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Paladinen [302]
3 years ago
7

Evaluate the algebraic expression by using the distributive property: 7(7x+y)

Mathematics
2 answers:
mart [117]3 years ago
6 0

Answer:

yo mama

Step-by-step explanation:

11111nata11111 [884]3 years ago
3 0

Answer:

Step-by-step explanation:

14x + 7y is the correct answer

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The percentage profit earned by selling a watch for Nu 1920 is equal to the percent loss incurred by selling the same watch for
dimaraw [331]

Answer:

2,000

Step-by-step explanation:

The computation of the price that should be sold for making 25% profit is shown below:

Let cost price be x

Now the equation would be

(1,920 - x) ÷ x × 100 = (x - 1,280) ÷ x × 100

1,920 - x = x - 1,280

2x = 3,200

x = 1,600

Now the sale price would be

= 1,600 × 1.25

= 2,000

6 0
2 years ago
What is the value of X
ExtremeBDS [4]
\dfrac{6}{9}=\dfrac{x+3}{3+9}\\
\dfrac{2}{3}=\dfrac{x+3}{12}\\
3(x+3)=24\\
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8 0
3 years ago
Plz help me with this!!!
const2013 [10]
The perimeter of parallelogram WXYZ is 22
7 0
3 years ago
1) Which is the slope in the following linear equation?
erik [133]

Answer:

C. 7

General Formulas and Concepts:

<u>Algebra I</u>

Slope-Intercept Form: y = mx + b

  • m - slope
  • b - y-intercept

Step-by-step explanation:

<u>Step 1: Define</u>

y = 7x + 3

<u>Step 2: Break Function</u>

<em>Identify Parts</em>

Slope <em>m</em> = 7

y-intercept <em>b</em> = 3

8 0
3 years ago
4.48 Same observation, difference sample size: Suppose you conduct a hypothesis test based on a sample where the sample size is
Lemur [1.5K]

Answer:

P-value is lesser in the case when n = 500.

Step-by-step explanation:

The formula for z-test statistic can be written as

z=\frac{x-\mu}{\frac{\sigma}{\sqrt{n} } } =\frac{(x-\mu)\sqrt{n}}{\sigma}

here, μ = mean

σ= standard deviation, n= sample size, x= variable.

From the relation we can clearly observe that n is directly proportional to test statistic. Thus, as the value of n increases the corresponding test statistic value also increases.

We can also observe that as the test statistic's numerical value increases it is more likely to go into rejection region or in other words its P-value decreases.

Now, for  first case when our n is 50 we will have a relatively low chance of accurately representing the population compared to the case when n= 500. Therefore,  the P-value will be lesser in the case when n = 500.

6 0
2 years ago
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