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3 years ago

Which describes the intersection of planes A and B? line CD line ED point C point D

Mathematics

2 answers:

Tomtit [17]3 years ago

8 0

The second choice is the correct one

Lisa [10]3 years ago

8 0

Answer:

line ED

Step-by-step explanation:

Let analyse all possible answer:

a. line CD

From the photo, you can see it lies on the plane A and only point D is either on plane A or B.

b. line ED

From the photo, you can see the point E and D are lying on plane A and B.

c. point C

Only in plane A

d. point D

point D is on plane A or B.

However, to describes the intersection of 2 planes, we usually use the a line or a segment to have a better explanation because it goes through all the common points of the two planes

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Ne4ueva [31]

Check the coordinates of the given points in each of the given possible answer functions (2, –21) and (5, –45), until you find the function satisfied by these two points.

Do these points satisfy the equation y = –8x – 5? Substitute 2 for x and -21 for y and determine whether or not the resulting equation is true:

-21 = -(2) - 5 This is false, and we can state that confidentally even

without checking whether the other given point is a solution.

Moving on to the next equation y = –8x + 5:

Is -21 = -8(2) + 5? Is -21 = -16 + 5? Is -21 = -11? No. Move on to the next equation: y = 8x – 5. Is -21 = 8(2) -5 true? No. Move on to the next equation:

y = 8x+ 5 Is -21 = 8(2) + 5? No.

It appears that the given points (2,-21) and (-5,-45) are not solutions of any of the four given equations.

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3 years ago

Gotta need answers fast like asap, it’s geometry, just fill the blanks pls

pentagon [3]

Two or more triangles are said to be congruent if and only if they have equal lengths of sides and equal measures of angles.

Thus, the required proof is as shown below:

STATEMENTS REASONS

1. ΔABC and ΔDEC with AB ≅ DE;

BC ≅ EC; <1 ≅ <2 Given

2. <1 and < ABC; < 2 and <DEC are sup Sum of angles on a straight line

3. <ABC ≅ <DEC Congruent angles of similar triangles

4. ∴ΔABC ≅ ΔDEC Side-Angle-Side (SAS) postulate

5. ∴<ACB ≅ <DCE CPCTC postulate

For more clarifications on the properties of congruent triangles, visit: brainly.com/question/1675117

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