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leva [86]
3 years ago
11

alberto knows that all the lines and rays are congruent to each other . he reasons that all segments must therefore be congruent

to each other. alberto conclude that AB CD What is his error

Mathematics
1 answer:
saw5 [17]3 years ago
7 0

Answer:

Step-by-step explanation:

Alberto is correct in reasoning that all lines and rays are congruent to each other but incorrect in his reasoning about the line segments.

Line segments are equal in measure only when they are equal in length. They can have any orientation on a plane.

Since, AB = 3 units

CD = 4 units

Therefore, AB ≠ CD

Error in AB ≅ CD

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MAXImum [283]
1) is C because the line is increasing not decreasing and it goes up 7 & right 2.
2) the y-intercept is -2 and the slope is up 3 over 1, so the answer has to be B
3) the answer is A because the up 2 over 3
4) the y-intercept is a positive 4, and the slope is going down 3 and to the right 5, and the line is decreasing so you know it has to be negative. the answer is D
7 0
3 years ago
Find the value of x. Give reasons to justify your solution. C ∈ AE
saw5 [17]

Answer:

x = 11º

Step-by-step explanation:

1. Notice Parallel Lines

2. Understand Angle Relationships When Parallel Lines Are Present (e.g., alternate interior/exterior)

3. ∠CAB ≅ ∠DCA ∴ m∠CAB = 33º

4. Use exterior angle theorem: the sum of non-adjacent angles of the same triangle which the exterior angle is drawn is equal to the measure of that angle.

5. Therefore write and solve the equation 2x + 33º (sum of non-adjacent interior angles) = 5x (exterior angle).

  • 2x + 33 = 5x (C.L.T or <u>C</u>ombine <u>L</u>ike <u>T</u>erms)
  • 3x = 33 (inverse operations; divide by 3)
  • x = 11º (remember to apply units)
7 0
3 years ago
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GalinKa [24]
A. 515
b. 43
c. 3510
d. 1.9705
4 0
3 years ago
29) Find the area of a right triangle with a base of 22 cm and height of 10 cm.
Arte-miy333 [17]

Answer:

110 cm²

Step-by-step explanation:

The area of a triangle is 1/2 times base times height.

A = 1/2bh

A = 1/2(22)(10)

A = 110

7 0
3 years ago
If a = -9 and b = 4, what is the value of a + b ?<br> A. -5<br> B. 5 <br> C. -13 <br> D. 13
madreJ [45]

Answer:

A. -5

Step-by-step explanation:

-9 + 4 = -5

hope this helps

7 0
3 years ago
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