Answer:
- x = -1/2(1 +√21) ≈ -2.79129
- x = -1/2(1 -√21) ≈ 1.79129
Step-by-step explanation:
We assume the middle term is supposed to be 4x.
We can remove a common factor of 4 to simplify this a bit.
x^2 +x -5 = 0
This is of the form
ax^2 +bx +c = 0
where a=1, b=1, c=-5.
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The <em>quadratic formula</em> gives the solutions as ...
Filling in the given coefficients, we have ...
x = (-1 ±√(1^2 -4·1·(-5)))/(2·1)
x = (-1±√21)/2
The solutions are x = -1/2(1 +√21) and -1/2(1 -√21).
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<em>If what you wrote is what you intend</em>, then the equation simplifies to 4x^2 -16 = 0.
Dividing by 4 and factoring the difference of squares gives ...
x^2 -4 = 0
(x -2)(x +2) = 0
These factors are zero (hence their product is 0) for the values x = 2 and x = -2.
The solutions are x=2 and x=-2.
Answer:
Coordinates: (2, -1)
Part A
X coordinate is positive
Y coordinate is negative
Part B
Coordinates after Y-axis reflection: (-2, -1)
X coordiate is negative
Y coordinate is negative
Good luck!
Answer:
Eden has 40 basketball cards
Step-by-step explanation:
Just do 5*8 which equals to 40, you can go back and check your answer by finding the 1/5 of 40 and you would receive 8
Cant anwer becausr idk what the triangle looks like
To make a prediction as to how much you can climb in 5 hours we can find the line of regression (or line of best fit) for the data given, with time as the explanatory (or independent) variable and height as the response (or dependent) variable. Putting this data into the calculator we get:
Height (ft) = 33.153 + 2.333*Time (min)
Now if we want to predict the distance you are able to climb in 5 hours, we need to convert this to minutes first (as those are the units in the formula) - 5 hours = 300 minutes, thus:
Height (ft) = 33.153 + 2.333*300
= 733.053 ft
733.053 < 1000, therefor it is predicted that it will not be possible to climb a 1000 ft rock formation within 5 hours