3 years ago

What is the value of 3x3x3 +7(2x-6), when x=4

Mathematics

1 answer:

DIA [1.3K]3 years ago

3 0

Answer:

First can you use a * for the multiplication sign??

Step-by-step explanation:

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Choose all that correctly solve for x.

Tamiku [17]

Answer:

Options: A, B, and C correctly solve for x.

Step-by-step explanation:

A).

$\frac{5}{2} x$ = $\frac{15}{2}$

Multiplying both sides by 2 gives;

5x = 15

x = 15 ÷ 5 = 3

∴ This option correctly solve for x.

B).

x + $\frac{7}{2}$ = 7

x = 7 - $\frac{7}{2}$ = $\frac{14}{2} -\frac{7}{2} = \frac{7}{2}$

∴ This option correctly solve for x.

C).

x + 3 = $\frac{21}{5}$

x = $\frac{21}{5} - \frac{15}{5} = \frac{6}{5}$

But the option give x as 5/6 hence this option does not correctly solve for x.

D).

5x = 11/2

x = 11/2 ÷ 5 = 11/2 × 1/5 = 11/10

But the option gives x as 10/11 so it does not correctly solve for x.

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3 years ago

The conference table top shown is the shape of two congruent trapezoids. The table top is wooden with a rectangular glass inset.

Papessa [141]

I think it’s 196? base 1 +base 2=28 radius is 7 but we need the whole thing so 7x2=14.
then multiply and then divide by 2 28X14= 392 divided by 2 = 196

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3 years ago

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Black_prince [1.1K]

NCn is always equal to 1.

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The answer is 1/8 because he shaded obe out of eight parts

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Fed [463]

Answer:

a 5/2; b. 2.5; c 0.9; d. 90%

Step-by-step explanation:

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