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Sphinxa [80]
3 years ago
7

Need help with writing proof for this (Questions 12 and 13)

Mathematics
1 answer:
HACTEHA [7]3 years ago
4 0

Answer:

Step-by-step explanation:

12.

Statements:

1. RS bistecs PQ at T; PQ bisects RS at T.

2. RT is congruent to ST; PT is congruent to QT.

3. Angle T is congruent to angle T.

4. Triangle PTS is congruent to triangle QTR.

Reasons:

1. Given.

2. Definition of a bisector of a line segment.

3. Reflexive Property.

4. SAS Postulate

13.

Statements:

1. AB is congruent to AD; AC bisects angle BAD.

2. Angle BAC is congruent to angle DAC.

3. AC is congruent to AC.

4. Triangle ABC is congruent to triangle ADC.

Reasons:

1. Given.

2. Definition of a bisector of an angle.

3. Reflexive Property.

4. SAS Postulate.

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makvit [3.9K]

Answer:

x^2-4x+3

Step-by-step explanation:

Since the zeroes of the quadratic are 1 and 3, we can set up an equation in factored form:

(x-1)(x-3)

=x^2-4x+3

We can further check that this is the right answer by evaluating it at the vertex:

(2)^2-4*2+3=-1

Since that corresponds to the graph, the answer is x^2-4x+3

3 0
3 years ago
How would you write this equation in terms of sin and cos as well as simplify it from there?
ziro4ka [17]
Try this option:
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8 0
3 years ago
What is the value of the expression shown? 4(-2) + (-10) + 3(-8)
Vlad [161]

Answer:

-42

Step-by-step explanation:

1. 4(-2)

2. 3(-8)

3. -8 + -10 + -24

4. cobine like terms

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7 0
2 years ago
Given the figure, find the values of x and z.
matrenka [14]

Answer:

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7 0
3 years ago
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Joe is mowing lawns to buy a new car. For every lawn that he mows he earns $20. Joe charges a one time clean up fee of $50 befor
LUCKY_DIMON [66]
X=5
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