Helppppp meeee pleassseee

The Stinker station raised the price on a gallon of gas from $2.45 to $2.63. What is the percent of increase on the price hike?

Mars2501 [29]

Answer:$5.00

Step-by-step explanation: ADDD

6 0

3 years ago

Graph the line with a slope of −1 that contains the point (3,6).

aksik [14]

Answer:

The equation of the line is y = -1.x + 9

Graph is provided in the attached figure

Step-by-step explanation:

The slope intercept equation of a line in 2D(x,y) coordinates is given by the equation

$y = mx + c$

where m is the slope of the line and c the y-intercept i.e. where the line crosses the y axis at x = 0

Given slope = -1, we can find c and the equation of the line

Since (3,6) is a point on the graph, these coordinates must satisfy the above equation

Substitute for y = 6 and x = 3

$6 = (-1)3 + c\\\\c = 9\\\\\textrm{Equation of line is }\\y = -1.x + 9 \\y = 9-x$

In the attached figure you can see that (3,6) is on the line

7 0

1 year ago

What is the equation of the <br> line?

snow_lady [41]

The answer is F, hope this helps!

3 0

3 years ago

Read 2 more answers

g A plane flying horizontally at an altitude of 2 miles and a speed of 550 mi/h passes directly over a radar station. Find the r

guapka [62]

Answer:

The rate at which the distance from the plane to the station is increasing is when it is 5 miles away from the station is 504 mi/h

Step-by-step explanation:

An illustrative diagram for the scenario is shown in the attachment below.

In the diagram, y represent the altitude, z is the horizontal distance from the plane to the station and x is the distance from the plane to the station.

From the Pythagorean theorem, we can write that

x² = y² + z²

Differentiate this with respect to time t

That is,

$\frac{d}{dt}(x^{2}) = \frac{d}{dt}(y^{2}) + \frac{d}{dt}(z^{2})$

= $2x(\frac{dx}{dt}) = 2y(\frac{dy}{dt}) + 2z(\frac{dz}{dt})$

$x(\frac{dx}{dt}) = y(\frac{dy}{dt}) + z(\frac{dz}{dt})$

The rate at which the distance from the plane to the station is increasing is $\frac{dx}{dt}$

$\frac{dy}{dt}$ is the rate at which the altitude is increasing, since the altitude is 2, that is constant, $\frac{dy}{dt} = 0$ .

$\frac{dz}{dt}$ is the rate at which the horizontal distance is increasing which is the speed, that is, $\frac{dz}{dt} = 550 mi/h$

$y = 2$ and $x = 5$

Now, we will determine z when x = 5.

From x² = y² + z²

5² = 2² + z²

25 = 4 + z²

z² = 25-4

z² = 21

z =√21

Putting all the values into the equation

$x(\frac{dx}{dt}) = y(\frac{dy}{dt}) + z(\frac{dz}{dt})$

$5(\frac{dx}{dt}) = 2(0) + \sqrt{21} (550)$

$5(\frac{dx}{dt}) = \sqrt{21} (550)$

$\frac{dx}{dt} = \frac{\sqrt{21} (550)}{5}$

$\frac{dx}{dt} = 504 mi/h$

Hence, the rate at which the distance from the plane to the station is increasing is when it is 5 miles away from the station is 504 mi/h.

5 0

3 years ago

14. In a game show, contestants must guess the price of a product. A contestant is given nine cards with the numbers 1 to 9 writ

lara31 [8.8K]

Answer:

504 different prices can be formed using these cards.

Step-by-step explanation:

Different prices can be formed using these cards:

$P^{n}_{k}=\frac{n!}{(n-k)!}$

where = n = number of cards

k = number of cards to be chose

n= 9, k = 3

$P^{9}_{3}=\frac{9!}{(9-3)!}$

$\frac{9\times 8\times 7\times 6!}{6!}=504$

504 different prices can be formed using these cards.

We calculated the number of permutations. We made this choice because in permutation order of element matters but in combination its not.

3 0

3 years ago