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2 years ago

What is the slope-intercept equation of this line?

Mathematics

1 answer:

svet-max [94.6K]2 years ago

8 0

Your answer would be A. y = -3 + 4

the line intercepts the y axis at +4
and the line decreases 3 units down and one unit to the right which makes the slope ( rise over run) -3/1 but you would just say -3

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Mr. Evan is paid $9.20 per hour for the first 40 hours he works in a week he is paid 1.5 times that rate for each hour after tha

faust18 [17]

That is incorrect. The correct answer should be $398.38
First you take 9.2 times 40 and you get $368 which is how much he got paid for the first 40 hours. now he worked 2.25 hours extra so you take 9.2 * 1.5 because he gets 1.5 times more for extra hours. Then you add that to the $368 and you get $398.38

7 0

2 years ago

Please help, and thank you!

lawyer [7]

Answer:

3. C

4. D

Step-by-step explanation:

$x^2+25=0\\x^2=-25\\x=\pm\sqrt{-25}$

Once $\sqrt{-1}=i$

$x=\pm5i$

A quadratic equation has no real roots when the discriminant ( $\Delta$ ) is negative. $\Delta$ .

Let's try all the equations:

(A)

$2x^2-7x-9=0\\\\\Delta=\sqrt{\left(-7\right)^2-4\cdot \:2\left(-9\right)}\\\Delta=\sqrt{\left(-7\right)^2+4\cdot \:2\cdot \:9}\\\Delta=\sqrt{121} \\\Delta=11$

(B)

$2x^2=7x\\2x^2-7x=0\\x(2x-7)=0\\x=0\\\text{or}\\2x-7=0\\2x=7\\\\$

$x=\frac{7}{2}$

(C)

$2x^2+7x-9=0\\\Delta = \sqrt{7^2-4\cdot \:2\left(-9\right)}\\\Delta = \sqrt{7^2+4\cdot \:2\cdot \:9}\\\Delta = \sqrt{121} \\\Delta= 11$

(D)

$2x^2-7x+9=0\\\Delta = \sqrt{\left(-7\right)^2-4\cdot \:2\cdot \:9}\\\\\Delta=\sqrt{-23} \\\Delta=\sqrt{23i}$

8 0

2 years ago

I need this please help me

valina [46]

Answer:

A. Right 6, Down 5

Step-by-step explanation:

I don't know how to explain this

8 0

2 years ago

A triangle has angles that measure 106° and 59°.

sdas [7]

Answer: 15°

Steps:
106 + 59 + x = 180
165 + x = 180
x = 180 - 165
x = 15

Check:
106 + 59 + 15 = 180
106 + 59 + 15 = 180
180 = 180 ✅

I would appreciate brainliest if this was helpful, correct, and had clear steps! :) let me know if you have any questions!

3 0

2 years ago

Can 17 go into 131 or can 131 go into17 yes or no?

ehidna [41]

You will get a decimal for both answers. So, just round it.

6 0

2 years ago

Read 2 more answers