I need help on this question plz

Mathematics

1 answer:

san4es73 [151]3 years ago

6 0

When there are a number of similar calculations to do, it is convenient to program a calculator or spreadsheet to do them for you. The formula for the volume (V) of a cylinder in terms of height (h) and radius (r) is

... V = π·r²·h

You simply need to substitute the given values and determine if the result is greater than 50. For glass A, this looks like

... V = 3.14·2.25²·3 = 47.68875 . . . . . less than 50, so too small

The volumes of the other glasses are calculated in the attachment.

glass B: large enough

glass C: too small

You might be interested in

Can anyone please help with these 2 questions. If you can, please show step-by-step.

valentinak56 [21]

Answer:

1. x = 21

2. m∡ABC = 51°

Step-by-step explanation:

First problem, solve for x

the sum of inside angles of a triangle is 180

also the supplementary angle for L = 180 - 100 is 80°

now you can add all angles

80 + 2x - 11 + 2x + 27 = 180

4x + 96 = 180

4x = 84

x = 21

Second problem, solve for m∡ABC

the sum of inside angles of a triangle is 180

also the supplementary angle for C = 180 - 148 is 32°

now you can add all angles

31 + 2x - 15 + x - 5 = 180

3x + 12 = 180

3x = 168

x= 56,

now solve for m∡ABC = (x - 5)° = (56 - 5)° = 51°

8 0

3 years ago

Read 2 more answers

The circumference of the earth is about 25,000 miles. Approximately how far is it from any point on the earth's surface to its c

ELEN [110]

Since C = 2rπ

if the C of earth = 25000 miles

then the r = C ÷ (2π)
= 25,000 miles ÷ 2π
= 12500 ÷ π
≈ 3978.87358 miles

Since radius is a measure of the distance from the center to any point on the circle then that distance would be about 3978.8736 miles<span />

5 0

3 years ago

Rationalise the denominator 5 by√7-√5

taurus [48]

i wasn't sure on how to explain it so i just attached ur answer