Need brainliest+20
a triangular lot in a park has a base with a measure that is 4 more than twice the height of the lot. the area of the lot is 99 square feet. since the area of a triangle is found by using the formula a=1/2 bh, the area for this lot can be represented by the equation 99=1/2(2h+4)h, where h represents the height of the triangle.
what is the height of the lot?

Simplify the equation they gave you: 99 = 1/2*(2h + 4)*h; first multiply

99 = (h + 2)*h

99 = h² + 2h; subtract h² + 2h from both sides

99 - h² - 2h = 0; rearrange

-h² - 2h + 99 = 0; factor

(-h + 9)(h + 11) = 0; set each factor equal to 0

-h + 9 = 0 → h = 9           h + 11 = 0 → h = -11

The value of h has to be positive so lets go with 9. Plug it ito the equation to make sure.

99 = 1/2*(2(9) + 4)*9

99 = 1/2*22*9

99 = 99; that means that the answer was right → 9 is the height

I hope this helps you!

when a man loves a woman they have sex

Step-by-step explanation:

16% of his phone bills are more than $76

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

68% of the measures are within 1 standard deviation of the mean.

95% of the measures are within 2 standard deviation of the mean.

99.7% of the measures are within 3 standard deviations of the mean.

In this problem, we have that:

Mean = 65

Standard deviation = 11

What percentage of his phone bills are more than $76?

76 = 65 + 11

So 76 is one standard deviation above the mean.

By the Empirical Rule, 68% of the measures are within 1 standard deviation of the mean. The other 100-68 = 32% are more than 1 standard deviation from the mean. Since the normal probability distribution is symmetric, 16% of them are more than 1 standard deviation below the mean and 16% are more than 1 standard deviation above the mean. So

16% of his phone bills are more than $76