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Katen [24]
3 years ago
13

Write the equation of the line that goes through points (9, 1) and (-1, 6) in slope-intercept form.

Mathematics
1 answer:
stepladder [879]3 years ago
7 0

Answer:

y= -1/2x + 11/2

Step-by-step explanation:

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Given that 99°, 153°, 162° are 3 of the interior angles of a n-sided polygon and that the remaining interior angles are 141° eac
Helen [10]

Answer:

n = 9

Step-by-step explanation:

The sum of the interior angles of a polygon is

sum = 180° (n - 2) ← n is the number of sides

Given 3 angles and the remaining angle of 141° then there are

141(n - 3) angles of this size

Then

99 + 153 + 162 + 141(n - 3) = 180(n - 2) , that is

414 + 141n - 423 = 180n - 360

141n - 9 = 180n - 360 ( subtract 141n from both sides )

- 9 = 39n - 360 ( add 360 to both sides )

351 = 39n ( divide both sides by 39 )

9 = n

The polygon has 9 sides

8 0
3 years ago
Construct ΔXYZ in which XY = 4.5 cm, YZ = 5 cm and ZX = 6 cm. (Plus could you tell me which sides i can use for starting the dia
SSSSS [86.1K]

Answer:

  see attached

Step-by-step explanation:

I find it usually works well to draw the longest side first. Then draw arcs with radii equal to the other two side lengths. They will cross at an angle that makes the position of the third point easy to find.

4 0
2 years ago
CJ = 3x + 6,<br> CT = 37, and<br> JT = 3x + 7<br> Find JT.
GrogVix [38]

Answer:

JT=19

Step-by-step explanation:

3x+6+3x+7=37

6x+6+7=37

6x+13=37

    -13  -13

6x=24

6x/6=24/6

x=4

3x+7

3(4)+7

12+7

JT=19

3 0
3 years ago
Solve each equation by factoring,<br>x² - 2x - 15 = 0​
valina [46]

Answer:

x=−3 or x=5

Step-by-step explanation:

x2−2x−15=0

Step 1: Factor left side of equation.

(x+3)(x−5)=0

Step 2: Set factors equal to 0.

x+3=0 or x−5=0

x=−3 or x=5

7 0
3 years ago
The function f(t) = −5t 2 + 20t + 60 models the approximate height of an object
Natalija [7]
F(t) = -5t^2 + 20t + 60
-5(t^2 - 4t - 12)
-5(t + 2) (t - 6)
t = -2 or t = 6

6 seconds
5 0
3 years ago
Read 2 more answers
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