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algol13
3 years ago
12

Convert 10°C to Fahrenheit. 45°F 65°F 50°F 42°F

Mathematics
1 answer:
skelet666 [1.2K]3 years ago
4 0

Answer:

C. 50°F

Step-by-step explanation:

(10°C × 9/5) + 32 = 50°F

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PLEASE ANSWER 20 POINTS + BRAINLIEST
KIM [24]

Answer:

t =  54.85714 seconds

Step-by-step explanation:

t = 12(210)+9000/210

t = (2520 + 9000) / 210

t = 11520 / 210

t =  54.85714 seconds

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4 years ago
A cylinder with a radius of 1 cm and a height of 21 cm has the same volume as a cone with a height of 7 cm. What is the radius o
Natasha_Volkova [10]

Answer:

<h2>A) 3 cm</h2>

Step-by-step explanation:

The formula of a volume of a cylinder:

V=\pi r^2H

r - radius

H - height

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V=\pi(1^2)(21)=21\pi\ cm^3

The formula of a cone:

V=\dfrac{1}{3}\pi r^2H

r - radius

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We have V = 21π cm³ and H = 7cm. Substitute:

\dfrac{1}{3}\pi(r^2)(7)=21\pi        <em>divide both sides by π</em>

\dfrac{1}{3}(7)(r^2)=21         <em>divide both sides by 7</em>

\dfrac{1}{3}r^2=3         <em>multiply both sides by 3</em>

r^2=9\to r=\sqrt9\\\\r=3\ cm

5 0
3 years ago
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The product of two irrational numbers is. Rational
Snowcat [4.5K]

Answer:

So the statement:

"The product of two irrational numbers is rational." is false.

Step-by-step explanation:

The product of two irrationals can be irrational or rational.

Example:

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\sqrt{2} is irrational but when you multiply it to itself the output is rational.

Example:

\sqrt{2} \cdot \sqrt{3}=\sqrt{6}

\sqrt{2} \text{ and } \sqrt{3} are irrational and when you multiply them you get an irrational answer of \sqrt{6}.

So the statement:

"The product of two irrational numbers is rational." is false.

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x = 90 / 5 = 18

answer 18 minutes
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