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ycow [4]
3 years ago
9

PLEASE HELP!! WILL MARK BRAINLIEST AND THANK YOU!! What is value of x.

Mathematics
2 answers:
makkiz [27]3 years ago
7 0

Answer:

x = 111

Step-by-step explanation:

126+158+120+125+121+139 = 789

900-789 = 111

(n-2)*180

5*180 = 900

denis23 [38]3 years ago
6 0

Answer:

x = 111

Step-by-step explanation:

126+158+120+125+121+139 = 789

900-789 = 111

(n-2)*180

5*180 = 900

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Translate the algebraic expression and simplify if possible.
tamaranim1 [39]
-2/(a+b)
Explanation: you are dividing negative two by the sum of a and b so you would put a+b in parentheses as the denominator and then put -2 as the numerator
4 0
2 years ago
Y=x2+8x+10. complete the square
Rasek [7]
Y=10x+10
add the like terms together
8 0
2 years ago
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Can you please solve ax+z=w-y for a please???​
Varvara68 [4.7K]

Answer:

ax + z = w - y \\ ax = w - y - z \\ a =  \frac{w - y - z}{x}  \\ thank \: you \:

3 0
2 years ago
Please ' help me I need it please I'm begging you
vazorg [7]

Answer: 0.75 (choice B)

=============================================

Explanation:

One way to set up the equation is to think of it like this

vertical/horizontal = vertical/horizontal

So we could say

(3.5)/(28) = x/6

Cross multiply and solve for x

3.5*6 = 28*x

21 = 28x

x = 21/28

x = (3*7)/(4*7)

x = 3/4 in fraction form

x = 0.75 in decimal form

-------------

Another possible set up equation is

28/6 = (3.5)/x

in this case I divided the horizontal sides together (28 and 6) and the vertical sides divide to form their own separate fraction as well.

Solving that equation should lead you to x = 3/4 = 0.75

Other equations are possible.

8 0
2 years ago
What are the solution(s) of x squared minus 4 = 0? x = negative 4 or x = 4 x = negative 2 or x = 2 x = 2 x = 4
frosja888 [35]

Answer:

Step-by-step explanation:

The expression is

x^2 - 4

This is a quadratic expression.

To find the solution, we will equate the the expression to zero. It becomes

x^2 - 4 = 0

Add 4 to the left hand side of the equation and the right hand side of the equation. It becomes.

x^2 - 4 + 4 = 0 + 4

x^2 = 4

Take square root of the right hand side of the equation and left hand side of the equation. It becomes

√x^2 = √4

x = ± 2

x = 2 or x = - 2

7 0
3 years ago
Read 2 more answers
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