Answer:
50=2(10+w)
Step-by-step explanation:
We know that perimeter is equal to the sides of a shape
A rectangle has two of the same length and two of the same width
P=2l+2w
We know the perimeter and length so plug that in and solve for w
50=2(10)+2w
50=2(10+w) - That matches answer choice D
30=2w
w=15
Answer:
129° and 37°
Step-by-step explanation:
The external angle of a triangle is equal to the sum of the 2 opposite interior angles.
(a)
∠ 1 is an exterior angle, thus
∠ 1 = 62° + 67° = 129°
(b)
∠ 1 + 115° = 152° ( subtract 115° from both sides )
∠ 1 = 37°
Any singular matrix (a matrix with zero determinant) has no inverse.
Answer:
20%
Step-by-step explanation:
16/80= ?/100
16 times 100 is 1600
1600 divided by 80 is 20%
hope this helps
Answer:
Mean = 5
Variance = 8.3521
Standard Deviation = 2.89
Step-by-step explanation:
X has the uniform distribution on [a, b]
[a, b] = [a, 10]
Mean is solved using (a + b)/2
Standard Deviation = 
Standard Deviation =
Variance = 
Variance = 
