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Elodia [21]
2 years ago
5

(8a+5B-3)+3(b-3) what is that

Mathematics
2 answers:
alisha [4.7K]2 years ago
8 0

(8a + 5b - 3) +3 (b-3)

8a + 5b - 3 + 3b - 9 : The first parenthesis can be taken out and the second pair of parenthesis will have distributive property done to it.

8a + 8b - 12 : Simplify.

<h2><em><u>8a + 8b - 12</u></em></h2>
frutty [35]2 years ago
7 0

Answer:

Im Not really sure but i think its

8a+8b-12.

Step-by-step explanation:

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Help plssssssssssssssssssss
Whitepunk [10]

Answer: -74

Step-by-step explanation:

First you have to solve - 2y - 9 = 7 to find what "y" equals so we can plug that into 9y - 2

1. Solve -2y - 9 =7:

-2y = 16

y = -8

2. Plug -8 into the expression 9y - 2:

9(-8) - 2

-72 -2

-74!

Im sorry if i didnt do this correctly :/

5 0
3 years ago
Can some explain how to do this?
zepelin [54]

Answer:

  • Exact Area = 210.25pi - 210
  • Approximate Area = 450.185

The units for the area are in square inches or in^2. The approximate value shown above is when using pi = 3.14

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

Explanation:

Use the pythagorean theorem to find the length of the hypotenuse

  • a = 20
  • b = 21
  • c = unknown

a^2 + b^2 = c^2

20^2 + 21^2 = c^2

400 + 441 = c^2

c^2 = 841

c = sqrt(841)

c = 29

The hypotenuse is 29 inches long. This is the diameter of the circle. Half of that is the radius at r = d/2 = 29/2 = 14.5 inches.

The area of the circle is...

A = pi*r^2

A = pi*(14.5)^2

A = pi*210.25

A = 210.25pi

Which is exact in terms of pi

We'll subtract off the triangular region as this isn't shaded in. The area of the triangle is base*height/2 = 20*21/2 = 420/2 = 210 square inches.

So the shaded region is therefore 210.25pi - 210 square inches

This approximates to 210.25*3.14 - 210 = 450.185 when using the approximation pi = 3.14; use more decimal digits of pi to get a more accurate value.

4 0
3 years ago
Peter added the following fractions<br><br>Is Peter correct?
nexus9112 [7]

Answer:i think it would most likely be c

Step-by-step explanation:

since you can only add denominators when they are the same number


8 0
3 years ago
Read 2 more answers
Santa and his elves had a workshop that allowed them to produce 22{,}912{,}546{,}99222,912,546,99222, comma, 912, comma, 546, co
zvonat [6]

Answer: 180 times

Step-by-step explanation:

Given the following :

Production capacity of old workshop :22,912,546,992 toys per year

Production capacity of new workshop:

4,134,232,638,937 toys

Approximately how many times as many toys can the new workshop produce each year compared to the old workshop?

Production capacity of new workshop / production capacity of old workshop

= 4,134,232,638,937 / 22,912,546,992

= 180.435

= 180 ( nearest whole number)

3 0
3 years ago
30 POINTS AND I WILL MARK BRAINLYEST
S_A_V [24]

Answer:

x intercept -7,0

y intercept 0,9

7 0
3 years ago
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