Mathematics High School

Help I don’t get this one question

Answers

Answer 1

the answer would be A. -18x^7

hope this helps:)

Answer 2

Answer:

[tex]-6x^2\left(3x^5\right)=-18x^7[/tex]

Hence, option (A) is true.

Step-by-step explanation:

Given the expression

[tex]-6x^2\left(3x^5\right)[/tex]

[tex]\mathrm{Apply\:exponent\:rule}:\quad \:a^b\cdot \:a^c=a^{b+c}[/tex]

i.e. [tex]x^2x^5=\:x^{2+5} \\[/tex]

so the expression becomes

[tex]-6x^2\left(3x^5\right)=-6\cdot \:\:3x^{2+5}[/tex]

[tex]\mathrm{Add\:the\:numbers:}\:2+5=7[/tex]

[tex]=-6\cdot \:3x^7[/tex]

[tex]\mathrm{Multiply\:the\:numbers:}\:6\cdot \:3=18[/tex]

[tex]=-18x^7[/tex]

Therefore,

[tex]-6x^2\left(3x^5\right)=-18x^7[/tex]

Hence, option (A) is true.

Related Questions

2. The measure of an angle is 114°. What is the measure of
its supplement?

Answers

Answer:

Step-by-step explanation:

Answer:

[tex]\huge\boxed{\sf 66\°}[/tex]

Step-by-step explanation:

Supplementary angles add up to 180°.

So,

The measure of the angle of supplement of 114° is:

=> 180° - 114° = 66°

[tex]\rule[225]{225}{2}[/tex]

Hope this helped!

~AnonymousHelper1807

An above ground pool with 17,100 gallons of water was draining. If the pool drained at a rate of 1,800 gallons per hour, how many hours has it
been draining if there was 6,300 gallons left?

Answers

Answer:

6 Hours

Step-by-step explanation:

17,100 - 6,300= 10,800

10,800/1,800 = 6

What is the image point of (6,-4)(6,−4) after a translation left 4 units and down 5 units?

Answers

Answer:

(2,-9)

Step-by-step explanation:

6-4 = 2

-4-5 =9

so The answer is (2,-9)

Jamie deposits $627 into a savings account. The account has an interest rate of 3.5%, compounded quarterly

Answers

Answer:

is this all the question? Im sorry I don't see the rest

Step-by-step explanation:

Which expression is a factor of 21 x2 + 13 x-20

Answers

Answer:

(7x−5)(3x+4)

Step-by-step explanation:

I think this is the answer

Answer:

(7x−5)(3x+4)

Step-by-step explanation:

Step-1 : Multiply the coefficient of the first term by the constant -21 • 20 = -420

Step-2 : Find two factors of -420 whose sum equals the coefficient of the middle term, which is 13 .

-420 + 1 = -419

-210 + 2 = -208

-140 + 3 = -137

-105 + 4 = -101

-84 + 5 = -79

-70 + 6 = -64

-60 + 7 = -53

-42 + 10 = -32

-35 + 12 = -23

-30 + 14 = -16

-28 + 15 = -13

-21 + 20 = -1

-20 + 21 = 1

-15 + 28 = 13 That's it

Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above, -15 and 28

-21x2 - 15x + 28x + 20

Step-4 : Add up the first 2 terms, pulling out like factors :

-3x • (7x+5)

Add up the last 2 terms, pulling out common factors :

4 • (7x+5)

Step-5 : Add up the four terms of step 4 :

(-3x+4) • (7x+5)

Francis records the price of a washer-and-dryer pair each week for 5 weeks. The table shows his data.
1
3
4
5
Week
Price $740.79 752 49 $675.49 $580.99 $694.99
What is the rate of change in the price of the washer-and-dryer pair between Week 1 and Week 57
$11.45
week
59. 16/week
0 59. 16/week
$11.45
week

Answers

Answer:

The answer is A. -11.45

Step-by-step explanation:

By using expression for the rate of change in prices between week 1 and week 5 will be -$11.45.

Rate of change is given by the expression,

Rate of change = [tex]\frac{\triangle y}{\triangle x}[/tex]

= [tex]\frac{\text{Change in price}}{\text{Change in weeks}}[/tex]

By using the given expression, rate of change of prices between week 1 and week 5 will be,

Rate of change = [tex]\frac{694.99-740.79}{5-1}[/tex]

= [tex]-\frac{45.8}{4}[/tex]

= [tex]-11.45[/tex]

Therefore, rate of change in the price of washer and dryer pair between week 1 and week 5 will be -$11.45 per week.

