First you must have the quadratic equal to zero. In order to do this you must subtract 7 to both sides
x^2 + 20x + (100 - 7) = 7 - 7
x^2 + 20x + 93 = 0
Now you must find two numbers who's sum equals 20 and their multiplication equal 93
Are there any? NO!
This means that you have to use the formula:
In this case:
a = 1
b = 20
c = 93
^^^We must simplify √28
√28 = 2√7
so...
simplify further:
-10 + √7
or
-10 - √7
***plus/minus = ±
Hope this helped!
~Just a girl in love with Shawn Mendes
Answer:
m∠C = 108°
Step-by-step explanation:
The sum of the interior angles of a pentagon is 540°. Divide this sum by the number of angles to find the degrees of each one:
540/5 = 108
Answer:
тнє αиѕωєя ιѕ: 4 ρєиѕ ιи 1 вσχ
Step-by-step explanation:
вє¢αυѕє ιf тнєιя ιѕ 16 ρєиѕ ιи 4 вσχєѕ αℓℓ уσυ иєє∂ тσ ∂σ ιѕ ∂ινι∂є∂ 16 ву 4 ωнι¢н єqυαℓѕ 4.
16/4=4
4*4=16
нσρє ι ¢συℓ∂ нєℓρ уσυ συт!!!!!!!!!!!!
Answer: your answer will be (b) 0
hope it helps