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I need help with simply the number please

marta [7]

7 + $\frac{2(5-2)2}{4}$

7 + $\frac{2(5-2)}{2}$

7+5-2

12-2 = 10

7 0

3 years ago

What is the solution set for the open sentence with the given replacement set? 4y + 2 = 18, {4, 5, 6, 7}

4vir4ik [10]

+2 crosses the equal sign to become 4y=18-2,as 18-2=16 so you get 4y=16 and finally divide both sides by 4,as 4 goes into 16,4 times,therefore,y=4

6 0

3 years ago

Read 2 more answers

How do I start a concat function and use the Index function with the first arguments list as the text1 argument?

romanna [79]

Answer:

ask

Step-by-step explanation:

7 0

2 years ago

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If x^2-x-6 and x^2+3x-18 hacpve a common factor (x-a) then find the value of a.

DedPeter [7]

Answer:

a = 3

Step-by-step explanation:

Factor both expressions

x² - x - 6

Consider the factors of the constant term (- 6) which sum to give the coefficient of the x- term (- 1)

The factors are - 3 and + 2 , since

- 3 × 2 = - 6 and - 3 + 2 = - 1 , thus

x² - x - 6 = (x - 3)(x + 2)

-----------------------------------

x² + 3x - 18

consider factors of constant term (- 18) which sum to give the coefficient of the x- term (+ 3)

The factors are + 6 and - 3 , since

6 × - 3 = - 18 and 6 - 3 = + 3 , thus

x² + 3x - 18 = (x + 6)(x - 3)

Both expressions have a common factor of (x - 3)

Compare with (x - a ), then a = 3

3 0

2 years ago

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Methods of statistics show that if a vegetarian diet had no effect on blood pressure, there would be less than 1 chance in 100 o

Andreas93 [3]

Answer: hi your question is incomplete below is the complete question

answer:

The result has a statistical significance because from the results obtained from the sample of people whom followed vegetarian diet and the people whom followed non-vegetarian diet we can see the different effects on blood pressure.

The result has a practical significance because the large difference in mean values.

Step-by-step explanation:

Sample size = 85 followed a vegetarian diet

Period = 4 months,

Mean systolic blood pressure= 124 mmHg

Sample size = 75 followed non-vegetarian diet

Period = 4 months

Mean systolic Bp = 138 mmHg

Reasons/explanations

Given that p -value < 0.01 we will reject the null hypothesis

The result has a statistical significance because from the results obtained from the sample of people whom followed vegetarian diet and the people whom followed non-vegetarian diet we can see the different effects on blood pressure.

The result has a practical significance because the large difference in mean values.

7 0

2 years ago