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3 years ago

A and b find volume and the total surface

Mathematics

1 answer:

Stels [109]3 years ago

5 0

Answer:

Volume=a3 or a*a*a

Volume=24*36*18

Volume=15552inch^3

For surface are formula is

A = 2wl + 2lh + 2hw

You might be interested in

-55÷12 = 7÷4m + 8÷3m what is m

Lady_Fox [76]

Answer:

$m=-\frac{53}{55} \\m=-0.963$

Step-by-step explanation:

Rewrite Equation.

$7/4m+8/3m=-55/12$

Simplify.

$\frac{53}{12m} =-55/12$

Simplify.

$\frac{53}{12m} =-\frac{55}{12}$

Multiply the numerator of the first fraction by the denominator of the second fraction. Set this equal to the product of the denominator of the first fraction and the numerator of the second fraction.

$53*12=12m*-55$

Simplify & Answer:

$m=-\frac{53}{55}$

7 0

3 years ago

Which pair of functions are inverses of each other?

AlladinOne [14]

Answer:

The only pair of functions that are inverses of each other are the ones for option D.

Step-by-step explanation:

Two functions, f(x) and g(x), are inverses if and only if:

f( g(x) ) = x

g( f(x) ) = x

So we need to check that with all the given options.

$f(x) = \frac{x}{7} + 10 \\g(x) = 7*x - 10\\$

then:

$f(g(x)) = \frac{7*x + 10}{7} -10 = x + \frac{10}{7} - 10$

This is clearly different than x, so f(x) and g(x) are not inverses.

$f(x) = \sqrt[3]{11*x} \\g(x) = (\frac{x}{11} )^3$

Then:

$f(g(x)) = \sqrt[3]{11*(\frac{x}{11})^3 } = \sqrt[3]{\frac{x^3}{11^2} } = \frac{x}{11^{2/3}}$

This is different than x, so f(x) and g(x) are not inverses.

$f(x) = \frac{7}{x} -2 \\g(x) = \frac{x + 2}{7}$

Then:

$f(g(x)) = \frac{7}{\frac{x + 2}{7} } - 2 = \frac{7*7}{x + 2} - 2$

Obviously, this is different than x, so f(x) and g(x) are not inverses.

$f(x) = 9*x - 6\\g(x) = \frac{x + 6}{9}$

Then:

$f(g(x)) = 9*\frac{x + 6}{9} - 6 = x + 6 - 6 = x\\g(f(x)) = \frac{(9*x - 6) + 6}{9} = x$

In this case we can conclude that f(x) and g(x) are inverses of each other.

5 0

3 years ago

How to solve (8x-3)(5x+4)=0

agasfer [191]

Answer:

x= 3/8 = 0.375 , x= -4/5= -0.8

Step-by-step explanation:

8x-3=0

8x=3

8x/8 = 3/8

x= 3/8 converted to decimal will be =0.375

for 5x+4=0

5x= -4

5x/5 = -4/5

x= -4/5 = converted to decimal will be = -0.8

3 0

3 years ago

Read 2 more answers

The selling price of a refrigerator, is $ 468.60. If the markup is 10 % 10% of the dealer's cost, what is the dealer's cost

Anna71 [15]

$421.74
468.60×.10=46.86
468.40-46.86=$421.74

5 0

3 years ago

Complete the input-output table: x 3x + 7 0 4 8 14

salantis [7]

Step-by-step explanation:

When x = 0,

3x + 7

= 3 ( 0 ) + 7

= 0 + 7

= 7

When x = 4,

3x + 7

= 3 ( 4 ) + 7

= 12 + 7

= 19

When x = 8,

3x + 7

= 3 ( 8 ) + 7

= 24 + 7

= 31

When x = 14,

3x + 14

= 3 ( 14 ) + 14

= 14 ( 3 + 1 )

= 14 ( 4 )

= 56

3 0

3 years ago