All categories

3 years ago

WHO KNOWS THIS? PLS I NEED HELP

Mathematics

1 answer:

Archy [21]3 years ago

7 0

Answer:

I think AB=DC

Step-by-step explanation:

I'm just guessing but I think it is that because they both parallel or something

You might be interested in

What is the x intercept of the line

Mrrafil [7]

B -7,0 when we talk about the x intercept we talk about where the line touches the x axis which would be the horizontal line , in this graph we saw the graphed line touches the x axis on -7 therefore , the x intercept is -7,0

3 0

3 years ago

A public bus company official claims that the mean waiting time for bus number 14 during peak hours is less than 10 minutes. Kar

ch4aika [34]

Answer:

We conclude that the mean waiting time is less than 10 minutes.

Step-by-step explanation:

We are given that a public bus company official claims that the mean waiting time for bus number 14 during peak hours is less than 10 minutes.

Karen took bus number 14 during peak hours on 18 different occasions. Her mean waiting time was 7.8 minutes with a standard deviation of 2.5 minutes.

Let $\mu$ = mean waiting time for bus number 14.

So, Null Hypothesis, $H_0$ : $\mu \geq$ 10 minutes {means that the mean waiting time is more than or equal to 10 minutes}

Alternate Hypothesis, $H_A$ : $\mu$ < 10 minutes {means that the mean waiting time is less than 10 minutes}

The test statistics that would be used here One-sample t test statistics as we don't know about the population standard deviation;

T.S. = $\frac{\bar X-\mu}{\frac{s}{\sqrt{n} } }$ ~ $t_n_-_1$

where, $\bar X$ = sample mean waiting time = 7.8 minutes

s = sample standard deviation = 2.5 minutes

n = sample of different occasions = 18

So, test statistics = $\frac{7.8-10}{\frac{2.5}{\sqrt{18} } }$ ~ $t_1_7$

= -3.734

The value of t test statistics is -3.734.

Now, at 0.01 significance level the t table gives critical value of -2.567 for left-tailed test.

Since our test statistic is less than the critical value of t as -3.734 < -2.567, so we have sufficient evidence to reject our null hypothesis as it will fall in the rejection region due to which we reject our null hypothesis.

Therefore, we conclude that the mean waiting time is less than 10 minutes.

5 0

4 years ago

Step 2: What factor is used to convert feet per minute into miles per minute?

wlad13 [49]

Answer:

1 ft per minute=0.000189 miles per minute

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

What is the quotient of 7.584 x 10^9 and 7.9 x 10^ 2 expressed in scientific notation?

Scilla [17]

Answer:

9.6 × 10 6

Step-by-step explanation:

(7.584 × ) ÷ (7.9 × 10²)

This gives;

× = 0.96 ×

Simplifying further gives;

9.6 × = 9.6 ×

6 0

3 years ago

an aston martin vanquish costs £100,000. if i had to pay VAT (value added tax) on top of this it will cosy me 17% more! how much

likoan [24]

If we take £100,000 as the 100%, then, the VAT will be 17% of that, well
how much is 17% of £100,000 ?

$\bf \begin{array}{ccllll}
amount&\%\\
\textendash\textendash\textendash\textendash\textendash\textendash&\textendash\textendash\textendash\textendash\textendash\textendash\\
100,000&100\\
x&17
\end{array}\implies \cfrac{100,000}{x}=\cfrac{100}{17}$

solve for "x"

6 0

3 years ago