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Jlenok [28]
4 years ago
13

What is the area of the circle below? Use 3.14 for pi and round to the nearest tenth

Mathematics
2 answers:
IgorC [24]4 years ago
7 0

Answer:

A ) 17.6

Step-by-step explanation:

I'm probably wrong but I did

2.8 x 2 = 5.6

5.6 x 2 = 17.58400

Deffense [45]4 years ago
6 0
The answer is 17.6 i sent you one of my notes about this hope it helps you!
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Find the length of the shorter leg of a right triangle with the longer leg is 9 feet more than the shorter leg the hypotenuse is
Jobisdone [24]

Answer:

Length of Shorter leg = 27 feet

Length of Longer leg = 36 feet

Length of Hypotenuse = 45 feet

Step-by-step explanation:

Given:

Let,

    Length of Shorter leg = x,

According to the given condition we have

∴  Length of Longer leg = x + 9 feet

∴  Length of Hypotenuse = 2x - 9 feet

To Find:

Length of Shorter leg = ?

Solution:

Now In Right Angle Triangle, By Pythagoras theorem we have

(\textrm{Hypotenuse})^{2} = (\textrm{Shorter leg})^{2}+(\textrm{Longer leg})^{2}

substituting the given values we get

(2x-9)^{2} = (x)^{2}+(x+9)^{2}\\

By using Identity (A ± B)² = A² ± 2AB +B²  we get

4x^{2} -36x+81=x^{2} +(x^{2} +18x+81)\\\\4x^{2} -2x^{2} -36x-18x=81-81\\\\2x^{2} -54x=0\\2x(x-27)=0\\2x=0 or x-27=0\\\therefore x\ cannot\ be \ zero\\\therefore x = 27 \feet

Substituting x=27 we get

∴  Length of Longer leg = x + 9 =27 +9 = 36 feet

∴  Length of Hypotenuse = 2x - 9 = 2×27 -9 = 45 feet

7 0
3 years ago
Carol wants to make a quilt using a scale of 1.5 inches=2 feet. Her scale drawing is 7.5 inches by 10.5 inches. What is the area
cestrela7 [59]

Answer:

140 ft

Step-by-step explanation:

7 0
3 years ago
What is the LCM of 3 and 7
Dima020 [189]

Answer:

The LCM of 3 and 7 is 21.

Step-by-step explanation:

‎‎‎‎‎‎

6 0
3 years ago
Read 2 more answers
does a polygon have at least 3 straight sides and angles or is it a figure with at least three sides?
solmaris [256]
The correct answer is it is a figure with at least 3 straight sides. When you think of a square or a triangle they both have at least 3 sides that are straight. A circle doesn't have any straight sides so it is not a polygon.
You can prove that the other answer is wrong because of two things:
The definition of a polygon is a plane figure with at least three straight sides.
Also, when you think of most shapes what do they all have in common? The have at least three straight sides
5 0
3 years ago
Read 2 more answers
Marisa's car gets an average of 28 miles per gallon of gas. She plans to drive 200 miles today and 220 miles tomorrow. How many
nadezda [96]

Answer:

15

Step-by-step explanation:

Add the total of miles Marisa is going to drive; 200 + 220 = 420

Next, divide the total miles by the average miles Marisa can travel on one gallon of gas; 420 / 28 = 15

(Hope this helps!)

5 0
3 years ago
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