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4 years ago

What is the solution to the system of equations ?

Mathematics

1 answer:

Mashutka [201]4 years ago

4 0

The solution to the system of equations is referring to the point of intersect
the answer is C. (0, -5)

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Descent, Inc., produces a variety of climbing and mountaineering equipment. One of its products is a traditional three-strand cl

Rainbow [258]

Solution :

Assuming $\sigma_1^2=\sigma_2^2$

We have to test

$H_0:\mu_1=\mu_2$

Against $H_a: \mu_1 \neq \mu_2$

Level of significance, $\alpha = 0.05$

$s_p=\sqrt{\frac{(n_1-1)s_1^2+ (n_2-1)s_2^2}{n_1+n_2-2}}$

$s_p=\sqrt{\frac{(25-1)(425)^2+ (20-1)(415)^2}{25+20-2}}$

= 420.6107

Under $H_0$ , the t-statistics is as follows:

$t=\frac{(\overline{x_1} - \overline{x_2})}{s_p\sqrt{\frac{1}{n_1}+\frac{1}{n_2}}} \sim$ $\text{t with }(n_1+n_2-2) \ DF$

$t=\frac{(7200-7087)}{(420.6107)\sqrt{\frac{1}{25}+\frac{1}{20}}}$

= 0.90

DF = (25 + 20 - 2)

= 43

P-value of the test = 0.375

Since the p value is more than 0.05, we fail to reject our null hypothesis.

There is no difference between then mean tensile strength of the ropes that is produced in the Bozeman and Challis.

3 0

3 years ago

Answer this for me please!!

Black_prince [1.1K]

Answer:

1,520,000 liters of water

Step-by-step explanation:

4x10^4= 40000. 38x40000=1,520,000

1.52x10^6

7 0

4 years ago

5. The Smith family is driving to a vacation spot. The

Y_Kistochka [10]

Answer:

Step-by-step explanation:

7 0

3 years ago

Identify the diameter of the disc

Olegator [25]

radius = (4*10^2 + 24^2)/8*10 =

(400 + 576)/80=

976/80 = 12.2

diameter = 12.2 x 2 = 24.4

4 0

3 years ago

Any value that is set and cannot change is a variable. A.True B.False

Leni [432]

Thank you for posting your question here at brainly. Feel free to ask more questions.

The best and most correct answer among the choices provided by the question is B.False .

Hope my answer would be a great help for you.

7 0

3 years ago