3 years ago

Helpppppppppppppppppppppppp

Mathematics

1 answer:

stepladder [879]3 years ago

7 0

the answer is b i did the math it checks out

You might be interested in

Two random samples were taken to determine how often people in a community listen to the local radio station each month.

tangare [24]

I do not get what the Question that you are asking is.

4 0

2 years ago

Find a + b, 2a + 3b, |a|, and |a − b|. a = 4i + j, b = i − 2j

bogdanovich [222]

Add the component i apart and the compents j apart

4 0

3 years ago

13.

dusya [7]

Answer:

B - x=5

Step-by-step explanation:

If y=25 is 250% more than y=10, so multiply 2 by 250% and you get 5

4 0

2 years ago

PQ=11 and QR =10 what is PR

a_sh-v [17]

Step-by-step explanation:

I have no idea good luck love

6 0

2 years ago

Devon made a box with length x+1, width x+3, and height x-3. What is the volume of Devon's box as a function of x?

erica [24]

Answer:

(a)

$V=x^3+x^2-9x-9$

(b)

$x=10$

(c)

$x=\frac{7}{2}$

Step-by-step explanation:

we are given

length is x+1

$L=x+1$

width is x+3

$W=x+3$

height is x-3

$H=x-3$

(a)

we can use volume formula

$V=L\times W\times H$

now, we can plug it

$V=(x+1)\times (x+3)\times (x-3)$

now, we can simplify it

$V=x^3+x^2-9x-9$

(b)

we are given volume =1001

so, we can set V=1001

and then we can solve for x

$V=x^3+x^2-9x-9=1001$

now, we can factor it

$\left(x-10\right)\left(x^2+11x+101\right)=0$

$x-10=0$

$x=10$

(b)

we are given volume

so, we can set

$V=14\frac{5}{8}=\frac{14\times 8+5}{8}$

$V=\frac{117}{8}$

and then we can solve for x

$V=x^3+x^2-9x-9=\frac{117}{8}$

now, we can factor it

$8x^3+8x^2-72x-189=0$

$\left(2x-7\right)\left(4x^2+18x+27\right)=0$

$2x-7=0$

$x=\frac{7}{2}$

8 0

3 years ago