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2 years ago

Pls help! Find the slope -3/5 3/5 5/3 -5/3

Mathematics

2 answers:

s344n2d4d5 [400]2 years ago

5 0

The answer is -5/3 hope this helps

Lynna [10]2 years ago

4 0

Answer:

Step-by-step explanation:

to find the slope always think of (rise over run) basically for rise it goes down 5 so that would be -5 and for run it moves to the right 3 so that -5/3

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An engineer designed a valve that will regulate water pressure on an automobile engine. The engineer designed the valve such tha

natita [175]

Answer:

Step-by-step explanation:

Given that:

Population Mean = 7.1

sample size = 24

Sample mean = 7.3

Standard deviation = 1.0

Level of significance = 0.025

The null hypothesis:

$H_o: \mu = 7.1$

The alternative hypothesis:

$H_a: \mu > 7.1$

This test is right-tailed.

$degree \ of \ freedom= n - 1 \\ \\ degree \ of \ freedom = 24 - 1 \\ \\ degree \ of \ freedom = 23$

Rejection region: at ∝ = 0.025 and df of 23, the critical value of the right-tailed test $t_c = 2.069$

The test statistics can be computed as:

$t = \dfrac{ \hat X - \mu_o}{\dfrac{s}{\sqrt{n}}}$

$t = \dfrac{ 7.3-7.1}{\dfrac{1}{\sqrt{24}}}$

$t = \dfrac{0.2}{0.204}$

t = 0.980

Decision rule:

Since the calculated value of t is lesser than, i.e t = 0.980 < $t_c = 2.069$ , then we do not reject the null hypothesis.

Conclusion:

We conclude that there is insufficient evidence to claim that the population mean is greater than 7.1 at 0.025 level of significance.

6 0

3 years ago

What is the result of (x^2 – 10x) – (–5x^2 + x)?

Advocard [28]

Answer:

(6x²-11x) that's the answer :)

5 0

3 years ago

Janine worked 15 hours last week. One job as a clerk in a sporting goods store paid her $8.47 per hour, while her job giving p

lorasvet [3.4K]

Answer:

she worked 9 hours at sporting goods store and 6 hours on piano lessons.

Step-by-step explanation:

total hours=15

8.47x + 17(15-x) = 178.23

8.47x + 225 - 17x = 178.23

225 - 178.23 = 17x - 8.47x

76.77 = 8.53x

x = 76.77 / 8.53

x = 9

therefore she worked 9 hours at sporting goods centre and the remaining hours (15-9) giving piano lessons.

4 0

3 years ago

What is the domain for each function below? Choose the correct inequality symbol from the drop down menu and fill in the blank w

erik [133]

Answer:

$x \le 3$

$x \ge 0$

Step-by-step explanation:

The functions, missing from the question are:

$f(x) = \sqrt{3 - x$

$f(x) = \sqrt{3 x$

Required

Determine the domain

To get the domain, means we want to get the possible values of x.

(a)

$f(x) = \sqrt{3 - x$

Equate 3 - x to 0

$3 - x = 0$

Solve for x

$-x = -3$

$x = 3$

From the calculated value of x above;

When x exceeds 3; f(x) = undefined

So: the domain is:

$x \le 3$

(b)

$f(x) = \sqrt{3x$

Equate 3x to 0

$3x = 0$

Solve for x

$x = 0$

From the calculated value of x above;

When x falls below 0; f(x) = undefined

So: the domain is:

$x \ge 0$

4 0

2 years ago

20. 35 g of flour is used for making a muffin. Anajulie needs to prepare 700 muffins. She has 10.8 kg of flour. How much more fl

Sergeeva-Olga [200]

Step-by-step explanation:

since for one muffins we need 20.35 g of flour

then for 700 muffins we need 20.35×700=14245g

14245g= 14.245kg

since she has 10.8kg then she needs extra (14.245-10.8)kg

=3.445kg

4 0

2 years ago

Read 2 more answers