Can someone help please? Problem in picture

The given question requires the expansion of the expressions within the bracket to the stated power. This would give an answer that is equal to -64.

This expansion requires the substitution of the given values, a and b, into the expression in the bracket. Then expanding the determined answer to the stated power.

Here, subtract the value of b from that of a, then expand the answer to the power of 3.

Thus:

[tex](a - b)^{3}[/tex]

Given that; a = 3, and b = 7, then we have:

[tex](a - b)^{3}[/tex] = [tex](3 - 7)^{3}[/tex]

           = [tex](-4)^{3}[/tex]

           = -4 * -4 * -4

           = -64

Therefore with the given conditions in the question, we have:

       [tex](3 - 7)^{3}[/tex]  = -64

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Step-by-step explanation:

12a. y-y1=m(x-x1)

y-5=(2-5)/(1--3)(x--3)

y-5=-3/4(x+3)

4y-20=-3x-9

4y=-3x-9+20

4y=-3x+11

y=-¾x+11/4

12b.

Perpendicular lines have the product of their gradient equal to -1

For L1,the gradient is 3

For L2,we express in slope-intercept form

6y=1-2x

y=1/6-⅓x

The slope is -⅓

Now product of both slopes 3×-⅓=-1,thus the lines are perpendicular

Step-by-step explanation:

Let,

The number of boys be = x

So,

Number of the girls = 3 × x

= 3x

Therefore,

Ratio of number of girls to number of boys in school will be,

[tex] = \frac{number \: of \: girls \: in \: school}{number \: of \: boys \: in \: school} [/tex]

[tex] = \frac{3x}{x} [/tex]

[tex] = \frac{3}{1} [/tex]

= 3:1 (Ans)

Answer:

Each piece will be 8 inches

Step-by-step explanation:

We have to find the HCF / GCF of  80 and 64

80 = 2 * 2 * 2 * 2 * 5

64 = 2 * 2 * 2 * 2 * 2 * 2

HCF = 2 *2 *2 = 8

80 inches = 8 * 10 . So, 10 boards each measuring 8 inches

64 = 8 * 8 . So, 8 boards each measuring 8 inches

Answer:

6p=13+5

6p=18

p=18/6

p=3

Answer:

( 2 − 3 ) ( − 1 )

Step-by-step explanation:

Answer

n=5

Step-by-step explanation:

n is equal to five

Answer:

A

Step-by-step explanation:

The scale factor is the ratio of corresponding sides, image to original

scale factor = [tex]\frac{Q'R'}{QR}[/tex] = [tex]\frac{6}{2}[/tex] = 3 → A

Answer: 6+x−2/x

Step-by-step explanation:

3x/x+3+x−2/x

3+3+x−2/x

6+x−2/x

================

Or, if you love crazy fractions:

3x/x+3+x−2/x

3x/x−2/x+3+x

(1/x)(3x−2)+3+x

Answer:

3/5x - 8

Step-by-step explanation:

4/5x + (-2) + (-6) - 1/5x

4/5x - 1/5x = 3/5x

(-2) + (-6) = -8

3/5x - 8 is the answer

thats what i got

Answer:

Answers in Explanation

Step-by-step explanation:

First Question:

[tex]\sqrt{100}[/tex] + [18 ÷ 3 x 4 - 15] - (60 - 7^2 - 1)

[tex]\sqrt{100}[/tex] + [24 - 15]  - (60 - 49 - 1)

[tex]\sqrt{100}[/tex] + 9 - 10

10 + 9 - 10

Answer = 9

Second Question:

5x + 2x = 7x

5x^2 + 3x^2 = 8x^2

2x + 3x - x = 4x

2x + 3y + x + y = 3x + 4y

9x - 6x = 3x

-7y + 3x + 4x + 3y = 7x - 4y

-7x^2 + 2x^2 + 9x^2 = 8x^2

(3x^2 + 5x + 4) - (-1 + x^2) = 2x^2 + 5x + 5

(3 + 2x - x^2) + (x^2 + 8x + 5) = 10x + 8

(3x - 4) - (5x + 2) = -2x - 6

(2x^2 + 5x + 3) - (x^2 - 2x + 3) = x^2 + 7x

(3x^2 + 2x - 5) - (2x^2 - x - 4) = x^2 + 3x - 1

Third Question:

17x + 2y

(5x + 12y) + (3x + y) = 8x + 13y

17x - 8x = 9x

2y - 13y = -11y

Answer: 9x - 11y

Answer:

the espression are equivalent

Step-by-step explanation:

4x - 2x + 4 = 2 (x + 2)

2x + 4 = 2x + 4

the espression are equivalent

Answer:

28roses 70carnations

Step-by-step explanation:

4+6+8+10=28

10+15+20+25=70

Maybe i think

Answer:

He could drive 52.006 miles

Step-by-step explanation:

Answer:

35 5/27

Step-by-step explanation:

You just have to set up an equation:

0.9/95 = 1/x

And if you cross-multiply, you get:

0.9x=95

Which means x is 95/0.9 which is 105 5/9. So, if all three t-shirts costed 105 5/9, and they all costed the same, then one t-shirt costs 35 5/27.

