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3 years ago

7

Allison was looking at a map with the following scale indicator. 2 inches = 6 miles

2 answers:

xeze [42]3 years ago

3 0

answer: 9

the answer is 9 because 6 ÷ 2 = 3, and if you multiply 3 with 3, you get 9. you multiply the number 3 because you need to find out the distance in miles, and since in inches it is 3, you need to multiply by 3 because that is the formula to get miles.

klemol [59]3 years ago

3 0

Answer:

There is a distance of 9 miles between the two towns.

Step-by-step explanation:

We know that 2 inches is 6 miles. But to solve the question, we have to find out how many miles 3 inches is equal to.

In order to solve this, multiply 6 x 1.5, since 3 = 2 x 1.5.

6 x 1.5 = 9

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Stella [2.4K]

<u>Question:</u>

Find the number of real number solutions for the equation. x^2 + 5x + 7 = 0

<u>Answer:</u>

The number of real solutions for the equation $x^{2}+5 x+7=0$ is zero

<u>Solution:</u>

For a Quadratic Equation of form : $a x^{2}+b x+c=0$ ---- eqn 1

The solution is $x=\frac{-b \pm \sqrt{b^{2}-4 a c}}{2 a}$

Now , the given Quadratic Equation is $x^{2}+5 x+7=0$ ---- eqn 2

On comparing Equation (1) and Equation(2), we get

a = 1 , b = 5 and c = 7

In $x=\frac{-b \pm \sqrt{b^{2}-4 a c}}{2 a}$ , $b^2 - 4ac$ is called the discriminant of the quadratic equation

Its value determines the nature of roots

Now, here are the rules with discriminants:

1) D > 0; there are 2 real solutions in the equation

2) D = 0; there is 1 real solution in the equation

3) D < 0; there are no real solutions in the equation

Now let solve for given equation

$D= b^2 - 4ac\\\\D = 5^2 - 4(1)(7)\\\\D = 25 - 28 \\\\D = -3$

Since -3 is less than 0, this means that there are 0 real solutions in this equation.

4 0

4 years ago

Give a correct interpretation of a 99% confidence level of 0.102 < p < 0.236.

lord [1]

We are 99% confident that the interval from 0.102 to 0.236 actually does contain the true value of the population proportion <span>p.</span>

4 0

3 years ago

Read 2 more answers

Use the properties of operations to simplify this algebraic expression. rewrite the expression by following the directions in ea

o-na [289]

Step 3:

5x + 20 + 3x + 9x + 7 becomes

5x + 3x + 9x + 20 + 7

Step 4:

(5x + 3x + 9x) + (20 + 7)

Step 5:

17x + 27

If you have any further questions feel free to ask.

Hope this helps

5 0

3 years ago

Read 2 more answers

What is the volume of this model

saul85 [17]

39 dont forget the squared thigy

4 0

3 years ago

Please help!! I'm super confused :(

Kobotan [32]

Answer:

90 lb/1 x 0.45 = 40.5

Step-by-step explanation:

To convert pounds to kilograms you would have to multiply the pounds by 0.45. So you have to multiply 90 by 0.45.

5 0

3 years ago