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3 years ago

Silvia asked 180 students what their favorite flavor of ice cream was. Exactly 55% of

Mathematics

1 answer:

Slav-nsk [51]3 years ago

6 0

Answer: 99

Step-by-step explanation:

55/100 = 0.55

0.55 * 180 = 99

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Why is (-3,6] a better answer than (-3,6)

Pani-rosa [81]

(-3, 6) includes all numbers between -3 and 6 but it does not include -3 and 6.

when you put square parentheses you include the number on the edge

so if an anwser includes all numbers between -3 and 6 and the number 6 it's correct to write (-3,6]

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1 year ago

Two fifths of the children in the nursery were boys. What was the ratio of boys to girls in the nursery?

Shtirlitz [24]

The answer would be 2:3

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3 years ago

How much water is needed to fill a cylinder? This question is asking you to calculate the _____.

elena55 [62]

Answer:

volume

of course, how much water is asking about the capacity of cylinder, meaning it's volume in this case.

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2 years ago

In a circle, area and circumference can be found using the formulas A=(pi)r^2 and C=2(pi)r, respectively, Write a formula for A

AURORKA [14]

Answer:

$A = \dfrac{C^2}{4\pi}$

Step-by-step explanation:

Given that

Area of a circle $A=\pi r^2$

Circumference of the circle $C = 2 \pi r$

Let us re-write the equation of area of circle:

$A=\pi r^2$

$A = \pi \times r \times r$

Multiplying and dividing with 2:

$A = \dfrac{2\pi r}{2} \times r\\\text{Putting }2\pi r = C:\\\Rightarrow A = \dfrac{C}{2} \times r\\\text{Multiplying and dividing by } 2\pi:\\\Rightarrow A = \dfrac{C}{2} \times \dfrac{2\pi r}{2\pi}\\\text{Putting }2\pi r = C:\\\Rightarrow A = \dfrac{C \times C}{4 \pi}\\\Rightarrow A = \dfrac{C^2}{4 \pi}$

Hence, A in terms of C can be represented as:

$A = \dfrac{C^2}{4\pi}$

4 0

3 years ago

PLEASE HELP ME BRO Find the perimeter of this shape and show ur work.

mylen [45]

Answer:

2 (length +breadth)

Step-by-step explanation:

2(2x+3) (x+1)

Multiply two on both sides and solve it

5 0

2 years ago