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3 years ago

How tall is the silo

Mathematics

1 answer:

Schach [20]3 years ago

8 0

Answer:

20 ft tall

Step-by-step explanation:

looked it up on google

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If the sin 30 = 1/2, then which statement is true?

egoroff_w [7]

Answer:

cos 60° = 1/2 because the angles are complements.

Step-by-step explanation:

3 0

3 years ago

2x2-3 evaluate each expression. Show your work

nirvana33 [79]

Answer:

Step-by-step explanation:

2x2 = 4

4-3=1

5 0

3 years ago

Find the inverse of f(x)=(x−5)/(−4x−2)

uysha [10]

Answer:

${f}^{ - 1} (x)= \frac{ 5 - 2x }{ 4x + 1}$

Step-by-step explanation:

The given rational function is

$f(x) = \frac{x - 5}{ - 4x - 2}$

Let

$y = \frac{x - 5}{ - 4x - 2}$

Interchange x and y

$x= \frac{y- 5}{ - 4y - 2}$

Cross multiply

$x( - 4y - 2)= y- 5$

Expand

$- 4xy - 2x= y- 5 \\ - 4xy - y= 2x - 5 \\y( - 4x - 1)= 2x - 5$

Solve for y;

$y= \frac{ 2x - 5}{ - 4x - 1}$

$y= \frac{ 5 - 2x }{ 4x + 1}$

Therefore

${f}^{ - 1} (x)= \frac{ 5 - 2x }{ 4x + 1}$

7 0

3 years ago

HELP!!! ANSWER QUICKLY PLS!!! <br><br> (dont worry about the purple dot)

OverLord2011 [107]

The answer is b cause none of x is the same number

8 0

3 years ago

The table represents an exponential function.

Stels [109]

The exponential function is given in the form

$y= a (b)^{x}$

where a is the initial value and b is the multiplicative rate of change

So lets plug the first two values of the table in this function , we get

$2= a(b)^1$

$2= ab............................(eqn 1)$

Now plug second

$2/5 = a(b)^2 .............................( eqn2)$

Divide equation 2 by equation 1

$\frac{2=ab}{\frac{2}{5}=ab^2}$

On simplifying we get

$5= \frac{1}{b}$

$b=\frac{1}{5}$

So the multiplicative rate of change of the function is

$a) \frac{1}{5}$

8 0

3 years ago

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