50 points! Can someone help me with the first one? I will mark brainliest.

Mathematics

2 answers:

skelet666 [1.2K]3 years ago

5 0

Answer:

I got 5 points Thanks a lot but pretty sure its perpendicular, i did a quick graph, their Nor parallel but could be perpendicular but not sure if 90 degrees. EDIT: its perpendicular I graphed it on a calc and I got 90 degrees

Airida [17]3 years ago

4 0

Answer:

Step-by-step explanation:

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Rob ran 27.2 miles less than Jasmine last week. Rob ran 10 miles. How many miles did Jasmine run?

jeka94

Answer:

Jasmine ran last week 37.2 miles

Step-by-step explanation:

Let

x ----> number of miles Rob ran last week

y ----> number of miles Jasmine ran last week

we know that

x=y-27.2 ----> equation A

x=10 ----> equation B

Substitute equation B in equation A and solve for y

10=y-27.2

y=10+27.2

y=37.2 miles

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3 years ago

Please help me on this I’m super stuck

erastova [34]

Answer:

BC = 3.1666

Step-by-step explanation:

To solve this you need to know that cosine∅ = adjacent/hypotenuse. We already know that hypotenuse = 5 and that ∅ = 70*. By substituting these in you will get cosine 70* = adjacent/5. Evaluate cosine 70* on the calculator and get 0.633... Multiply both sides by 5 and get adjacent is about equal to 3.1666. Because BC is the adjacent side of the triangle, this is the length of BC.

6 0

3 years ago

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Maksim231197 [3]

It depends on how much its the total

7 0

3 years ago

Read 2 more answers

Please solve with explanation

Juliette [100K]

Step-by-step explanation:

$4\frac{9}{20} - 1\frac{2}{6} =\\\frac{89}{20} - \frac{8}{6} = \frac{89 - 26.7}{20} = \frac{62.3}{20} \\$