3. 3^10
4. 1/2 n^2
5. 1/n^3
6. 9r^3 / 5g^2
7. 10n / c^3
8. 3y^2 / g^2
Answer:
It's D.
Step-by-step explanation:
To find what decimal number a fraction is equal to, just divide the numerator (top number) by the denominator (bottom number).
Step-by-step explanation:
30x = 9(2x+6)
30x = 18x+54
30x-18x = 54
12x = 54
x = 54/12
= 27/6
Answer:
C. 20
Step-by-step explanation:
If 1 inch is 8 miles, 2.5 = 20 miles because 8 x 2 = 16 and .5 = 4 so 16+4 = 20
Answer:
x=4+√5 or x=4−√5
Step-by-step explanation:
Multiply both sides by x-4.
x2−8x+16=5
x2−8x+16−5=5−5(Subtract 5 from both sides)
x2−8x+11=0
For this equation: a=1, b=-8, c=11
1x2+−8x+11=0
x=
−b±√b2−4ac
2a
(Use quadratic formula with a=1, b=-8, c=11)
x=
−(−8)±√(−8)2−4(1)(11)
2(1)
x=
8±√20
2
x=4+√5 or x=4−√5
