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Rina8888 [55]
4 years ago
5

What is $2.50 times 7?

Mathematics
1 answer:
Sliva [168]4 years ago
6 0
2.5*7 = 17.5. If it's easier for you, multiply 2.5 by 5 then add 2.5*2.
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3 years ago
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Find the height of a cone with a volume of 942 cubic units and a radius of 10 units
Dmitry [639]
Volume of a cone: \frac{1}{3}\pir²h
Plug the radius and volume in the formula.

\frac{1}{3}\pi10²h = 942
Divide both sides by \frac{1}{3}.

\pi10²h = 2,826
Divide both sides by pi.

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Divide both sides by 10² (100).

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The cone's height is 9 units.
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3 years ago
What is the remainder when the polynomial f(x)=3x^3-4x^2+2x+8 is divided by (x-5)
allsm [11]

Answer:

remainder = 290

Step-by-step explanation:

\frac{3x^3-4x^2+2x+8}{x-5}

= 3x² + 11x + 57 + \frac{290}{x-5}

quotient = 3x² + 11x + 57 and remainder = 290


6 0
3 years ago
Find the equation of the line of best fit in slope intercept form . please help
slavikrds [6]

Answer:

y = (2/5)x + 3

Step-by-step explanation:

Note that the y-intercept is (0, 3) and that the line passes right through the point (5, 5).  First we find the slope of this line:  m = rise/run.

As we move from (0, 3) to (5, 5), we see that x increases by 5 (the run) and y increases by 2 (the rise).  Thus, the slope of this line is m = 2/5.

Now we know that m = 2/5, x = 5, y = 5 and b (the y-intercept) is 3.  Then our equation is y = mx + b, or y = (2/5)x + 3

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kati45 [8]

Answer:

Please find attached, the required drawing of quadrilateral ABCD and the dilation of quadrilateral ABCD scaled down by a scale factor of 1/3

Step-by-step explanation:

The coordinates of the quadrilateral ABCD are;

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From the dilation by a scale factor of 1/3, using D as the center of dilation, we have from the attached drawing, the following coordinates of the quadrilateral EFGH as E(0, 2), F(2, 2), G(3, 0) H(0, 0) which is the quadrilateral ABCD scaled down by 1/3

4 0
3 years ago
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