Ask question

Ask question

All categories

3 years ago

13

Please help me!! I’d really appreciate it!

1 answer:

Phantasy [73]3 years ago

6 0

A lot of teachers don't teach SohCahToa anymore! this acronym will really help you. I'd suggest looking up how to use it, it'll make trigonometry WAY easier!

You might be interested in

Find the probability that the person selected is between 26 and 35

DerKrebs [107]

Using it's concept, it is found that there is a 0.2426 = 24.26% probability that the person selected is between 26 and 35.

<h3>What is a probability?</h3>

A probability is given by the <u>number of desired outcomes divided by the number of total outcomes</u>.

Researching this problem on the internet, it is found that there is a table containing 1113 people, and out of 1113 people, 270 are between 26 and 35, hence the probability is given by:

p = 270/1113 = 0.2426.

More can be learned about probabilities at brainly.com/question/14398287

#SPJ1

7 0

2 years ago

What is the axis of symmetry of the of the quadratic equation y=x2+4x-5

musickatia [10]

Vx = axis of symmetry
Vx=-b/2a
b=4 and a=1

Vx=-4/2
Vx=-2

therefore, the AOS is x= -2

5 0

3 years ago

Read 2 more answers

In which direction does the graph of the function shown below open?

sp2606 [1]

Answer:

D. Up

Step-by-step explanation:

When a parabola has the form $y=ax^2+bx+c$ , It is vertical (opens up or down).

Because the variable "x" is squared.

If "a" is positive, then the parabola opens up, but if it is negative, then the parabola opens down.

In this case you have the quadratic function:

$f(x) = 2x^2+5x-4$

Which can be rewritten as:

$y = 2x^2+5x-4$

Therefore, it is vertical, because it has the form: $y=ax^2+bx+c$

You can observe that the value of "a" is:

$a=2$

Then, since "a" is positive, the parabola opens up.

5 0

3 years ago

Tina works for a medical technology company in sales. She travels to doctors' offices and offers them a suite of software relate

sesenic [268]

Answer: b. 1.94

Step-by-step explanation:

For binomial distribution model , the formula to find standard deviation is given by :-

$\sigma=\sqrt{np(1-p)}$

Given : The portability that the offices she visits will eventually purchase her product: p=0.25

The number of offices she visited = 20

We assume that the binomial is an appropriate model for the number of offices that make a purchase.

Then, to find the distance of the possible number of sales Tina could observe from the overall mean number of sales we find standard deviation.

$\sigma=\sqrt{np(1-p)}\\\\=\sqrt{20(0.25)(0.75)}\\\\=\sqrt{3.75}=1.9364916731\approx1.94$

Hence, the correct answer is option (b).

5 0

3 years ago

What is 75% of is 54

timama [110]

40.5 is the correct answer

3 0

3 years ago

Read 2 more answers