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Over [174]
3 years ago
15

Which expression is equal to square root of 80

Mathematics
1 answer:
Anton [14]3 years ago
5 0
It’s D 6 square root 5
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krok68 [10]
C. 0.25 because you divide 0.06 by 0.24
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Mario ran a race in 24 minutes. Express Mario's time in terms of hours.
GarryVolchara [31]
Close to 1/4 of an hour
7 0
3 years ago
The largest z-score available in most tables is 2.99, which corresponds to a probability of 99.86%. A fair coin is
lana66690 [7]

Answer:

The number of heads observed is 121.14 heads

Step-by-step explanation:

The formula for the z-score of a proportion is given as follows;

z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{pq}{n}}}

Where:

{\hat{p} = Sample proportion

p = Population success proportion = 0.5

q = 1 - p = 1 - 0.5 = 0.5

n = Number in of observation = 200

z = 2.99

Hence, we have;

z=\dfrac{\hat{p}-0.5}{\sqrt{\dfrac{0.5 \times 0.5}{200}}} = 2.99

Therefore;

{\hat{p}-0.5}{} = 2.99 \times \sqrt{\dfrac{0.5 \times 0.5}{200}} = 2.99 \times\dfrac{\sqrt{2} }{40}

{\hat{p} = 0.6057

Whereby \ \hat p = \dfrac{Number \ of \ heads}{Number \ of \ observation} =  \dfrac{Number \ of \ heads}{200} = 0.6057

∴ The number of heads observed = 200 × 0.6057 = 121.14 heads.

5 0
3 years ago
need help 5 minutes only answer this question: A line is defined by the equation 2 x + y = 4. Which shows the graph of this line
Over [174]

Answer:

I cant see your graphs because my admin blocked them but here.

Step-by-step explanation:

I hope this helps!

3 0
3 years ago
Read 2 more answers
tanya baked 100 cupcakes one morning in a bakery. She used 64 ounces of frosting to decorate the cupcakes. If each cupcake had t
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Answer:

0.64 ounces

Step-by-step explanation:

64 ounces in total ÷ 100 equal sized cupcakes

Hope my explanation helped

7 0
3 years ago
Read 2 more answers
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