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grigory [225]
2 years ago
8

Pls help me with my question I will mark brainliest 20 points

Mathematics
2 answers:
kobusy [5.1K]2 years ago
8 0
<h3>Calculate the area of a circle.</h3>

To start solving the exercise, we obtain as data:

  • π = 3
  • r = 3 ft

We apply as a formula:

  • A = πr², where
  • A = area
  • π = pi
  • r = radius

We apply the formula and solve:

  • <em>A = π r²</em>
  • <em>A = 3× (3 ft)²</em>
  • <em>A = 3 × 9 ft²</em>
  • <em>A = 2</em><em>7</em><em> </em><em>ft</em><em>²</em>

Therefore, the area of the circle is <em>2</em><em>7</em><em> ft².</em>

Pavel [41]2 years ago
7 0

Answer: 27ft²

Step-by-step explanation: Soln:

Given that,

π=3

Radius(r)=3ft.

We have,

A = π r²

A = 3* (3)²

A=3*9

A=27ft²

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the ratio of girls to boys in the math club was 3.5. if there were 120 children altogether, how many girls were there?
sergejj [24]

3 girls to 5 boys

3+5 =8

120/8 = 15

3 *15 = 45 girls


5 0
4 years ago
Plzzzzzzxzz help with these 2 problems pleeeaseee:((
givi [52]
the first answer is 59.2 and the second answer is 1.5
4 0
3 years ago
19.76x+227=-92.57+1052
yuradex [85]

x=37+1/15.0839694656

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4 years ago
Read 2 more answers
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AlexFokin [52]

Answer:

There ya go

Step-by-step explanation:

4 0
3 years ago
About how much difference in average leaf width would you find in two forests whose average annual rainfalls are near 1500 mm bu
goblinko [34]

Answer:

4.80 mm to 2 d.p

Step-by-step explanation:

w = f(r)

f'(r) = (dw/dr) = (0.0218 mm/mm)

So, for a small difference in rainfall of 220 mm, what is the corresponding small difference in width of leaves in the two forests given.

One definition of a derivative or a rate of change is that it is the ratio of very small differences in the dependent variable to very small differences in the independent variable.

Mathematically,

(dw/dr) = (Δw/Δr) for very small Δw and Δr.

0.0218 = (Δw/220)

Δw = 0.0218 × 220 = 4.796 mm = 4.80 mm to 2 d.p

Hope this Helps!!!

5 0
3 years ago
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