All categories

2 years ago

Please help asap

Mathematics

1 answer:

Nostrana [21]2 years ago

6 0

I Think The answer is d I hope it helps My friend Message Me if I’m wrong and I’ll change My answer and fix it for you

You might be interested in

If y=(sec^-1x)^2, then show that x^2(x^2-1) d^2y/dx^2 + (2x^3 - x) dy/dx = 2

Arisa [49]

Step-by-step explanation:

Hope it helps you in your learning process.

8 0

3 years ago

3x+6y=36 and -3x-6y=0

Anastasy [175]

Answer:

No solution

Step-by-step explanation:

3x + 6y =36

-3x - 6y =0

------------------add

0 ≠ 36

No solution

4 0

3 years ago

A study is conducted to determine if a newly designed text book is more helpful to learning the material than the old edition. T

Oksanka [162]

Answer:

The null and alternative hypotheses are:

$H_{0}:\mu=75$

$H_{a} : \mu>75$

Under the null hypothesis, the test statistic is:

$t=\frac{\bar{x}-\mu}{\frac{s}{\sqrt{n}} }$

Where:

$\bar{x} =83$ is the sample mean

$s=9.8206$ is the sample standard deviation

$n=10$ is the sample size

$\therefore t= \frac{83-75}{\frac{9.8206}{\sqrt{10}} }$

$=2.58$

Now, we can find the right tailed t critical value at 0.01 significance level for df = n-1 = 10 - 1 = 9 using the t distribution table. The t critical value is given below:

$t_{critical} =2.821$

Since the test statistic is less than the t critical value, we therefore, fail to reject the null hypothesis and conclude that there is not sufficient evidence to support the claim that the people do better with the new edition.

7 0

3 years ago

Plz help MATH HW<br>explain/answer

Misha Larkins [42]

No because the sum could also be irrational number which for example it could be square root of 9 or 49

Hope this helps answer your question

6 0

3 years ago

Add the following<br><br> - 62 + (- 65)=

Ainat [17]

Answer:

-127

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers