2 years ago

Jacob is twice as old as Sue. The sum of their ages is 69 years. How old is Jacob

Mathematics

1 answer:

Neko [114]2 years ago

8 0

Answer:

Jacob is 46 years old.

Step-by-step explanation:

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KIM [24]

Area of the sector = 1/2 * r^2 * theta where theta is the angle subtended by the arc at the center ( in radians)

In this case m < theta = 360 - 235 = 125 degrees or 2.182 radians

So, the area of shaded area = 1/2 * 20^2 * 2.182 = 436.4 in^2

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3 years ago

. A recent report in a women magazine stated that the average age for women to marry in the United States is now 25 years of age

Setler [38]

Answer: 0.0136

Step-by-step explanation:

Given : Mean : $\mu=25$

Standard deviation : $\sigma=3.2$

Sample size : $n=50$

The formula to calculate the z-score :-

$z=\dfrac{x-\mu}{\dfrac{\sigma}{\sqrt{n}}}$

For x = 24

$z=\dfrac{24-25}{\dfrac{3.2}{\sqrt{50}}}=-2.21$

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Hence, the probability that the sample mean age for 50 randomly selected women to marry is at most 24 years = 0.0136

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2 years ago

What is the slope of the line that passes through the points (-20, 18) and (30, 14)?<br>25

vodomira [7]

Answer:

The equation of the line that passes through the points

(-20,18) and (30,14)

y=-2/25x+82/5

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2 years ago

Use the numbers 2, 3, 4, and 5 and the symbols + and = to write a true math sentence

ArbitrLikvidat [17]

Answer:

3+4 = 5+2

Step-by-step explanation:

They equal each other when they are added up.

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3 years ago

Find the total monthly cost for this plan to buy.

sergiy2304 [10]

Answer:

maybe this Total cost

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=1,027.67

Step-by-step explanation:

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2 years ago

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