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Brenda’s brother earns $12 per hour at a store. The store offers him a 5% raise per hour. After the raise, how much will Brenda’s brother earn?

Answers

12 * 0.05 = 0.6
12 + 0.6 = $12.60
He will earn $12.60 per hour

Answer:

12 * 0.05 = 0.6

He will make $12.06 per hour

answer quickly !!! Pls

Answers

Answer:

(6 × 5) + (6 × 3) = 6 × (5 + 3)

Step-by-step explanation:

Since both 5 and 3 are being multiplied by 6, the total would be 6 multiplied by the sum of 5 and 3.

Which graph represents a proportional relationship

Answers

Answer:

First One.

The first one is going up and the second one is going down. (Really don't know how to explain this I just looked at it and saw...)

Assuming no denominator equals zero, which expression is equivalent to the given expression?
r-5/9r/5-r/3r^2
A.
-3/r
B.
r/3
C.
-r/3
D.
r-5/5-3r

Answers

Answer: C. -r/3

Step-by-step explanation: I got a 100% with that as my answer. I hope it helps.

i need this ASAP!!!!
Simplify. (23)2
Enter your answer, in simplest form, in the boxes.
$$

Answers

Answer:

23/2 is already in the simplest form. It can be written as 11.5 in decimal form

Step-by-step explanation:

23 2 = 22 2 + 1 2 = 11 + 1 2 = 11 1 2

This fraction cannot be simplified any further because there is no common divisor for 1 and 2 other than 1

The simplified expression of (23)2 is 46

How to simplify the expression

From the question, we have the following parameters that can be used in our computation:

(23)2

Express as products

So, we have

(23)2 = (23) * 2

Evaluate the products of 23 and 2

(23)2 = 46

Hence, the solution is 46

Answers

Answer: (-1,1)(1,1)(-2,-1)(2,-1)

Step-by-step explanation:

thanks guys i only got one question wrong

Answers

Answer:

Let me help you next time! congrats tho

Answer:

on what field of math?

Step-by-step explanation:

Congrats! Was it a big assignment?

Question 1
1. You must build a ramp with a rise of 15 inches to roll
some lab equipment into your school. If you follow the
ADA specifications, what is the horizontal length (the "run")
of the shortest ramp you can build? What is the ramp's
total length?

Answers

Could you explain better so I could understand

A garden table and a bench cost $804 combined. The garden table costs $54 more than the bench. What is the cost of the bench?

Answers

Answer:

its 750

Step-by-step explanation:

because its 804 combined and 804-54=750 and 750+54=804

750 I agree with the other person

Bob and Nina make dog leashes. Bob can make 7 leashes in 2 hours and Nina can make 4 leashes in 1 hour.

Enter an equation that can be used to find the number of hours, t, it takes Bob and Nina to make 60 leashes together. Enter your response in the first response box.

Enter the number of hours, t, it takes Bob and Nina to make 60 leashes together. Enter your response in the second response box.

Answers

Answer:

8 hours

Step-by-step explanation:

!:!

58°
(4x+10)°
Find the value of the variable in the isosceles trapezoid.

Answers

X=73 would be your answer

Mikayla withdraws $20 on 4 different days during a week. Find the total change in her account balance after the withdrawals.
The total change in her account balance after the withdrawals is

Answers

Answer:

$80

Step-by-step explanation:

20 on 4 days. 20*4 or 80.

Hope this helps plz hit the crown :D

BRAINLIEST IF YOU HELP
Evaluate this expression: (6.4 × 10^3) ÷ (3.2 × 10^2)
Express your answer in scientific notation.
A. 2 × 10^1
B. 2 × 10^2
C. 2 × 10^5
D. 2 × 10^6

Answers

A. i put my work in the photo in case you need it

cqn someone help me Graph y = -3.2 + 7.

Answers

Answer: math is 10.2

Triangle CAT is an isosceles triangle with base angles C and T each represent by (3x + 11) degrees, while angle A is represented by (9x + 8) degrees. Find the measure of angle C.

