Answer:
how would you classify this triangle? remember you need two names.
Answer:
Step-by-step explanation:
(x-5)(x+6) / (x-3) less than or equal to 0
multiply both sides by x-3
(x-5)(x+6) less than or equal to (x-3)
Foil
x^2 + 6x -5x -30 less than or equal to x-3
simplify
x^2 + x -30 less than or equal to x-3
Add 30 to both sides and subtract x from oth sides
x^2 less than or equal 27
take a square root of both sides
x less than or equal to
Answer:
The correct answer is 4√3
Step-by-step explanation:
Consider the triangle ABC.
BC = 12 units. ∠ B = 90°. Let ∠ C = α°.
Now let us consider the triangle BDC.
DC = 4 units. ∠ D = 90°. Let ∠ C = α°.
We find here the angle C is common between both the triangles.
∴ For ΔABC, cos α° = 
= 
and for Δ BDC, cos α° = 
Now equating both the equations we get,
= 48
⇒ BC = 4√3
The length of BC is 4√3 units.
Answer:
Graph crosses the x-axis at x = 0 and has zeros at {-5, -5}.
Step-by-step explanation:
Note that f(x) factors as follows: f(x) = 4x^5 (x^2 + 10x + 25), which in turn factors into f(x) = 4x^5 (x + 5)^2.
To find the zeros, we set this f(x) = to 0 and solve for x:
{0, -5, -5}.
Thus, we can immediately eliminate the first two possible answers.
The factor x^5 tells us that the graph crosses the x-axis at 0. If we had x^6, which is an even power of x, the graph would only touch the x-axis at 0.
The correct answer choice is the third one.
Answer:
zero
Step-by-step explanation:
The coefficient of determination (R², or the square of the linear correlation coefficient r) is an indicator that allows us to judge a simple linear regression quality. It measures the fit between the model and the observed data or how well the regression equation is suited to describe the distribution of points.
A strong correlation between two variables is usually greater than 0.8. A weak correlation between two variables is usually less than 0.5, but a very weak correlation between two variables will be near zero.
