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4 years ago

-8 (7/10) as a mixed number

Mathematics

2 answers:

FrozenT [24]4 years ago

6 0

Answer:

7 1/2

Step-by-step explanation:

Oliga [24]4 years ago

5 0

-87/10?
I believe that’s right

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A football is kicked vertically upward from a height of 4 feet with an initial speed of 65 feet per second. The formula h=4+65t−

KATRIN_1 [288]

Answer: h = 70ft

Step-by-step explanation: To find the height the ball reached after 2 seconds, substitute variable t for 2 and calculate height:

$h=4+65t-16t^{2}$

$h=4+65.2-16.2^{2}$

$h=4+65.2-16.4$

$h=4+130-64$

h = 70

After 2s, the football reached a height of 70 feet.

3 0

4 years ago

Read 2 more answers

During the spring you do yard cleanup for households and you also paint houses you earn $8 an hour cleaning up and $12 an hour p

Andre45 [30]

Answer: you spent 250 hours during your cleanup.

you spent 150 hours painting

Step-by-step explanation:

Let x represent the number of hours that you spent during your cleanup.

Let y represent the number of hours that you spent painting.

you earn $8 an hour cleaning up and $12 an hour painting last summer and you earned $3800 . it means that

8x + 12y = 3800- - - - - - - - - -- 1

You worked a total of 400 hours. This means that

x + y = 400

Substituting x = 400 - y into equation 1, it becomes

8(400 - y) + 12y = 3800

3200 - 8y + 12y = 3800

- 8y + 12y = 3800 - 3200

4y = 600

y = 600/4 = 150 hours

Substituting y = 150 into x = 400 - y, it becomes

x = 400 - 150

x = 250 hours

5 0

3 years ago

Use the spider tool located on page 1 of this activity to draw a 12-pointed star for the new logo. (Hint:If the spider rotates 3

lidiya [134]

Answer:

each of the 12 turns is 150°

Step-by-step explanation:

If we number the points of the star 1–12, in order for the star to be symmetrical, each point must connect to two points symmetrically located around the centerline.

That is, point 1 may connect to points {2, 12} or {3, 11} or {4, 10}, or {5, 9} or {6, 8} or {7, 7}. For each of these connections, the angle made at the point of the "star" is, respectively, 150°, 120°, 90°, 60°, 30° or 0°. For these angles, the figure obtained will be ...

150° - dodecagon, a 12-sided figure

120° - hexagon

90° - square

60° - equilateral triangle

30° - 12-pointed star

0° - straight line

The two 12-pointed figures are shown in the attachment.

We suspect the star you're interested in is the one with points that are 30°. In order to have that point angle, the spider must make a turn of 180° -30° = 150°.

The spider will make 12 turns of 150°, for a total of 1800°, for a total of 5 full turns of 360°.

4 0

4 years ago

How much is two thousand three hundred and five-tenths, plus one hundred twenty-five and one-hundredth, plus five thousand ten a

mrs_skeptik [129]

The answer is B.

Hope that helps, if you need any more help, just ask : )

7 0

3 years ago

Read 2 more answers

What is c? 4(c - 3) = 8

Ket [755]

Answer:

4 (c - 3) = 8

4c - 12 = 8

4c = 8 + 12

4c = 20

c = 20 ÷ 4

c = 5

Hope it helps!

7 0

3 years ago