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katrin2010 [14]
3 years ago
12

Given AB= DE <A=<D and AC= DF​

Mathematics
1 answer:
Vladimir79 [104]3 years ago
3 0

Answer:

Step-by-step explanation:

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What is the slope of a line perpendicular to the line whose equation is x-3y=-18
ICE Princess25 [194]

Answer: y = 3x + 2

Step-by-step explanation: Convert the equation to slope intercept form to get y = –1/3x + 2.  The old slope is –1/3 and the new slope is 3.  Perpendicular slopes must be opposite reciprocals of each other:  m1 * m2 = –1

With the new slope, use the slope intercept form and the point to calculate the intercept: y = mx + b or 5 = 3(1) + b, so b = 2

So y = 3x + 2

8 0
3 years ago
For which of the following is x = -5 a solution? Select all that apply.
ser-zykov [4K]

Answer:

b. -x^2 + 50 = 25

c. |2x| = 10

d. x < 0

e. 2x < 10

Step-by-step explanation:

x = -5

-(-5)² + 50

-25 + 50 = 25

|2(-5)| = |-10| = 10

-5 < 0

2(-5) = -10 < 10

8 0
3 years ago
A rectangular price tag has a perimeter of 28 centimeters. Its area is 40 square centimeters.
kirill [66]

Answer:

10 x 4

Step-by-step explanation:

what factors are there for 40?

1, 2, 5, 8, 10, 20, 40

A rectangle has 2 equal long sides and 2 equal short sides. The area is the short times the long.

10 plus 10 and 4 plus 4 equals 28. 4 x 10 equals 40.

5 0
3 years ago
What is the equation in slope intercept form of the line that passes through the points (3,-5) and (0
s2008m [1.1K]

See attachment for math work and answer.

4 0
4 years ago
Read 2 more answers
I need help with this
Aleksandr [31]

Answer:

3. m∠1 = 106° ~ this is because ∠1 and ∠2 together make a straight line and are therefore supplementary, meaning added together, they equal 180° (so I did 180° - 74° = 106°)

4. m∠3 = 74° ~ again, it is supplementary to ∠1. It is also equal to ∠2

5. m∠8 = 114° ~ angles opposite of each other (like 1 and 4) are equal (as we know from question 4). From there, we can use the corresponding angle theorem, so we know 4 and 8 are congruent. (also you can just know 1 and 8 are congruent by using the opposite exterior angles theorem)

6. m∠6 = 124° ~ using same-side interior angle theorem, they are supplementary angles (or the corresponding angles theorem mentioned above, make 4 congruent to 8, and 8 is supplementary to 6)

7. m∠7 = 96° ~ using same side exterior angle theorem, these angles are supplementary

8. m∠2 = 64° ~ again, same side exterior angle theorem

4 0
2 years ago
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