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pav-90 [236]
3 years ago
11

-11 -z evaluate the expression if x=-8 , y=7 , and z=-11

Mathematics
1 answer:
AlladinOne [14]3 years ago
6 0

Answer:

-8-(-11)-7

= -8+11-7

= 3-7

= -4

Step-by-step explanation:

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Does anyone know the answer to this question.....0.5x + 1.75 = 10
marysya [2.9K]

Answer:

x = 16.5

Step-by-step explanation:

0.5x + 1.75 = 10

Subtract 1.75 from both sides:

0.5x = 8.25

Divide both sides by 0.5

x = 16.5

Check your work!

0.5(16.5) + 1.75 = 10

8.25 + 1.75 = 10

10 = 10

x = 16.5

3 0
3 years ago
A. Find the length of the midsegment of an equilateral triangle with side lengths of 12.5 cm.
pantera1 [17]

Answer:

  • a. 6.25
  • b. AT = 33
  • c. y = 3

Step-by-step explanation:

a. <u>Midsegment is half the length of the parallel side:</u>

  • 12.5/2 = 6.25

b. <u>Segment addition postulate:</u>

  • AB = AT + TB = 3x + 6 + 42 - x = 2x + 48

<u>Perpendicular bisector of segment divides the segment in two equal halves:</u>

  • AT = TB
  • 3x + 6 = 42 - x
  • 4x = 36
  • x = 9

<u>AT is:</u>

  • AT = 3*9 + 6
  •      = 33

c) <u>The point on the angle bisector H is equidistant from the point E and G</u>:

  • EH = HG
  • 5y + 10 = 28 - y
  • 5y + y = 28 - 10
  • 6y = 18
  • y = 3
5 0
3 years ago
Whats the answer to -6 = 3/2z​
Sergeeva-Olga [200]

Answer:

Step-by-step explanation:

-6=3/2z

-12z=3

z=-4

7 0
3 years ago
Suppose that you are asked to find a quadratic regression to model the height of a ball above the ground after it has been throw
Bogdan [553]
The y-intercept would represent the highest point. The graph will show a parabola and this point will only be reached once.

The x-intercept would be the starting point and the ending point. You can find total distance traveled with this.
7 0
3 years ago
Determine the equation of a circle whose diameter has the endpoints (-1, 2) and (7.
Viefleur [7K]

Answer:

(x - 3)^2 + (y + 1) = 25

Step-by-step explanation:

First find the midpoint of the diameter, because that represents the center of the circle.

                                                                     -1 + 7

The x-coordinate of the midpoint is xm = ---------- = 3

                                                                          2

                                                 2 - 4

and the y-coordinate is ym = ---------- = -1

                                                     2

And so the center of this circle is at (3, -1).

Use the Pythagorean Theorem to determine the square of the radius:

square of radius = 4^2 + (-3)^2 = 16 + 9 = 25

And so the equation of this circle is (x - 3)^2 + (y + 1) = 25

5 0
3 years ago
Read 2 more answers
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