(39-?) divided by 8 = 4

Answers

Answer 1

Answer: (39 - x) ÷ 8 = 4
Multiply by 8 on both sides
39 - x = 32
Subtract 39 from each side
- x = - 7
Divide by - 1 (when there is a negative variable)
x = 7

Answer 2

Answer: $(39-?) \ divided \ by \ 8 \ = \ 4 \n \n We \ know \ 32 \ divided \ by \ 8 \ = \ 4 \n \n 39-32=7 \n \n Answer:(39-32) \ divided \ by \ 8 \ = \ 4 \ or \ \boxed{?=7} \n$

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This is Algebra 2. help me

Answers

(4x^2-25)/(2x-5)=14
we hates fractions so m ultiply both sides by (2x-5)
4x^2-25=14(2x-5)
4x^2-25=28x-70
add 70 to both sides
4x^2+45=28x
subtract 28x fromoth sides
4x^2-28x+45=0
use quadratic formula which is
if you have
ax^2+bx+c=0 then
x= $\frac{-b+/- \sqrt{b^(2)-4ac} }{2a}$
a=4
b=-28
c=45
subsitute
x= $\frac{-(-28)+/- \sqrt{(-28)^(2)-4(4)(45)} }{2(4)}$
x= $(28+/- √(784-720) )/(8)$
x= $(28+/- 8)/(8)$
x= $(5)/(2)$ or $(9)/(2)$
if we were to put 5/2 for x, the deonomentor would be equal to zero, so it cannot be used

answer is
x=9/2

Omggg plsss help again

Answers

Answer:

The answer Is D

Step-by-step explanation:

The side that is similar is PQ. Have a good day

2. Evaluate the expression by substituting the given value(s):(y)2 +-3x2 - 92 for x = 8 and y = -3
a. -72
b. - 3x2 + y2 +(-81)
c. -264
d. 504

Answers

Answer:

is you answers because i did the math so u dont have to ;)

~please only answer if you know for sure~
-Thank you-

Answers

DF and AC are similar

and

BC and EF are similar sides

So make a proportion

$\sf{ (AC)/(DF) = (BC)/(EF) }$

Plug in the numbers

$\sf{ (9)/(DF) = (15)/(25) }$

Cross multiply

$\sf{DF * 15 = 9 * 25}$

Isolate DF and simplify it

$\sf{DF = 15}$

And so your final answer is

$\boxed{\bf{15 ~centimeters}}$

Need help quick!! Please explain how you got your answer.

Answers

Answer:

A. acute, scalene

Step-by-step explanation:

The angles are less than 90 degrees. Therefore, the triangle is acute. The sides are uneven. Therefore, the figure shown is a scalene triangle.

What's an equivalent fraction for 10 15 by dividing

Answers

the correct answer is two thirds

Well you can see that 10/15 are both divisible by 5 so 10/5 =2 and 15/5 =3 so it equals 2/3.

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