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Anettt [7]
3 years ago
8

Evaluate 2/4 _ 8z + 2 (z - 5)

Mathematics
1 answer:
SIZIF [17.4K]3 years ago
6 0
Let's see....

Let's first simplify step-by-step.

2/4 - 8z + 2(2-5)

= 1/2 + - 8z + -6

Combine Like Terms:

= 1/2 + -6

= (- 8z) + (1/2 + -6)

=(- 8z) + (1/2 + -6)

= - 8z + -11/2
___________________________________

Our answer:

= - 8z + -11/2

Hope This Helps!!!!!!!!
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10
natka813 [3]

Answer:

x= -8 , y = 5

x= 25/4 , y = 1/4

Step-by-step explanation:

substitute first eqn into the second eqn:

(7 - 3y)^2 -y^2 = 39

49 - 42y + 9y^2 - y^2 = 39

8y^2 - 42y +10 =0

4y^2 - 21y + 5 = 0

(4y-1) (y-5) = 0

y= 1/4 , 5

when y=1/4

x = 7- 3/4

=25/4

when y= 5

x = 7- 15

= -8

5 0
3 years ago
Read 2 more answers
I need help ASAP anyone
Lilit [14]

Answer:

12%

Step-by-step explanation:

I = Prt

r = I/Pt

r = 792 / 2200(3)

r = 0.12

3 0
3 years ago
Write 2.385 as a fraction or mixed number in simplest form.
never [62]
2.385 can be written as 2385/1000, which is equivalent to 477/200. As a mixed number it is writte as 2 77/200. Hope I helped!
5 0
3 years ago
What are the coordinates of the x-intercept of the graph?
alex41 [277]

Answer:

d. (9, 0)

Step-by-step explanation:

(x, y) so...

Where the line crosses the x-plane, x = 9

Since this is the x-intercept y will always equal zero

Therfore x-int = (9, 0)

6 0
2 years ago
How do I find the x and the y
mart [117]

Answer:

x = 22

y = 35

Step-by-step explanation:

Because its an isosceles triangle, you know the base angles are equal so:

3x - 11 = 2x + 11

Solving:

subtract 2x from both sides

x-11=11

add 11 to both sides

x = 22

Next, find the angle measures of the two base angles:

3*22-11\\66-11\\55

To find y, you know that the interior angles of the whole triangle add up to 180, so you have

55 + 55 + 2y = 180

solving,

110 + 2y = 180

subtract 110 from both sides

2y = 70

divide both sides by 2

y = 35

3 0
3 years ago
Read 2 more answers
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