Answer:
A) 34x²
Step-by-step explanation:
6x * 7x = 42x²
2x * 4x = 8x²
42x - 8 x = 34x²
Answer:
5.625
Step-by-step explanation:
So first do 112 / 360
Simplify it = 28 / 90 = 14 / 45
So 1.75 is 14 / 45 of the circumference.
The whole circumference is 1.75 * (45 / 14)
So the answer is 45 / 8 = 5.625
Answer: 0.3m/s
Step-by-step explanation:
Height/ velocity
3m/12m per sec
Time= 0.25metres per seconds
To the nearest tenth, 0.3m per seconds
Answer:
73
Step-by-step explanation:
let the number = X
If 139 is added, it becomes= X +139
the result becomes 44less than four time the number
= 4(39)-44 = 156-44 =112
the set up equation becomes
X +39 = 112
solving for the value of X
X = 112-39
X = 73
Answer:
79 units²
Step-by-step explanation:
The area of a circle is found by using the formula A = π x r². Since we are not given the radius we can use the formula r = C / (2π). Substituting in the given values, we get r = 31.5/(2π). 2 times pi is 6.283185307. 31.5 divided by this will get you 5.013380707. Now, put that value in for r in the area equation. A = π x 5.013380707². Pi times 5.013380707² equals 78.96074613. This can be rounded to 79. (Or 80 if you need to the nearest whole number.)
