2x² + 4x - 16 = 0
2(x²) + 2(2x) - 2(8) = 0
<u>2(x² + 2x - 8)</u> = <u>0</u>
2 2
x² + 2x - 8 = 0
x = <u>-(2) ± √((2)² - 4(1)(-8))</u>
2(1)
x = <u>-2 ± √(4 + 32)</u>
2
x = <u>-2 ± √(36)
</u> 2<u>
</u> x = <u>-2 ± 6
</u> 2<u>
</u> x = -1 ± 3
x = -1 + 3 U x = -1 - 3
x = 2 x = -4
<u />
the continuous line forming the boundary of a closed geometrical figure.
Step-by-step explanation:
A perimeter is a closed path that encompasses, surrounds, or outlines either a two dimensional shape or a one-dimensional length. The perimeter of a circle or an ellipse is called its circumference. Calculating the perimeter has several practical applications.
-x + 2y = 4
2y = x + 4
y = 1/2x + 2.....slope here is 1/2. A perpendicular line will have a negative reciprocal slope. All that means is " flip " the slope and change the sign. So the slope we need is -2 (see how I flipped the slope and changed the sign)
y = mx + b
slope(m) = -2
(-2,1)...x = -2 and y = 1
now we sub and solve for b, the y int
1 = -2(-2) + b
1 = 4 + b
1 - 4 = b
-3 = b
so ur perpendicular line is : y = -2x - 3
Answer:
Julie spent $5.46. Micah spent $27.30. Jeremy spent $33.99.
Step-by-step explanation:
Julie spent $5.46
Micah spent 5 times more than Julie, so multiply $5.46 by 5, which totals $27.30.
Jeremy spent $6.69 more than Micah, so add $6.69 to $27.30 to equal $33.99.
9514 1404 393
Answer:
25
Step-by-step explanation:
The place whose value is 10^n has n digits to the right of it. This number can be written as ...
0.25840×10^25
which makes the digit 2 be the 25th digit to the left of the decimal point.
There are 25 digits in the Hindu-Arabic form:
2,584,000,000,000,000,000,000,000
