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Novay_Z [31]
3 years ago
8

Sup community simplify this in 5 mins −5·(−a)·(−a)·(−4)·a thx 4 help!!!!1111!!!1!111

Mathematics
2 answers:
alukav5142 [94]3 years ago
8 0

20a^3

Step-by-step explanation:

−5·(−a)·(−a)·(−4)·a

We have 4 minuses then the sign should be plus

5(a)(a)(4)a

=5 x 4 x a x a x a

=20. a^3

Hope this helps..

Good Luck

liraira [26]3 years ago
6 0

Answer:

20a³

Step-by-step explanation:

Simply multiply:

-5(-4) = 20

-a(-a)(a) = a²(a) = a³

20a³

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What is the surface area of the composite figure
leva [86]

Answer:

The answer is 672.

Step-by-step explanation:

To solve this problem, first let's find the surface area of the rectangular prism. To do that, multiply each dimension with each (times 2 | just in case you don't understand [what I'm talking about is down below]).

8 x 8 x 2 = 128

8 x 11 x 2 = 176

8 x 11 x 2 = 176

Then, add of the products together to find the surface area of the rectangular prism.

176 + 176 + 128 = 480

Now, let's find the surface area of the square pyramid. Now, for this particular pyramid, let's deal with the triangles first, then the square. Like we did with the rectangular prism above, multiply each dimension with each other (but dividing the product by 2 | in case you don't understand [what i'm talking about is down below]).

8 x 8 = 64.

64 ÷ 2 = 32.

SInce there are 4 triangles, multiply the quotient by 4 to find the surface area of the total number of triangles (what i'm talking about is down below).

32 x 4 = 128.

Now, let's tackle the square. All you have to do is find the area of the square.

8 x 8 = 64.

To find the surface area of the total square pyramid, add both surface areas.

128 + 64 = 192.

Finally, add both surface areas of the two 3-D shapes to find the surface area of the composite figure.

192 + 480 = 672.

Therefore, 672 is the answer.

6 0
3 years ago
Pls help me this i due today
finlep [7]

Step-by-step explanation:

due to the rules of crossing lines and their angles, the 2 angles opposite of each other must be equal.

so,

7x + 7 = 112

7x = 105

x = 15

8 0
2 years ago
Which equivalent fractions can you use to find the difference of 5 and 3/13 and 1 and 4/9 ?
lbvjy [14]
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1 4/9 = 13/9
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John into friends are going out for pizza for lunch they split one pizza in three large pizza cost $12 he spent a total of 16.95
grin007 [14]

The large drink is 4$

7 0
3 years ago
Read 2 more answers
5(x+7)+2 = 4(x - 1) + 1
Nadya [2.5K]

Answer:

x = -40

Step-by-step explanation:

First we distribute

5x + 35 + 2 = 4x - 4 + 1

Collect like terms

5x + 37 = 4x - 3

Subtract 37 from both sides

5x = 4x - 40

Subtract 4x from both sides

1x = -40 OR x = -40

6 0
3 years ago
Read 2 more answers
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