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Rashid [163]
3 years ago
5

Please help on 19 and 20

Mathematics
2 answers:
Svetradugi [14.3K]3 years ago
6 0

Answer:

c and d

Step-by-step explanation:

IRINA_888 [86]3 years ago
6 0

Answer:

C AND D

Step-by-step explanation:

HOPE I HELPED

PLS MARK BRAINLIEST  

DESPERATELY TRYING TO LEVEL UP

✌ -ZYLYNN JADE ARDENNE

JUST A RANDOM GIRL WANTING TO HELP PEOPLE!

                     PEACE!

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5,5,3 Is this a triangle? Explain.
Vlad1618 [11]

Problem 1

Answer: <u>Yes</u> a triangle can be formed with side lengths 5,5,3

--------------------

Explanation:

Take any two sides and add them up. If we get a sum larger than the third side, then a triangle is possible. This is the triangle inequality theorem.

5+5 = 10 is larger than 3

5+3 = 8 is larger than 5

This shows a triangle is possible. The triangle is isosceles because two sides are the same length.

==========================================================

Problem 2

Answer: <u>Yes</u> a triangle can be formed with side lengths 8,8,8

--------------------

Explanation:

This triangle is equilateral because all sides are the same length.

Take any two sides, add them up, and you'll find the sum is larger than the third side.

==========================================================

Problem 3

Answer: <u>No</u> a triangle cannot be formed with sides 7,8,15

--------------------

Explanation:

Yes it is true that

8+15 = 23 is larger than 7

7+15 = 22 is larger than 8

but

7+8 = 15 is not larger than 15

So this means a triangle is not possible.

Imagine you had 3 strips of paper that were 7 inches, 8 inches and 15 inches long. The 7 and 8 inch strips add to 15 inches, but those two smaller strips only form a straight line. We cannot pull them so a triangle forms. If we did, then the third side would be smaller than 15 inches. This is one way to get hands on to see why the triangle inequality theorem works.

==========================================================

Problem 4

Answer: <u>Yes</u> a triangle is possible with side lengths 5,6,10

--------------------

Explanation:

Same idea as before. We can take any two sides, add them, and get a sum larger than the third side. A triangle is possible.

  • 5+6 = 11 is larger than 10
  • 6+10 = 16 is larger than 5
  • 5+10 = 15 is larger than 6
4 0
2 years ago
A coach is ordering shirts for a team.
svlad2 [7]
7.50s + 19.99=C
......
6 0
2 years ago
I need help in this one ASAP please
Ber [7]

Step-by-step explanation:

A= 90 degree

B= 180

C=118

Student committed a minor act of plagiarism or cheating a second time in his/her work or exam for a class OR

committed a serious act of plagiarism or cheating. Serious acts include: copying or purchasing an essay or other

assignment and presenting it as your own, obtaining and using unauthorized materials (paper, electronic) or help

(verbal) during an exam, or obtaining extensive help from classmates or non-classmates for an exam. These can

result in a failing grade for the related assignment or exam

4 0
2 years ago
Alicia works 40 hours per week as a dental assistant. What is her monthly income? What is her yearly income?
Slav-nsk [51]

Answer:

How could i answer without her pay rate ?

Step-by-step explanation:

6 0
3 years ago
Elliot spent $16.15 on ground beef at a grocery store. He purchased 3 and 2 over 5 pounds of ground beef. What is the price per
Andrej [43]

We want to know how much is the price per pound (or unit rate) of ground beef, given that we know the price for Elliot's purchase. We will see that each pound costs $4.75

So we know that (3 + 2/5) lb of ground beef costs $16.15, the cost of a single pound will be given by the quotient between the total cost and the amount purchased, then we need to solve:

P =\frac{ \$ 16.15}{(3 + 2/5)lb}

We can rewrite the denominator as:

(3 + 2/5)lb = (15/5 + 2/5)lb = (17/5) lb

Replacing that we get:

P =\frac{ \$ 16.15}{(17/5)lb} = \frac{ \$ 16.15*5}{17lb} = \$4.75   \ per  \ lb

So each pound of ground beef costs $4.75

If you want to learn more about unit rates, you can read:

brainly.com/question/2375289

4 0
2 years ago
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