Answer:
C.
Step-by-step explanation:
x is bisecting the baseline (cutting it in 2 halves of 6).
the third angle in the main overall triangle is 60 degrees.
remember, all angles in a triangle always add up to 180 degrees.
so, 180 - 60 - 60 = 60.
that means that all 3 angles are of equal size (60). and that means that all 3 sides must have the same length.
=> y = 12
and now using Pythagoras to calculate the height (x) of the triangle :
y² = x² + 6² (remember, this side is only half the baseline)
12² = x² + 6²
144 = x² + 36
x² = 108
x = sqrt(108) = sqrt(36×3) = 6×sqrt(3)
Answer:
Step-by-step explanation:
3,500 calories = 1 lb, so to loose 3 lbs
3,500 x 3 = 10,500
10,500 divided by 100 = 105 minutes
105 minutes, or 1.75 hours
Hope this helps ;/
C, D, and E would all be Statistical Questions.
Answer:
Between 1991 and 2013, the infant mortality rate in the United States declined from 8.943% to 5.708 %
Step-by-step explanation:
From the information given:
The number of infant deaths under 1 year in the United States during 1991 = 36,766
The number of live births during 1991 = 4,111,000
Infant mortality rate in 1991 = 8.943%
From the data of year 2013 in the United States Record, 23,446 infants died under one year
Infant mortality rate in 1993 = 5.708 %
Between 1991 and 2013, the infant mortality rate in the United States declined from 8.943% to 5.708 % which is approximately 3%
The answer would be the commutative property of multiplication, which from the answer choices provided I assume would be option b.
