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3 years ago

Please help

Mathematics

1 answer:

gregori [183]3 years ago

5 0

Answer:

900%

Step-by-step explanation:

$V=\frac{1}{3} b^{2} h\\V=\frac{1}{3} *12^{2}*8 \\V=384$

The volume of pyramid A is 384 cubic inches.

3456/384 = 9

Pyramid B's volume is 900% bigger than pyramid A's volume.

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A taxi company charges $4.00 for the first mile (or part of a mile) and 80 cents for each succeeding tenth of a mile (or part).

svet-max [94.6K]

Answer:

The piecewise function is:

$C(x) = C(x) = \left \{ {{4, 0< x \leq 1} \atop {4 + 8x, 1 < x \leq 2}}\right.$

Step-by-step explanation:

A piecewise function is a function that is defined in multiple intervals.

In the first interval:

$0 < x \leq 1$

The problem states that a taxi company charges $4.00 for the first mile (or part of a mile).

x is the number of miles. So

If $x \leq 1, C(x) = $4.00$ .

Second interval:

$1 < x \ leq 2$

Here, the cost is defined by a linear function in the following format:

$C(x) = C_{0} + rx$

In which $C_{0}$ is the initial price and r is the price paid per mile.

The problem states that each succeeding tenth of a mile costs 80 cents. So

we have the following rule of three.

1 mile - r dollars

0.1miles - 0.8 dollars

$0.1r = 0.8$

$r = \frac{0.8}{0.1}$

$r = 8$

So, we have

$C(x) = 4 + 8x, 1 < x \leq 2$

Piecewise function:

The piecewise function is:

$C(x) = C(x) = \left \{ {{4, 0< x \leq 1} \atop {4 + 8x, 1 < x \leq 2}}\right.$

7 0

3 years ago

2/0 = 32/48 = 30/0. What number shpuld come in place of the zeros?

Anton [14]

Answer:

$\sf \dfrac{2}{3} = \dfrac{32}{48} = \dfrac{30}{45}$

$\sf \rightarrow \dfrac{2}{x} = \dfrac{32}{48}$

$\sf \rightarrow 2(48)= {32x}$

$\sf \rightarrow 32x= 96$

$\sf \rightarrow x = 3$

<u /> $\rightarrow \sf \dfrac{32}{48} = \dfrac{30}{y}$

$\rightarrow \sf {32y} = 30(48)$

$\rightarrow \sf {32y} = 1440$

$\rightarrow \sf y = 45$

8 0

2 years ago

1. passes through (2, 2), slope = 3

solmaris [256]

I’m confused, what’s the questions asking for?

8 0

3 years ago

Can someone explain me this please :)

choli [55]

Answer:

39) a) $2^{1}$ = 2

b) $2^{3}$ = 2×2×2=8

c) $2^{t}$

40) no

Step-by-step explanation:

40) both point A and B is below the point C. therefore it cannot pass through point c

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3 years ago

Write an equation in slope intercept form of the line

lina2011 [118]

Answer:

y=1/2x+5

Step-by-step explanation:

Identify the y intercept; 5, then count rise over run for the slope; 2/4

Simplify the equation; y=1/2x+5

8 0

3 years ago