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3 years ago

Need help plzz 20 points

Mathematics

2 answers:

photoshop1234 [79]3 years ago

6 0

Answer:

42 cm

Step-by-step explanation:

Area of rectangle (shaded area):

length × breadth

length: 7 cm

breadth: 7 - 2(0.5) = 6 cm

7 × 6 = 42 cm

Firlakuza [10]3 years ago

3 0

Answer:

42 cm is the correct answer of this one

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The formula s = StartRoot StartFraction S A Over 6 EndFraction EndRoot gives the length of the side, s, of a cube with a surface

never [62]

Answer:

$2\sqrt{2}\ ft\ longer$

Step-by-step explanation:

Suppose a cube with side length s, the area of one side is

$A_s=s^2$

Since the cube has 6 sides, the total area is

$A=6A_s=6s^2$

But if we have the area, we can solve the above formula for s to get

$A=6s^2$

$\displaystyle s=\sqrt{\frac{A}{6}}$

We have two different cubes with areas 1,200 square inches and 768 square inches. Let's compute their side lengths

$\displaystyle s_1=\sqrt{\frac{1,200}{6}}=\sqrt{200}$

$\displaystyle s_1=10\sqrt{2}\ ft$

$\displaystyle s_2=\sqrt{\frac{768}{6}}=\sqrt{128}$

$\displaystyle s_2=8\sqrt{2} ft$

The difference between them is

$10\sqrt{2}\ ft-8\sqrt{2}\ ft=2\sqrt{2}\ ft\approx 2.83\ ft$

The side of the cube with area 1,200 square inches is $2\sqrt{2}\ ft$ longer then the side of the cube with area 768 square inches

7 0

3 years ago

Read 2 more answers

An ice chest contains 3 types of drinks: 10 apple juries 15 grape juices and 15 bottles of water what is the probability of gett

Anna [14]

Answer: $\dfrac{3}{8}$

Step-by-step explanation:

Given: An ice chest contains 3 types of drinks: 10 apple juries 15 grape juices and 15 bottles of water.

Total drinks= 10+15+15 = 40 (Total outcomes)

Number of drink that does not contain fruit juice = Number of bottles of water = 15 (Favorable outcomes)

The probability of getting a drink that does not contain fruit juice = $\dfrac{Favorable\ outxcomes}{Total\ outcomes}$

$=\dfrac{15}{40}\\\\=\dfrac{3}{8}$

So, the required probability = $\dfrac{3}{8}$ .

7 0

2 years ago

captain ishaan has a ship, the H.M.S Crimson Lynx. the ship is four furlongs from the dread pirate Michael and his merciless ban

Aleksandr [31]

Answer:

the answer is 0.

Step-by-step explanation:

this is correct i just did the problem on khan

3 0

3 years ago

Read 2 more answers

What's the answer to this

julia-pushkina [17]

The answer to number 5 would be negative 8 and 1/12.
Hope this helps!!

3 0

3 years ago

1) (19, −16), (-7, -15) what is the slope of the line through each pair of points

antiseptic1488 [7]

The slope of the line which passes through (19,-16) and (-7,-15) is -1/26.

Given that the points through which the line passes is (19,-16) and (-7,-15).

We are required to find the slope of the line which passes through (19,-16) and (-7,-15).

The slope of a line is basically a measure of its steepness.It is basically the difference between y coordinate divided by the difference between x coordinate. We can form an equation with the help of the slope.

Points=(19,-16) and (-7,-15)

Slope=(-15+16)/(-7-19)

=1/-26

=-1/26

Hence the slope of the line which passes through (19,-16) and (-7,-15) is -1/26.

Learn more about slope at brainly.com/question/3493733

#SPJ9

5 0

1 year ago