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3 years ago

Does this set of ordered pairs represent a function? Why or why not? {(–5, –5), (–1, –2), (0, –2), (3, 7), (8, 9)}

Mathematics

2 answers:

baherus [9]3 years ago

8 0

Answer:

The correct is D: Yes because every x-value corresponds to exactly one y-value: Apex

Step-by-step explanation:

kkurt [141]3 years ago

7 0

C is the choice for your answer

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Provide a counterexample to the statement.

lilavasa [31]

Answer:

acute triangle, obtuse triangle

Step-by-step explanation:

The sums of interior angles of all triangles are 180°, but the triangles are only similar if their corresponding angles are congruent.

An acute triangle and an obtuse triangle both have angle sums of 180°, but can never be similar to one another.

5 0

3 years ago

Solve the trigonometric equation in the interval [0, 2π). Give the exact value, if possible; otherwise, round your answer to two

svp [43]

Answer:

θ∈{ $\frac{\pi }{8},\frac{5\pi }{8},\frac{9\pi }{8},\frac{13\pi }{8}$ }

Explanation:

The given equation is

$sin(2\theta )-cos(2\theta )=0$

$\Rightarrow sin(2\theta )=cos(2\theta )\\\\\therefore \frac{sin(2\theta )}{cos(2\theta )}=1\\\\tan(2\theta )=1\\\\\therefore 2\theta =n\pi +\frac{\pi}{4}\\\\\therefore \theta =\frac{n\pi }{2}+\frac{\pi }{8}$

Applying values on 'n' we obtain values of θ that beling to [0,2π)

For n=0, θ= $\frac{\pi }{8}$

For n=1, θ = $\frac{5\pi }{8}$

For n=2,θ = $\frac{9\pi }{8}$

For n=3,θ = $\frac{13\pi }{8}$

6 0

4 years ago

Let f(x) be a continuous function such that f(1) and f'(x)-Vx3 + 6. What is the value of,f(5)? (A) 11.446 (C) 24.672 (B) 13.446

tia_tia [17]

Answer:

f(5) = 26.672 which is option D

Step-by-step explanation:

From question, f(1) = 2 and f'(x)=√(x^3 + 6)

f(5) = f(1) + (5,1)∫ f'(x) dx

Integrating using the boundary 5 and 1;

f(5) = 2 + (5,1)∫√(x^3 + 6) dx

f(5) = 2 + 24.672

So f(5) = 26.672

7 0

3 years ago

Rami sold concessions during a concert. He sold bottled water for $3.50 each and bags of trail mix for $4 each. By the end of th

AveGali [126]

Answer:

250 bottles and 150 bags of trail mix.

Step-by-step explanation:

You multiply 250 times 3.5 and get 875. Then you multiply 150 times 4 and get 600. Then add 875 plus 600 and get 1475.

7 0

3 years ago

Read 2 more answers

Please help me with question2 someone, thanks

Minchanka [31]

Answer:

Step-by-step explanation:

$\frac{3x-y}{4x+5y}=\frac{3}{5}\\\\$

Cross multiply

5*(3x-y) = 3*(4x + 5y)

5*3x -5*y = 3*4x + 3*5y

15x - 5y = 12x + 15y

15x - 12x = 15y + 5y

3x = 20y

3x = 4y * 5

$\frac{3x}{4y} = 5$

5 0

3 years ago