Answer:
Step-by-4vttbrbwtetbb4tbtb44tny4ny4nyn4tbryn4y
step explanation:
Answer:
The bottom right option.
Step-by-step explanation:
Answer:
x = -7
Step-by-step explanation:
sum of interior angles in any triangle 180°
84 + 59 + 51 = 194
180 - 194 = -14
14 ÷ 2 = -7 x = -7
<u>check</u>
-7 + 59 = 52
-7 + 51 = 44
84 + 52 + 44 = 180
Answer:
We will add 3 to each side of the equation
Step-by-step explanation:
x^2 − 8x + 13 = 0
We want to complete the square
We will subtract 13 from each side of the equation
x^2 -8x +13 -13 = 0 -13
x^2 -8x = -13
Then take the coefficient of x
-8
Divide by 2
-8/2 = -4
Square it
(-4)^2 = 16
Add this to each side
x^2 -8x +16 = -13+16
( x-4) ^2 = 3
The sum of subtracting 13 and adding 16 is adding 3
<h3>
Answer: 29 miles (approximate)</h3>
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Explanation:
Segment AB is already given to be 19 miles long.
I'm assuming your teacher meant to ask about side BC, which is side 'a' since it's opposite angle A.
Use the law of cosines to find the missing side
a^2 = b^2 + c^2 - 2*b*c*cos(A)
a^2 = 12^2 + 19^2 - 2*12*19*cos(138)
a^2 = 843.874040417691
a = sqrt(843.874040417691)
a = 29.0495101579647
a = 29 when rounding to the nearest whole number
Side BC is roughly 29 miles long.
