3 years ago

Use the Distributive Property to expand this expression: a(–3.5 – 6.8b)

Mathematics

1 answer:

astra-53 [7]3 years ago

6 0

Answer:

-3.5a-6.8ba

Step-by-step explanation:

You distribute the number or variable on the outside on each number or variable on the outside

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If segment RS has M(8,-2) and coordinates R(10,5) then what are the coordinates of point S?

Brums [2.3K]

If M is the midpoint of segment RS, then

M = (R + S)/2

2M = R + S . . . . . multiply by 2

S = 2M - R = 2(8, -2) -(10, 5) = (6, -9) . . . . put in the given values

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3 years ago

What is the surface area,in square centimeters,of the square pyramid

11111nata11111 [884]

Answer:

56 sq cm

Step-by-step explanation:

SA = Area of Base + 1/2·(Perimeter of Base)·(Slant height)

= 4² + 1/2(4x4)(5)

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3 years ago

Find the surface area and volume of the following figures.

Oduvanchick [21]

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White surface area = appro. 301

Yellow area = 320 $\pi$

Yellow Surface area = approx. 653

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Surface Area found with = 2πrh+2πr2

You need to memorize them for tests

Hope that helped!!! k

4 0

4 years ago

Read 2 more answers

Evaluate 343^4/3<br> 1. 7<br> 2. 49<br> 3. 2401<br> 4. Not a real number

konstantin123 [22]

2401 is the answer its the correct

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4 years ago

Suppose an isosceles triangle has two sides of length 42 and 35, and that the angle between these two sides is 120 degree. what

Citrus2011 [14]

Suppose that a=42, b=35, c is unknown, and C = 120°

$c^2 = a^2 + b^2 -2ab(cosC)$

$c^2 = 42^2 + 35^2 -(2*42*35*cos120)

(cos120=-0.5)

c^2 = 1764 + 1225 -(2940*cos120)

c^2 = 2989 -(2940*-0.5)

c^2 = 2989+1470

c^2=4459

c= \sqrt{c^2} 

c=\sqrt{4459}$

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4 years ago