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4 years ago

Can you answer these questions as fast as you can??

Mathematics

1 answer:

Wewaii [24]4 years ago

6 0

70

The information given is that for every 2 students studying physics 3 were studying chemistry

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If the rate of inflation is 1.9% per yeta, the future price p(t) in dollars of a certain item can be modeled by the following ex

crimeas [40]

Answer:

P(0) = 2000

P(10) = 2414

Step-by-step explanation:

The price for today is given by P(t) when t=0. Put 0 where t is, and do the arithmetic.

P(0) = 2000·1.019^0 = 2000

The price in 10 years is given by P(t) when t=10. Put 10 where t is, and do the arithmetic.

P(10) = 2000·1.019^10 ≈ 2000·1.207096 ≈ 2414

5 0

3 years ago

Can someone solve this equation and show the work please 8.3(x+3.1)=83

sp2606 [1]

This is the answer of the equation

3 0

3 years ago

-the equations x-y=-14 and -x-y=14 what is the number of solutions? A.) no solutions B.) infinitely many solutions C.) one solut

Yuki888 [10]

Answer:

The answer is C one solution

Step-by-step explanation:

x-y=-14

-y=-x-14 bring x to the other side

y=x+14 divide everything by -1

-x-y=14

-y=x+14 bring x to the other side

y=-x-14 divide everything by -1

6 0

3 years ago

A fair coin is flipped twelve times. What is the probability of the coin landing tails up exactly nine times?

seraphim [82]

Answer:

$P\left(E\right)=\frac{55}{1024}$

Step-by-step explanation:

Given that a fair coin is flipped twelve times.

It means the number of possible sequences of heads and tails would be:

2¹² = 4096

We can determine the number of ways that such a sequence could contain exactly 9 tails is the number of ways of choosing 9 out of 12, using the formula

$nCr=\frac{n!}{r!\left(n-r\right)!}$

Plug in n = 12 and r = 9

$=\frac{12!}{9!\left(12-9\right)!}$

$=\frac{12!}{9!\cdot \:3!}$

$=\frac{12\cdot \:11\cdot \:10}{3!}$ ∵ $\frac{12!}{9!}=12\cdot \:11\cdot \:10$

$=\frac{1320}{6}$ ∵ $3!\:=\:3\times 2\times 1=6$

$=220$

Thus, the probability will be:

$P\left(E\right)=\frac{n\left(E\right)}{n\left(S\right)}$

$=\frac{220}{4096}$

$=\frac{55}{1024}$

Thus, the probability of the coin landing tails up exactly nine times will be:

$P\left(E\right)=\frac{55}{1024}$

4 0

3 years ago

How long is the base of a parallelogram if it has an area of 120 square inches and a height of 10 square inches?

nataly862011 [7]

Answer:

Your answer should be 1,200 because 120 x 10 is 1,200

5 0

3 years ago

Read 2 more answers