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3 years ago

6

Joe drops a pebble into the sea. The pebble drops 2 inches every second. How many inches below sea level does it drop after 6 se

conds?

1 answer:

stellarik [79]3 years ago

7 0

Answer:

12 inches

Step-by-step explanation:

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How much surface area would be lost if you glued three 4-cm cubes together to make a rod that is three cubes long and one cube w

Kipish [7]

Answer:

Part 3) $SA=288\ cm^2$

Part 4) $64\ cm^2$

Step-by-step explanation:

Part 3) Calculate the total surface area of three 4 cm cubes

we know that

The surface area of a cube is equal to the area of its six square faces

$SA=6b^2$

so

The surface area of three cubes is equal to the area of its 18 square faces

$SA=18b^2$

where

b is the length side of the square face

In this problem

$b=4\ cm$

so

The surface area of three cubes is

$SA=18b^2$

substitute the given value

$SA=18(4)^2$

$SA=288\ cm^2$

Part 4) How much surface area would be lost if you glued three 4-cm cubes together to make a rod that is three cubes long and one cube wide?

In this case the total surface area of the three glued 4-cm cubes is equal to the area of its 14 square faces

so

The surface area lost is equal to

$18b^2-14b^2=4b^2$

substitute

$4(4)^2=64\ cm^2$

6 0

3 years ago

What is the remainder when 14,952 is divided by 41

Bingel [31]

The answer for this question would be 28

3 0

3 years ago

Read 2 more answers

(5+6p)(2)= IXL simplify the expression

Nadya [2.5K]

10+12p is the answer to that IXL problem

8 0

3 years ago

The diagram shows a 7cm x 6cm rectangle-based pyramid all the diagonal sides - TA TB TC and TD are length 10cm M is the midpoint

dedylja [7]

Given:

The base is a rectangle of dimension 7 cm×6 cm.

The length of each diagonal side = 10 cm

To find the height of MT.

Formula

By Pythagoras theorem we get,

$h^{2} = l^{2} + b^{2}$

where, h be the hypotenuse

b be the base and

l be the height.

Now, in this diagram,

The perpendicular distance of M from BC = 3 cm

Slant height = 10 cm

Taking, b = 3 and h = 10 we get,

$10^{2} = l^{2} + 3^{2}$

or, $l^{2} = 10^2-3^2$

or, $l = \sqrt{100-9}$

or, $l = 9.5$

Hence,

The height of MT is 9.5 cm.

4 0

3 years ago

Please hepl???<br>I will mark brainliest

zepelin [54]

Answer:

x = 59

Step-by-step explanation:

180 = 73 + x + (x-11)

180 - 73 + 11 = 2x

118 = 2x

x = 118/2

x = 59

3 0

3 years ago