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3 years ago

The straight line L has equation y = 2x - 5

Mathematics

1 answer:

Aleksandr-060686 [28]3 years ago

7 0

Answer:

slope of perpendicular line - m = -1/2

passing through (-2,3)

thus,

y-3 = -1/2 (x+2)

or y = -1/2x +2

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The ratio of boys to girls on a swimming team is 4 to 3. The team has 35 members how many are girls

diamong [38]

Answer:

See below:

Step-by-step explanation:

Hello! I hope you are having a nice day. My name is Galaxy and I will be helping you today!

We can solve this problem in two steps, one being Comprehension and another being Solving. I'll start off with Comprehension.

Comprehension

We can see that based of the problem, for every batch of 7 kids, there are 4 boys and 3 girls. That means that we can split the total, which is 35, into groups of 7 and seeing how many girls and boys there are.

Now that we know what we need to figure out and what to do, we can begin solving.

Solving

So, for every group of 7 kids there are 4 boys and 3 girls. We can divide 35 by 7 to find how many of these identical groups there are.

$35 \div 7=5$

We know that there are 5 such groups of 4 boys and 3 girls each. Therefore, we can multiply 4 and 3 by 5 as there are 5 such groups to find our total.

$4*5=20\\$

We know there are 20 boys.

$3*5=15$

We know there are 15 girls.

We can check this by seeing if this adds up,

$15+20=35?\\35=35$

Therefore, our answer is there are 15 girls and 20 boys.

5 0

3 years ago

Read 2 more answers

Does this really works

Jet001 [13]

Really works what..................................

7 0

3 years ago

Select all triangles whose side lengths prove they are right triangles. You must select all that apply.

Bogdan [553]

It is D.

Reason. 3^2 is 9, 4^2 is 16.
16+9= 25
The square root of 25 is 5.
Therefore it is D.

6 0

2 years ago

Read 2 more answers

What is the length of ab

Marina86 [1]

Answer:

a,2

Step-by-step explanation:

3×=4×-2

if ×=2

3(2)=4(2)-2

6=8-2

6=6

this is the answer I hope it will help you

8 0

3 years ago

You are interested in the relationship between leisure activities and mood. One group of participants watches at least 2 hours o

Romashka [77]

Answer:

The most appropriate statistical test to use to compare the mood scores from the different groups is independent sample t-test.

Step-by-step explanation:

The Independent Samples t-test examines the means of two independent groups to see if statistical evidence exists to show that the related population means differ significantly.

The Independent Samples t-test is also known as Independent t-test, Independent Two-sample t-test, and among others.

It should be note that only two (and only two) groups can be compared using the Independent Samples t-test. It is not possible to use it to make comparisons between more than two groups.

Therefore, the most appropriate statistical test to use to compare the mood scores from the different groups is independent sample t-test.

3 0

3 years ago