All categories

3 years ago

I need help asap......!!!!!!!!!!!!!

Mathematics

2 answers:

Pavlova-9 [17]3 years ago

8 0

Answer:

The correct answer is option d. Equilateral, acute

Step-by-step explanation:

Fro the given figure of the triangle we get,

all the three sides of given triangle are equal.

Each sides of triangle is 48.3

therefore the triangle is equilateral triangle.

We know that <u>all angles of an equilateral are equa</u>l , which is equal to 60.

Here also angle = 60

60 < 90 therefore angles are acute.

Therefore option d is the correct answer.

Crazy boy [7]3 years ago

5 0

The answer is D because it has 3 equal sides and they’re all less than 90 degrees

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Simplif the expression -3 ÷ (- 2/5)

kati45 [8]

Answer:

15/2

Step-by-step explanation:

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4 years ago

A study found that, in 2005, 12.5% of U.S. workers belonged to unions (The Wall Street Journal, January 21, 2006). Suppose a sam

Julli [10]

Answer:

There is not enough evidence to support the claim that union membership increased.

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 400

p = 12.5% = 0.125

Alpha, α = 0.05

Number of women belonging to union , x = 52

First, we design the null and the alternate hypothesis

$H_{0}: p = 0.125\\H_A: p > 0.125$

The null hypothesis sates that 12.5% of U.S. workers belong to union and the alternate hypothesis states that there is a increase in union membership.

This is a one-tailed(right) test.

Formula:

$\hat{p} = \dfrac{x}{n} = \dfrac{52}{400} = 0.13$

$z = \dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}$

Putting the values, we get,

$z = \displaystyle\frac{0.13-0.125}{\sqrt{\frac{0.125(1-0.125)}{400}}} = 0.3023$

Now, we calculate the p-value from the table.

P-value = 0.3812

Since the p-value is greater than the significance level, we fail to reject the null hypothesis and accept the null hypothesis.

Conclusion:

Thus, there is not enough evidence to support the claim that union membership increased.

8 0

3 years ago

Please help me with this! <3

alexandr402 [8]

Answer:

Surface Area=

$100\pi$

$4\pi \times {r}^{2} = 100\pi$
r=5

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3 years ago

What is the slope of the line with equation y−3= -1/2 (x−2)?

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M = - 1/2 should b the answer

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3 years ago

Help with this question please!!!!

hjlf

Answer:

I think that the answer is 5

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3 years ago