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Mademuasel [1]
3 years ago
12

If an area in the form of a circle is to be roped off by a rope 10 m long, what will be the radius of this area? Round your answ

er to two decimal places.
A. 0.31 m
B. 1.59 m
C. 2.56 m
D. 3.18 m
Mathematics
1 answer:
Lunna [17]3 years ago
6 0
The answer is d because A = pi times r squared and 10 divided by pi round to the nearest hundredth is 3.18
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Two supplementary angles have measures of 9x degrees and 3x degrees. What is the measure of the longer angle?
strojnjashka [21]
9x+3x=180 by def. of supplementary
12x=180
12/12x=180/12
x=15

9x=9(15)=135°
5 0
3 years ago
If f(x) = -x^3 + 2x^2 - 3, find f(2).<br><br> A) -19<br> B) -3<br> C) -1<br> D) 5
AfilCa [17]

Answer:

B

Step-by-step explanation:

To evaluate f(2) substitute x = 2 into f(x), that is

f(2) = - (2)³ + 2(2)² - 3 = - 8 +2(4) - 3 = - 8 + 8 - 3 = - 3

7 0
3 years ago
Who ever gets it right first gets brainliest
olga55 [171]

Answer: 942

Step-by-step explanation: this was a tuff one!

6 0
3 years ago
A recipe calls for 120 mL of milk for each 200 g of flour.Juan is going to use 1 pound of flour. Estimate the number cups of mil
Ratling [72]

Answer:

<u>1 cup</u> of milk Juan should use.

Step-by-step explanation:

Given:

A recipe calls for 120 ml of milk for each 200 g of flour.

Juan is going to use 1 pound of flour.

Now, to estimate the number of cups of milk.

Let the quantity of milk be x.

Now, to convert the pound of flour to gram.

1 pound = 453.59 g.

So, Juan is going to use 453.59 g of flour.

As, given recipe calls for 120 ml of milk for each 200 g of flour.

So, 120 ml is equivalent to 200 g.

Thus, x is equivalent to 453.59 g.

Now, to solve by using cross multiplication method:

\frac{120}{200} =\frac{x}{453.59}

By cross multiplying we get:

54430.8=200x

Dividing both sides by 200 we get:

272.154=x

x=272.154

The quantity of milk = 272.154 ml.

Now, converting the quantity into cups by conversion factor:

1 ml = 0.004 cup.

So, 272.154 ml of milk is:

272.154 × 0.004

=1.088 cups.

Estimating the number = 1 cup.

Therefore, 1 cup of milk Juan should use.

7 0
3 years ago
For which regular polygon is 30 degrees the smallest angle of rotational symmetry?
eduard
<h3>answer.</h3>

•given that is smallest angle of rotational symmetry for a regular polygon is 30

•we have to find the number of side does the regular polygon have

•if we can rotate of figure around a center point be fewer than 360° and the figure appears and change then the figure has the rotation symmetry

<h3>Hence,12 number of sides the polygon.</h3>

no. of side= 360/ smallest angle at centre=12

<em>I hope</em><em> </em><em>it's </em><em>help</em>

4 0
3 years ago
Read 2 more answers
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