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3 years ago

Felicia drew the pictures at the right to show 3/8 is greater than 3/4. What was Felicia’s mistake?

Mathematics

1 answer:

Alborosie3 years ago

8 0

To show equality with fractions both fractions should be converted to show their values with the same denominator then draw a picture of those fractions.

Remember that you can only compare fractions with the same denominator as is said with other operations dealing with fractions.

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What is the significance of the value 0.31 in the context of the data? A It represents the probability that a student in Mr. Lop

Dvinal [7]

Step-by-step explanation:

The significance level, also denoted as alpha or α, is the probability of rejecting the null hypothesis when it is true. For example, a significance level of 0.05 indicates a 5% risk of concluding that a difference exists when there is no actual difference

6 0

2 years ago

Six Republicans and four Democrats have applied for two open positions on a planning committee. Since all the applicants are qua

Dafna11 [192]

Answer:

$\displaystyle P=\frac{7}{15}=0.467$

Step-by-step explanation:

<u>Probabilities</u>

When we choose from two different sets to form a new set of n elements, we use the so-called hypergeometric distribution. We'll use an easier and more simple approach by the use of logic.

We have 6 republicans and 4 democrats applying for two positions. Let's call R to a republican member and D to a democrat member. There are three possibilities to choose two people from the two sets: DD, DR, RR. Both republicans, both democrats and one of each. We are asked to compute the probability of both being from the same party, i.e. the probability is

$P=P(DD)+P(RR)$

Let's compute P(DD). Both democrats come from the 4 members available and it can be done in $\binom{4}{2}$ different ways.

For P(RR) we proceed in a similar way to get $\binom{6}{2}$ different ways.

The total ways to select both from the same party is

$\displaystyle \binom{4}{2}+\binom{6}{2}=4+15=21$

The selection can be done from the whole set of candidates in $\binom{10}{2}$ different ways, so

$\displaystyle P=\frac{21}{\binom{10}{2}}$

$\displaystyle P=\frac{21}{45}=\frac{7}{15}=0.467$

3 0

3 years ago

A, B & C form the vertices of a triangle, where

Brrunno [24]

Answer:

60.6°

Step-by-step explanation:

Tan ACB = opp/adj

= 10.3/5.8

ACB = 60.61584287 = 60.6

6 0

3 years ago

A recipe for 8 servings of soup calls for 6 cups of vegetable broth. How many cups of broth are needed to make 20 servings of so

denis-greek [22]

Answer:

Step-by-step explanation:

4 0

3 years ago

What does n equal in algebra

Margaret [11]

The variable n can equal anything. You can use any variable to equal something. Variables are usually used in equations to represent some unknown quantity.

For example, a tutor wants to know how much he would get. If the hourly pay is $6, how much will he get for working for 3 hours?

So now, we have to use variables to represent how much the tutor will get.
So let's say, t is for total, h is for hours, and p = pay
It would look like this: t = hp
So you know what those represent, you'll plug in the numbers to find out how much he'll get.
t = 3(6)
t = $18
He'll get 18 dollars in 3 hours.
Hope this helps.

4 0

3 years ago