8 ÷ (2/3)
Divide 2/3 first, because it's in the parenthesis.
Divide 8 by the product of 2/3 = 12.
For section 3.01 black, number 1 is correct, but number 2 is wrong.
When you raise an exponent to an exponent, you multiply the 2 exponents.
(x^4)^5 is x^20.
Number 3 is also right.
For 3.02, you use the interest formula. (1 + i/100)^t times x
x is the amount of money you have originally. i is the interest rate, t is the time.
1,500(1.03)^5 = 1738.91111145
$1738.91
For section 3.01 red in fractional exponents the numerator are the powers and the denominator is the root.
Answer:
f(-3)=5x^2+5x*3
-f*3=5x^2+5*3x
-3f=5x^2+15x
f=-5x(x+3)/3
f(-9)=5x^2+5x*3
-f*9=5x^2+5*3x
-9f=5x^2+15x
f=-5x(x+3)/9
Step-by-step explanation:
hope it helps you?
If you would like to simplify <span>-4 * (7x - 3y - z) - 6 - (-6) * (9x - z + 2), you can do this using the following steps:
</span>-4 * (7x - 3y - z) - 6 - (-6) * (9x - z + 2<span>) = -4 * 7x + 4 * 3y + 4z - 6 - (-6 * 9x + 6z - 6 * 2) = -28x + 12y + 4z - 6 - (-54x + 6z - 12) = </span>-28x + 12y + 4z - 6 + 54x - 6z + 12 = <span>-28x + 54x + 12y + 4z - 6z + 12 - 6 = 26x + 12y - 2z + 6
</span>
The correct result would be <span>26x + 12y - 2z + 6.</span>
Answer:
2.5 meter
Step-by-step explanation:
in a right triangle, tan of an angle = opposite side /adjacent side
tan 70° = x/ 0.9 , multiply both sides by 0.9
0.9 * tan 70° = x, solve on a calculator
x ≈ 2.5 m