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3 years ago

Write as an addition problem: 22 - (-8)

Mathematics

1 answer:

Nutka1998 [239]3 years ago

8 0

Step-by-step explanation:

22+8

I think this ans may help you

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1. 3/7 divided by 6=?

artcher [175]

Answer:

1. 0.07142857142

2. 4/15

3.I have 4 cookies and I am hanging out with seven of my friends. Out of those 7 friends, 2 want a cookie. How many cookies would go around?

4. 4

5. 0.47619047619

6. No, he is not correct he can make 5 cups of dip. 1/8 = 3/24

3/4= 18/ 24

3/24 - 18/24 = 15/24 = 5/8.

Step-by-step explanation:

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3 years ago

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Triangle A is mapped onto triangle A’

Pavlova-9 [17]

Answer:

What do you mean???

Step-by-step explanation:

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3 years ago

Four cards numbered 1,5,8, and 9 are placed in a bag. A card is drawn at random and then replaced. The card is drawn at random a

anzhelika [568]

Answer: D

Step-by-step explanation:

so we know the probability of drawing a 9 is 25 percent or 1/4 because 9 is only one and doesn't repeat.

So the cards we drawn cards we drawn 2 times so multiply 1/4 times two.

1/4 * 2/1= 2/4 = 1/2

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3 years ago

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What is 36 times 34 times pi?

IgorLugansk [536]

36 * 34 * 3.14
3843.36

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4 years ago

A given field mouse population satisfies the differential equation dp/dt=.4p-450 where p is the number of mice and t is the time

Flura [38]

Answer:

a) 7.78 months

b) 1116

Step-by-step explanation:

Given -

$\frac{dP}{dt} = 0.4p-450$

Integrating the above equation with respect to time, we get -

$\int\ \frac{dP}{0.4p-450} = \int\ dt\\$

let us define new variable x

$x = 0.4p - 450 \\dx = 0.4 dy$

substituting these values in above integral equation, we get -

$\frac{1}{0.4} \int\ \frac{dx}{x} = \int\ dt\\ln x = 0.4 t + C\\x = ce^{0.4t}$

$P (t) = \frac{C}{0.4} e^{0.4t} +1125\\$

at t = 0, P (0) = 1075, using this condition, we get -

$\frac{c}{0.4} = -50\\P(t) = 50 e^{0.4t} +1125 \\t = 7.78\\P(0) = 1125 - \frac{1125}{e^{4.8}} = 1116$

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3 years ago