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2 years ago

NEEEEEEEEDDDDDDDDS HELLLPLLPP

Mathematics

1 answer:

Morgarella [4.7K]2 years ago

3 0

We know that angle2+angle3+90=180 (since we see the right angle in the corner and all internal angles add up to 180) so

angle3=40
subsitute
angle2+40+90=180
angle2+130=180
subtract 130
angle2=50
answer is 50 degrees

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A sphere is just enclosed inside a right circular cylinder. If the volume of the sphere is 140 cm3, find the volume of the gap b

alexgriva [62]

-----------------------------------------------------------
Find Radius :
-----------------------------------------------------------
$\text {Volume of a sphere =} \dfrac{4}{3} \pi r^3$

$\dfrac{4}{3} \pi r^3 = 140$

$\pi r^3 = 140 \times \dfrac{3}{4}$

$\pi r^3 = 105$

$r^3 = \dfrac{105}{ \pi}$

$r = 3.22 \ cm$

-----------------------------------------------------------
Find volume of the cylinder :
-----------------------------------------------------------
$\text {Volume of the cylinder = } \pi r^2h$

$\text {Volume of the cylinder = } \pi ((3.22)^2(3.22 \times 2)$

$\text {Volume of the cylinder = } 209.77 \ cm^3$

-----------------------------------------------------------
Find volume of the gap :
-----------------------------------------------------------
$\text {Volume of gap = } 209.77 - 140$

$\text {Volume of gap = } 69.77 \ cm^3$

-----------------------------------------------------------
$\bf \text {Answer : } 69.77 \cm^3$
-----------------------------------------------------------

6 0

3 years ago

Type the correct answer in each box

levacccp [35]

Answer:

76589607+789607p8=2

Step-by-step explanation:

3872oed0w89p23-98937ey9tg=2

4 0

2 years ago

How do you write 4/6 as a unit fraction

lawyer [7]

Answer:

1/6

Step-by-step explanation:

1/6 + 1/6 + 1/6 + 1/6 = 4/6. A unit fraction has a numerator of 1 so since 4 is the numerator in 4/6 You should add 1/6 four times.

Hope this helps!

Brain-List?

3 0

3 years ago

Read 2 more answers

Will give brainliest

Ipatiy [6.2K]

Answer is mot likely A

6 0

2 years ago

Read 2 more answers

If x varies inversely as y and x=2.5 when y = 40 , find y when x = 2

Illusion [34]

Answer:

2.5/40=2/y

2.5y=40x2

2.5y=80

y=80/2.5

y=32

6 0

2 years ago