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3 years ago

Write an equation of the line in slope intercept form.

Mathematics

2 answers:

Leya [2.2K]3 years ago

7 0

Answer:

y = x + 3

Step-by-step explanation:

satela [25.4K]3 years ago

7 0

Answer:

y = x+3

Step-by-step explanation:

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Mary Chapman had been working at First Savings for 18 years when she

DedPeter [7]

Answer:

17250

Step-by-step explanation:

6 0

3 years ago

PLS help question 9 and 10 or u can do only 9 it’s due tmrw

SCORPION-xisa [38]

Answer:

im pretty sure #9 is just y=7x... it should be parallel with y=7x-3 since it has y intercept of 0 rather than -3.

3 0

3 years ago

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The angle 0 lies in Quadrant II . <br>Cos 0 = <br><img src="https://tex.z-dn.net/?f=%20-%20%20%5Cfrac%7B2%7D%7B3%7D%20" id="TexF

mel-nik [20]

Answer:

$\tan(\theta)=\frac{-\sqrt{5}}{2}$

Step-by-step explanation:

Since we are in quadrant 2, sine is positive. Since sine is positive and cosine is negative, then tangent is negative.

Now I'm going to find the sine value of this angle given using one of the Pythagorean Identities, namely $\sin^2(\theta)+\cos^2(\theta)=1$ .

If given $\cos(\theta)=\frac{-2}{3}$ , then we have $\sin^2(\theta)+(\frac{-2}{3})^2=1$ by substitution of $\cos(\theta)=\frac{-2}{3}$ .

Let's solve:

$\sin^2(\theta)+(\frac{-2}{3})^2=1$ for $\sin(\theta)$ .

$\sin^2(\theta)+\frac{4}{9}=1$

Subtract 4/9 on both sides:

$\sin^2(\theta)=1-\frac{4}{9}$

Simplify:

$\sin^2(\theta)=\frac{5}{9}$

Square root both sides:

$\sin(\theta)=\sqrt{\frac{5}{9}}$

$\sin(\theta)=\frac{\sqrt{5}}{\sqrt{9}}$

$\sin(\theta)=\frac{\sqrt{5}}{3}$

===========

$\tan(\theta)=\frac{\sin(\theta)}{\cos(\theta)}=\frac{\frac{\sqrt{5}}{3}}{\frac{-2}{3}}$

Multiplying top and bottom by 3 gives:

$\tan(\theta)=\frac{\sqrt{5}}{-2}$

I'm going to move the factor of -1 to the top:

$\tan(\theta)=\frac{-\sqrt{5}}{2}$

7 0

3 years ago

Write the equation in standard form of the line that passes through the points (7,-3) and (-3,1).

Aliun [14]

Answer:

y-intercept form of that equation:

y=-2/5x+b

1=-2/5(-3)+b

1=6/5+b

b=-1/5

y=-2/5x-1/5

standard form:

2/5x+y=-1/5

srry im too busy rn so i couldnt explain very well :/

Step-by-step explanation:

7 0

3 years ago

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Which expression is equivalent to 1/3 b + 2/3 b − 5/6 (b+1) ?

Helen [10]

I think it is not finished you need to tell me want b means.

4 0

3 years ago