b)  + sin(b)*cos(a)

In this case we have:

sin(x + 1)

This means that the graph of sin(x) is shifted one unit to the left.

But we can write this, using the above relation, as:

sin(x + 1) = sin(x)*cos(1) + sin(1)*cos(x)

Now we have no longer a shift, and we can replace:

sin(1) = 0.841

cos(1) = 0.540

Then:

sin(x + 1) = 0.841*cos(x) + 0.540*sin(x)

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