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Evgesh-ka [11]
3 years ago
6

Which of the following is not an acceptable form of proof?

Mathematics
2 answers:
Arisa [49]3 years ago
5 0
I think its  <span>B. Two-column proof 
</span>
Molodets [167]3 years ago
3 0

Answer:

D: proof by contradiction

Step-by-step explanation:

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T. J. And Lindsey's lunch cost $30. They want to leave a 20% tip for their waiter. Use What is the amount of the tip that T.J. A
ahrayia [7]

Answer:

$6

Step-by-step explanation:

In order to find the amount of the tip that T.J. and Lindsey will leave for their waiter, you have to multiply the lunch cost for the percentage they want to leave as a tip for their waiter:

Lunch cost=$30

Percentage they want to leave as a tip= 20%

$30*20%=$6

According to this, the answer is that the amount of the tip is $6.

7 0
3 years ago
A professor using an open source introductory statistics book predicts that 10% of the students will purchase a hard copy of the
Likurg_2 [28]

Answer: The professor was not accurate with his hypothesis.

Null hypothesis: P1 = 12.5%, P2 = 42.5%, P3 = 45%

The alternate hypothesis: At least one proportion of the student will differ from the others.

Step-by-step explanation: To check if the professors hypothesis were inaccurate.

What percentage of student bought a hard copy of the book.

(25 ÷ 200) × 100 = 12.5%

What percentage of the student printed it from the web.

(85 ÷ 200) × 100 = 42.5%

What percentage of the students read it online.

(90 ÷ 200) × 100 = 45%

This means that the professor was not accurate with his hypothesis. Because the proportion of student in his hypothesis was not the same in the actual.

Therefore; the null hypothesis are

P1 = 12.5%, P2 = 42.5%, P3 = 45%

The alternative hypothesis will state that at least one of the proportion will be different from the others.

5 0
3 years ago
Point A is located at (0,4) and point B is located at (-2,-3). Find the x value for the point that is 1/4 the distance from poin
fiasKO [112]
To solve these questions, use this formula: X3= F(X1-X2) Y3= F(Y1-Y2) Where X3 is the X value in the coordinate your solving for, F is the fraction, X1 is the first X and X2 is the second X Plug in your numbers to fit this: X3= 1/4 x (0--2) Y3= 1/4 x (4- -3) By solving you get: (-.5, 1.75)
8 0
3 years ago
Helppppppppppppppppppp
DochEvi [55]
Angle 2 and angle 11 are alternate exterior angles. Line G and line L are parallel lines. Think of them as train tracks. On the outside or exterior of the train tracks is angle 2 and angle 11.

Angle 2 is on the right side of the transversal line, while angle 11 is on the left side of the transversal line.

So this is why they are alternate exterior angles. Because line G and line L are parallel lines, this means the alternate exterior angles are congruent (by the alternate exterior angle theorem). 

Since angle 2 is 115 degrees, angle 11 must also be 115 degrees

Answer: C) 115
7 0
3 years ago
Find the value of x when y=16 y=-5x+4
LenaWriter [7]
First, plug Y into the equation
16=-5x+4
Get variables on one side and numbers on the other
Subtract 4 from both sides
12=-5x
X= 12/5
6 0
3 years ago
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