Answer:
- 63 ft²
- h = 2A/b; h = 7 ft
Step-by-step explanation:
1. Put the values where the variables are in the formula, then do the arithmetic.
... A = (1/2)bh = (1/2)(18 ft)(7 ft) = 63 ft²
2. Divide by the coefficient of h. Substitute the given values and do the arithmetic.
... A = (1/2)bh
The coefficient of h is b/2, so we divide by that—or multiply by its inverse, 2/b.
... 2A/b = h
Substituting the given numbers, you have ...
... 2(28 ft²)/(8 ft) = h = 7 ft
The height of the triangle is 7 ft.
Because the distribution (normal) is symmetric, you know that
, so
Now,
If
is the CDF of the normal distribution, so that
, then the z-score satisfies
so that
.
Answer:
12 & 18
Explanation:
My Asian friend Ryen, actually just told me answer,so there you go.
Or, 6x2=12
and 6x3=18
That works too
Answer:
point-slope form:
y - 10 = -4(x - -2)
y - 10 = -4(x + 2)
---
slope-intercept form:
y - 10 = -4x - 8
y = -4x - 8 + 10
y = -4x + 2
Step-by-step explanation:
