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3 years ago

What is that height??

Mathematics

1 answer:

Artemon [7]3 years ago

4 0

Answer:

6 in

Step-by-step explanation:

To find the height, just divide the volume by the base area

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Solve for x using the distributive property. 9(5 - x) = 81 x = [?]

Ilya [14]

Answer:

$\boxed {x = -4}$

Step-by-step explanation:

Solve for the value of $x$ :

$9(5 - x) = 81$

-Use Distributive Property:

$9(5 - x) = 81$

$45 - 9x = 81$

-Subtract $45$ to both sides:

$45 - 45 - 9x = 81 - 45$

$-9x = 36$

-Divide both sides by:

$\frac{-9x}{-9} = \frac{36}{-9}$

$\boxed {x = -4}$

So, the value of $x$ is $-4$ .

8 0

4 years ago

Evaluate the expression 42 + 5/9y

zysi [14]

Combine
5
9
5
9
and
y
y
.
42
+
5
y
9

5 0

3 years ago

A country's population in 1992 was 72 million. In 1998 it was 76 million. Estimate the population in 2012 using the exponential

stepan [7]

We assume the annual percentage increase is the same. We will work out the constant k using the formula

We have
P = 76
A = 72
t = 6 years (from 1992 to 1998)

Substitute into the formula
$76=72e^{6k}$
$\frac{76}{72}=e^{8k}$
Take log both sides give
$ln( \frac{76}{72})=ln(e^{6k})$
$0.05406722127=6k$
$k=0.009$

We can now work out the number of population by the end of 2012 using the formula

We have
A = 72 million
k = 0.009
t = 10 years (1992 to 2012)

$P=72e^{0.009*10}$ $P=78.78$ ≈79 million

7 0

3 years ago

A whole pie is cut into 8 pieces and one slice is taken out, what's the fraction is left?

Mrrafil [7]

1 pie is cut into eighths or 1/8 a slice. 3 are taken out.

8/8-3/8=5/8 is left.

8 0

3 years ago

Read 2 more answers

A scientist is working with 19 meters of gold wire. How long is the wire in millimeters?

Elza [17]

Answer