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3 years ago

Please help me with this

Mathematics

1 answer:

aleksandr82 [10.1K]3 years ago

5 0

There are 20 squares, 6 are filled in. This makes a fraction of 6/20. To get percent multiply the numerator and denominator by 5 to give you a denominator of 100 and a numerator of 30. The answer is 30%.

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Rewrite as a power 1 7/9

Morgarella [4.7K]

Answer:

$1\frac{7}{9} =\frac{16}{9} =[\frac{4}{3}] ^{2}$

Step-by-step explanation:

6 0

3 years ago

73km 47hm 2dam - 11km 55hm

zvonat [6]

Answer

6,122 hm

Explanation

You can carry out operations on the like terms only. So convert all units to one unit.

I will convert them to dam

1 km =100 dam

73 km = 73 × 100

=7,300 dam

11 km = 11× 100

1100 dam

1 hm = 10 dam

47 hm = 47 × 10

= 470 dam

55 hm = 55× 10

= 550 dam

73km 47hm 2dam - 11km 55hm = (7300+ 470+2) - (1100+550)

= 7,772 - 1,650

= 6,122 hm

8 0

3 years ago

5. Suppose that a particular candidate for public office is in fact favored by p = 48% of all registered voters. A polling organ

mart [117]

Answer:

Probability that the sample proportion will be greater than 0.5 is 0.8133.

Step-by-step explanation:

We are given that the a particular candidate for public office is in fact favored by p = 48% of all registered voters. A polling organization is about to take a simple random sample of voters and will use the sample proportion to estimate p.

Suppose that the polling organization takes a simple random sample of 500 voters.

Let $\hat p$ = sample proportion

The z-score probability distribution for sample proportion is given by;

Z = $\frac{ \hat p-p}{\sqrt{\frac{\hat p(1-\hat p)}{n} } }$ ~ N(0,1)

where, $\hat p$ = sample proportion

p = population proportion = 48%

n = sample of voters = 500

The Z-score measures how many standard deviations the measure is away from the mean. After finding the Z-score, we look at the z-score table and find the p-value (area) associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X.

So, probability that the sample proportion will be greater than 0.5 is given by = P( $\hat p$ > 0.50)

P( $\hat p$ > 0.50) = P( $\frac{ \hat p-p}{\sqrt{\frac{\hat p(1-\hat p)}{n} } }$ < $\frac{0.50-0.48}{\sqrt{\frac{0.50(1-0.50)}{500} } }$ ) = P(Z < 0.89) = 0.8133

Now, in the z table the P(Z $\leq$ x) or P(Z < x) is given. So, the above probability is calculated by looking at the value of x = 0.89 in the z table which has an area of 0.8133.

Therefore, probability that the sample proportion will be greater than 0.50 is 0.8133.

6 0

3 years ago

Question 1

gulaghasi [49]

Answer:

Step-by-step explanation:

A function is where each input has a single output.

(A) There can be a different amount of students in a class (e.g. 21 or 22) that have the same class length

(B) There can be multiple things that Mike can order with $1

(D) There can be multiple students have the same GPA

8 0

3 years ago

In Mona’s new video game she earns 30 points for each fish caught and 80 points for each octopus captured, but she loses 15 poin

Aleksandr-060686 [28]

If x is fish, y is octopi, and z is crabs, then you would have to know the numbers.
Then your answer would be c. 30x+80y-15z.
Because x=+30, y=+80, and z=-15.
I hope that helps. If you need any further help on this problem just ask.

5 0

3 years ago

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