Answer:
The answer is D
Step-by-step explanation:
GOT IT right ED 2021
Answer:
36m
Step-by-step explanation:
The midpoint theorem : the line segment drawn from the midpoint of any two sides of the triangle is parallel to and half of the length of the third side of the triangle.
PT = 2 QS = 16
perimeter of ΔPRT = 3*2 + 7*2 + 8*2 = 36 m
Answer:
B.70
Step-by-step explanation:
For one or two angles are complementary angle(s), they have to equal 90°.
So, we need to find the larger angle, but what about the other?
Let x be the other angle and y be the angle we are looking for
x + y = 90
Lets look for x first, since one angle is ten less than four times the angle we are looking for or visa versa, we must:
y = 4x - 10
For an exchange, lets take out the y variable for another x variable:
So now we should have x + 4x - 10 = 90
Combine like terms and do cross equation :
x + 4x -10 = 90
5x - 10 = 90
Add 10 to both sides:
5x = 100
100/5 = 20
So <u><em>x=20</em></u>
<u><em></em></u>
Now for y which is what we are looking for,
y = 4x - 10
Since x is 20, plug it in
y = 80 - 10
y=70 is our larger angle
Answer: y=3x+1
Step-by-step explanation:
First find slope using formula
m= y2–y1/x2–x1
m= 4– (—2)/ 1— (—1)
m= 3
So,
y= mx+b
y=3x+b. Using (1,4) plug into equation of a line
4= 3(1)+b
4 – 3= b
1= b. So,
y=3x+1
Answer:
Step-by-step explanation:
We need to find the sum of 
and 
first.
Adding +
Combining like terms, we get
-2ab+2ab = 0
Therefore,
.
Now, we need to find the sum of 
.
Adding 
.
Combining like terms, we get
.
Therefore,
Now, subtracting
.
Distributing minus sign over second parenthesis, we get
.
Combining like terms,
Therefore,
.
Therefore, the difference of the sum of + and 
is 
