All categories

3 years ago

can someone show me step by step this one too? it says I have to solve for the indicated variable plz help

Mathematics

1 answer:

bearhunter [10]3 years ago

5 0

(a/b)=c
first multiply both sides by b
b*(a/b)=c*b
this cancels out the b under the a
a=cb
Then divide by c
a/c=(cb)/c
this cancels the c and leaves b by itself
b=(a/c)

You might be interested in

Someone please help me with this math problem! :(

Assoli18 [71]

Area of a parallelogram=base x heigth
Data:
base=(2x+3)
heigth=(ax+5)
area of this parallelogram=8x²+bx+15

Therefore:
8x²+bx+15=(2x+3)(ax+5)
8x²+bx+15=2ax²+10x+3ax+15
8x²+bx+15=2ax²+(10+3a)x+15

Then:
8x²=2ax²
a=(8x²)/(2x²)=4

bx=(10+3(4))x
bx=(10+12)x
b=22x/x=22

Answer: a=4 and b=22.

5 0

3 years ago

Read 2 more answers

I have to write on this question what do I put?

Genrish500 [490]

Answer: 1. Given

2. Corresponding angles

3. Alternate interior angles theorem

4.Corresponding angles

5.Alternate exterior angles

8 0

3 years ago

John is choosing a password for an account. He has decided not to use the digit 0 or the letter m. And each letter or number can

kap26 [50]

<em>If this guy doesn't use the letter m, then the first and second characters of the password could be any of the 25 remaining letters. So, the number of possible combinations of 2 letters is 25 times 25, or 625.

If he doesn't use the digit 0, how many digits are left to choose from?

The first 2 characters of the password will be letters; after that there come four digits. How many different combinations of 4 digits are there if 0 is not used?

To obtain the final result, mult. together that 625 and the number of possible combinations of digits just found above.</em>

4 0

4 years ago

What is the volume of the cone ?

sleet_krkn [62]

${210in}^{3}$

This is found by the volume of a cone formula

$b \times \frac{h}{3}$

Where b is the base and h is the height

$45 \times \frac{14}{3} = \frac{630}{210} = 210$

5 0

3 years ago

lianna [129]

Answer:

D. y = 3/5x + 13/5

Step-by-step explanation:

The slope of the desired line is the ratio of the difference in y-values to the difference in x-values:

m = Δy/Δx = (2 -5)/(-1 -4) = -3/-5 = 3/5 . . . . . . eliminates choices B and C

The slope-intercept equation will then be ...

y = mx + b . . . . . . . generic slope-intercept form

y = 3/5x + b . . . . . . put in m; true for some b that puts the given points on the line

Using the first point, we have ...

5 = 3/5×4 + b

25/5 = 12/5 + b

13/5 = b . . . . . . . . . subtract 12/5

Then the equation is ...

y = 3/5x + 13/5

_____

You know as soon as you consider putting a point value in the equation ...

y = 3/5x + b

that the equation of choice A cannot work. That only leaves choice D.

8 0

4 years ago