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Aleonysh [2.5K]

3 years ago

8

A class measured the radius and circumference of various circular objects. The results are plotted on the graph below. Does ther

e appear to be a proportional relationship between the radius and circumference of a circle? Explain your reasoning

1 answer:

yaroslaw [1]3 years ago

4 0

Answer:

what is aletoria in english

Step-by-step explanation:

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PLEASE HELP I NEED THIS ASAP<br> Find the vertex of y=x^2-7x+4

Goshia [24]

Answer:

$\mathrm{Minimum}\space\left(\frac{7}{2},\:-\frac{33}{4}\right)$

Step-by-step explanation:

$y=x^2-7x+4\\\mathrm{The\:vertex\:of\:an\:up-down\:facing\:parabola\:of\:the\:form}\:y=ax^2+bx+c\:\mathrm{is}\:x_v=-\frac{b}{2a}\\\mathrm{The\:parabola\:params\:are:}\\a=1,\:b=-7,\:c=4\\x_v=-\frac{b}{2a}\\x_v=-\frac{\left(-7\right)}{2\cdot \:1}\\\mathrm{Simplify}\\x_v=\frac{7}{2}\\\mathrm{Plug\:in}\:\:x_v=\frac{7}{2}\:\mathrm{to\:find\:the}\:y_v\:\mathrm{value}\\y_v=\left(\frac{7}{2}\right)^2-7\cdot \frac{7}{2}+4\\$

$\mathrm{Simplify\:}\left(\frac{7}{2}\right)^2-7\cdot \frac{7}{2}+4:\quad -\frac{33}{4}\\y_v=-\frac{33}{4}\\Therefore\:the\:parabola\:vertex\:is\\\left(\frac{7}{2},\:-\frac{33}{4}\right)\\\mathrm{If}\:a0,\:\mathrm{then\:the\:vertex\:is\:a\:minimum\:value}\\a=1\\\mathrm{Minimum}\space\left(\frac{7}{2},\:-\frac{33}{4}\right)$

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3 years ago

Helppppp can someone answer these questions please

Delvig [45]

Answer:

Can you please tell us your question? Thanks!stiona

Step-by-step explanation:

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3 years ago

What is the y-intercept in the equation y=8x+6

lisabon 2012 [21]

Answer:

(0,6) or 6

Step-by-step explanation:

To find the y-intercept look at the last variable you have, which in this case is 6. Glad to help :)

7 0

2 years ago

A sum of rs 400 is lent for 3 yrs at the rate of 6% per annum. Find the interest.

Nimfa-mama [501]

Interest is equal to rs 72

Simple Interest is computed by multiplying the principal to the interest rate and the time.

I = P * r * t

Principal = rs 400
Interest rate = 6%
Term / time = 3 yrs

I = 400 * 6% * 3
I = 72 the total interest that must be paid in 3 yrs.

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3 years ago

(-5,-4), (8,8) what are the answers for these

Evgesh-ka [11]

Answer:

(-5, -4) is -9

Step-by-step explanation:

hope this helps

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3 years ago