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sasho [114]
3 years ago
7

Anyone?? Tbh I’m actually having trouble with this question.

Mathematics
1 answer:
aksik [14]3 years ago
5 0
You would do 66×3, which is 198
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A race car travels 100 feet in .5 seconds. At this rate of speed, how many feeet will the race car travel in a minute?
soldier1979 [14.2K]

Answer:

Step-by-step explanation:

\frac{100ft}{0.5s} * 60s

\frac{100 * 60}{0.5}

\frac{6000}{0.5}

12000ft

5 0
2 years ago
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Suppose we want to build a rectangular storage container with open top whose volume is $$12 cubic meters. Assume that the cost o
Snezhnost [94]

Answer:265.25

Step-by-step explanation:

Given

Volume of box=12 m^3

height is 3 times the width

let height, length and breadth be H, L & B

H=3\times B

V=12=L\times B\times H

4=B^2\times L[/tex]

L=\frac{4}{B^2}

Cost of side walls $ 8/m^2

Cost of base $ 12/m^2

Cost of side walls=(2LH+2BH)\cdot 8

Cost of base =12LB

Total cost C=16LH+16BH+12LB

C=48LB+48B^2+12LB

C=\frac{192}{B}+48B^2+\frac{48}{B}

differentiate C w.r.t B to get minimum cost

\frac{\mathrm{d} C}{\mathrm{d} B}=-\frac{192}{B^2}+2\times 48 B-\frac{48}{B^2}

B^3=\frac{240}{2\times 48}

B=1.35 m

H=3\times 1.35=4.07 m

L=2.19 m

C=$ 265.25

3 0
2 years ago
Which graph represents f(x)=−2cos(4πx)?
algol [13]

Answer:

the last one (bottom right)

Step-by-step explanation:

4×pi is the same as twice around the whole circle to the beginning. it is the same as 0°, and cos(0) = 1, and then -2×cos(0) = -2

so, we only need to look, where the function reaches -2.

it should be at x = 0, x = 0.5 and x = 1.

3 0
2 years ago
What is the image point of (-4, 8) after a translation right 4 units and up 2 units?
Vitek1552 [10]

Given:

Point = ( -4,8).

To find:

The image point of (-4, 8) after a translation right 4 units and up 2 units.

Solution:

We know that, if a figure translated 4 units right and 2 units up, then the rule of translation is

(x,y)\to (x+4,y+2)

The point is (-4,8).

Putting x=-4 and y=8, we get

(-4,2)\to (-4+4,8+2)

(-4,2)\to (0,10)

Therefore, the image of point (-4,8) is (0,10).

4 0
2 years ago
The radius of a circle is 2 units.<br> What is the diameter of the circle?
Ann [662]

Answer:

4units

Step-by-step explanation:

diameter is twice the radius

8 0
3 years ago
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