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3 years ago

What is 39.79949748 rounded to the nearest hundredth?

Mathematics

1 answer:

Rufina [12.5K]3 years ago

3 0

Answer:

$Number = 39.80$

Step-by-step explanation:

Given

$Number = 39.79949748$

Required

Approximate (to the nearest 100th)

This means that, we approximate at the second digit after the decimal.

So:

i.e,

Number = 39.79 [Begin approximation] 949748

The first digit after [Begin approximation] is then approximated using the following rule:

$0 - 4 \approx 0$

$5 - 9 \approx 1\\$

Since 9 falls in $5 - 9 \approx 1\\$ category, the number becomes:

$Number = 39.[79+1]$

$Number = 39.80$

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Tariq also designs hot tubs. The diameter of the hot tub is 3 meters. What is the area of the deck that surrounds the hot tub? I

lutik1710 [3]

Answer:

C. 17.9

Step-by-step explanation:

First you have to find the area of the circle, to then subtract it from the area of the square around it.

To get the area of the circle you must take the radius(half of the diameter) and square it. 3^2 is 9. Then you mutiply that by Pi( 3.14). Which is 7.07.

Next you have to subtract that from the area of the square deck.

25-7.07=17.9

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3 years ago

Read 2 more answers

What property is -3(m+8)=-3m-24

Damm [24]

Answer:

All real numbers are solutions.

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

−3(m+8)=−3m−24

(−3)(m)+(−3)(8)=−3m+−24(Distribute)

−3m+−24=−3m+−24

−3m−24=−3m−24

Step 2: Add 3m to both sides.

−3m−24+3m=−3m−24+3m

−24=−24

Step 3: Add 24 to both sides.

−24+24=−24+24

0=0

Answer:

All real numbers are solutions.

8 0

3 years ago

A new surgery is successful 70% of the time , if the results of 8 such surgeries are randomly sampled, what is the probability t

il63 [147K]

Answer:

P (x>5) = 0.5324014=0.523

Step-by-step explanation:

Here success = p= 0.7 and failure = q= 1-p= 1-0.7 = 0.3

Number of surgeries= n= 8

Applying the binomial distribution

( p+q) ^n= nC x p^x . q^n-x

More than 5 means 6,7, and 8

( p+q) ^8= 8C 5 (0.7)^5 . (0.3)^3

=56* 0.16807*0.027

= 0.254121

( p+q) ^8= 8C 6 (0.7)^6 . (0.3)^2

= 28* 0.1177* 0.09

= 0.296604

( p+q) ^8= 8C 7 (0.7)^7 . (0.3)^1

= 8* 0.0824* 0.3

= 0.19776

( p+q) ^8= 8C8 (0.7)^8 . (0.3)^0

= 1* 0.05765* 1

=0.05765

Adding the above all probabilities gives

P (x>5) = P (x=6) + P(x=7) + P(x=8)

= 0.296604+0.19776+0.05765

= 0.5324014

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3 years ago

Steven's Diner sold 60 milkshakes last week. 25% of the milkshakes had whipped cream on top. How many milkshakes with whipped

denis-greek [22]

Answer:

the answer is 15.

Step-by-step explanation:

you find the answer by turning 25% into 0.25 then you multiple it by 60, this results in 15.

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3 years ago

2 square times 3 square times 5 square is the prime factorization of what composite number?

yanalaym [24]

Is this suppose to be for elementary because I'm in middle school and I got 900 2^2*3^2*5^2=900

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3 years ago