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3 years ago

Need help with this one

Mathematics

1 answer:

tiny-mole [99]3 years ago

6 0

Answer: The perimeter of triangle ABC is p = 21.8 units

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Help please! Do not answer if you are not going to help me

kirza4 [7]

9514 1404 393

Answer:

12. (x, D, E, F) = (8, 38°, 75°, 67°)

13. (x, P, Q, R) = (13, 126°, 30°, 24°)

Step-by-step explanation:

The sum of angles in a triangle is 180°. We choose to write the equations assuming all measures are degrees.

12. (5x -2) +(9x +3) +(11x -21) = 180

25x = 200 . . . . . . . add 20, simplify

x = 8 . . . . . . . . . divide by 25

Then the angle measures are ...

∠D = 5(8) -2 = 38°

∠E = 9(8) +3 = 75°

∠F = 11(8) -21 = 67°

13. (10x -4) +(4x -22) +(x +11) = 180

15x = 195 . . . . . . . . . . add 15, simplify

x = 13 . . . . . . . . . divide by 15

Then the angle measures are ...

∠P = 10(13) -4 = 126°

∠Q = 4(13) -22 = 30°

∠R = 13 +11 = 24°

4 0

3 years ago

The Hundred Years War led to the end of the Middle Ages in the beginning of the

Gre4nikov [31]

It led to the beginning of the Renaissance.

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3 years ago

Factor the polynomial x2 + x - 6. Which one of the following is a factor? (x - 1) (x + 2) (x + 3) (x + 5)

Stells [14]

The factors are (x+3) & (x-2)
Your answer is (x+3)
Hope this helps

8 0

3 years ago

Find the area in square meters 5m 4m 2m

vaieri [72.5K]

Answer:

40 5x4 20 20x2 40

Step-by-step explanation:

8 0

3 years ago

Which equation represents a line that passes through (4, left-parenthesis 4, StartFraction one-third EndFraction right-parenthes

Alina [70]

Answer:

$y-\frac{1}{3}=\frac{3}{4}(x-4)$

Step-by-step explanation:

we know that

The equation of the line into point slope form is equal to

$y-y1=m(x-x1)$

In this problem we have

$point\ (4,\frac{1}{3})$

$m=\frac{3}{4}$

substitute the given values

$y-\frac{1}{3}=\frac{3}{4}(x-4)$

y minus StartFraction one-third EndFraction equals StartFraction 3 Over 4 EndFraction left-parenthesis x minus 4 right-parenthesis.(x – 4)

7 0

3 years ago

Read 2 more answers