Answer:

C. An enzyme that links complementary base pairs to the parent strand.

Step-by-step explanation:

The primary enzyme involved in this is DNA polymerase which joins nucleotides to synthesize the new complementary strand. DNA polymerase also proofreads each new DNA strand to make sure that there are no errors.

if you like my answer, please mark me brainliest !! thanks !! <3

Answer: 1:9

Step-by-step explanation:

If you multiply 2 legs times 8 chickens we get 16

If you multiply 4 legs times 14 sheep we get 56

The number of legs is 16+56=72

So you have 8 beaks and 72 legs or 8:72

Divide both sides by 8 to simplify and you get 1:9 as the answer

Answer:

0

Step-by-step explanation:

f(x)=2x²

s(x)=2(x-3)

Plugging in the numbers, we get:

f(2)= 2 * (2)²

f(2)= 2*4

f(2)= 8

s(-1)= 2*(-1-3)

s(-1)= 2*(-4)

s(-1)= -8

f(2) + s(-1) = 8 - 8 = 0

Answer:

[tex]18 {m}^{2} [/tex]

Step-by-step explanation:

[tex]area \: = 6m \times 4m \\ = 24 {m}^{2} \\ \\ grass \: area = 3m \times 2m \\ = 6 {m}^{2} \\ \\ cement \: area \: = 24 {m}^{2} - 6 {m}^{2} \\ = 18 {m}^{2} [/tex]

Answer:

18 m^2

Step by step explanation:

In these types of math problems, we have two ways to solve.

1) Directly find the area of the shaded area.

2)Find the unshaded area and then minus that from the total area.

In this case, I will use the second way.

The grass area (unshaded) is 3 x 2 = 6 m^2 ( 6 square meters )

The total area (grass + cement) is 4 x 6 = 24 m^2 ( 24 square meters )

Now, we want the area of the cement part but the grass's area is also in the total.

So, we minus 6m^2 from 24m^2.

Then we get 18m^2.

And that is the answer.

I hope it helps.

(Note : because this problem is easy, you can use both ways but most use the second way. There may also be problems where we can use only the first or second way.)

Answer: 3

Step-by-step explanation: if you look where the line exactly touches the graph divide the left number to the bottom number let me know if its right

Answer:

3 recipes/week

Step-by-step explanation:

Pick any two points where the line passes to a point in the grid, so you don't go crazy with counts. That means (0.0) (1;3) (2;6) (3;9) Pick two of them, in order. Let's say we like (0.0) and (1.3) since we're lazy. Now let's subtract the second part of each pair, (in our case, 0-3), do it for the first pair (in our case 0-1) and divide the two results: [tex]{-3 \over -1} = 3[/tex] Feel free to pick any other two and double check, being careful you're always doing [tex]\Delta y \over \Delta x[/tex]

Answer:

-4 9/10, -4 3/4, -4.2

Step-by-step explanation:

A. -4.9

B. -4.75

C. -4.2

ANSWER:

-4 9

10

-4 3

10

-4.2

Step-by-step explanation:

HOPE IT HELPSSSS

just times the orginal price by 175%

Answer:

10 or 25

Step-by-step explanation:

25 is a factor of 50

Answer:

x= 1 and y =1

Step-by-step explanation:

4+4 is 8, therefore for this to be true both must be 1

Answer:

x = 1; y = 1

Step-by-step explanation:

We know x and y have to equal the same thing because 4 + 4 = 8

x = 4 / 4

y = 4 / 4

x = 1

y = 1

Therefore, x = 1; y = 1

Answer:

∠ 1 and ∠2

Step-by-step explanation:

Adjacent angles share a common ray or side between them, and have the same vertex.  

Therefore, the adjacent angles from the given image are: ∠ 1 and ∠2.

The other given options are not adjacent angles because they do not have the same common vertex and ray.  

Answer:

B is going to be our answer

Step-by-step explanation:

We said that we want each row to contain 40 beets

We divided and got 195 rows, with a remainder of 15.

This makes statement B true.

Answer:

0.01085 ~ 1.085%

Step-by-step explanation:

Okay so a simple way to do these probability ones is to add an extra space around each side

                      YES          NO

POSITIVE       325           2        _____

NEGATIVE       16          1131      _____

                     _____    _____   _____

Now in these spaces add all the the rows and columns accordingly

                      YES          NO

POSITIVE       325           2        _327_

NEGATIVE       16          1131      _1147_

                     _341_     _1133_   _1474_

Now the number in the place where the additional rows meet is your total number of patients, so this is what you would use for your probability.

So we are looking for YES / NEGATIVE which is 16

Now do 16 divided by 1474 and your probability comes out to 0.01085..., so as a percentage, would be 1.085%

Hope that helped :)

Answer:

3 GB over: $80 x GB over: $35+$15x

Step-by-step explanation:

First, 3 GB over is 3 times 15 plus 35, which equals 80. x GB over is x times 15 plus 35, hence the answer. Hope this helps!

Answer:

196.88

Step-by-step explanation:

looked up

Answer:

c

Step-by-step explanation:

by Pythagorean theorem

The correct statement to find the measure of EC is: Create a proportion with the legs of the triangles where segment BC is the same measure as segment AB. Add the length of segments BC and BE to find the length of segment EC.

Since BE is parallel to AD, triangles ADC and BEC are similar by the Alternate Interior Angles Theorem. Therefore, the ratio of corresponding sides of these triangles is equal:

AD / BC = DC / EC

Since AD = 4√138 m and BC = AB = 6√3 m, we have:

4√138 / 6√3 = DC / EC

Simplifying:

2√3 / 3 = DC / EC

Now, we know DC = BE = √138 m. Let's substitute that value:

2√3 / 3 = √138 / EC

Now, solve for EC:

EC = (√138 * 3) / (2√3)

EC = 3/2 * √(138/3)

EC = 3/2 * √46

Thus, the measure of EC is 3/2 * √46 m. The correct statement provided earlier explains the process to find this value.

To know more about proportion, refer here:

https://brainly.com/question/15073068

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