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Leviafan [203]
2 years ago
7

If it takes 20 minutes to drive to the store, 9 minutes to walk from your car to the back of the store, then back to the registe

r, 2 minutes to walk back to you car, and 20 minutes to drive back why has my dad been gone for 9 years?​
Mathematics
1 answer:
just olya [345]2 years ago
7 0

Answer:

Maybe he ran out of gas. Give him a bit time to refill, and you'll be fine :)

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In a circle whose radius is 12, find the area of sector, in terms of , whose central angle
Anna11 [10]

Answer:

56.52 units² or 18π units²

Step-by-step explanation:

The formula for the area of a sector is:

A = πr²(x/360°)

where r is the radius and x is the measure of the central angle

Let's substitute the given measures into this equation:

A = πr²(x/360°)

A = (3.14)(12²)(45/360)

Solve:

A = (3.14)(12²)(45/360)

A = (3.14)(144)(45/360)

A = (452.16)(45/360)

A = (452.16)(.125)

A = 56.52

Therefore, the area of the sector is 56.52 units² or 18π units²

4 0
2 years ago
Joni sold 376 tickets for the school play. Student tickets cost $4 and adult tickets cost $7. Joni’s sales totaled $2080.
Ostrovityanka [42]

Answer:

(4s+7a) 376=2080

Step-by-step explanation:

(4s+7a) 376=2080

3 0
2 years ago
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A set of mathematics exam scores are normally distributed with a mean of 80.280.280, point, 2 points and a standard deviation of
Ugo [173]

Answer:

0.2379

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5 0
2 years ago
If you invest $4000 at 9% interest compounded annually, in how many years will you have $20,000. Give your answer the nearest te
Masteriza [31]

Answer:

18.7 years

Step-by-step explanation:

This is a compound interest problem and the following variables have been given;

Principal = 4000; this is the amount o be invested

APR = 9%; this is the compound interest to be earned

Accumulated amount = 20,000

We are required to determine the duration in years. We apply the compound interest formula;

A=P(1+r)^{n}

20000=4000(1+\frac{9}{100})^{n}\\20000=4000(1.09)^{n}\\5=(1.09)^{n}

The next step is to introduce natural logarithms in order to determine n;

ln5=nln(1.09)\\n=\frac{ln5}{ln(1.09)}\\n= 18.675

The number of years required is thus 18.7 years

6 0
3 years ago
HOW MANY TRIANGLES ARE THERE?????
Alja [10]

Answer:

I count 10 triangles.....

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3 years ago
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