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3 years ago

BRAINLIEST + 10 POINTS

Mathematics

2 answers:

VARVARA [1.3K]3 years ago

7 0

Answer:

what am I supposed to anwser

Maslowich3 years ago

3 0

Answer:

area- 628

circumference- 62.8

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A number when divided by 18 has a quotient of 132 and a remainder of 9. What is the number?

postnew [5]

$\frac{n}{18} = 132 + \frac{9}{18}$
$n = 2376 + 9 
$
$n = 2385$

8 0

4 years ago

5,ooo invested 5 years 3% interest compounded continuously

galben [10]

A=pe^rt

A future value
P principle 5000
R interest rate 3/100 =0.03
T time 5 years

A=5,000×e^(0.03×5)
A=5,809.17

6 0

3 years ago

the base of a 15 ft ladder is 12 feet from the base of a building. a 25 foot ladder rests against the building at the same angle

castortr0y [4]

Answer:

The ladder reaches $15ft$

Step-by-step explanation:

In the first case we have

$cos\theta =\frac{12}{15}$

In second case let the height be $x$

We have

$sin\theta =\frac{x}{25}$

We know that

$cos\theta =\frac{12}{15}\\\\sin\theta =\sqrt{1-\frac{12^{2}}{15^{2}} } \\\\sin\theta =\sqrt{\frac{81}{225} } \\\\sin\theta =\frac{9}{15} }$

Substituting

$\frac{9}{15} =\frac{x}{25}\\\\x=\frac{25\times9}{15} =15$

The ladder reaches $15ft$

6 0

2 years ago

Find the volume of the frustrum of the right circular cone generated by rotating the line y = 3x+1 about the x-axis between x =

Juli2301 [7.4K]

Answer:

38π cubic units

Step-by-step explanation:

The volume V = ∫₀²πy²dx

Since y = 3x + 1, dy = 3dx ⇒ dx = dy/3

So, when x = 0, y = 3(0) + 1 = 0 + 1 = 1

when x = 2, y = 3(2) + 1 = 6 + 1 = 7

So, changing the variable to y and the limits of integration from y = 1 to y = 7, we have

V = ∫₀²πy²dx

V = π∫₁⁷y²dy/3

V = π[y³/3]₁⁷/3

V = π[y³]₁⁷/9

V = [7³ - 1³]π/9

V = [343 - 1]π/9

V = 342π/9

V = 38π cubic units

6 0

3 years ago

Two angles of a triangle are 120° and 6º.

polet [3.4K]

Answer:

54 degrees

Step-by-step explanation:

120+6= 126

180-126=54

7 0

3 years ago