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natulia [17]
2 years ago
14

The sprinkler turns through 3/4 of the circle. what is the measure of the angle it turns through?​

Mathematics
2 answers:
DaniilM [7]2 years ago
7 0

Answer:

270 degrees because 1/4 of a circle is 90 degrees

In-s [12.5K]2 years ago
6 0

Step-by-step explanation:

Since the angle measure of a full circle is 360 degrees, find 0.75 of 360.

The measure of the angle the sprinkler turns through is 270 degrees.

Another way to do this would be to take 1/4 of a circle, 90 degrees, and multiply it by 3!

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What is 16.748 rounded to nearest hundredths
IrinaK [193]

Answer:

17.000


Step-by-step explanation:

You round up because 7 is closest to 10

Hope this helps :)

7 0
3 years ago
A pair of jeans cost $30. There is a 6% sales tax determine the total cost of the jeans
Roman55 [17]
6/100 • 30 = 1.8
1.8 + 30 = 31.8
Answer is $31.8
7 0
3 years ago
What's 57/100 + 3/10​
MariettaO [177]

Answer:

Step-by-step explanation:

57/100 + 3/10

they need common denominators so a common denominator is 100

so 10x10=100 and 3x10= 30 so we now got

57/100 + 30/100 which is 87/100

6 0
2 years ago
Read 2 more answers
I am redesigning a rectangular prism in geometry where I have to minimize the surface area while maintaining the same volume. I
Romashka [77]

Strategy:

You will need to make use of the formulas for volume and area of the shapes you have chosen.

... volume of a sphere = (4/3)πr³

... area of a sphere = 4πr²

You will have to use the volume equation to find the radius of the sphere with the desired volume. Then use the area formula to verify the area is smaller than for your rectangular prism. (A sphere has the smallest surface area for a given volume of any figure.)

___

For your pyramid, it's a bit more complicated. You can use the formula for volume to find a relationship between the side length and the height. Then you can solve for height and put that expression into the equation for surface area. Now, you have an equation for surface area as a function of side length, which you can use to choose side lengths that give surface area in the range you want. You may find a graphing utility to be helpful for this.

... volume of a pyramid = (1/3)b^2h . . . . . b is the edge length of the base; h is the verical height.

... area of a pyramid = b^2 + 2bs, where s is the slant height: s=√((b/2)^ +h^2)

___

The cylinder is solved essentially the same way the pyramid is solved, except the formulas are slightly different.

... volume of a cylinder = πr²h

... area of a cylinder = 2πr² + 2πrh

Numbers:

If I did it right, a pyramid with a base edge length of 4 or 5 inches (or somewhere between) should give a smaller surface area for the volume you want.

For the cylinder, the radius may be around 2 or 2.1 inches.

5 0
2 years ago
Can someone explain 3(x+4)-1=7
harina [27]

Answer:

-4/3

Step-by-step explanation:

7 0
2 years ago
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