10 is the missing number.
The answer is 7/5 th. You can add fractions without first having a common denominator so you would change the 8's by multiplying it by 5 to get 40 and you would multiply the 5 by 8 to get 40 as well. And the rule whatever you do to the bottom you have to do to the top so whatever you multiplied 8 by do the same for the numerator and whatever you multiplied 5 by you do the same for the numerator. So your new equation would be (75/40+16/40)+(-35/40). you would then add the numerator's across to get 56 and the denominator would stay the same so the answer is 56/40. But you have to now simplify 56/40 down to 14/10 and then once more to 7/5 which is the final answer.
Answer:
- 3 √10 × -2 √5 = 42 .9
Step-by-step explanation:
- 3 √10 × -2 √5
= ( -3) ( -2) × √10 × √5
= 6 √50
= 6 × 7.15
∴ - 3 √10 × -2 √5 = 6 × 7.15
= 42.9
so - 3 √10 × -2 √5 = 42 .9
Answer:
Stop being so desperate.
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
Given
x² - 7x + 12
Consider the factors of the constant term (+ 12) which sum to give the coefficient of the x- term (- 7)
The factors are - 4 and - 3, since
- 4 × - 3 = + 12 and - 4 - 3 = - 7, thus
x² - 7x + 12 = (x - 4)(x - 3) ← in factored form → D
