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3 years ago

What is the slope of the line shown below (- 1, 8) (2, - 4)

Mathematics

1 answer:

suter [353]3 years ago

6 0

Answer:

The slope of the line can be determined from the gradient equation, rise (y axis)/ run (x-axis)

Hence let (-1, 8) be A and (2, -4) be B. The slope from A to B is (-4-8)/(2-(-1))= (-12)/3= -4

Hence the gradient/ slope of the line is -4.

Step-by-step explanation:

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Rhianna and Sauron a wrote 35 songs . They mad CDs with 7 songs on each CD. How many CDs did they have left after they sold 3 to

myrzilka [38]

35 songs/7 songs= 5 CDs

5-3=2 CDs left after they sold 3

8 0

3 years ago

Given that x is an integer, what is the solution of <br>|x-1|<img src="https://tex.z-dn.net/?f=%20%5Cleqslant%201" id="TexFormul

Varvara68 [4.7K]

Answer:

see explanation

Step-by-step explanation:

Inequalities of the type | x | ≤ a always have solutions of the form

- a ≤ x ≤ a

Given

| x - 1 | ≤ 1 then

- 1 ≤ x - 1 ≤ 1 ( add 1 to each of the 3 intervals )

0 ≤ x ≤ 2

Since we require an integer solution then x = 0, 1, 2

5 0

3 years ago

PLEASE HELP WILL GIVE EXTRA POINTS

Eddi Din [679]

Answer:

Part A

The p-value indicates that the largest probability of having the two remedies having a difference as observed or larger than as observed being equal to 0.3822

Part B:

Given that the p-value of 0.3822 is larger than the significance level α of 0.05, we fail to reject the null hypothesis and we conclude that there is enough statistical evidence to suggest that the salvage rates are the same for Remedy A and B

Step-by-step explanation:

The p-value

The test statistic is given as follows;

$Z=\dfrac{\hat{p}_1-\hat{p}_2}{\sqrt{\hat{p}(1-\hat{p})\left (\dfrac{1}{n_{1}}+\dfrac{1}{n_{2}} \right )}}$

$\hat p_1$ = 35/220 = 7/44

$\hat p_2$ = 39/230

$\hat p$ = 74/220 = 37/110

We get our test statistic z = -0.2996381

Part A

The p-value indicates that the largest probability of having the two remedies having a difference as observed or larger than as observed being equal to 0.3822

Part B:

5 0

3 years ago

Write the following in vertical columns. Then subtract.<br><br>b) 4a - 7c from 4a - 3b + 8c<br>

andreyandreev [35.5K]

It is instructed to subtract (2a−3b+4c) from the sum of (a+3b−4c),(4a−b+9c) and (−2b+3c−a).

So, First we will do the sum of the three given polynomials,

Sum =(a+3b−4c)+(4a−b+9c)+(−2b+3c−a)

=(a+4a−a)+(3b−b−2b)+(−4c+9c+3c)

=4a+8c

Now, we can perform the subtraction,

∴ Required difference

=(4a+8c)−(2a−3b+4c)

=4a+8c−2a+3b−4c

=2a+3b+4c

6 0

3 years ago

Please Help!! Only Anwser If You Know It!!!

Tresset [83]

Answer:

It will be compressed vertically

Step-by-step explanation:

y = Cf(x) 0 < C < 1 compresses it in the y-direction

Since we are multiplying by 1/4 it will compress it by 1/4 in the y direction

5 0

3 years ago

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