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Rasek [7]
3 years ago
7

For a circle of radius 4 feet, find the length of an arc in terms of pi with a measure of 60 degrees

Mathematics
1 answer:
vesna_86 [32]3 years ago
5 0
All you have to do is multiply 4*2 and it’ll be 8 then you have to multiply it by 3.14 because pie is 3.14 and the answer will be 25.12
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Find the length of a diagonal of a square of side 17cm
Ronch [10]

Answer:

2*17²=length=578

apply Pythagoras theorem

8 0
2 years ago
Assume that an average cell has a diameter of
emmasim [6.3K]

Given that the volume of a cell is 50 cubic micrometers. It says to find the number of cells present in 1 cubic centimeter.

So we need to first convert the units of volume of a cell, then we can find the total number of cells in 1 cubic centimeter.

We know 1 meter = 100 centimeters = 1000000 micrometers

So 1 centimeter = 10000 micrometers

Taking Cubic powers on both sides :-

1 cubic centimeters = 10¹² cubic micrometers

1 cubic micrometers = 10⁻¹² cubic centimeters

50 cubic micrometers = 50 × 10⁻¹² = 5 × 10⁻¹¹ cubic centimeters

So volume of one cell = 5 × 10⁻¹¹ cubic centimeters

Number of cells = \frac{Total\;\; volume}{Volume\;\; of\;\; one\;\; cell}  = \frac{1\;cm^{3}}{5 * 10^{-11}\;cm^{3}} = \frac{10^{11}}{5} = 2 × 10¹⁰ cells.

So, total number of cells = 2 × 10¹⁰ cells.

4 0
3 years ago
At the city museum, child admission is $5.10 and adult admission is $9.60. On Monday, twice as many adult tickets as child ticke
galina1969 [7]

Answer:

23

Step-by-step explanation:

The amount of children's tickets is x, while the amount of adults' tickets is 2x

5.1*x- the amount of money from children

9.6*2x= 19.2x- the amount of money from adults

5.1x+19.2x= 558.9

x=23 - child tickets

8 0
3 years ago
Hugo works in a shop.
slava [35]

Answer:

£111

Step-by-step explanation:

Money earned on saturday: 9*7=63

Money earned on sunday:4*9*1\frac{1}{3}=48

48+63=111

plz mark branliest

6 0
3 years ago
Read 2 more answers
Kellogg's produced 715000 boxes of cornflakes this year. This was 110% of annual production last year. What was last year's annu
Charra [1.4K]
Let last year product be x boxes.

110% of x means \displaystyle{  \frac{110}{100}\cdot x.

Thus, we solve the equation:

                                  \displaystyle{ \frac{110}{100}\cdot x=715,000.

Multiplying both sides by  \displaystyle{ \frac{100}{110}, we have:

                    \displaystyle{ x=715,000 \cdot \frac{100}{110}=650,000.


Answer: Last <span>year's annual production was 650,000 boxes.</span>
6 0
3 years ago
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