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3 years ago

Test 72,590 for divisibility by 2,5, or 10

Mathematics

1 answer:

nevsk [136]3 years ago

5 0

Answer:

Divisible by 2, 5 AND 10.

Step-by-step explanation:

72590÷2=36295

72590÷5=14518

72590÷10=7259

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What is the difference between integers and real numbers?

galina1969 [7]

Integers are positive and negative whole numbers no fractions or decimals.
Real numbers do have fractions and decimals that integers do not.

5 0

3 years ago

Step 1 of 3: Each year a nationally recognized publication conducts its Survey of America’s Best Graduate and Professional Schoo

lukranit [14]

Answer:

Step-by-step explanation:

Hello!

Given the variables

Y: Starting salary of a graduate at a top business school

X: GMAT score of the business school

The sample used had a size n=20

The estimated regression equation was ^Y= -92040 + 228Xi

The correlation coefficients were r= 0.81

You need to know if r is statistically significant at a 0.05 level:

Assuming the hypotheses are:

H₀: There is a linear correlation between the variables of interest

H₁: There is no linear correlation between the variables of interest

α: 0.05

This test is two-tailed.

The p-value for a r=0.81 and n=20 is 0.000015

Using the p-value approach, the decision rule is:

If p-value ≤ α, reject the null hypothesis

If p-value > α, do not reject the null hypothesis

In this case, the p-value is less than α, the decision is to reject the null hypothesis.

At a 5% level, you can conclude that the coefficient of correlation is statistically significant.

4 0

3 years ago

Solve for x <br> This is also an octagon if it helps!

Karo-lina-s [1.5K]

Answer:

x = 10

Step-by-step explanation:

it has 8 sides so:

total interior angle degrees = (180° x 8 sides) - 360° = 1080°

11x + 14 + 4x + 87 +2x + 70 + 4x + 31 + x + 92 + 3x + 167 + 5x + 48 + 2x + 251 = 1080°

combine like terms:

32x + 760° = 1080°

subtract 760° from both sides of the equation:

32x = 320°

divide both sides by 32:

x = 10

8 0

3 years ago

Reason Abstractly Find two integers whose sum is -7 and whose

Travka [436]

Step-by-step explanation:

Let's represent the two integers with the variables $x$ and $y$ .

From the problem statement, we can create the following two equations:

$x + y = -7$

$xy = 12$

With the first equation, we can subtract $y$ from both sides to isolate the $x$ variable to the left-hand side:

$x = -7 - y$

Now that we have a value for $x$ , we can plug it into the second equation and solve for $y$ :

$(-7 - y)y = 12$

$-7y - y^{2} = 12$

Now, let's move everything to one side of the equation:

$y^{2} + 7y + 12 = 0$

Factoring this quadratic will give us two values for $y$ :

$(y + 4)(y + 3) = 0$

$y = -3, -4$

Since we now know $y = -3, -4$ , we can plug this back into either of the original equations to get a value for $x$ , which will be $x = -4, -3$ .

So the two numbers that sum to $-7$ and have a product of $12$ are $-3, -4$ .

7 0

3 years ago

Read 2 more answers

I am almost bankrupt asking the same question but....

ExtremeBDS [4]

Answer:

If you understand how I solved a you can do B. Keep at it!

Step-by-step explanation:

7 0

3 years ago