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Lena [83]
3 years ago
7

What is the measure of Angle D E F? Triangle D E F. Angle D is 28 degrees. Side D F extends to form an exterior angle at F with

a measure of 135 degrees. 45 degrees 73 degrees 107 degrees 117 degrees
Mathematics
2 answers:
Alex17521 [72]3 years ago
7 0

Answer:

c

Step-by-step explanation:

garri49 [273]3 years ago
4 0

Answer:

C. 107 degrees

Step-by-step explanation:

First you take 135 then subtract it by 180 to find the missing angle. (a straight line is 180 degrees) then you get 45 and add it to 28. (If you add all the angles up in a triangle you get 180) then you subtract the 45+28 or 73 then subtract 180 by 73 and get 107 or C.

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Which is greater 2/8 or 5/8
Radda [10]
2/8 is greater because 5/8 is lesss
7 0
3 years ago
Read 2 more answers
Choose the correct rule to describe the transition of ▵ to ▵’’’
wariber [46]

Answer:

The rule that describes the translation of ΔABC to ΔA'B'C' is

(x, y) → (x + 4, y + 3) ⇒ b

Step-by-step explanation:

Let us revise the rule of translation of a point

  • The image of the point (x, y) after translation h units to the right and k units up is (x + h, y + k)
  • The image of the point (x, y) after translation h units to the right and k units down is (x + h, y - k)
  • The image of the point (x, y) after translation h units to the left and k units up is (x - h, y + k)
  • The image of the point (x, y) after translation h units to the left and k units down is (x - h, y - k)

Let us solve the question

∵ Point A = (-3, 0)

∵ Point A' = (1, 3)

→ Subtract the x-coordinate of A from the x-coordinate of A' to find h

∵ h = 1 - - 3 = 1 + 3 = 4

→ h is a positive value, then the translation is to the right

∴ Point A translated 4 units to the right

→ Subtract the y-coordinate of A from the y-coordinate of A' to find k

∵ k = 3 - 0 = 3

→ K is a positive value, then the translation is up

∴ Point A translated 3 units up

∴ The rule of translation is (x, y) → (x + 4, y + 3)

Let us find B' and C' using the rule of translation

∵ B = (-3, -2)

∵ The rule of translation is (x, y) → (x + 4, y + 3)

∴ B' = (-3 + 4, -2 + 3)

∴ B' = (1, 1) ⇒ same as the figure

∵ C = (-1, -2)

∵ The rule of translation is (x, y) → (x + 4, y + 3)

∴ B' = (-1 + 4, -2 + 3)

∴ B' = (3, 1) ⇒ same as the figure

The rule that describes the translation of ΔABC to ΔA'B'C' is

(x, y) → (x + 4, y + 3)

3 0
3 years ago
help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1
True [87]
Number 3 is C number 4 is c
8 0
3 years ago
What equation in slope intercept form represents the line that passes through the two points?
Alex787 [66]

Answer:

y = -9x +52

Step-by-step explanation:

Given

(x_1.y_1) = (5,7)\\

(x_2,y_2) = (6,-2)

Required

Determine the equation in slope intercept form

First, we calculate the slope of the line:

m = \frac{y_1 - y_2}{x_1 - x_2}

This gives:

m = \frac{7 - (-2)}{5 - 6}

m = \frac{7 +2}{-1}

m = \frac{9}{-1}

m = -9

Th equation is then calculated using:

y - y_1 = m(x - x_1)

This gives:

y - 7 = -9(x - 5)

Open bracket

y - 7 = -9x +45

Make y the subject

y = -9x +45+7

y = -9x +52

7 0
3 years ago
Select the equation that contains the point (-5, 2 ) and in which the slope equals 1/2.
Gnoma [55]
C. y-2=1/2(x+5)

if you bring over the -2 you will get y=1/2(x+5)+2 ... the number outside the parentheses stays they way it is and it’s the y. However, the number inside the parentheses becomes the opposite of what it is and is the x.
6 0
4 years ago
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