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4 years ago

What’s 8.293 rounded to the hundredths

Mathematics

2 answers:

forsale [732]4 years ago

8 0

Your answer is 8.30 rounded to the nearest hundredth

anzhelika [568]4 years ago

4 0

Answer:

8.29

Step-by-step explanation:

It is 8.29 because the 3 is not greater than a 5, therefore it does not get rounded up.

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Enter your answer and show all the steps that you use to solve this problem in the space provided.

lora16 [44]

Answer:

Jana has to pay a total of $43.43 and receives a change of $6.57.

Step-by-step explanation:

Step 1: Add the cost of the dress and blouse

25.98+14.99=40.97

Step 2: Sales tax is adding to the cost of the blouse and dress.

40.97+2.46=43.43

So her total cost is 43.43 dollars

If she pays with a 50 dollar bill, you need to see how much more that is than the actual cost.

50-43.43=6.57.

She will receive 6.57 dollars for change

So Jana has to pay a total of $43.43 and receives a change of $6.57.

Hope this helps!

4 0

3 years ago

What is 7 im so confused

erastova [34]

Answer:

7 weeks

Step-by-step explanation:

John saves f(x) = 60+5x

Sarah saves g(x) =x^2 +46

They save the same amount of money

Set the equations equal

60+5x =x^2 +46

Subtract 60 from each side

60+5x -60 =x^2 +46-60

5x= x^2 - 14

Subtract 5x from each side

5x -5x= x^2-5x - 14

0 = x^2-5x - 14

Factor

0 = (x-7) (x+2)

Using the zero product property

x-7=0 x+2 =0

x=7 x=-2

Since we cannot have negative weeks

x=7

5 0

3 years ago

Approximate 47.96 to the nearest tenth

Iteru [2.4K]

Answer:

48.0

Step-by-step explanation:

8 0

3 years ago

As part of a science experiment, a student observes the growth of a population of bacteria in four different media. The table be

Margaret [11]

Answer:

Step-by-step explanation:

Here is the graph and I’m not sure if my answer is correct or not

8 0

3 years ago

There are three urns that each contain 10 balls. The first contains 3 white and 7 red balls, the second 8 white and 2 red, and t

malfutka [58]

Answer:

(a) 0.0520

(b) 0.3699

Step-by-step explanation:

Let $E_{1},E_{2},E_{3}$ be the events of selecting urn 1, urn 2 and urn 3 respectively.

So, $P(E_{1})=P(E_{2})=P(E_{3})=\frac{1}{3}$

Let W be the event of drawing a white ball.

Now, probability of drawing 2 white balls from urn 1 is given as:

$P(W\cap W \cap E_{1})=P(E_{1})\times P((W\cap W)/E_{1})\\P(W\cap W \cap E_{1})=\frac{1}{3}\times (\frac{3}{10})^{2}=\frac{9}{300}$

Probability of drawing 2 white balls from urn 2 is given as:

$P(W\cap W \cap E_{2})=P(E_{2})\times P((W\cap W)/E_{2})\\P(W\cap W \cap E_{2})=\frac{1}{3}\times (\frac{8}{10})^{2}=\frac{64}{300}$

Probability of drawing 2 white balls from urn 3 is given as:

$P(W\cap W \cap E_{3})=P(E_{2})\times P((W\cap W)/E_{2})=\frac{1}{3}\times 1=\frac{1}{3}$ ............. (as all balls are white only)

Now, probability of drawing 2 white balls is the sum of all the above probabilities and is given as:

$P(2W)=P(W\cap W \cap E_{1})+P(W\cap W \cap E_{2})+P(W\cap W \cap E_{3})\\P(2W)=\frac{9}{300}+\frac{64}{300}+\frac{1}{3}\\P(2W)=\frac{9}{300}+\frac{64}{300}+\frac{100}{300}=\frac{9+64+100}{300}=\frac{173}{300}$

(a)

Probability of selecting urn 1 given that 2 white balls are drawn is:

$P(E_{1}/2W)=\frac{P(E_{1})\times P(2W/E_{1})}{P(2W)}\\P(E_{1}/2W)=\frac{\frac{9}{300}}{\frac{173}{300}}=\frac{9}{173}=0.0520$

Therefore, probability of selecting urn 1 given that 2 white balls are drawn is 0.0250.

(b)

Probability of selecting urn 2 given that 2 white balls are drawn is:

$P(E_{2}/2W)=\frac{P(E_{2})\times P(2W/E_{2})}{P(2W)}\\P(E_{2}/2W)=\frac{\frac{64}{300}}{\frac{173}{300}}=\frac{64}{173}=0.3699$

Therefore, probability of selecting urn 2 given that 2 white balls are drawn is 0.3699

8 0

4 years ago