MATHEMATICS MIDDLE SCHOOL

A cone has a diameter of 8 cm. and a height of 4cm.   If the height doubles then the volume is: a) four times largerb) three times as large
c) Twice as large
d) The same

Answers

Answer 1
Answer: the answer is c
its because volume of cone isπr²h
 given d=8cm i.e r= 4cm  h= 4cm
by applying the formulae 22/7×4×4×4=201
if the height is doubled the
h=8cm r = 4cm
again by applyng the same formulae
22/7×4×4×8=402
thus we can conclude that 
   if the height is doubled then the volume will be doubled
       i hope i helped u.
Answer 2
Answer: The answer is c.

As we know, volume of cone = 1/3 πr²h

As we can see from the equation, volume of cone is directly proportional to the height. Thus, as the height increases, volume also increases.

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Answers

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I WILL MAKE YOU BRAINLIEST!!!!Triangle STU is formed by the three squares D, E, and F:



Which statement best explains the relationship between the sides of triangle STU?


ST + TU = SU, because 36 + 64 = 100

(ST)2 + (TU)2 = (SU)2, because 102 + 62 = 82

ST + TU = SU, because 102 + 62 = 82

(ST)2 + (TU)2 = (SU)2, because 36 + 64 = 100

Answers

Answer:

(ST)^2 + (TU)^2 = (SU)^2 because 36 + 64 = 100

Step-by-step explanation:

Triangle STU is a right angled triangle because it is formed squares D, E and F.

This means the sum of the squares of the sides of a triangle is the square of the hypotenuse. This is also  called the Pythagorean theorem.

Therefore, (ST)^2 + (TU)^2 = (SU)^2 because 36 + 64 = 100

which satisfies the relationship between the sides of the triangle STU.

Answer: It is D give him Brainliest.

Step-by-step explanation:

Mike is building a new deck in his backyard with the dimensions shown in the diagram. He needs to determine how manysquare feet of lumber needs to be purchased. Find the total area of the deck.
A)25 ft2
B)50 ft2
C)7512
D) 125 f2

Answers

Answer:

D) 125 ft^2

Step-by-step explanation:

We wil accept the shape as a rectangle to ease things up,

We find the area of rectangle by multiplying height × width

15×10 = 150

since it's not a complete rectangle we subtract 5×5 = 25 from 150

Therefore the area of the deck is 125 ft^2
The total area of the deck is D) 125 ft^2

Justin works as a car salesman. Last week he had a total of 42,000 dollars in sales. if his Commission is 2 percent how much did Justin earn and last week?

Answers

2 percent of 42,000 dollars = $840 (ans)

Answer:

2% of $42,000 = $840

Step-by-step explanation:

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Answers

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Find the total price a $3.29 bad of chips after 7% tax

Answers

Answer:

$3.52

Step-by-step explanation:

3.29 * .07 = .23

.23 + 3.29 = 3.52
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