Find the distance between the two points in simplest radical form. The points given are (1,8) and (6,-4).
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Answer:
d = 13 units
Step-by-step explanation:
calculate the distance d using the distance formula
d =
let (x₁, y₁ ) = (1, 8 ) and (x₂, y₂ ) = (6, - 4 )
substitute these values into the formula for d
d =
=
=
=
= 13 units
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a zoo has 19 more species of fish than birds. There are 152 species of fish at the zoo. How many species of birds does the zoo have/ COULD THE EQUATION BE b-19=152.
6+(6-2)x6 I DONT GET ITTT
B -54 + 2b = -46
С 7b - 8 = -20
D b/8 - 6 = -8
Answers
Answer:
A
Step-by-step explanation:
-4/4 = -1
-1+5.5
=4.5
Answers
To generate a point, you plug in a number for x to get the corresponding y value.
If x = 0 for instance, then the y value is...
y = x^2 - 4
y = 0^2 - 4 ... x is replaced with 0
y = 0 - 4
y = -4
So x = 0 and y = -4 pair up to get the point (0,-4). This is the y intercept as the parabola crosses the y axis here. It turns out that this is also the vertex point as it is the lowest point on the parabola.
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If x = 1, then,
y = x^2 - 4
y = 1^2 - 4
y = 1 - 4
y = -3
meaning (x,y) = (1,-3) is another point on this line.
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Repeat for x = 2
y = x^2 - 4
y = 2^2 - 4
y = 4-4
y = 0
Since we got a y output of 0, we have found an x intercept located at (2,0). The other x intercept is (-2,0).
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The idea is to generate as many points as possible. Plot all of the points on the same xy coordinate grid. Then draw a curve through those points the best you can. You should get what you see in the diagram below. I used GeoGebra to make the graph. Desmos is another handy tool I recommend.
Note: the more points you generate, the more accurate the graph will be
Answers
Answer:
x = 1
y = -1
Step-by-step explanation:
y = 3x + 4y
3x + 3y = 0
So, we have 2 equations that are
3x + 3y = 0
x + 2y = -1
Times the second equation by -3
3x + 3y = 0
-3x - 6y = 3
-3y = 3
y = -1
Now put -1 in for y and solve for x
x + 2(-1) = -1
x - 2 = -1
x = 1
Let's check
1 + 2(-1) = -1
1 - 2 = -1
-1 = -1
So, x = 1 and y = -1 is the correct answer.
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if the exact equation is
==>(1-x)ln 2=(2x-3) ln 3
==>2x ln 3+x ln 2=ln 2 +3 ln 3
==>x=ln (2*3^3) / ln (2*3²)
==> x= ln(54)/ ln (18)
==>x ≈1,3800937....
if the equation is 2^1 -x =3^2 *x -3 then
2-x=9x-3
==>10x=5
==>x=1/2
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n - how many trials/questions do you have
p - probability guessing right answer to each question
x - how many successes do you expect.
Assuming the 6 questions are independent,
n=6 (questions)
p=probability of guessing the right answer (1/5)
x=exactly the number of successes over the 6 questions (2).
Look up the appendix table, or the Excel function to calculate the probability.