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3 years ago

50 POINTS AND BRAINLIEST! The problem has a graph with a line that goes from the right to the left on the y axis on 2.5

Mathematics

2 answers:

Olin [163]3 years ago

8 0

Answer:

Step-by-step explanation:

y=-1

because when y = - 1,

it is an equation of x axis.. hence it will parallel to x axis....

irga5000 [103]3 years ago

8 0

Answer:

2.5 and go up tw x values

Step-by-step explanation:

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A particular brand of tires claims that its deluxe tire averages at least 50,000 miles before it needs to be replaced. From past

Volgvan

Answer: We reject the null hypothesis, and we use Normal distribution for the test.

Step-by-step explanation:

Since we have given that

We claim that

Null hypothesis : $H_0:\mu\geq 50000$

Alternate hypothesis : $H_1:\mu$

There is 5% level of significance.

$\bar{X}=46800\\\\\sigma=9800\\\\n=29$

So, the test statistic would be

$z=\dfrac{\bar{X}-\mu}{\dfrac{\sigma}{\sqrt{n}}}\\\\z=\dfrac{46800-50000}{\dfrac{9800}{\sqrt{29}}}\\\\z=-1.75$

Since alternate hypothesis is left tailed test.

So, p-value = P(z≤-2.31)=0.0401

And the P-value =0.0401 is less than the given level of significance i.e. 5% 0.05.

So, we reject the null hypothesis, and we use Normal distribution for the test.

4 0

3 years ago

Please help me in this question, pleaee

-Dominant- [34]

Answer:

They will meet in 5:30.

Step-by-step explanation:

'Cause you have to fin the LCM (least common multiple). And in this case the LCM is 30.

7 0

3 years ago

Jimmy receives his first 3 video games free then pays $50 for each game after that. Is the amount of money he spends on video ga

bagirrra123 [75]

no and that's the answer.

4 0

3 years ago

Read 2 more answers

What is 20,700,0000 in standard notation?

alexdok [17]

Answer:

2.07 x 10^4

Step-by-step explanation:

8 0

3 years ago

Integral 1+cos8x/tan2x-cot2x

UkoKoshka [18]

I believe it's 8cos(x)⁸ - 16cos(x)⁶ + 10cos(x)⁴ - 2cos(x)².

 $8cosx^8 - 16cosx^6+10cosx^4-2cosx^2$ 

Alternately, you can write [1 / (tan(2x) - cot(2x))] + [cos(8x) / (tan(2x) - cot(2x))].

 $\dfrac{1}{tan(2x)-cot(2x)}+ \dfrac{cos(8x)}{tan(2x)-cot(2x)}$

5 0

3 years ago