Pythagorean Theorem: a^2+b^2=c^2
(9)^2 + b^2 = (23)^2
81 + b^2 = 529
b^2 = 529 - 81
b^2 = 448
b^2 =

b = 21.2
Answer:
w = ±![\sqrt[4]{36/5}](https://tex.z-dn.net/?f=%5Csqrt%5B4%5D%7B36%2F5%7D)
Step-by-step explanation:
-8+5w^4=28
You can regroup it:
5w^4 - 8 = 28
Add 8 to both side:
5w^4 = 28 + 8
5w^4 = 36
Divide both side by 5:
5w^4/5 = 36/5
w^4 = 36/5
Take the 4 root of both sides:
w = ±![\sqrt[4]{36/5}](https://tex.z-dn.net/?f=%5Csqrt%5B4%5D%7B36%2F5%7D)
Hope this help you :3
Answer:
y = 13
Step-by-step explanation:
An exponential function has the form
y = a 
To find a and b use the given points
Using (0, 13), then
13 = a
, since
= 1, then
a = 13, thus
y = 13 
using (2, 325) , then
325 = 13 b² ( divide both sides by 13 )
25 = b² ( take the square root of both sides )
5 = b
y = 13 ×
← is the exponential function
Answer:
x + 4 = 7
Step-by-step explanation:
you solve -2x + 8 = 2 to get x = 3
plug 3 into the other equation and you get the answer
Answer:
C) 68 cm
Step-by-step explanation:
Egyptian triangle - 3 4 5
85/5 = 17
51/3 = 17
4 times 17 = 68
51 68 85