<h3>
Answer: 10.7</h3>
Work Shown:
5 times 2 = 10
5 times 13 = 65
5 times 2.13 = 10.65
This rounds to <u>10.7</u> when rounding to the nearest tenth, i.e. one decimal place.
Answer:C 2.0< t < 2.50
Step-by-step explanation:
Diameter of circular lake = 2 miles
Radius of the circular lake= 1 mile
Circumference of the circular lake = 2 pi
Speed of Joanna = 3mph
Time t= distance/ speed = circumference of lake / speed
t = 2 pi/ 3 = (2 × 3.142) / 3
t = 6.284/3 = 2.09
This is greater than 2 but less than 2.5, therefore statement C is correct
Answer:
This is a ratio problem
Since we know 4.75 inches equals 75 miles, we can find what small unit of a inch correlates to 75 miles, and then use that data to find the other answer. To do this, we divide 75 miles by 4.75 inches. We get 16 as an estimate (15.789 to 16). Knowing this, we can multiply 16 to 6.25 and get 100 miles. 100 miles is the answer
A = (1/2)base*height
Since this is an equilateral triangle each side is 34 inches, the altitude bisects the base into two 17 inch segments
There is now a right triangle with a base of 17 inches and a hypotenuse of 34 inches, so the pythagorean theorem (a^2 + b^2 = c^2) can be used
17^2 + b^2 = 34^2
or b^2 = 34^2 - 17^2
b^2 = 867 (take the square root of both sides)
b = 17
so the height of the equilateral triangle is 17
A = (1/2)(34)(17
)
A = 500.56 square inches