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damaskus [11]
3 years ago
14

Can someone help me with number 4?? How do you draw it out or how did you find it out??

Mathematics
1 answer:
Marina CMI [18]3 years ago
5 0
There are 52 weeks in one year and Flora records her pet hamsters weight once every week for one year, so she recored 52 weight observations.

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Which of the following are possible values of r?<br><img src="https://tex.z-dn.net/?f=%20%7Br%7D%5E%7B2%20%7D%20%20%3D%20%20%5Cf
marshall27 [118]

Answer:

r=\frac{\sqrt{3} }{4}    and    r=-\frac{\sqrt{3} }{4}

Step-by-step explanation:

when you solve for r in the given equation, you need to apply the square root property, which gives positive and negative answers (both should therefore be considered):

r^2=\frac{3}{16} \\r=+/-\sqrt{\frac{3}{16}} \\r=+/-\frac{\sqrt{3} }{4}

then you need to include these two possible solutions:

r=\frac{\sqrt{3} }{4}    and    r=-\frac{\sqrt{3} }{4}

5 0
3 years ago
Stacy owes $40 on her credit card. After she made a payment, her new balance was $10. What was the amount of her
Yakvenalex [24]

Answer:

Step-by-step explanation:

x  + 40 = 10

x = -30

She paid $30 on her credit card

6 0
2 years ago
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Anyone have a pad let I can join? 3x3÷1​
Nina [5.8K]

Answer:

9

Step-by-step explanation:

3 x 3 =9 9 divived by 1

9

4 0
2 years ago
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A box contains 720 marbles. The result of 20 marbles pulled at random from the box is given below. • 5 red marbles • 6 blue marb
mrs_skeptik [129]

20 is the size of a random sample of 720 marbles.

Notice that 720=20*36

If there are 2 yellow marbles in the sample of 20 marbles, then we can expect:

2*36=72 yellow marbles in the box of 720 marbles

So, B) 72 is the correct answer

4 0
3 years ago
I need help finding the angle measurements and side lengths.
Katen [24]

Answer:

right triangle

isosceles triangle

Step-by-step explanation:

The  box in the corner means that this triangle is a right triangle.  It is a 90 degree angle

We know this is an isosceles triangle since the two sides have the lines  on them.  Those marks means it has the same side length.

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3 years ago
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