4 years ago

What is sum of two fifths and one forth?

Mathematics

1 answer:

Alecsey [184]4 years ago

3 0

2/5+1/4 = 8+5/20 = 13/20 ...answer !!!

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If f(1)=4 and f(n) = 2f(n-1) + 3, then f(4)=

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F(1)=4,f(2)=8,f(3)=16,f(4)=32

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3 years ago

Please help- Geometry question!!

trasher [3.6K]

The arc length of AB = 8.37 meters

Solution:

Degree of AB (θ) = 60°

Radius of the circle = 8 m

Let us find the arc length of AB.

Arc length formula:

$$\text { Arc length }=2 \pi r\left(\frac{\theta}{360^{\circ}}\right)$

$$=2 \times 3.14 \times 8\left(\frac{60^{\circ}}{360^{\circ}}\right)$

$$=2 \times 3.14 \times 8\left(\frac{1}{6}\right)$

$$=2 \times 3.14 \times 4\left(\frac{1}{3}\right)$

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Hence the arc length of AB is 8.37 meters.

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3 years ago

Mr.Johnson has 124 English essays to grade. He determines that he can grade 8 per day. How many days will it take Mr.Johnson t g

matrenka [14]

Answer:

16 days or 15.5 I'm not sure what if the question wants exact answer or rounded to how many full days it will take

8 0

3 years ago

Molly played an online game three times. Her scores were 5.5, -3.6, and 12.8. What was her average score for three games?

Ivahew [28]

In order to find the solution you must calculate the mean, or the average by adding the numbers together and dividing by how many numbers there are.

5.5 + -3.6 + 12.8 = 14.7

14.7 ÷ 3 = 4.9

4.9 is Molly's average score.

Hope this helps! <3

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4 years ago

Work out the height of this triangle with base, b = 5.9mm and area, A = 149.27mm2.

AlekseyPX

Answer:

50.6

Step-by-step explanation:

50.6*5.9=298.54/2=149.27

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3 years ago