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2 years ago

A painting is 6 in tall and 4 in wide. if it is reduced to a width of 2 in then how tall will it be?

Mathematics

1 answer:

Vlada [557]2 years ago

8 0

6 inches squared is your answerStep-by-step explanation:4/2=2 6/2=3

3times 2 equals 6

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Find four numbers that form a geometric progression such that the third term is greater than the first by 12 and the fourth is g

olchik [2.2K]

If $x$ is the first number in the progression, and $r$ is the common ratio between consecutive terms, then the first four terms in the progression are

$\{x,xr,xr^2,xr^3\}$

We want to have

$\begin{cases}xr^2-x=12\\xr^3-xr=36\end{cases}$

In the second equation, we have

$xr^3-xr=xr(r^2-1)=36$

and in the first, we have

$xr^2-x=x(r^2-1)=12$

Substituting this into the second equation, we find

$xr(r^2-1)=12r=36\implies r=3$

So now we have

$\begin{cases}9x-x=12\\27x-3x=36\end{cases}\implies x=\dfrac32$

Then the four numbers are

$\left\{\dfrac32,\dfrac92,\dfrac{27}2,\dfrac{81}2\right\}$

4 0

2 years ago

Cassie took 2 quizzes last week. She scored the same in each quiz.

ololo11 [35]

Answer:

since her score was -12 from being perfect

if she had scored 12 more points her score would have been perfect .

that is difference between her score and the perfect score o each quiz was <u>12</u>

8 0

3 years ago

I need helping solving this

olchik [2.2K]

Answer: x= 5

Step-by-step explanation:

Plug the second equation into the first equation’s y.
3x-2(-2x+7)=21

Then use distribution

3x+4x-14=21

Add 4x and 3x

7x-14=21

Then add 14 to both sides

7x=35

Divide by 7 to get x

35/7=5

x=5

8 0

1 year ago

If f(x)=4^ then which of the following is the value of f(-2)?

vredina [299]

Answer:

Step-by-step explanation:

hello :

f(x)=4^x so : f(-2)=4^(-2) = 1/4^2 = 1/16

6 0

3 years ago

Find all sets of three consecutive positive even integers with a sum no greater than 36

Deffense [45]

Answer:

hdejdd

4hrh

heh

hrj

tiredjj

7 0

2 years ago