All categories

2 years ago

Need help on the yellow question

Mathematics

2 answers:

hodyreva [135]2 years ago

8 0

8/21 is the answer to the question

Viktor [21]2 years ago

8 0

Answer:

8/21

Step-by-step explanation:

Use the method called KCF, or Keep, Change and Flip for this question.

For this question, keep the first fraction of the equation the same, but flip the 2nd fraction of the denominator and the numerator. For example, you need to change it from 3/4 to 4/3.

So it's 2/7 x 4/3 = 8/21

You might be interested in

Find the distance between A(-2,3) and B(11,-15)

WITCHER [35]

U need to draw the orthonormal system to indicate

6 0

3 years ago

Tristan walked for 13 1/4 hours in May and June altogether. In May, he walked 6 4/6 hours. How many hours did he walk in June?

Triss [41]

The equation that you should use to solve this is (13 + 1/4) - (6 + 2/3) = 6 and 7/12

5 0

2 years ago

Whats TWO equivalent expressions for 2(3j+ 5 + 6j). Rember TWO equivalent expressions not one.

Natalka [10]

Answer:

2(9j+5) and 18j+10

Step-by-step explanation:

1) group like terms

2) distribute

please mark brainliest

6 0

2 years ago

At Pizza Pi, 40% of the pizzas made last week had extra cheese. If 8 pizzas had extra cheese, how many pizzas in all were made l

Natalija [7]

Answer:

20 pizzas.

Step-by-step explanation:

40% = 8

1% = 8 ÷ 40 = 0.2

100% = 0.2 x 100 = 20

3 0

2 years ago

A statistics practitioner in a large university is investigating the factors that affect salary of professors. He wondered if ev

uysha [10]

Complete Question

The complete question is shown on the first uploaded image

Answer:

The null hypothesis is $H_o : \beta_1 = 0$

The alternative hypothesis is $H_1 : \beta_1 \ne 1$

Step-by-step explanation:

From the question we are told that

The number observations is $n = 100$

The annual salary (in dollars) is y

The mean score on teaching evaluation is x

The the relationship between the y and x is

$y = \beta_0 + \beta _1 x + \epsilon$

Where $\beta _1$ is the mean of the equation so

The null hypothesis is $H_o : \beta_1 = 0$

The alternative hypothesis is $H_1 : \beta_1 \ne 1$

6 0

2 years ago