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ludmilkaskok [199]

3 years ago

6

which of the following is a counterexample of the statement, "the sum of an odd number and an even number is always positive"? -

4+3=1, 1+0=1, -2+5+3, 1+2=3

2 answers:

creativ13 [48]3 years ago

8 0

Answer:

first one -4+3 is -1 not 1

Korvikt [17]3 years ago

8 0

Answer:

The first one

−4+3=−1

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A total of 408 tickets were sold for the school play. They were either adult tickets or student tickets. The number of student t

Lisa [10]

Ok..So.. we will make this notation adult tickets= x and student tickets=y. It says that the number of student tickets was 2 times the number of adult tickets, so.. y=2x. x+y=408 (the total number)=> x+2x=408. 3x=408 => x=408/3 => x=136. (the number of adult tickets)

6 0

4 years ago

A company manufactures a part for which there is a desired weight. There is a tolerance of N%, meaning that the range between mi

aleksandrvk [35]

Answer:

Step-by-step explanation:

(A) Determine what the tolerance is for the desired weight 97

The tolerance N% is equal to 1.5% of 97

1.5/100 × 97 = 1.455

Lower limit = 97 - 1.455 = 95.545

Upper limit = 97 + 1.455 = 98.455

(B) Place the vector values into two groups;

- Variables lower than 97

95.5, -97.2, 96.2, 96.1

- Variables higher than 97

98.2, 100, 99.9, 99.8

(C) Determine if each of the values is within the tolerance bracket or not

1. Value 97 is within the tolerance. As a matter of fact, it is the desired weight.

2. Value 98.2 is within the tolerance

3. Value 95.5 is within the tolerance

4. Value -97.2 is far below the tolerance bracket or lower limit

5. Value 96.2 is within the tolerance

6. Value 100 is outside the tolerance

7. Value 99.9 is outside the tolerance

8. Value 99.8 is outside the tolerance

9. Value 96.1 is within the tolerance

6 0

3 years ago

Determine whether the following possible responses should be classified as interval, nominal or ordinal data.

faltersainse [42]

Answer:

1. Nominal data 2. Responses here can't be classified as interval or nominal or ordinal data 3. Responses here can't be classified as interval or nominal or ordinal data 4. nominal

Step-by-step explanation:

1. Heidi's favorite brand of tenis balls is only a "label" in the set of brands that can be regarded. So, because we are dealing with names or "labels" we should classify responses here as nominal data.

2. Possible values for the number of cars in a parking lot are 0, 1, 2, 3, 4,... Besides we can say that 4 cars is twice than 2 cars, and exist a true zero. We can't say that responses here correspond to interval data, in fact, we can say that responses here correspond to the kind of data called ratio data.

3. You can spend zero hours in your homework, so, there exists an absolute zero, besides, to say that you spend 4 hours in your homework is twice that if you spend 2 hours in your homework is meaningful. We can't classify responses here as interval data or ordinal or nominal. We can classify responses here as ratio data.

4. There are only two different responses here, i.e., You are a US citizen or You are not a US citizen. We are dealing with "labels" again, and in general, we can't say there is a better response or stablish an order.

6 0

3 years ago

Summer earns extra money raking leaves in the fall. She earns $20 per week raking leaves and gets paid on

Anit [1.1K]

Answer:

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Step-by-step explanation:

7 0

3 years ago

Please help me! STU is an equilateral triangle. If ST is one less than twice x, SU is 37 less than five times x, and TU is 11 mo

zhuklara [117]

Answer:

x = 12

ST = 23 units

SU = 23 units

TU = 23 units

Step-by-step explanation:

For an equilateral triangle, all the angles are equal. Also, all the sides are equal.

Hence given that the sides ST is one less than twice x, SU is 37 less than five times x, and TU is 11 more than x

ST = 2x - 1

SU = 5x - 37

TU = x + 11

Since ST = SU = TU

2x - 1 = 5x - 37

collect like terms

37 - 1 = 5x - 2x

36 = 3x

Divide both 3

36/3 = x

x = 12

Therefore

ST = 2x - 1 = 2(12) - 1 = 23 units

SU = 5x - 37 = 5(12) - 37 = 23 units

TU = x + 11 = 12 + 11 = 23 units

8 0

3 years ago