5x^2 - 5 = -17

First add 5 to both sides:

5x^2 = -12

Now, divide by 5

x^2 = -12/5

Take the square root of both sides

x = sqrt -12/5

Because there can't be a square root of a negative number, your answer is:

x = sqrt -12/5 * i

Hope this helps!

4 0

3 years ago

What is the length of seg AZ if A is between Y and Z, YA = 24, AZ = 15x, and<br> YZ = 189 ?

nika2105 [10]

Answer:

YA+AZ=YZ

24+15x=189

15x=189-24

15x=165

x=165/15=11

AZ=15x=165

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

The top of a ladder is leaning on a building at a point 12 feet above the ground.The bottom of the ladder is 5 feet from the bas

oee [108]

Answer:

Step-by-step explanation:

using c^2 = a^2 + b^2

whereas c is the length of the ladder

a is the top of the ladder

b is the distance from building

so c^2 = 12^2 + 5^2 = 144 + 25 = 169

c = 13

7 0

2 years ago

Find the measure of angle A

blagie [28]

Answer:

43°

Step-by-step explanation:

(x + 53)° + (x + 74)° + 73° = 180°

(x + 53 + x + 74)° = 180° - 73°

(2x + 127)° = 107°

2x + 127 = 107

2x = 107 - 127

2x = - 20

x = - 20/2

x = - 10

$m\angle A = (x +53)\degree \\\\m\angle A = (-10 +53)\degree \\\\m\angle A = 43\degree \\\\$

4 0

3 years ago