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REY [17]
3 years ago
8

8 1/3 subtract 2 2/3

Mathematics
1 answer:
deff fn [24]3 years ago
4 0

Answer:

5 2/3........................

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I NEED HELP PLEASE HELP ME
Aloiza [94]
Answer:
294.14cm^2

Explanation:

First find the area of the whole piece of paper:
32*14=448

Then find the area of the two semicircles, semicircle + semicircle = 1 circle:

Area of a circle= (radius squared)(pi):
(7^2)(3.14) = 153.86

Subtract the area of the two semicircles from the whole paper area:
448-153.86 = 294.14


I hope this isn’t too confusing :)


5 0
3 years ago
**A rock dropped from a 100 foot tower.
mars1129 [50]

Answer:

2.83 s

Step-by-step explanation:

We are given that

h(t)=-16t^2+10t+100

When a rock reached the ground then h(t)=0

-16t^2+10t+100=0

16t^2-10t-100=0

Using quadratic formula

x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}

t=\frac{10\pm\sqrt{(-10)^2-4\times 16\times (-100)}}{2(16)}

t=\frac{10\pm\sqrt{100+6400}}{32}

t=\frac{10+\sqrt{6500}}{32}=2.83

t=\frac{10-\sqrt{6500}}{32}=-2.2

Time cannot be negative .Therefore, negative value of t can not be possible.

Hence, the rock takes 2.83 sec to reach the ground.

8 0
4 years ago
( 3u + 7 )( 5 - u )= 0​
mixas84 [53]

Answer:

The answer is 484. Please let me know if it helped you.

Step-by-step explanation:

5 0
3 years ago
Allison took 112 photos on vacation. she wants to put them in a photo album that holds 4 photos on each page .how many pages can
Sphinxa [80]
She could fill 28 pages

6 0
3 years ago
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Which will result in a diffrent of squares
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 (− 7x + 4) · (− 7x − 4).
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3 years ago
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