3 years ago

HELLLPPP QUICK I’ll give brainliest

Mathematics

2 answers:

dexar [7]3 years ago

5 0

The second I believe

Lyrx [107]3 years ago

4 0

I think it's the first one because when you multiply negative and positive it's negative and because I did it without the negative sign and I got one whole but it is 4 or higher so it's about -1 or lower than that

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8^-3 x 8^-2 x 8^5 a. 8^30 b. 1 c. 80 d. 24

Mazyrski [523]

$8^{-3}\times8^{-2}\times8^5=8^{-3+(-2)+5}=8^{-5+5}=8^0=1$
b. 1

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3 years ago

1.______+ 0.14 +0.23 = 0.9 2.______-0.0369=0.1246

butalik [34]

Answer:

1) 0.53

2) 0.1615

Step-by-step explanation:

1) ______ + 0.37 = 0.9

______ = 0.9 - 0.37 = 0.53

2)______ - 0.0369 = 0.1246

______ = 0.1246 + 0.0369 = 0.1615

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3 years ago

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RUDIKE [14]

Answer:

-8(5b+2)-7(b-5)

first, use distributive property to get:

-40b-16-7b+35

then, use combine like terms to simplify:

-47b+19

that's your answer!

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3 years ago

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Each solid is composed of a rectangular prism and a regular prism. Find the surface area of the solid.

Amanda [17]

1345 is answer but not sure

4 0

3 years ago

In the equation 5x-2=-x-20, What is the value of x? a. 2 b. -1 c. -3 d. -2

mestny [16]

Answer:

C choice.

Step-by-step explanation:

$5x - 2 = - x - 20 \\$

First, we move the same terms to the same side.

$5x + x = - 20 + 2 \\ 6x = - 18$

Then we move 6 to divide - 18.

$x = \frac{ - 18}{6} \\ x = - 3$

7 0

3 years ago