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3 years ago

I need to know how to solve it and get the answer right to check my work

Mathematics

2 answers:

liraira [26]3 years ago

6 0

Assuming that's 22/22, the answer would be 1.Hope this helps!
Could I get Brainliest?

Ede4ka [16]3 years ago

3 0

Solve it by finding out how many times 22 can be put into 22, which is once, so the answer is 1.

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Simplify . (1/c + 1/h)/(1/(c ^ 2) - 1/(r ^ 2))

Marrrta [24]

Answer:

$\frac{\left(h+c\right)cr^2}{h\left(r^2-c^2\right)}$

Step-by-step explanation:

$\frac{\frac{1}{c}+\frac{1}{h}}{\frac{1}{c^2}-\frac{1}{r^2}}$

Combine $\frac{1}{c} + \frac{1}{h}$

$\frac{\frac{h+c}{ch}}{\frac{1}{c^2}-\frac{1}{r^2}}$

Combine the bottom, too.

$=\frac{\frac{h+c}{ch}}{\frac{r^2-c^2}{c^2r^2}}$

Apply the fraction rule

$=\frac{\left(h+c\right)c^2r^2}{ch\left(r^2-c^2\right)}$

Cancel

$=\frac{\left(h+c\right)cr^2}{h\left(r^2-c^2\right)}$

Therefore, $\frac{\left(\frac{1}{c}+\frac{1}{h}\right)}{\left(\frac{1}{\left(c^2\right)}-\frac{1}{\left(r^2\right)}\right)}:\quad \frac{\left(h+c\right)cr^2}{h\left(r^2-c^2\right)}$

5 0

2 years ago

What is the answer for this question

Ugo [173]

Answer:

1 - 1/10

Step-by-step explanation:

As strange as it may seem, the easiest way to answer this question is to calculate the probability of selecting an elephant first and then to subtract this probability from 1:

Adding up the Numbers of animals, we get 12+4+3+11, or 30. The probability of selecting an elephant is thus 3/30, or 1/10.

Thus, the probability of NOT selecting an elephant is 1 - 1/10 (Answer A).

5 0

3 years ago

What value of n makes the equation true? 1/2 (n + 4) = 6 A. 8 B. -1 C. 2 D. 4

Black_prince [1.1K]

1/2 (8+4)= 6
1/2(-1+4)= 1.5
1/2 (2+4)= 3
1/2 (4+4)= 4

So the correct answer would be A(8)

7 0

3 years ago

Four woman must cross a bridge over a deep canyon. It is a enemy territory. The must cross in the middle of the night. A lantern

iragen [17]

The 5 and 10 min cross. 10
The 5 min returns. 15 
The 20 and 25 min cross 40 
The 10 min comes back 50 
The 5 and 10 min cross again in60 Mins

7 0

3 years ago

In which figure is DE BC

stepan [7]

Answer:

Given: DB = 7.2 cm, AE = 1.8 cm and EC = 5.4 cm and DE || BC.

[by basic proportionality theorem which states that if a line is drawn parallel to one side of a triangle the other two sides in distinct points, then the other two sides are divided in the same.

7.2

5.4

1.8

AD=

5.4

7.2×1.8

AD=

⟹AD=2.4cm

4 0

2 years ago