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3 years ago

14

Change 2 21/9 to an improper fraction

2 answers:

ivanzaharov [21]3 years ago

8 0

Answer: 13/3

Step-by-step explanation: TO turn a mixed number into an improper fraction, the best way is to multiply the denominator of the fraction by the whole number, then add the product to the numerator, then use that as the numerator of your new improper fraction, keeping the denominator the same.

>2 21/9

> 9*2 +21 =39

> 39/9

>13/3

levacccp [35]3 years ago

4 0

U have to multiply 2 times 9 and you’ll get 18, but then you have to add 18 and 21 and you’ll get 39, but you keep 9 as the denominator. So your answer would be 39/9.

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The formula for the volume of a right circular cone is shown. Rewrite the formula so that it expresses the height h in terms of

zlopas [31]

Height of cone in term of volume is 3V / πr²

<u>Given that;</u>

Volume of cone = (1/3)(πr²h)

<u>Find:</u>

Height of cone

<u>Computation:</u>

We know that;

Volume of cone = (1/3)(πr²h)

We have to calculate height from above given formula.

V = (1/3)(πr²h)

3V = πr²h

3V / πr² = h

So,

Height of cone = 3V / πr²

<em>Height of cone</em> in term of volume = 3V / πr²

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8 0

2 years ago

What is the difference when the product of 0.3 and 0.4 is subtracted from the sum of 0.3 and 0.4?

Rudik [331]

Answer:

0.58

Step-by-step explanation:

The first approach to solving the question above is to find the product of 0.3 and 0.4 thus:

$0.3 \times 0.4 = 0.12$

Next step is to find the sum of 0.3 and 0.4 thus:

$0.3 + 0.4 = 0.7$

The final step is to find the difference between the two results. Thus:

$0.7 - 0.12 = 0.58$

Therefore, the product of 0.3 and 0.4 subtracted from the sum of 0.3 and 0.4 is 0.58

7 0

2 years ago

Correct answer only plz thank you!

strojnjashka [21]

Answer:

B

Step-by-step explanation:

GI is made up of the segments GH and HI. In other words:

$GI=GH+HI$

We know that GH is 2 and GI is 7. Substitute:

$7=2+HI$

Subtract 2 from both sides:

$HI=5$

So, our answer is B.

And we're done!

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3 years ago

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NISA [10]

Answer:

______the answer is Y=0.25X+3

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2 years ago

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Tems11 [23]

Answer:

The margin of error for a sample size of 250 is 6

Step-by-step explanation:

The margin of error is given as

1/square root of the sample size

Thus, margin of error for a sapless size of 250 is

1/√250

= 1/15. 811

= 6

8 0

3 years ago