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3 years ago

Please answer will give points

Mathematics

1 answer:

-Dominant- [34]3 years ago

5 0

Answer:

step 2

Step-by-step explanation:

Given step 1

324π = π × 12² h

Then second step should read

324π = π × 144h ← 144 not 24 is the error

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The perimeter of a rectangle is 20 centimeters. Its length is 6 centimeters. What is its width?

sertanlavr [38]

Answer:

4 centimeters

Step-by-step explanation:

6+6=12

20-12=8

8/2=4

6 0

3 years ago

Chubb early on a snack store and is showing Billy Bob how to make some of the items he sells currently he is showing Billy Bob h

vagabundo [1.1K]

$\bf \begin{array}{lccclll}
&\stackrel{lb}{amount}&\stackrel{lb}{price}&\stackrel{total}{price}\\
&------&------&------\\
\textit{plain popcorn}&p&3&3p\\
\textit{caramel popcorn}&c&2.2&2.2c\\
-------&------&------&------\\
mixture&10&2.5&25
\end{array}$

so hmm whatever "p" and "c" are, we know that p + c = 10.

and we also know that 3p + 2.2c = 25

thus

$\bf \begin{cases}
p+c=10\implies \boxed{c}=10-p\\
3p+2.2c=25\\
----------\\
3p+2.2\left(\boxed{10-p} \right)=25
\end{cases}
\\\\\\
3p+22-2.2p=25\implies 3p-2.2p=25-22\implies 0.8p=3
\\\\\\
p=\cfrac{3}{0.8}\implies p=\cfrac{15}{4}\implies p=3.75$

how much will it be needed for caramel popcorn? well, c = 10 - p.

4 0

3 years ago

A slide 4.1 meters long makes an angle of 35° with the ground. To the nearest tenth of a meter, how far above the ground is the

Artemon [7]

Hey there! I'm happy to help!

We want to figure out what x is. Let's use a trigonometric ratio of our 35 degree angle to find it.

We see that x is opposite of the 35 degree angle. We also see that our hypotenuse 4.1 m. The hypotenuse is always across from the right angle.

The trigonometric ratio that deals with opposite and hypotenuse is the sine, which is the opposite divided by the hypotenuse. This gives us the following equation.

$sin35=\frac{x}{4.1}$

We want to solve for x, so we simply multiply both sides 4.1

$x=4.1(sin35)$

If we evaluate this on our calculators, we get 2.351663389......

We round this to the nearest tenth, giving us 2.4 m.

Have a wonderful day! :D

6 0

3 years ago

The scale on a map shows that 5 centimeters = 2 kilometers. What number of centimeters on the map represents an actual distance

liq [111]

Answer:

12.5 cm

Step-by-step explanation:

The ratio of map distance to ground distance is the same at any distance:

(map distance)/(ground distance) = (5 cm)/(2 km) = (x)/(5 km)

Multiply by 5 km and you have ...

x = (5 cm)(5/2) = 12.5 cm

The ground distance of 5 km is represented by 12.5 cm on the map.

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3 years ago

The farmer says the corn is almost ready to

Lady bird [3.3K]

??? What is the rest of the question?

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3 years ago