X=2
To check it you plug in 2 for x. Which then gives you:
3+(2-14)=-15+6 which then gives you:
3+-12=-15+6 which the gives you:
-9=-9
Answer:5 and -5
Step-by-step explanation:
There's not really any steps but absolute value is the number of spaces a numerical value is from 0 so 5 is 5 spaces away and -5 is also 5 spaces away -3 is 3 spaces away and 8 is 8 spaces away.
Answer:
a) 75.4 kg
b) 
Step-by-step explanation:
a) The ideal weight of a 6-foot (72 inches) male is given by simply applying h= 72 in to the expression:
b) Expressing height as a function of weight:
Verifying with W(h(W)):
Verifying with h(W(h):
Answer:
y = 8
x = 8√5
z = 4√5
Step-by-step explanation:
Using the formula (which is a geometric mean):
a y
---- = -----
x a
Where a is the altitude (y), x is a projection (16), and y is the other projection (4):
y 4
---- = -----
16 y
Cross multiply:
y² = 16 (4)
y² = 64
√y² = √64
y = 8
To find x and z, use the Pythagorean Theorem:
16² + y² = x²
256 + 8² = x²
256 + 64 = x²
320 = x²
√320 = √x²
√64√5 = √x²
8√5 = x
x = 8√5
4² + y² = z²
16 + 64 = z²
80 = z²
√80 = √z²
√16√5 = √z²
4√5 = z
z = 4√5
