Answer:
37, 38, and 39
Step-by-step explanation:
Write the equation by converting words into math symbols:
- consecutive means n, n+1, and n+2
- subtract -
- product *
- result is =
This means "the product of the smaller two" is n(n+1).
This also means "the product of the greater two" is (n+1)(n+2)
They are subtracted from each other and equal to 76. So it becomes
(n+1)(n+2) - n(n+1) = 76
Write and solve:
The smallest number is 37. The next is 38. The last is 39.
Answer:
- 9, - 5, - 1
Step-by-step explanation:
Calculate the mean of 3 and - 13, that is
= = - 5
That is
- 13, - 5, 3
Now find the mean of - 13 and - 5, and - 5 and 3
= = - 9
= = - 1
Thus
- 13, - 9, - 5, - 1, 3
Answer:
a₁ = 10
Step-by-step explanation:
The common difference d is calculated as
d = a₃ - a₂ = - 20 - (- 5) = - 20 + 5 = - 15
Then
a₂ - a₁ = d , that is
- 5 - a₁ = - 15 ( add 5 to both sides )
- a₁ = - 10 ( multiply both sides by - 1 )
a₁ = 10
Answer: B
Step-by-step explanation:
When you factor an expression, you want to take out a factor of the numbers and variables.
Since this expression is a bit hard to factor as itself, we can FOIL the answers to see the correct expressions.
(4x-5)(4x-5)
16x²-20x-20x+25
16x²-40x+25
Answer: kindly check explanation
Step-by-step explanation:
Given the following statements :
A.) To find 49 times 73. I multiply 73 times 50 and take off one group of 73
To obtain the product of (49 and 73)
(73 * 50) - 73
3650 - 73
= 3577
B.) To find 15 times 16, I double 15 and halve 16 and then multiply
Double 15 = (15 * 2) = 30
Halve 16 = (16 / 2) = 8 ;
Then multiply:
(30 * 8) = 240
Similarly ;
(15 × 2) × (16 / 2) = 240