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a_sh-v [17]
3 years ago
6

Francesca is afraid she won't have enough money to treat herself and two friends to a movie and snacks. Movie tickets cost $7.50

each, medium popcorns cost $2.95 each, and medium soft drinks cost $2.70 each. Round each amount up to the nearest whole dollar to find a reasonable overestimate of the total cost of the evening's entertainment. A. $14 B. $30 C. $42 D. $45
Mathematics
1 answer:
Archy [21]3 years ago
7 0
The correct answer is C.
8 + 8 + 8 + 3 + 3 + 3 + 3 + 3 + 3 = 42
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This robotic arm is made up of two cylinders with equal volume and two triangular prism hands. The volume of each hand is
BaLLatris [955]

Answer:

\frac{r}{3\pi h+r}

Step-by-step explanation:

Since the height isn't given, we assume it to be "h" (of cylinders). And the answer will be in terms of "r" and "h".

The area of 1 arm is given, so the area of 2 arms would be:

A_{arm}=2*(\frac{1}{2}r*\frac{1}{3}r*2r)=\frac{2r^3}{3}

Now, area of 2 cylinders would be the formula:

A_{cyl}=2*(\pi r^2 h)=2\pi r^2 h

So, total area is A_arm PLUS A_cyl. The fractional area the arms are would be gotten by taking expression A_arm  divided  by A_total.

Shown below:

\frac{A_{arm}}{A_{total}}=\frac{\frac{2r^3}{3}}{2\pi r^2 h + \frac{2r^3}{3}}

We simplify further:

\frac{\frac{2r^3}{3}}{2\pi r^2 h + \frac{2r^3}{3}}\\=\frac{\frac{2r^3}{3}}{2r^2(\pi h + \frac{r}{3})}\\=\frac{r}{3(\pi h + \frac{r}{3})}\\=\frac{r}{3\pi h+r}

THis is the answer.

6 0
3 years ago
Read 2 more answers
Calculate the mean of 7, 3, 5, 6 , 0. Single choice.
skelet666 [1.2K]

Answer:

b.) 4.2

Step-by-step explanation:

................

3 0
3 years ago
Six by the power of 2×3
Sergio039 [100]

Answer:

46,656

Step-by-step explanation:

6^2x3=

6^6=

6x6x6x6x6x6=

46,656

Hope that helps!

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2 years ago
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What equation matches this situation?
Nataly_w [17]
The first box should be correct
30 + c = 40
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3 years ago
F(x)=lx+4l+3 how do u do it
dybincka [34]

Answer:

implifying

f(x) = lx + 4l + -3

Multiply f * x

fx = lx + 4l + -3

Reorder the terms:

fx = -3 + 4l + lx

Solving

fx = -3 + 4l + lx

Solving for variable 'f'.

Move all terms containing f to the left, all other terms to the right.

Divide each side by 'x'.

f = -3x-1 + 4lx-1 + l

Simplifying

f = -3x-1 + 4lx-1 + l

Reorder the terms:

f = l + 4lx-1 + -3x-1

Step-by-step explanation:

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3 years ago
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