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IrinaVladis [17]
3 years ago
10

How do I set up this equation and solve ?

Mathematics
1 answer:
vovangra [49]3 years ago
4 0

angles in a triangle need to equal 180 degrees

 so x = 180 - 47 - 58

x = 180-105

 x= 75 degrees

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I need help with this please. Thanks!
den301095 [7]

Answer:

-1

Step-by-step explanation:

2.5 - 3.5x = 8 - 4x - 6

0.5x = 2 - 2.5

0.5x = -0.5

x = -1

3 0
2 years ago
Complete the square to rewrite the following equation. Identify the center and radius of the circle. You must show all work and
Sliva [168]

Answer:

( x+1)^2  + (y+2)^2 = 25

The center is (-1, -2) and the radius is 5

Step-by-step explanation:

x^2 + 2x + y^2 + 4y = 20

Complete the square

2/2 =1  1^2 =1  so add 1 for x     4/2 =2  2^2 = 4 so add 4 for y

x^2 +2x +1   +y^2 +4y+4 = 20 +1 +4

( x+1)^2  + (y+2)^2 = 25

(x+1) ^2 + (y+2)^2 = 5^2

(x - -1) ^2 + (y -  -2)^2 = 5^2

This is in (x-h)^2 + (y-k)^2 = r^2 form where (h,k) is the center and r is the radius

The center is (-1, -2) and the radius is 5

4 0
3 years ago
explain how you can rename 5,400 as hundreds. include a quick picture or a place value chart in your explanation
Dvinal [7]
Noooooo. im not gonna do eet!!!
8 0
3 years ago
If parallelogram abcd was reflected over the y-axis, reflected over the x-axis, and rotated 180 degrees, where would point a' li
stiks02 [169]
Start point A = (-4, 1) over y, A = (4,1) over x, A = (4, -1) rotated 180 degrees.
7 0
2 years ago
Help me, save me!!!!!!!!
Anni [7]

Answer:

D

Step-by-step explanation:

Open circle means less than or greater than, and the dot is on -5, so the answer is greater than -5

5 0
3 years ago
Read 2 more answers
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