All categories

4 years ago

[Grade 7 maths] I really hope I’m correct saying y squared + y is equal to y(2y)

Mathematics

1 answer:

Ksenya-84 [330]4 years ago

5 0

Answer: No, it is equal to y² + y

Step-by-step explanation:

No, you are incorrect.

Lets break it down.

Y squared means y to the power of two, which looks like this:

y²

Then, you have to add a y, so the end result should look like this:

y² + y

You might be interested in

I need help finding the answer. Would appreciate some help

FromTheMoon [43]

I hope this helps so the first one should be right

7 0

3 years ago

Read 2 more answers

How do I find the range?

lara [203]

By doing something like 56 lowest and 89 highest then do 89-56 the range us 33

3 0

3 years ago

Read 2 more answers

Can someone pls finish this for me, ill give brainliest

dolphi86 [110]

Answer:

dependent variable: circles drawn

independent: time

the independent variable is what you control, which was the time spent. the amount of circles you were able to draw <em>depended</em> on the amount of time you had, so it was the dependent variable.

part 2:

if you drew circles at the same rate

0-0

1-29

2-58

3-87

4-116

hope that helped! lemme know if you need more

8 0

3 years ago

According to a survey, about 19% of all Americans are without health insurance. Assume that this estimate is reasonably accurate

uranmaximum [27]

Answer:

a) 8.74

b) 2.6607

Step-by-step explanation:

For each American, there are only two possible outcomes. Either they are without health insurance, or they are not. In the sample, each person is independent of any other person, which means that we use the binomial probability distribution to solve this question.

Binomial probability distribution

Probability of exactly x sucesses on n repeated trials, with p probability.

Can be approximated to a normal distribution, using the expected value and the standard deviation.

The expected value of the binomial distribution is:

$E(X) = np$