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zmey [24]
2 years ago
13

15% of what number is 4.20

Mathematics
2 answers:
Serga [27]2 years ago
8 0

Answer:

Step-by-step explanation:

Tomtit [17]2 years ago
7 0

Answer:

92.8

Step-by-step explanation:

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Find the surface area of the pyramid round to the nearest tenth choose the correct unit
sineoko [7]

slant height(h) = 16.3ft

Base side = 20ft

\text{Area of pyramid=}\frac{1}{2\text{ }}\times perimeterofbase\text{ x slant height}

Perimeter of base = 4(base side) = 4(20) = 80ft

\begin{gathered} \text{Area of pyramid = }\frac{1}{2}\times80\times16.3 \\ \text{Area = }652ft^2 \end{gathered}

7 0
8 months ago
What is the name of the regular polygon that measures 140゚
andrezito [222]

Answer:

The regular polygon is a nonagon

Step-by-step explanation:

<u><em>The correct question is</em></u>

What is the name of the regular polygon that each interior angle measures 140゚?

we know that

The formula to find the sum of the interior angles in a regular polygon is equal to

n(a)=(n-2)180\°

where

n is the number of sides of the regular polygon

a is the measure of each interior angle of the regular polygon

we have

a=140\°

substitute in the formula and solve for n

n(140\°)=(n-2)180\°

140n=180n-360

180n-140n=360

40n=360

n=9\ sides

so

The regular polygon has 9 sides

therefore

The regular polygon is a nonagon

5 0
2 years ago
It costs $3.00 for 45 gallons of detergent. What is the cost per gallon of detergent? *
Sladkaya [172]

Answer:

0,06

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
The mayor of a town believes that over 47G% of the residents favor construction of an adjoining community. Is there sufficient e
photoshop1234 [79]

Answer:

There is sufficient evidence at the 0.05 level

Null hypothesis ; H0 : p = 0.47

Alternative hypothesis : H1 : p ≠ 0.47

Step-by-step explanation:

percentage favoring construction of adjoining community = 47%

level = 0.05

To determine if the 0.05 confidence level is enough to support the major's claim we have to state the Null and alternative hypothesis

Null hypothesis ; H0 : p = 0.47

Alternative hypothesis : H1 : p ≠ 0.47

5 0
2 years ago
Maria solved the area problem below. What was her error?
just olya [345]

Answer:

b

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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