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sweet-ann [11.9K]
3 years ago
7

Solve this quadratic equation using the quadratic formula. 5 - 10x - 3x2 = 0

Mathematics
1 answer:
mario62 [17]3 years ago
5 0

Answer:

Step-by-step explanation:

I have enclosed a picture of the quadratic formula because I cannot seem to write the proper formula since it wont let me

✯Hello✯

↪  Alright so first we need to work out values for A B AND C

↪  We need to rearrange this since its the wrong way around

↪  A = -3

B= -10

C= 5

↪  we substitute these values and we get x=0.44 and x=-3.78

❤Gianna❤

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Explain, how you can solve the pair of equations graphically. Wright the slope and y- intercept for each equation that you will
poizon [28]

You can solve the pair of equations graphically by finding where the two lines intersect/meet. The point where they intersect is the solution to both of the equations.

Slope-intercept form: y = mx + b    

(m is the slope, b is the y-intercept, or the point where x = 0 ---> (0 , y))

y = 7x - 9

m = 7

y-intercept = -9     ----->    (0, -9)

y = 3x - 1

m = 3

y-intercept = -1  ------>  (0, -1)

I'm not really sure what the last sentence of the question is asking, so you could clarify the question if you need help

6 0
3 years ago
Explain the effect of C on the graph of Y=f(x) for the function y=f(x+c)
irga5000 [103]

f(x) + c -> up by c

f(x) - c -> down by c

f(x + c) -> left by c

f(x - c) -> right by c

For y = f(x + c), the y value of x now takes the y value of the function of x + c, or the one c to the right of x, shifting the entire graph left by c.

8 0
3 years ago
Eric is a car salesman. He earns a weekly salary of $175 plus 4% commission on sales. This week he sold a car for $35,450.
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Step-by-step explanation:

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What is the domain of the function<br> F(x)= square root of 1/3 + 2?
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A biker travels the 120 mi from New York , NY to Wilmington, DE in 8 hours. A bus, a truck, and a rider on a horse take the same
creativ13 [48]

Answer:

The speed is inversely proportional to the time when the same distance is traveled.

Step-by-step explanation:

Given that:

The distance traveled by the biker in 8 hours is 120 mi.

The speed of the biker=120/8=15 mi/hr.

[as speed=Distance travelled/Time taken]

As all take the same route, so the distance traveled by all is the same which is 120 mi

The time taken by the bus to cover this distance is 2 hours.

So, the speed of the bus = 120/2=60 mi/hr.

The time taken by the truck is 2.5 hours.

So, the speed of the truck = 120/2.5=48 mi/hr.

And the time taken by the rider is 18.75 hours.

So, the speed of the rider = 120/18.75=6.40 mi/hr.

Now, observe that to cover the same distance, the bus takes the least time, so, the bus is traveling at the fastest speed among all, while the rider has the slowest speed as the distance is the same for all. The truck and the biker have speed in between the speed of the bus and the rider.

It can be concluded that when the time of the journey for the same distance is less than speed is more.

So, the speed is inversely proportional to the time when the same distance is traveled.

Or, \text{Speed}\propto\frac{1}{Time}

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3 years ago
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