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Valentin [98]
2 years ago
11

Find the perimeter of triangle ABC. Approximate to the nearest whole unit.​

Mathematics
2 answers:
kolbaska11 [484]2 years ago
7 0

Answer: 16 units

Step-by-step explanation: adding the perimeter sides to get the perimeter of triangle ABC would be 4.1+6.1+5.8 = 16

AfilCa [17]2 years ago
4 0

Answer:

16

Step-by-step explanation:

AC = 6.1

CB = 5.8

BA = 4.1

Use whole number approximations for the three side lengths.

AC = 6

CB = 6

BA = 4

perimeter = AC + CB + BA = 6 + 6 + 4 = 16

Answer: 16

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I don’t know how to find X or Y very urgent, need to figure this out how to solve plz help
Lena [83]

Answer:

x = 9

y = 9√3 = 15.6

Step-by-step explanation:

The triangle given is a right triangle, therefore:

✔️apply trigonometric ratio formula to find x:

Reference angle = 60°

Hypotenuse = 18

Adjacent = x

Thus:

Cos (60) = x/18

Multiply both sides by 18

18×cos(60) = x

9 = x

x = 9

✔️find y by applying pythagorean theorem:

y² = 18² - x² (pythagorean theorem)

y² = 18² - 9² (substitution)

y² = 243

y = √243

y = √(81*3)

y = 9√3 = 15.6

3 0
3 years ago
-2^2-3(-2)+1 evaluate the polynoimal
Phoenix [80]

We must follow order of operations rules (PEMDAS) here: exponentiation first, followed by multiplication and division, followed by addition and subtraction.

Thus, -2^2-3(-2)+1 becomes:

-[4] + 6 + 1 = 2 + 1 = 3 (answer)

4 0
3 years ago
Read 2 more answers
Tickets for a play cost $3 for children and $10 for adults. A group of 25 people paid a total of $201 for tickets to the play. H
lidiya [134]

Answer: There were 7 children

Step-by-step explanation:

Let's use <em>x </em>to represent the children and <em>y </em>to represent the adults.

We know they combine to make a group of 25 people so x+y=25

We also know that they paid $201 and that there is $3 per child and $10 for adults so 3x+10y=201

I will solve by substitution.

Solve for y in the first equation

x+y=25\\x-x+y=25-x\\y=25-x

Sub in our value for y into the other equation and solve for x

3x+10y=201\\3x+10(25-x)=201

Step 1) Simplify

3x+250-10x=201\\-7x+250=201

Step 2) Subtract 250 from both sides

-7x+250-250=201-250\\-7x=-49

Step 3) Divide both sides by -7

\frac{-7x}{-7} =\frac{-49}{-7}\\x=7

8 0
2 years ago
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Ms. Lynette earns $19.50 an hour when she works overtime. She worked overtime twice this week. One day she worked 3 hours of ove
algol13
(19.50*3)+(19.50*x)=146.25
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3 years ago
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makhia Found 1 4/5 Ibs.of chocolate candy and 3 5/6 Ibs.of Peppermint candy in her stocking. How much more peppermint candy than
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Answer:

2.03333333 pounds

Step-by-step explanation:

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