Answer:
1. 125
2. 25
3. 40
4. 39
First question:
(15-10)^2 + (15-5)^2
parentheses first to get 5^2 + (15-5)^2
exponents next to get 25 + (15-5)^2
parentheses again 25 + 10^2
exponents again 25 + 100 = 125
Second question:
simplify the exponents (3 *3) + (4 * 4) + (2 * 2) to get 9 + 16 + 4 = 29
Third question:
simplify in the parentheses 6 1/7 - 1/7 = 6
divide 60 by 6 to get 10
multiply 10 by 4 to get 40!
Fourth question:
simplify the fractions to get 1/3 + 8/3 = 3
multiply the 3 by 13 to get 39
Answer:
(D). 28
Step-by-step explanation:
We have been given that the smallest integer that can be divided by the product of a prime number and 7 while yielding a prime number.
We know that smallest prime is 2. The product of 2 and 7 is 14.
Let us divide our given numbers by 14.
(A) 7.

The quotient is not a integer or prime number.
(B). 14

We know that 1 is not a prime number.
(C) 24.

The quotient is not a integer or prime number.
(D). 28

Since 2 is a prime number, therefore, 28 is the smallest integer that can be divided by the product of a prime number and 7 and yield a prime number.
3.14x16 or 50.24 is the answer
..............
Answer:
10
Step-by-step explanation:
6-(-12)/3
= 6-(-4)
= 6+4
= 10
Hope this helps!
Answer:
A. 215x + 780 = 2500
Step-by-step explanation:
Multiply both sides of the equation by 100 to eliminate the decimal fractions.
(2.15×100)x + 7.8×100 = 25×100
215x + 780 = 2500