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zvonat [6]
3 years ago
9

Help will give brainliest

Mathematics
1 answer:
tangare [24]3 years ago
6 0
Angles on a straight line add up to 180 degrees.
180-100 = 80
x + 3x = 4x
80/4 = 20
x = 20 degrees
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The diagonals of a quadrilateral QRST intersect at P(2,3). QRST has vertices at Q(3,6) and R(-3,5). What must be the coordinates
Sergio [31]

Answer:

S (1 , 0)

T (7 , 1)

Step-by-step explanation:

If QRST is a parallelogram, P is the mid point of segment QS and segment RT.

Basic formula for mid-point of segment: ((x1+x2)/2 , (y1+y2)/2)

T (x₁ , y₁)    S (x₂ , y₂)   P (2 , 3)    Q (3 , 6)   R (-3 , 5)

2 = (x₁ + (-3))/2         x₁ = 7

3 = (y₁ + 5)/2            y₁ = 1

T (7 , 1)

2 = (x₂ + 3))/2         x₂ = 1

3 = (y₂ + 6)/2           y₂ = 0

S (1 , 0)

4 0
3 years ago
#4
Solnce55 [7]
............15n+12b
5 0
4 years ago
#1: Consider the list of golf scores: 71, 68, 72, 79, 80, 77, 84, 70, 92. What is
Nesterboy [21]

Answer:none

Step-by-step explanation:

8 0
3 years ago
What is 6,0000×5,0000<br>A.3,925,649,025<br>B.3,000<br>C.200<br>D.345
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A.3,925,649,025........
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3 years ago
Read 2 more answers
What is 14c12?<br> A. 78<br> B. 91<br> C. 105<br> D. 120
Delicious77 [7]

9514 1404 393

Answer:

  B.  91

Step-by-step explanation:

14C12 = 14!/(12!(14-12)!) = 14·13/(2·1) = 7·13 = 91

5 0
3 years ago
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