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Tema [17]
3 years ago
12

Can you walk me through on how to do this

Mathematics
1 answer:
denpristay [2]3 years ago
3 0

Answer:

h=v/πr²

Step-by-step explanation:

v=πr²h

v/π=r²h

v/πr²=h

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Find x round. your answer to the nearest tenth of a degree
Juli2301 [7.4K]

Answer:

x = 55.6

Step-by-step explanation:

Recall the 3 main trig functions

Sin = opposite / hypotenuse

Cos = adjacent / hypotenuse

Tan = opposite / adjacent

Note that hypotenuse = longest side length

We want to find angle "x".

We are given its opposite side length ( 19 ) as well as the adjacent side length

When dealing with the opposite and adjacent we use tan

Tan = Opp / Adj

Opp = 19 and Adj = 13

Tan(x) = 19/13

* take the inverse tan of both sides *

x = 55.6

7 0
3 years ago
Solve the equation. -2x + 7x + 34 = -2 ( 1 - 7 \x )
Pani-rosa [81]

Answer:

-2x + 7x + 34 = -2 ( 1 - 7 x ) x=4

7 0
3 years ago
Find the number if: 4.5% of it is 23% of 45
Usimov [2.4K]
Well, let's say the number is "x", so "x" is the 100%.

now, what the dickens is 23% of 45 anyway?

if we take 45 to be the 100%, what is its 23%?

\bf \begin{array}{ccll}
amount&\%\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
45&100\\
a&23
\end{array}\implies \cfrac{45}{a}=\cfrac{100}{23}\implies \cfrac{45\cdot 23}{100}=a\implies 10.35=a

ok, well, we know then that 4.5% of "x" is 10.35, we also know that "x" is the 100%, what is "x" anyway?

\bf \begin{array}{ccll}
amount&\%\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
x&100\\
10.35&4.5
\end{array}\implies \cfrac{x}{10.35}=\cfrac{100}{4.5}\implies x=\cfrac{10.35\cdot 100}{4.5}
3 0
4 years ago
Read 2 more answers
Is the answer 35 a5 b5 c5
Serga [27]
You almost had it instead of positive 35 it should be negative 35
so the answer should be -35a5b5c5
6 0
3 years ago
Solve the equations. 4( 3d+23)= 12+32d​
mr_godi [17]

Answer:

d = 4

Step-by-step explanation:

4(3d + 23) = 12 + 32d ← distribute parenthesis on left side

12d + 92 = 12 + 32d ( subtract 32d from both sides )

- 20d + 92 = 12 ( subtract 92 from both sides )

- 20d = - 80 ( divide both sides by - 20 )

d = 4

3 0
3 years ago
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