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4 years ago

Which represents the solution set of inequality 5X -9 is greater than or equal to 21

Mathematics

1 answer:

const2013 [10]4 years ago

5 0

5x - 9 is equal to 21

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The area of a square poster is 59 in squared 2 Find the length of one side of the poster to the nearest tenth of an inch.

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I think it is 0.58 to the nearest tenth of an inch. hope I'm not wrong.

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If Michael invests $2000 in a bank at a rate of interest of 5.5% for 6 years. How much interest will he make?

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3 years ago

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I'm very confused <br> Please help ASAP!!!

harina [27]

Answer:

First case

0.3m = r

0.3m = 18

m = 18/0.3

m = 60 mins.

Second case

0.3m = r

0.3 x 180 = r

r = 54 rows

Third case

0.3m = r

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m = 240 minutes

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0.3m = r

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4 years ago

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The area of a square floor on a scale drawing is 64 square centimeters, and the scale drawing is 1 centimeter:3 ft. What is the

Oxana [17]

Answer:

Part a) The area of the actual floor is $576\ ft^{2}$

Part b) The ratio of the area in the drawing to the actual area is $\frac{1}{9}\frac{cm^{2}}{ft^{2}}$

Step-by-step explanation:

we know that

The scale drawing is $\frac{1}{3}\frac{cm}{ft}$

step 1

Find the dimensions of the square on a scale drawing

The area of a square is equal to

$A=b^{2}$

where

b is the length side of the square

$A=64\ cm^{2}$

$64=b^{2}$

$b=8\ cm$

step 2

Find the dimensions of the actual floor

Divide the length of the floor on the drawing by the scale drawing

$8/(1/3)=24\ ft$

step 3

Find the area of the actual floor

The area of a square is equal to

$A=b^{2}$

substitute

$A=24^{2}=576\ ft^{2}$

step 4

Find the ratio of the area in the drawing to the actual area

$\frac{64}{576}\frac{cm^{2}}{ft^{2}}$

Simplify

Divide by 64 both numerator and denominator

$\frac{1}{9}\frac{cm^{2}}{ft^{2}}$

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3 years ago

a dvd has a diameter of 16 centimeters.what is the the area of the dvd?round the answer to the nearest hundredth.use 3.14 for n

melomori [17]

Answer:

A = 201 cm²

Step-by-step explanation:

We know that the area of a circle can be calculated with the formula:

A = πr² = π(d/2)²

with d being the diameter.

Therefore:

A = 3.14(8cm)² = 201 cm²

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2 years ago

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