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3 years ago

The midpoint between -7 and 8 is 1/2 t or f

Mathematics

1 answer:

hammer [34]3 years ago

6 0

Answer:

True

Step-by-step explanation:

The midpoint is the average of the values:

(-7 +8)/2 = 1/2

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Two numbers add up to 102 and the first is 8 bigger than the second. What are the two numbers?

lorasvet [3.4K]

The correct numbers are 55 and 47, because they have a difference of 8 and a sum of 102.

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3 years ago

Read 2 more answers

Given sin b = .88 find angle b in radians

Rama09 [41]

$sin^{-1}0.88=61.642\ degrees$
There are pi radians in 180 degrees. Therefore to convert degrees to radians we need to divide by 180 and multiply by pi, as follows:
$\frac{61.642}{180}\times \pi=1.076\ radians$

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3 years ago

A vertical cylinder is leaking water at a rate of 4m3/sec. If the cylinder has a height of 10m and a radius of 2m, at what rate

Lyrx [107]

Answer:

Therefore the rate change of height is $\frac{1}{\pi}$ m/s.

Step-by-step explanation:

Given that a vertical cylinder is leaking water at rate of 4 m³/s.

It means the rate change of volume is 4 m³/s.

$\frac{dV}{dt}=4 \ m^3/s$

The radius of the cylinder remains constant with respect to time, but the height of the water label changes with respect to time.

The height of the cylinder be h(say).

The volume of a cylinder is $V=\pi r^2 h$

$=( \pi \times 2^2\times h)\ m^3$

$\therefore V= 4\pi h$

Differentiating with respect to t.

$\frac{dV}{dt}=4\pi \frac{dh}{dt}$

Putting the value $\frac{dV}{dt}$

$\Rightarrow 4\pi \frac{dh}{dt}=4$

$\Rightarrow \frac{dh}{dt}=\frac{4}{4\pi}$

$\Rightarrow \frac{dh}{dt}=\frac{1}{\pi}$

The rate change of height does not depend on the height.

Therefore the rate change of height is $\frac{1}{\pi}$ m/s.

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3 years ago

I will give 15-20 points if you answer this question. Pls be quick I'm doing a district snapshot.

snow_tiger [21]

Last one!
explanation is I remember having this question and studying this bad in middle school :)

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3 years ago

PLEASE HELP i’m desperate

gulaghasi [49]

Answer:

id : 237 514 2470

pwd : frmCV5

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3 years ago