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Natali [406]
3 years ago
12

I really need this answered so I can understand how to do the rest.

Mathematics
1 answer:
qwelly [4]3 years ago
4 0

Answer:

B

Step-by-step explanation:

We can write

4=\sqrt{\frac{3v}{3.14*8}}\\4^2=\frac{3v}{25.12}\\16*25.12=3v\\401.92=3v\\133.9733333333333=v

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Matt had 5 library books. He checked out 1 additional book every week without retuening any books. Whats the matching equation
photoshop1234 [79]

Answer:

The equation would be y = x + 5, in which x is the number of weeks and y is the number of books he has.

Step-by-step explanation:

We know this because even at 0 weeks, he still has 5 books. Therefore we put this as the constant at the end. Then we can add the number of weeks since the rate is one book per week.

5 0
3 years ago
Which of the statements below best describes direct variation?
REY [17]
Direct variation is when one variable changes the other changes in proportion of the first, therefore all the above 
8 0
3 years ago
Please help me im new idk how to do any of this.Please help i suck at math​
FromTheMoon [43]

Answer:

x=85

Step-by-step explanation:

Hope this helps you :))

(Hope it doesn't get reported becuase it "doesn't have an explanation of how it's right") Have a blessed day ^-^

7 0
3 years ago
EXTRA CREDIT: Write an equation that is parallel to 3x – 2y = 14 and passes through the point(-6.-11) in slope intercept-form. Y
m_a_m_a [10]

Answer:

no lo se, sol necesitaba puntos

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Write an equation in slope-intercept form (y = mx + b).
Wewaii [24]

Answer:

y = 2/7x + 7

Step-by-step explanation:

We start off by putting the original equation into slope-intercept form. Subtract 7x from both sides, then divide both sides by -2. Your new equation should be y = -7/2x - 8. It's important to know that when two lines are perpendicular, their slopes (m) are opposite reciprocals of each other.  So -7/2 becomes 2/7. The first part of your final equation is y = 2/7x + b.

Next, we need to find the y intercept (b). You need to plug the x and y values from the given coordinate point (-7,5) into your final equation. You should end up with: 5 = 2/7(-7) + b. Then, solve for b.

5 = -14/7 + b

5 = -2 + b

7 = b

Finally, plug the b value into your final equation and you will have your answer.

4 0
3 years ago
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