3 years ago

What is the sum of 8a 7+ 5b2 – 2a2 and 7b2 + 66_ 20a + 3?

Mathematics

1 answer:

barxatty [35]3 years ago

5 0

Answer:

Step-by-step explanation:

7+5b²-2a²+7b²+66-20a-3

first collect like terms

5b²+7b²-2a²-20a+7-3

12b²-2a²-20a+4

hope it's helpful

THANK YOU.

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Simplify the following: a) [ -6 +22 – 6 + 8 ] ÷ ( -9 ) b) 400 ÷ { 40 – (-2) -3 – ( -1)} c) 40 x -23 + 40 x -17 d) 1673 x 99 – (-

oee [108]

Step-by-step explanation:

[ -6 +22 – 6 + 8 ] = 18

18 ÷ (-9) = -2

{40 – (-2) -3 – ( -1)} = { 40 + 2 -3 + 1} = 40

400 ÷ 40 = 10

(40 x 23) + (40 x -17)

920 + (-680)

= 240

(1673 x 99) + 1673

1673 x 100

= 167300

Hope this helps ^-^

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3 years ago

Find an ordered pair (x,y) that is a solution to the equation.<br> x-3y=9<br> (x,y)= ?

Gemiola [76]

Answer:

(9,-3)

Step-by-step explanation:

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2 years ago

Solve the equation in the image

Margaret [11]

Answer: 55

Step-by-step explanation:

$\sqrt[3]{4x-4}=6$

Begin by cubing each side of the equation to get rid of the cubic root.

$(\sqrt[3]{4x-4})^3=(6)^3\\ 4x-4=216$

add 4

$4x-4+4=216+4\\4x=220$

Divide by 4

$\frac{4x}{4}=\frac{220}{4}$

$x=55$

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3 years ago

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schepotkina [342]

I believe the answers are:
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2. Two equal parts
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2 years ago

Read 2 more answers

What is m angle PQR?

WINSTONCH [101]

3x-5+x+1=180
4x-4=180
4x=176
X=44
Plug in 44 for X
3(44)-5
132-5
Answer
127

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3 years ago