2 years ago

Does anyone know the answers please help!

Mathematics

1 answer:

Ray Of Light [21]2 years ago

4 0

Answer:

I am sick

Step-by-step explanation:

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How are all angles in the 4th quadrant, negative or positive?

anastassius [24]

Answer:

They are all positive because you must go right.

They are all negative because you must go down.

Step-by-step explanation:

Example. (1,-4)

You go over one.

Down 4

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3 years ago

Find the values of x and z

Ad libitum [116K]

Hope this helps you, and good luck in the future :)

4 0

3 years ago

Standard deviation of 300, 785, 670, 187, 760, 724

White raven [17]

STEP 1

Mean = $\frac{300+785+670+187+760+724}{6} = \frac{3426}{6}=571$

STEP 2

Subtract the mean from each data value then square the answer
$300-571=-271$ ⇒ $(-271)^{2} =73441$
$785-571=214$ ⇒ $(214)^{2}=45796$
$670-571=99$ ⇒ $(99)^{2}=9801$
$187-571=-384$ ⇒ $(-384)^{2} =147456$
$760-571=189$ ⇒ $189^{2}=35721$
$724-571=153$ ⇒ $153^{2} =23409$

STEP 3

Add the squared answers in STEP 2 then find the mean

$\frac{73441+45796+9801+147456+35721+23409}{6}= \frac{335624}{6}=55937.3$

STEP 4

Square root the answer in STEP 3
$\sqrt{55937.3} =236.5$

Standard deviation is 236.5

7 0

3 years ago

Solve the following system of equations. <br><br> 2x + y = 3 <br> x = 2y - 1

Sloan [31]

2x + y = 3

First give them values.

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2 years ago

So are you good at maths then what is

quester [9]

maybe 28 is the answer...

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2 years ago

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