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3 years ago

can you run the answers plzzz ill give extra points because of your work and helping me please this stressful plzzz help

Mathematics

1 answer:

sashaice [31]3 years ago

3 0

The product is 1487.9286. Since we're dealing with money, there can Only be 2 numbers after the decimal point, so you'd round it to £1487.93

To estimate you would do 50x30, which equals 1500. That would make it £1500(or dollars or whatever it's the same number).

I think the mixed number would be 1487 pounds and 93 pence (again dollars or whatever it's the same number).

Then the multiply is just the product.

Hope I helped :)

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42. A cylinder has a base of 36 π in² and a volume of 432π in³. What is the surface area of the same cylinder? *

faust18 [17]

Answer:

216π in²

Step-by-step explanation:

Base area = π × r²

36 π = π × r²

r² = 36

r = 6

Volume = base area × height

432 π = 36 π × height

height = 12

Surface area:

2 × π × r × (r + h)

2π × 6 × (6 + 12)

216π

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3 years ago

Mike and Beth both write the decimal 0.8 (0.88888...)as a fraction. Mike: 45 Beth: 89 Which student wrote the correct fraction?

fenix001 [56]

Answer:

see the explanation

Step-by-step explanation:

we have

0.888...

This is a repeating decimal (Is a decimal that has a digit, or a block of digits, that repeat over and over and over again without ever ending)

Convert to fraction number

Let

x=0.888...

10x=8.888...

Subtract 0.888... from 8.888... to remove the decimal

10x-x=8.888...-0.888...

9x=8

Solve for x

x=8/9

therefore

Mike fraction is incorrect

because 4/5=0.8

0.8 is a terminating decimal (It's a decimal with a finite number of digits)

Mike's mistake was considering the number as a terminating decimal instead of a repeating decimal

Beth is correct

because

If you divide 8/9

the result is 0.8888888...

3 0

3 years ago

Keisha has a straightedge and a compass, but no protactor. what kind of angle can Keisha drag exactly with only these two tools?

nekit [7.7K]

A 90˚ angle
a 180 angle

6 0

3 years ago

A social scientist wishes to conduct a survey. She plans to ask a yes/no question to a random sample from the U.S. adult populat

agasfer [191]

Answer:

The sample proportion from the sample of 900 is more likely to be close to the true population proportion, p.

Step-by-step explanation:

for the first one

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3 years ago

Read 2 more answers

Pls solve this qn..............ASAP PLS DON'T SPAMMMMM!!

Anni [7]

Probability ( a flowering plant or fruit plant) is $\frac{13}{30}$ and Probability (neem plant or peepal plant) is $\frac{29}{60}$ .

Step-by-step explanation:

Given,

Number of neem plant = 125

Number of peepal plant = 165

Number of creppers plant = 50

Number of fruit plant = 150

Number of flowering plant = 110

To find the probability ( a flowering plant or fruit plant)

and probability ( neem or peepal)

Formula

P( A or B) = P(A) + P(B)

Probability ( a flowering plant or fruit plant) = $\frac{110}{600} + \frac{150}{600}$

= $\frac{260}{600}$ = $\frac{13}{30}$

And,

Probability (neem plant or peepal plant) = $\frac{125}{600} +\frac{165}{600}$

= $\frac{290}{600}$ = $\frac{29}{60}$

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3 years ago