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3 years ago

Please help I’m depending on this so I can pass

Mathematics

1 answer:

erik [133]3 years ago

8 0

Answer: 17 percent
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The vertex of the parabola is at (4,-3) which of the following could be its equation?

kolbaska11 [484]

$\bf \qquad \textit{parabola vertex form}\\\\
\begin{array}{llll}
y=a(x-{{ h}})^2+{{ k}}\\\\
\boxed{x=a(y-{{ k}})^2+{{ h}}}
\end{array} \qquad\qquad vertex\ ({{ h}},{{ k}})\\\\
-------------------------------\\\\
\begin{cases}
h=4\\
k=-3
\end{cases}\implies x=a(y-(-3))^2+4\implies x=a(y+3)^2+4$

6 0

3 years ago

What is the surface area of the cube with the given edge length, s?

iren [92.7K]

A cube has 6 sides.
first calculate the area of 1 side and then multiply it by 6

the area for one side = S^2 ( or SxS)

15^2 = 15 x 15 = 225 square inches

now multiply that by 6:
225 x 6 = 1350 square inches total

the answer is B.

8 0

3 years ago

Read 2 more answers

For the students in your school, the mean score on a state-wide standardized test was 116. Is the mean score a parameter or a st

erastovalidia [21]

Statistic because it’s a fact and data that is being study as you go to school by the large quality of numerical data

3 0

3 years ago

According to a recent study, 9.3% of high school dropouts are 16- to 17-year-olds. In addition, 6.4% of high school dropou

Finger [1]

Answer:

0.688 or 68.8%

Step-by-step explanation:

Percentage of high school dropouts = P(D) = 9.3% = 0.093

Percentage of high school dropouts who are white = $P(D \cap W)$ = 6.4% = 0.064

We need to find the probability that a randomly selected dropout is white, given that he or she is 16 to 17 years old. This is conditional probability which can be expressed as: P(W | D)

Using the formula of conditional probability, we ca write:

$P(W | D)=\frac{P(W \cap D)}{P(D)}$

Using the values, we get:

P( W | D) = $\frac{0.064}{0.093} = 0.688$

Therefore, the probability that a randomly selected dropout is white, given that he or she is 16 to 17 years old is 0.688 or 68.8%

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3 years ago

Isolated triangle 68 perimeter equal sides more than 10 ft use x for the shorter side formula

Ugo [173]

Answer:

Step-by-step explanation:

Find the perimeter of an isosceles triangle whose equal sides have a size of 10 m each and the angle between them equal to 30°. We need to know all sides in order to find the perimeter of this triangle. Let x be the base of this isosceles triangle.

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2 years ago