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Lorico [155]
3 years ago
15

Jan's average score after fifteen tests was 82. Her average on the next five tests was 90. What was her average score for all tw

enty tests?
Mathematics
1 answer:
Leokris [45]3 years ago
4 0

Answer:

86

Step-by-step explanation:

82+90=172

172/2 (divided by two because thats how many numbers we added up to get 172)

172/2=86

86 is your answer

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A cube has a volume of 216cm/3.what is the area of the base of the cube
Anettt [7]

Answer: 36 cm^2

Step-by-step explanation:

Hello!

We can start by finding the cube root of 216, which is 6. This is the length of each side of the cube.

Now, the area of the base of the cube is equal to 6^2=36 cm^2.

7 0
3 years ago
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A circle has a diameter of 4 inches. Which statement about the area and circumference of the circle is true?
hoa [83]
Only the second one
when diameter is 4 r=2
so 2pi*2=2²*pi the first is circumference the second area
7 0
3 years ago
Josue leans a 26-foot ladder against a wall so that it forms an
postnew [5]

Answer:

25.61 feet

Step-by-step explanation:

First, we can draw a picture (see attached picture). With the wall representing the rightmost line, and the ground representing the bottom line, the ladder (the hypotenuse) forms a 80 degree angle with the ground and the wall and ground form a 90 degree angle.

Without solving for other angles, we know one angle and the hypotenuse, and want to find the opposite side of the angle.

One formula that encompasses this is sin(x) = opposite/hypotenuse, with x being 80 degrees and the hypotenuse being 26 feet. We thus have

sin(80°) = opposite / 26 feet

multiply both sides by 26 feet

sin(80°) * 26 feet = opposite

= 25.61 feet as the height of the wall the ladder reaches

6 0
2 years ago
Question 3
Wittaler [7]

Answer:

75

Step-by-step explanation:

4 0
3 years ago
Need help! Figure shown.
Finger [1]

Answer:C

Step-by-step explanation: In order for it to become the second figure it needs to be enlarged and reflected. It needs to be enlarged first so it will end up placed in the right spot.

7 0
3 years ago
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