1 year ago

Which angle in the figure is a right angle?

Mathematics

1 answer:

weeeeeb [17]1 year ago

7 0

Answer:

∠TUS I'm pretty sure because t and u make a right angle

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Please answer each one. <br><br><br> Disclaimer: don't do it for points

Gre4nikov [31]

Answer:

for question 1 the answer is 1.5 cm

for question 2 the answer is 0.75 cm

for question 3 the answer is 2.3 inches

for question 4 the answer is 3.3 inches

for question 5 the answer is 4 cm

for question 6 the answer is 0.75 inches

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2 years ago

If the dimensions of a rectangle are A plus 3b and A minus 3b what is the area of the rectangle

tresset_1 [31]

area=legnth times width

we notice this is a special case

(a+b)(a-b)=a^2-b^2

area=(a+3b)(a-3b)=a^2-9b^2

area=a^2-9b^2

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2 years ago

Tom has been given 35 chores to complete today. This morning he finished 7 of them. How many chores does he now have left to do

Brut [27]

35-7 = $\boxed{28}$

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2 years ago

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The rabbit population in a certain area is 200% of last year's population.There are 1,000 rabbits this year.how many were there

alexandr1967 [171]

the answer is 200%x=1000 which is =500 when you divide 1000 by 2. So 500 rabbits last year

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2 years ago

Find the amount of empty space within a cylinder containing three solid spheres, where each sphere has a radius of 3 cm. (Volume

aalyn [17]

Answer : The correct option is, (A) $54\pi cm^3$

Step-by-step explanation :

First we have to calculate the volume of cylinder.

Formula used:

Volume of cylinder = $\pi r^2h$

where,

r = radius = 3 cm

h = height = 18 cm (We are assuming that 3 solid spheres stacked to each other = 3 × diameter of each sphere = 3 × 2 × 3 = 18)

Volume of cylinder = $\pi (3cm)^2\times (18cm)$

Volume of cylinder = $162\pi cm^3$

Now we have to calculate the volume of 3 solid spheres.

Formula used:

Volume of 3 spheres = $3\times \frac{4}{3}\pi r^3$

Volume of 3 spheres = $4\pi r^3$

Volume of 3 spheres = $4\pi (3)^3$

Volume of 3 spheres = $108\pi cm^3$

Now we have to calculate the amount of empty space within a cylinder.

Amount of empty space within a cylinder = Volume of cylinder - Volume of 3 spheres

Amount of empty space within a cylinder = $162\pi cm^3-108\pi cm^3$

Amount of empty space within a cylinder = $54\pi cm^3$

Therefore, the amount of empty space within a cylinder is, $54\pi cm^3$

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3 years ago