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3 years ago

11

Please help me on this

2 answers:

Paul [167]3 years ago

8 0

Answer:

I believe all of them are correct

Step-by-step explanation:

The associative property of addition states that no matter how three values are grouped they will always equal the same thing when added. I personally would chose the first answer as that seems the most reasonable and similar to the original equation, but I'm pretty sure they're all the same because if you replace s with 1 it will always equal the same thing in each equation.

inna [77]3 years ago

6 0

Answer:

(S+8)+7

Step-by-step explanation:

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Write the equation of a line, in slope-intercept form, that has a slope of m=9 and passes through the point (4, 31) .

Zinaida [17]

Answer:

$\sf y=9x-5$

Step-by-step explanation:

$\begin{aligned}&\sf y-y_1=m(x-x_1) \\&\sf y-31=9(x-4) \\&\sf y-31=9x-36 \\&\sf y=9x-36+31 \\&\boxed{\sf y=9x-5} \end{aligned}$

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2 years ago

Read 2 more answers

Find the lenght of ab

DerKrebs [107]

Answer:

20.6 cm (im pretty sure lol)

Step-by-step explanation:

sine rule:

(ab = x)

13.5/sin41 = x/sin90

13.5sin90/sin41 = x

x = 20.57741667

ab = 20.6cm

7 0

3 years ago

Alex paints a total of 9 dollhouses using 2 cans of paint. How many dollhouses can Alex paint with each can of paint?

hichkok12 [17]

4 and a half houses per can of paint

3 0

3 years ago

3. The diagonal of a rectangular field is 169 m. Ifthe ratio of the length to the width is 12:5, find the: (a) (b) dimensions; p

Kazeer [188]

The dimensions of the rectangle are length 156 m and a width of 65m, and a perimeter P = 442m

<h3>How to find the dimensions of the rectangle?</h3>

For a rectangle of length L and width W, the diagonal is:

$D = \sqrt{L^2 + W^2}$

Here we know that the diagonal is 169m.

And the ratio of the length to the width is 12:5

This means that:

W = (5/12)*L

Replacing all that in the diagonal equation:

$169 = \sqrt{((5/12)^2*L^2 + L^2} \\\\169^2 = (25/144)*L^2 + L^2 = ( 25/144 + 1)*L^2\\\\\frac{169}{\sqrt{25/144 + 1} } = L = 156$

So the length is 156 meters, and the width is:

W = (5/12)*156 m = 65m

Finally, the perimeter is:

P = 2*(L + W) = 2*(156 m + 65m) = 442m

If you want to learn more about rectangles:

brainly.com/question/17297081

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8 0

2 years ago

7 less than the difference of 12 and 5

Novosadov [1.4K]

Answer:

the difference of 12 and 5 is 7 so it would be 0

6 0

2 years ago