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3 years ago

Please help , I would sincerely appreciate it

Mathematics

1 answer:

kozerog [31]3 years ago

5 0

Answer:

B . S /2rh =pi

Step-by-step explanation:

S = 2* pi * r*h

We are solving for pi

Divide both sides by 2rh to isolate pi

S/ 2rh = 2 * pi *r* h / 2rh

S /2rh =pi

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the total cost of 4 pens at rs 20 each,5 pencils at Rs 5 each and 2 boxes at rs 60 each.make equation and solve (INTEGERS) plsss

Julli [10]

Answer:

225 rs

Step-by-step explanation:

cost of 1 pen = 20 rs

total cost of 4 pens = 20×4= 80 rs

cost of 1 pencil = 5 rs

total cost of 5 pencils = 5×5 = 25 rs

cost of 1 box = 60 rs

total cost of 2 boxes = 60×2 = 120 rs

Total= 80+25+120 = 225 rs

4 0

3 years ago

Somebody please help me

jolli1 [7]

Answer:

A). Scale factor = $\frac{1}{4}$

B). Length of the unknown side = 2.75 feet

Step-by-step explanation:

Part A

Since, the large rectangle was scaled by a scale factor 'k' to form the smaller rectangle,

Scale factor = $\frac{\text{Side length of the image}}{\text{Side length of the preimage}}$

= $\frac{\text{Side length of the smaller rectangle}}{\text{Side length of the larger rectangle}}$

= $\frac{4}{16}$

= $\frac{1}{4}$

Part B

Scale factor = $\frac{\text{Side length of the smaller rectangle}}{\text{Side length of the larger rectangle}}$

$\frac{1}{4}=\frac{\text{Side length of the smaller rectangle}}{11}$

Therefore, side length of the unknown side = $\frac{11}{4}$ = 2.75 feet

8 0

3 years ago

The perimeter of a square of side 5 cm is 25 cm.<br>O True<br>O Falsethe perimeter of a circle

larisa [96]

Answer:

false

Step-by-step explanation:

I would assume false as if each of the fours sides of the square are 5 cm, then doing the equation 5×4 (unsing 4 for the each of the congruent sides) would give up 20 cm.

4 0

3 years ago

Question 3 of 20

olchik [2.2K]

I think it’s C but it could be D.. i would go with C tho

3 0

3 years ago

A silo is formed by a cylinder with a hemisphere at the top. If the height of the silo is 10 m and the radius is 3 m, what is th

IrinaVladis [17]

V=282.74m³

Radius= 3m
Height= 10m

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3 years ago