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lyudmila [28]
3 years ago
10

How can I solve number 13 and 14?

Mathematics
2 answers:
Ede4ka [16]3 years ago
5 0
The top one can go by halves, and the bottom one can go by 1's. so for the top 1/2, 1, 1 1/2, 2, and 2 1/2 while the bottom would be 0 1 2 3 4... and so on
SSSSS [86.1K]3 years ago
3 0
13. \frac{1}{2}, 1, 1\frac{1}{2}, 2, 2\frac{1}{2}
14. \frac{1}{5},  \frac{2}{5},  \frac{3}{5},  \frac{4}{5}, 1, 1 \frac{1}{5}, 1 \frac{2}{5}, 1 \frac{3}{5}
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A ball is thrown vertically upwards with an initial velocity of 22 m/s. When will its speed be 10
gogolik [260]

Answer:

<em>The ball's speed will be 10 m/s at t=1.22 seconds</em>

Step-by-step explanation:

The vertical motion of an object is controlled by the force of gravity. This means that there is a non-zero net force acting on the object that makes it accelerate downwards.

If the object is thrown upwards at speed vo, its speed at time t is:

v_f=v_o-g.t

Where g is the acceleration of gravity g=9.8 m/s^2.

Our ball is thrown upwards with v0=22 m/s. We need to calculate the time when its speed is vf=10 m/s.

Solving the above equation for t:

\displaystyle t=\frac{v_o-v_f}{g}

Substituting:

\displaystyle t=\frac{22-10}{9.8}=\frac{12}{9.8}

t=1.22 seconds

The ball's speed will be 10 m/s at t=1.22 seconds

8 0
3 years ago
At her brother’s birthday party, Lisa ate 80 pretzels, or 20% of a bag. A tape diagram. Lisa ate 20 percent out of 100 percent o
yaroslaw [1]

The correct answers are a, c, and e.

6 0
3 years ago
Read 2 more answers
Simplify -15.6 / -6.
Marizza181 [45]

the answer to the question is 2.6

4 0
3 years ago
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Find the dimensions of a rectangle whose width is 6 miles less than it’s length and whose are is 55 square miles.
SSSSS [86.1K]

area = width * length

or

A = W * L

55 = W * (W+6)

solve for width:

0 = W^2 + 6W - 55

this is a quadratic and has two solutions -11 and 5

a length can only be non-negative so discard -11.

width W = 5 miles

now the length is 5+6 = 11 miles


6 0
2 years ago
Read 2 more answers
Can someone please check this?
hodyreva [135]
That’s right cuz there’s 2 cubes in height and if one cube is 4ft then 2 would be 8ft
6 0
9 months ago
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