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zubka84 [21]
3 years ago
11

Helps i sucks at maths pwease help meh

Mathematics
2 answers:
trasher [3.6K]3 years ago
5 0

Answer:

A.

Step-by-step explanation:

Dimas [21]3 years ago
3 0

Answer:

1. D 2. C 3. D 4. A 5. The first 3

Hopes this helps!

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A survey was done that asked people to indicate whether they preferred to swim in a pool or in an ocean. The results are shown i
posledela
Given:
                                 Pool swimming        Ocean swimming    Total
Age 30 and younger             228                         54                 282
Over 30 years old                142                        185                 327
total                                    370                        239                609

Frequencies:
                                Pool swimming        Ocean swimming    Total
Age 30 and younger     228/609 = 0.37         54/609 = 0.09       282/609 = 0.46
Over 30 years old        142/609 = 0.23       185/609 = 0.30       327/609 = 0.54
<span>total                           370/609 = 0.61       239/609 = 0.39       609/609 = 1.00</span>

<span>The relative frequency (rounded to the nearest hundredth) of a person over 30 years old who prefers to swim in the ocean is 0.30</span>    
8 0
3 years ago
Read 2 more answers
Janet took out a loan of $50,000 from Bank of America at 8% on March 19, 2015, which is due on July 8, 2015. Using exact interes
Paladinen [302]
The formula for this is I = PRT
I = Interest
P = Principal (starting amount) = $50,000
R = Rate (percentage) = 8% = .08
T = Time in years = days/years = 111/365

I = 50000(.08)(111/365)
I = $1216.438 
I = $1216.44 (rounded)


5 0
3 years ago
Help me with this please
sergejj [24]
R’(4,-5)
S’(4,-6)
T’(3,-4)
6 0
3 years ago
The width of a rectangle is 12cm less than the length. the perimeter is 156cm. what is the width?
ser-zykov [4K]

Answer:

25526

Step-by-step explanation:

5-=6haj

7 0
3 years ago
The total surface area of a hemisphere is 45<br><img src="https://tex.z-dn.net/?f=%5Cpi%5Cp" id="TexFormula1" title="\pi\p" alt=
rjkz [21]

Answer:

The volume of the hemisphere  

       V = 121.33086 cubic centimeter

Step-by-step explanation:

<u>Step(i)</u>:-

Given that the total surface area of a hemisphere = 45π cm²

<em> The total surface area of a hemisphere = 3π r²</em>

Equating

              3π r² = 45π

                   r^{2} = \frac{45}{3} =15

                    r = \sqrt{15} = 3.87

The radius of the sphere 'r' = 3.87

<u><em>Step(ii):-</em></u>

<em>The volume of the hemisphere</em>

                 V = \frac{2}{3} \pi r^{3}

                V = \frac{2}{3} \pi (3.87)^{3}

we know that   π = 3.14

                V = \frac{2}{3}  (3.14) (3.87)^{3}

               V = 121.33086 cubic centimeter

               

         

7 0
3 years ago
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