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2 years ago

What is the area of this triangle? Enter your answer in the box. units

Mathematics

1 answer:

4vir4ik [10]2 years ago

5 0

<h2>Answer:</h2>

$S=\frac{1}{2}\times4\times4=8\ {\rm units}^2$

$\left\{co\ calculate\right.\ \ \ \ \ \ \ \ \ \ \left\{S=\frac{1}{2}\right.\left.\ ah\right\}$

I hope this helps you

:)

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2/5(d−10)−2/3(d+6) is

MissTica

Remove parentheses
2/5 • d-10 - 2/3 • d+6

calculate
2/5d-4 - 2/3d-4

the answer
-4/15d-8

3 0

3 years ago

From a population of 200,000,000 elements, the standard deviation is known to be 14. A sample of 49 elements is selected. It is

Talja [164]

Answer:

The standard error of the mean = 2

Step-by-step explanation:

Given that:

The standard deviation σ = 14

The sample size n = 49

The sample mean $\overline x$ = 56

The formula for calculating the standard error can be expressed as:

$S.E = \dfrac{\sigma}{\sqrt{n}}$

$S.E = \dfrac{14}{\sqrt{49}}$

$S.E = \dfrac{14}{7}$

S.E = 2

Therefore, the standard error of the mean = 2

4 0

2 years ago

The owner of a football team claims that the average attendance at games is over 523, and he is therefore justified in moving th

USPshnik [31]

Answer:

C) There is not sufficient evidence to support the claim that the mean attendance is greater than 523.

Step-by-step explanation:

Let μ be the the average attendance at games of the football team

The claim: the average attendance at games is over 523

Null and alternative hypotheses are:

$H_{0}$ : μ=523

$H_{a}$ : μ>523

The conclusion is failure to reject the null hypothesis.

This means that test statistic is lower than critical value. Therefore it is not significant, there is no significant evidence to accept the alternative hypothesis.

That is no significant evidence that the average attendance at games of the football team is greater than 523.

7 0

2 years ago

If ƒ

SSSSS [86.1K]

(B)
if f(a) = K, then that means f sends (a) to (K).
the inverse function, f-1, goes back where you started, so f-1 sends (K) to (a).
f-1(K) = a.

8 0

2 years ago

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The total cost to go horseback riding is x dollars per hour plus a $2 fee for renting a helmet. Which expressions represent the

dalvyx [7]

Answer:

4(3x+2), 4(3x)+4(2), 12x+8

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers