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emmainna [20.7K]
3 years ago
7

Find the area of ΔABC. vertices are A(2, 1), B(3, 3), and C(1, 6)

Mathematics
1 answer:
Karolina [17]3 years ago
7 0

Answer:

area = (1/2)|Ax(By-Cy) +Bx(Cy-Ay) +Cx(Ay-By)|

 = (1/2)|2(3-6) +3(6-1) +1(1-3)| = (1/2)|-6 +15 -2|

 area = 7/2

learn at brainly.com/question/17119045

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A plumbers bill is £463.20 plus VAT. The current rate of VAT is 20% what is the actual cost of work done
Jet001 [13]
Actual cost = bill + VAT*bill
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4 0
3 years ago
Help i don’t know if my answers are correct and I need the other ones I didn’t answer to be answered to please help I need the c
qwelly [4]
Answer:
1) correct
2) correct
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4) Not Congruent
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Explanation:
7 is incorrect because the angle isn’t included in the sides

Hope this helps!
7 0
3 years ago
3+2•[(2+1)•5+8]<br> Simplify the expression
Oksi-84 [34.3K]
*115*

do the parentheses in the parentheses first, then the outer parentheses, then the stuff outside the parentheses.


PEMDAS

parentheses...exponents...multiplication/division...Addition/subtraction.
3 0
3 years ago
Which of the following is a correct interpretation of the expression -7- (-11)?
Brilliant_brown [7]

Answer:

B. Start at -7 on the number line and move 11 to the right.

Step-by-step explanation:

<u>Given:</u>

  • - 7 - (-11) expression

We can add or remove only positive numbers on the number line to get it  correct, so we need to open the parenthesis. When evaluated we get:

-7- (-11) = - 7 + 11 = 4

<u>Correct interpretation of of this expression is:</u>

  • Start at -7 and add 11, thus move 11 points to the right, to get 4 as final point.

<u>Correct choice is:</u>

  • B. Start at -7 on the number line and move 11 to the right.

6 0
3 years ago
I need help don’t understand
nadya68 [22]
If f(x)=x+1 and then x became 2, you would have the function f(x)=3. So basically for that function you would be going up three over 1. That function is already g(x)=4x. If X became 2, you would have g(x)=8x. The rate of up 8 and then over one. Because of that, g(x) would be higher
8 0
3 years ago
Read 2 more answers
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