Answer:
21
Step-by-step explanation:
x2 + 3.4y, when x = 2, y = 5
(2)2+3.4(5)
2×2+3.4×5
4+5×3.4
4+17
21
Hope it helps! :)
I hope this helps you
(-2x^2). (-5x^2)+(-2x^2)(4x^3)
10x^4-8x^5
If base is x
congruent side = 2x-8
perimeter=2 congruent sides +base
2(2x-8)+x=74
4x-16+x=74
5x=58
x=11.6
length of the base is 11.6 inches
Answer:
a = sqrt(c^2 - b^2)
see image.
Step-by-step explanation:
If you square both sides of the equation, you get the Pythagorean Theorem back again.
c = sqrt(a^2 + b^2)
c^2 = a^2 + b^2
Solve for a means to get a all by itself on one side of the equation. Subtract b^2 and then take the square root. See image.
3x+4x=2
You add 3x and 4x which gets you 7x
7x=2
You divide both sides of the equation by 7
x=2/7
This will be your result