Answers

Answer:

Angle C = 41°

Step-by-step explanation:

Given:

Angle C = (3x + 11) degree

Angle T = (3x + 11) degree

Angle A = (9x + 8) degree

Find:

Angle C

Computation:

Using angle sum property

(3x + 11) + (3x + 11) + (9x + 8) = 180

15x + 30 = 180

x = 10

So,

Angle C = (3x + 11) degree

Angle C = 3(10) + 11

Angle C = 41°

PLS HELP ASAP THIS IS EASY

Look at the trapezoid shown below. Which transformation carries the trapezoid onto itself ?

A) a reflection across the line y = 0

B) a rotation of 180 ° about the point (- 1, 0)

C) a rotation of 180 ° about the origin

D) a reflection across the line x = - 1

Answers

Answer: D

Step-by-step explanation: a reflection across the line x=-1

A company has recently been hiring new employees. Today the company has 33% more employees than it did a year ago. If there are currently
53,200 employees, how many employees did the company have a year ago?

Answers

Answer:

Sorry , I might be wrong : 35664

Step-by-step explanation:

So, first, we can find 33% of 53,200

That is 17,556

Then, we can subtract 17556 from 53,200

We get 35664

The image below shows two dilated figures with lines AB and A'B' drawn. If the larger figure was dilated using a scale factor of 3, what relationship do lines AB and A'B' have? (10 points)

Answers

Answer:

They have the same side lengths/angles except one is smaller than the other

Step-by-step explanation:

the smaller one is a "mini" of the larger one. a exact copy

The dilation is solved and the scale factor of line is A'B' = 3AB

What is Dilation?

Resizing an item uses a transition called Dilation. Dilation is used to enlarge or contract the items. The result of this transformation is an image with the same shape as the original. However, there is a variation in the shape's size. Dilation transformations ensure that the shape will stay the same and that corresponding angles will be congruent

The result of dilation is that the shapes and boundaries of objects in the input image are expanded or thickened. It is often used in conjunction with other morphological operations such as erosion, opening, and closing to manipulate and enhance images.

Given data ,

Let the scale factor of the dilation be represented as k

Now , the scale factor k = 3

So , the ratio of the corresponding sides is given by

A'B' / AB = 3

Multiply by AB on both sides , we get

A'B' = 3AB

Hence , the dilation is simplified as A'B' = 3AB

To learn more about dilation click :

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An arborist examined trees in an orchard to see if they were infected with a virus. 21 out of 28 trees were infected with the virus. What percentage of the trees were infected?

Answers

Answer:

75%

Step-by-step explanation:

21/28 is the same as 75%

An unusually wet spring has caused the size of a mosquito population in some city to increase by 8% each day. If an estimated 180,000 mosquitoes are in the city on May , find how many mosquitoes will inhabit the city on May . Use y= 180,000 where x is number of days since May .

Answers

Answer:

The number of mosquitoes that will inhabit the city on May 25 is 4,471,200.

Step-by-step explanation:

Note: This question is not complete as some important figures and points are omitted. The complete question is therefore provided before answering the question as follows:

An unusually wet spring has caused the size of a mosquito population in some city to increase by 8% each day. If an estimated 180,000 mosquitoes are in the city on May 12, find how many mosquitoes will inhabit the city on May 25. Use y= 180,000(1.08)x where x is number of days since May 2.

The explanation to the answer is now given as follows:

Given;

y = 180,000(1.08)x = 180,000 * 1.08 * x .................... (1)

Where;

y = Number of mosquitoes that will inhabit the city on May 25 = ?

x = Number of days since May 2 = 25 - 2 = 23

Substituting for x = 23 into equation (1), we have:

y = 180,000 * 1.08 * 23

y = 4,471,200

Therefore, the number of mosquitoes that will inhabit the city on May 25 is 4,471,200.

Is the relationship a function yes or no?

Answers

Answer:

no because 3x nothing equals 14 and 4x nothing equals 18

hope this helps plz mark brainliest

Step-by-step explanation:

helpppppp for brainliest

Answers

Answer:

508 sheets /4 shelters = 127 sheets per shelter.

how many solutions does the following system have?
7x+5y=4; -21x-15y=-12

a)infinitely many solutions
b)one solution
c)two solutions
d)no solutions

Answers

Answer:

Step-by-step explanation:

we can observe that the second equation is the product of the first equation and -3

there will be infinitely many solutions

Hahahahaha umm I need help thankKss

Answers

Answer:

Step-by-step explanation:

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