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inn [45]
3 years ago
5

A......B......C.......or D

Mathematics
2 answers:
Dima020 [189]3 years ago
8 0
A is the right answer
IrinaVladis [17]3 years ago
5 0
I think the answe is a
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A landing pad for a helicopter is in the shape of a circle with a radius of 7 meters. Which of the following is closest to the a
ANTONII [103]

Answer:

The approximate value of the area is 153.86\ m^{2}

Step-by-step explanation:

we know that

The area of the circle (landing pad) is equal to

A=\pi r^{2}

we have

r=7\ m

substitute

A=\pi (7)^{2}

A=49\pi\ m^{2} ----> exact value of the area

Find the approximate value

assume \pi=3.14

A=49(3.14)=153.86\ m^{2} ------> approximate value of the area

5 0
2 years ago
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The inequity of Six times a number x is at least −24
professor190 [17]

Answer:

6x ≥ -24

x  ≥ -4

Step-by-step explanation:

the inequality of Six times a number x is at least −24

6x ≥ -24

Divide each side by 6

6x/6  ≥ -24/6

x  ≥ -4

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3 years ago
As a promotion, a clothing store draws the name of one of its customers each week. The prize is a coupon for the store. If the w
kompoz [17]

The given formula is f(x) = 20(1.2)^x

The formula is the starting amount multiplied by 1 + the percentage raised to the number of weeks.


A) the percent increase is 20% ( 1.2 in the formula is 1 +20% as a decimal)

B) the original amount is $20

C) for 2 weeks, replace x with 2 and solve:

20(1.2)^2

20(1.44) = $28.80

After 2 weeks the coupon is $28.80

D)  To solve for the number of weeks (x) set the equation equal to $100:

100 = 20(1.2)^x

Divide both sides by 20:

5 = 1.2^x

Take the natural logarithm of both sides:

ln(5) = ln(1.2^x)

Use the logarithm rule to remove the exponent:

ln(5) = x ln(1.2)

Divide both sides by ln(1.2)

x = ln(5) / ln(1.2)

Divide:

X = 8.83

At 8.83 weeks the coupon would be $100, so after 9 weeks the coupon would be greater than $100

The answer is 9 weeks.

4 0
3 years ago
Dee’s clothing is having a discount of 40% on all shirts. Let x represent the regular price of any shirt in the store. Write an
Luden [163]
S=shirt and P=price x=reg price so x-s I think
6 0
3 years ago
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A 25 foot ladder is set against the side of a house so that it reaches up 15 feet. If Damian grabs the ladder at its base and pu
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Answer: 9.8 ft

Step-by-step explanation: did on delta math:)

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