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2 years ago

- {(-3, 3), (1, 1), (0, -2), (1,-4), (5, -1)} Function?

Mathematics

1 answer:

Dmitry [639]2 years ago

4 0

Answer:

Step-by-step explanation:

It is not a function. (1,1) and (1,-4) are both points on the graph.

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An adult soccer league requires a ratio of at least 2 women per 7 men on the roster. If 14 men are on the roster, how many women

Snezhnost [94]

Answer:

Atleast 4 women

Step-by-step explanation:

Ratio of

Women to men = 2 : 7

Number of women needed to maintain the ratio if there are 14 men on the roster :

The minimum number of women required :

(2 : 7) * number of men in roster

(2 / 7) * 14

2 * 2 = 4 women

Atleast 4 women are required to main the ratio

7 0

2 years ago

I need help! please!

mamaluj [8]

Answer:

$- \frac{1}{3}$

Step-by-step explanation:

The only thing important in this question in the original equation is the slope, which is 3, the multiplyer for x. To find the opposite slope follow the steps below.

The first step is to make the original slope into a fraction.

$\frac{3}{1}$

Then flip the numerator and denominator.

$\frac{1}{3}$

Now multiply this value by -1.

$\frac{1}{3} \times ( - 1) = - \frac{1}{3}$

There is the opposite slope of 3.

7 0

2 years ago

A local am radio station broadcasts at a frequency of 764 khz. calculate the energy of the frequency at which it is broadcasting

pentagon [3]

The frequency of the emitted radio waves is:
$f=764 kHz = 7.64 \cdot 10^5 Hz$

The energy of a photon is given by:
$E=hf$
where h is the Planck constant and f is the photon frequency. Using the frequency given by the problem, we can find the energy of each photon of this radiation:
$E=hf=(6.6 \cdot 10^{-34} Js)(7.64 \cdot 10^5 Hz)=5.04 \cdot 10^{-28} J=5.04 \cdot 10^{-31} kJ$

7 0

3 years ago

Help me here please if....

Anna35 [415]

You can first use the fundamental trigonometric identity:

sin(x) ^2 + cos(x) ^2 = 1

=> cos(x) ^2 = 1 - sin(x) ^2

=> cos(x) ^2 = 1 - (-4/5)^2 = 1 - 16/25 = (25 - 16) / 25 = 9 /25

=> cos (x) = +/ - √ (9/25) = +/- 3/5

Now, analyze the sign.

In the fhird quadrant the cosine is negative, so the answer is cos(x) = - 3/5.

Answer: option C. - 3/5

4 0

2 years ago

15y^2-15y+2y+7-2y^2+4

scoray [572]

Answer:

13 y^2 - 13 y + 11

Step-by-step explanation:

Simplify the following:

15 y^2 - 2 y^2 + 2 y - 15 y + 4 + 7

Grouping like terms, 15 y^2 - 2 y^2 + 2 y - 15 y + 4 + 7 = (15 y^2 - 2 y^2) + (-15 y + 2 y) + (7 + 4):

(15 y^2 - 2 y^2) + (-15 y + 2 y) + (7 + 4)

15 y^2 - 2 y^2 = 13 y^2:

13 y^2 + (-15 y + 2 y) + (7 + 4)

2 y - 15 y = -13 y:

13 y^2 + -13 y + (7 + 4)

7 + 4 = 11:

Answer: 13 y^2 - 13 y + 11

8 0

2 years ago