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3 years ago

The radius of a circle is 3 millimeters. What is the circle's area?

Mathematics

1 answer:

Nataly_w [17]3 years ago

5 0

Answer:

28.27mm³

Step-by-step explanation:

22/7× 3²

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In a right triangle, sin(40 - 2) = cos(32)'. What is the value of x?

o-na [289]

Answer:

x = 25

Step-by-step explanation:

Correct question

In a right triangle Sin (40-x)=cos(3x) what is the value of x

Since Sin theta = Cos(90-theta)

Sin (40-x) = Sin(90-3x)

40 - x = 90 - 3x

-x+3x = 90 - 40

2x = 50

x = 25

Hence the value of x is 25

5 0

3 years ago

tammy is going to rent a truck for one day. there are two companies she can choose from, and they have the following prices. com

DIA [1.3K]

Company A-> charges $75 and unlimited millage.

Company B-> initial fee $55 and charges +$0.8 for every mile driven.

The inequality that represents for what millage will company A charges less than company B is:

Let m be the number of miles

[tex]\begin{gathered} 75<55+0.8m \\ 75-55<0.8m \\ 20<0.8m \\ \frac{20}{0.8}For 25 miles company A will charge less than company B.

5 0

1 year ago

If 2.4 hours is a tenth of 24 hours<br> How much is that in total minutes?

Komok [63]

2.4 * 60 = 144 total minutes

7 0

3 years ago

Read 2 more answers

there are four semi trailer trucks parked in a line at the rest stop after the first truck each truck in the line weighs 2 tons

alexira [117]

Call the weght of the first truck " $w_{1}$ ". We then know that the truck after that is 2 tons more, and the next and the next. i.e:
$w_{2} = w_{1} + 2$
$w_{3} = (w_{2} + 2) = (w_{1}+4)$
$w_{4} = (w_{3} + 2) = (w_{1}+6)$

We also know that total is 32 tons.
$w_{total} = 32 = (w_{1}) + (w_{2}) + (w_{3}) + (w_{4})$
$32 = (w_{1})+(w_{1}+2)+(w_{1}+4)+(w_{1}+6)$
$32= 4(w_{1})+12$
$20=4(w_{1})$
$w_{1} = 5 tons$

Therefore the trukcs weigh 5,7,9 and 11 tons for a total of 32 tons.

Converting to pounds, the trucks weigh 10,000, 14,0000, 18,0000 and 22,000 pounds.

3 0

3 years ago

Make r the subject of the formula

zloy xaker [14]

Answer:

$r=\frac{-a+p}{a+p}$