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3 years ago

How would you find x on #3

Mathematics

2 answers:

Nata [24]3 years ago

6 0

It would be 3x... So, well, yeh

marshall27 [118]3 years ago

4 0

I think that it is 6x... but i am not sure.

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The mayor of a town places a map of the town on a coordinate grid with Town Hall at the point (0,0) and with each unit represent

Lorico [155]

Answer:

Given that the question rightly asks the amount it cost to drive from Smithville to Jones City, we have;

The question rightly asks the amount it cost to drive from Smithville to Jones City is approximately $7.209

Step-by-step explanation:

The coordinates of Smithville is (-25, 10)

The coordinates of Jones City is (15, 12)

The cost of driving a car for a mile = $0.18

Therefore, the distance from Smithville to Jones City is given by the formula for the distance, l, between two points with coordinates as follows;

$l = \sqrt{\left (y_{2}-y_{1} \right )^{2}+\left (x_{2}-x_{1} \right )^{2}}$

Where;

(x₁, y₁) = (-25, 10) and (x₂, y₂) = (15, 12)

$l = \sqrt{\left (12-10 \right )^{2}+\left (15-(-25) \right )^{2}} = 2 \cdot \sqrt{401}$

The distance from Smithville to Jones City = 2·√401 ≈ 40.05 miles

The amount, A, it cost to drive from Smithville to Jones City a distance of approximately 40.05 miles is therefore given as follows;

A = 40.05 miles × $0.18 ≈ $7.209

8 0

3 years ago

Which of the following is a monomial?

UkoKoshka [18]

Answer:

It is D. ,C B

Step-by-step explanation:

Mono means single/one but binomial is only first because binomial is only (... +...)

So monomials are B,C,D

5 0

4 years ago

The perimeter of a rectangle is 234 meters.

Licemer1 [7]

I am going to show you how easy this is. Once you understand, you will be able to do this forever.

Assuming the side of the rectangle are (L) length and (W) width, the perimeter:

2L + 2W = 234

"the rectangle is twice as long as it is wide,", the equation for this statement:

L = 2W

In the first equation, we can replace L with 2W, then we have

2(2W) + 2W = 234

4W + 2W = 234

6W = 234

Divide both sides by 6

W = 234%2F6

W = 39 meters is the width

Remember it said the length is twice the width, therefore:

L = 2(39)

L = 78 meters is the length

Check this by finding the perimeter with these values

2(78) + 2(39) =

156 + 78 = 234

7 0

3 years ago

Which expression shows the result of applying the distributive property to 3(2x−6) ?

Fantom [35]

The distributive property means you're multiplying both numbers in parenthesis. So, 3 * 2 = 6. (hold onto x & -) 3 * 6 = 18. So, your answer is B. 6x - 18

Hope this helps!

7 0

4 years ago

Read 2 more answers

Consider the quadratic function f(x)=−x^2+x+30

yaroslaw [1]

Answer:

The smallest xx-intercept is $x = -5$

The largest xx-intercept is $x = 6$

The yy-intercept is $y = 30$ .

Step-by-step explanation:

Given a quadratic function in the following format:

$f(x) = ax^{2} + bx + c = 0, a \neq 0$

The x-values of the x-intercepts are $x_{1}, x_{2}$ , given by the following formulas.

$x_{1} = \frac{-b + \sqrt{\bigtriangleup}}{2*a}$

$x_{2} = \frac{-b - \sqrt{\bigtriangleup}}{2*a}$

$\bigtriangleup = b^{2} - 4ac$

We have that:

$f(x) = -x^{2} + x + 30$

This is not in the format above. I will multiply by (-1), so we have:

$f(x) = x^{2} - x - 30$

So, $a = 1, b = -1, c = -30$

$\bigtriangleup = b^{2} - 4ac = (-1)^{2} - 4*(1)*(-30) = 1 + 120 = 121$

$x_{1} = \frac{-b + \sqrt{\bigtriangleup}}{2*a} = \frac{-(-1) + \sqrt{121}}{2(1)} = \frac{12}{2} = 6$

$x_{2} = \frac{-b + \sqrt{\bigtriangleup}}{2*a} = \frac{-(-1) - \sqrt{121}}{2(1)} = \frac{-10}{2} = -5$

This means that

The smallest xx-intercept is $x = -5$

The largest xx-intercept is $x = 6$

The y-intercept is the value of f(x) when x = 0. So

$f(x)=−x^{2}+x+30$

$f(0) = 30$

The yy-intercept is $y = 30$ .

5 0

3 years ago