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2 years ago

A cereal box is 12 cm tall.the area of a base is 7cm square.what is the volume

Mathematics

2 answers:

n200080 [17]2 years ago

6 0

The volume = Base × height = 12× 7 = 84 Cm³

eimsori [14]2 years ago

3 0

Answer:

Step-by-step explanation:

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Divide. a.1 − 2i/2i b. 5 − 2i/5 + 2i c.√3 − 2i/−2 − √3i

Umnica [9.8K]

Answer:

(a) \frac{-1i}{2}-1[/tex]

(b) $\frac{20i+21}{29}$

Step-by-step explanation:

We have to perform division

(a) $\frac{1-2i}{2i}$

So after division

$\frac{1-2i}{2i}=\frac{1}{2i}-\frac{2i}{2i}=\frac{-1i}{2}-1$

(b) We have given expression $\frac{5-2i}{5+2i}$

After rationalizing $\frac{5-2i}{5+2i}\times \frac{5-2i}{5-2i}=\frac{(5-2i)^2}{25+4}=\frac{25+4i^2+20i}{29}=\frac{20i+21}{29}$

After rationalizing

$\frac{\sqrt{3}-2i}{-2-\sqrt{3i}}\times \frac{-2+\sqrt{3i}}{-2+\sqrt{3i}}=\frac{-2\sqrt{3}+7i+2\sqrt{3}}{7}=\frac{7i}{7}=i$

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3 years ago

Which of the following illustrates a phase shift?

Natasha_Volkova [10]

Answer:

A. y = -2 - cos(x-π)

Explanation:

The general form of the trig equation is:

y = A sin (Bx + C) + D

where:

A is the amplitude

$\frac{2\pi}{B}$ is the period

$\frac{-C}{B}$ is the phase shift

D is the vertical shift

Now, let's check the choices:

A. y = -2 - cos(x-π)

$\frac{-C}{B} = \frac{\pi}{1} = \pi$

Therefore, the function has a phase shift of π

B. y = 3 cos(4x)

$\frac{-C}{B} = \frac{0}{4} = 0$

Therefore, the function has no phase shift

C. y = tan(2x)

$\frac{-C}{B} = \frac{0}{2} = 0$

Therefore, the function has no phase shift

D. y = 1 + sin(x)

$\frac{-C}{B} = \frac{0}{1} = 0$

Therefore, the function has no phase shift

Based on the above, the correct answer is A

Hope this helps :)

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2 years ago

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DiKsa [7]

(2x-1)(x-4)
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3 years ago

Calculate the following numbers into scientific notation (include units)

inna [77]

7800nm + 95pm = (7800x 10^-9) + (95x10^-12) = 7.800095x10^-6=7.800095mm

2500nm - 7pm = (2500x 10^-9) + (7x10^-12) = 2.50007x10^-6 = 2.50007mm

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3 years ago

Please help me anybody.

lutik1710 [3]

Answer:

pt 1 is 3/5

Step-by-step explanation:

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A cereal box is 12 cm tall.the area of a base is 7cm square.what is the volume​

A cereal box is 12 cm tall.the area of a base is 7cm square.what is the volume