Answer:
22
Step-by-step explanation:
This is a right angle so the sum of those would be equal to 90 degrees
x + 7 + 3x - 5 = 90 add like terms
4x + 2 = 90 subtract 2 from both sides
4x = 88 divide both sides by 4
x = 22
Answer:
d) 87
Step-by-step explanation:
to solve this lets set up the equation
![\frac{85+70+98+x}{4} =85\\\frac{253+x}{4} =85](https://tex.z-dn.net/?f=%5Cfrac%7B85%2B70%2B98%2Bx%7D%7B4%7D%20%3D85%5C%5C%5Cfrac%7B253%2Bx%7D%7B4%7D%20%3D85)
then we multiply 4 on both sides
253+x=340
and subtract 253 on both sides
x=87
to double check take the averages
(87+85+70+98)/4=85
Answer:
1/2+2x or 1/2+2+x
Step-by-step explanation:
i don't know but this what i think i hope this helps
Hello,
Let y=sin^(-1)(12/13.
==>sin y=12/13
==>cos y=√(1-(12/13)²)=√(25/169)=5/13
Answer 5/13
Answer:
y=-3.667
x=
Step-by-step explanation:
-4(10y-59)+10y=86
30y+196=86
30y=-110
y=-3.667