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3 years ago

(8b2+6b-1) (8b2-8b+7)

1 answer:

6 0

=(8b2+6b+−1)(8b2+−8b+7)
=(8b2)(8b2)+(8b2)(−8b)+(8b2)(7)+(6b)(8b2)+(6b)(−8b)+(6b)(7)+(−1)(8b2)+(−1)(−8b)+(−1)(7)
=64b4−64b3+56b2+48b3−48b2+42b−8b2+8b−7
Answer:
=64b4−16b3+50b−7

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What is root 3 × 2 root 3

Nezavi [6.7K]

Answer:

Step-by-step explanation:

The principal, real, root of:

$\sqrt[2]{3}$

=1.73205081

All roots:

1.73205081

−1.73205081

3 is not a perfect square

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3 years ago

4x+5y=-5 and what is it graphed

viva [34]

Answer:

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Step-by-step explanation:

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3 years ago

If f(x)=3x-2 and g(x)=2x+1 find(f-g)(x)

Solnce55 [7]

Answer:

(f-g)(x) = x-3

Step-by-step explanation:

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g(x)=2x+1

(f-g)(x)= 3x-2 - ( 2x+1)

Distribute the minus sign

3x -2 -2x -1

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3 years ago

At an assembly 7 out of the first 10 students who entered the gym were carrying a backpack. Based on this information, if 700 st

hram777 [196]

7 out of 10 were carrying a backpack...and 3 out of 10 were not
that means 7/10 of the total students had backpacks and 3/10 of the total students did not

7/10 * 700 = 4900/10 = 490 had backpacks <==
3/10 * 700 = 2100/10 = 210 did not

4 0

3 years ago

Read 2 more answers

A right triangle has legs measuring 4.5 meters and 1.5 meters.

sasho [114]

Well,

If the length of the legs of the second triangle are proportional to the lengths of the legs of the first triangle, we could simply multiply both of the dimensions by whole numbers and get an infinite number of proportional lengths.

Example:
4.5 * 2 = 9
1.5 * 2 = 3

A triangle with legs measuring 9 meters and 3 meters will be proportional to the first triangle with leg lengths of 4.5 and 1.5 meters, respectively.

More proportional lengths:
4.5 * 3 = 13.5
1.5 * 3 = 4.5

4.5 * 4 = 18
1.5 * 4 = 6

5 0

3 years ago