Answer:
Step-by-step explanation:
78.03
Answer: D
Step-by-step explanation:
5x6=30
Step-by-step explanation:
let's look at the full numbers under the square roots when bringing the external factors back in :
sqrt(9×9×2) - sqrt(3×3×7) + sqrt(8) - sqrt(28)
and let's present these numbers as the product of their basic prime factors
sqrt(3×3×3×3×2) - sqrt(3×3×7) + sqrt(2×2×2) - sqrt(2×2×7)
now we see that we have 2 pairs of square roots : 1 pair ends with a factor of 2, and one pair with a factor of 7.
let's combine these
sqrt (3×3×3×3×2) + sqrt(2×2×2) - sqrt(3×3×7) - sqrt (2×2×7)
and now we move the factors of 2 and 7 back out in front (of course, we need to apply the square root on these factors) :
9×sqrt(2) + 2×sqrt(2) - 3×sqrt(7) - 2×sqrt(7) =
= (9+2)×sqrt(2) - (3+2)×sqrt(7) = 11×sqrt(2) - 5×sqrt(7)
and that is the first answer option.
Answer:
simple interest :90
Step-by-step explanation:
Step 1: Multiply 450 with the interest rate which is 0.05 so that equal 22.5
Step 2: Multiply the 22.5 with the 4 years
So Multiply principal with the interest rate with the time
MAYBE
Answer:
1. 1.28
2. 55
3. +
Step-by-step explanation:
1. 0.043 x 10 {3}
= 0.043 x (10 x 3)
= 0.043 x 30
= <u>1.28</u>
2. 5 + (9) (6) - 4
= 5 + 9 x 6 - 4
= 5 + 54 - 4
= 59 - 4
= <u>55</u>
3. Which of the these operations should be completed last when solvingan equation?
a. x
b. +
c. ()
d.÷
<u>b. +</u>
