2 years ago

Solve y = x2 - 18 for x. (Apex)

Mathematics

1 answer:

erik [133]2 years ago

4 0

Answer:

y = 18 or 36

Step-by-step explanation:

You might be interested in

It is possible none of the choices is the solution?

velikii [3]

Answer:

I am pretty sure the answer would be B!

Hope this helps

Mark me brainliest if I'm right :)

6 0

2 years ago

Consider the spiral given by c(t) = (e2t cos(2t), e2t sin(2t)). Show that the angle between c and c' is constant. c'(t) = _____L

Tcecarenko [31]

Answer:

angle is 45° which is constant

Step-by-step explanation:

We use formula for two vectors a and b to calculate angle θ between them by formula

cos θ = a . b / magnitude of a  × magnitude of b

Please see the attached file

8 0

2 years ago

Reflect the point (-1,-4) in the y-axis followed by the x-axis. What point does it end at? What quadrant is it in? Answer in a c

coldgirl [10]

The top right quadrant

7 0

2 years ago

Our environment is very sensitive to the amount of ozone in the upper atmosphere. The level of ozone normally found is 7.8 parts

Alexxandr [17]

Answer:

The value of the test statistic is $t = 2.67$

Step-by-step explanation:

The null hypothesis is:

$H_{0} = 7.8$

The alternate hypotesis is:

$H_{1} \neq 7.8$

Our test statistic is:

$t = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

In which X is the sample mean, $\mu$ is the value tested at the null hypothesis, $\sigma$ is the standard deviation and n is the size of the sample.

In this problem, we have that:

$X = 8.2, \mu = 7.8, \sigma = 0.6, n = 16$

Then

$t = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

$t = \frac{8.2 - 7.8}{\frac{0.6}{\sqrt{16}}}$

$t = 2.67$

The value of the test statistic is $t = 2.67$

5 0

2 years ago

Simplify this expression (7)(2x-5)

ruslelena [56]

14x-35 is answer I think

6 0

2 years ago