Answer:
C
Step-by-step explanation:
A polynomial in standard form is first term, variable with largest exponent followed by decreasing exponents to the last term, the constant
Given
x³ - 7x + 7
- 19 + x² ← rearrange terms
= 7 + x³ + x² - 7x - 19 ← in standard form → C
The base of the cylinder is a circle in which the area is calculated through the equation,
A = πr²
We are given that area is 25π in². From this and the equation above, the value of r is equal to 5 in. Using this calculated value as the height, the volume of the cylinder is,
V = Bh
where B is area of the base and h is height.
V = (25π in²)(5 in) = 125π in³
or also equal to,
V = 392.7 in
I will assume that is 19 2/5 INCHES.Set up a proportion with the actual height of the building.19.4 / h = 1/75Now, for cross-multiplying:H = 75 x 19.4 = 1455 feet.<span>That's a tall building!!!</span>
Answer:
8.6 × 10-4
Step-by-step explanation:
All numbers in scientific notation or standard form are written in the form m × 10n, where m is a number between 1 and 10 ( 1 ≤ |m| < 10 ) and the exponent n is a positive or negative integer. Therefore, the decimal number 0.00086 written in scientific notation is 8.6 × 10-4 and it has 2 significant figures.
Answer:
look at the picture i sent.......
