Answer:
13
Step-by-step explanation:
first term (a) = 8
last term ( ) = 56
sum (S) = 416
number of terms (n) = ?
equation
S = n/2 (a+)
416 = n/2 (8+56)
416 = n/2 (64)
416 = 32n
n = 416/32 = 13
Answer:
in the US, yes
in some other English-speaking countries, no
Step-by-step explanation:
"Standard form" depends on where you live. In the UK, the "standard form" of a quadratic equation is what is called "vertex form" in the US. That form is ...
3(x +1/3)^2 +29/3 = 0
In the US, the equation you show is in standard form.
Answer:
a) 1/2 of 12 = 1/4 of 24
b) 1/3 of 90 = 2/3 of 45
Step-by-step explanation:
1/2 of 16 is 6, so 6 would be 1/4 of what? 6 x 4 = 24. 6 is 1/4 of 24. The other one is the same. 1/3 of 90 is 30, and 30 is 2/3 of 45.
Answer:
17 + 23 = 40
23 - 17 = 6 the other person did it right.
<span>B. 2d^2+6d-7. Should be the correct answer.</span>
