2 years ago

Solve for x. 8/x-7=7/2

Mathematics

2 answers:

zloy xaker [14]2 years ago

6 0

X= 9 2/7 ( the first answer is correct )

ad-work [718]2 years ago

3 0

The answer is the first one= 9 2/7

You might be interested in

Find an equation in standard form of the parabola passing through the points (1, -2), (2,-2), (3,-4)

Yuliya22 [10]

The standard form of a parabola is y=ax²+bx+c
use the three given points to find the three unknown constants a, b, and c:
-2=a+b+c............1
-2=4a+2b+c......... 2
-4=9a+3b+c...........3
equation 2 minus equation 1: 3a+b=0..........4
equation 3 minus equation 2: 5a+b=-2.........5
equation 5 minus equation 4: 2a=-2, so a=-1
plug a=-1 in equation 4: -3+b=0, so b=3
Plug a=-1, b=3 in equation 1: -2=-1+3+c, so c=-4
the parabola is y=-x²+3x-4

double check: when x=1, y=-1+3-4=-2
when x=2, y=-4+6-4=-2
when x=3, y=-9+9-4=-4
Yes.

8 0

2 years ago

.933333333 repeative as a fraction

Tanya [424]

Well if it is a number like .933333333 you will have to round it, So now it is .93 and .93 in a fraction is 93/100

7 0

2 years ago

It's question B as I've done A please help

Hatshy [7]

Its easy.use cos rule.

4 0

2 years ago

The formula for the volume of w sphere is v=4\3 r3 what is the formula solved for r?

Lyrx [107]

V of w sphere = $\frac{4}{3}$ $\pi$ r³
Multiply by 3 on either sides to get rid of the fraction.
$V * 3 = \frac{4}{3} *3 \pi r^3$
3V = 4 $\pi$ r³
Now divide either sides by 4 $\pi$ to isolate r³
$\frac{3V}{4 \pi } = \frac{4 \pi }{4 \pi }$ r³
4 $\pi$ and 4 $\pi$ cancels out
$\frac{3V}{4 \pi }$ = r³
Take the cube root to isolate r.
$\sqrt[3]{ \frac{3V}{4 \pi } } = \sqrt[3]{r^3}$
the cube root cancels the cube

$\sqrt[3]{ \frac{3V}{4 \pi } }$ = r

6 0

2 years ago

30 points Help ASAP How do division properties help you evaluate expressions? Drag a word or number to the box to correctly comp

yKpoI14uk [10]

Answer:

Numerator , 0

Anything divided by 0 is always 0

Brainliest Pls

3 0

2 years ago