Answer:
X = -3.4
I found that the answer should be -3.4 because I just did 11.7 - -8.3 which equals 3.4 so i just changed it so it would be a negative number.
Step-by-step explanation:
11.7 + -8.3 + -3.4
the answer is then 0 so x = -3.4
Answer:
m∡QPR = 25°
Step-by-step explanation:
solve for 'x':
8x + 7 + 9x + 16 = 40
17x + 23 = 40
17x = 17
x = 1
m∡QPR = 9(1) + 16
m∡QPR = 25°
We can assume that the point the ladder creates with the ground and building is a triangle. You can use the Pythagorean theorem to solve this.
A^2 + B^2 = C^2
The ladder is C, and the building can act as A or B, so for the purpose of this explanation, I’ll make it A.
11^2 + B^2 = 14^2
Figure out the squares
121 + B^2 = 196
Subtract 121 from both sides
B^2 = 75
Square root B^2 and 75
B = 5 root3

Solve it and you get 1/8 easy.