What is the equation? 8th math

What is is value of f(8)

Vadim26 [7]

Answer:

Wouldn't it just be 8?

Step-by-step explanation:

f(8)

8f^1-1

8f^0

8x1

8

6 0

3 years ago

Which set of ordered pairs has point symmetry with respect to the origin (0, 0)? (5, 4), (-5, -4) (5, 4), (5, -4) (5, 4), (4, 5)

Sidana [21]

The set of ordered pair that has point symmetry in respect to origin is (5, 4), (-5, -4).

<h3>What is the point of symmetry?</h3>

This is a term that is used to refer to the points that are on the same distance from the origin but are on opposite sides.

The line that connects the points are known to move through the origin such that when measured on the graph, the distances between these points but they are opposite because they are in negatives and positives on the two sides.

Read more on point of symmetry here:

brainly.com/question/1553710

#SPJ1

4 0

2 years ago

Asap brainliest rewarded<br><br> 2<br> 3<br> 4<br> 5

klemol [59]

The answer is 4!!!!!!!!! :)

3 0

3 years ago

A graduate student majoring in linguistics is interested in studying the number of students in her college who are bilingual. Of

Eddi Din [679]

Answer:

48.41% probability that 17 or fewer of them are bilingual.

Step-by-step explanation:

Binomial probability distribution

Probability of exactly x sucesses on n repeated trials, with p probability.

Can be approximated to a normal distribution, using the expected value and the standard deviation.

The expected value of the binomial distribution is:

$E(X) = np$

The standard deviation of the binomial distribution is:

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

Normal probability distribution

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

When we are approximating a binomial distribution to a normal one, we have that $\mu = E(X)$ , $\sigma = \sqrt{V(X)}$ .

In this problem, we have that:

$n = 50, p = \frac{466}{1320} = 0.3530$

So

$\mu = E(X) = np = 50*0.3530 = 17.65$

$\sigma = \sqrt{V(X)} = \sqrt{np(1-p)} = \sqrt{50*0.3530*0.6470} = 3.38$

Probability that 17 or fewer of them are bilingual.

Using continuity correction, this is $P(X \leq 17 + 0.5) = P(X \leq 17.5)$ , which is the pvalue of Z when X = 17.5. So

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{17.5 - 17.65}{3.38}$

$Z = -0.04$

$Z = -0.04$ has a pvalue of 0.4841

48.41% probability that 17 or fewer of them are bilingual.

8 0

4 years ago

Use the four-step procedure to solve the following problem. Brine is a solution of salt and water. If a tub contains 50 pounds o

loris [4]

Answer:

18.3 pounds of water must evaporate to make it 8% solution

Step-by-step explanation:

Brine is a solution containing water & salt

Weight of brine solution = 50 pounds

amount of salts = 5% of 50 pounds = (5 ÷ 100) × 50 = 2.5 pounds.

Amount of water = 50 - 2.5 = 47.5 pounds

The new solution is to be made 8%, which indicates that 2.5 pounds of salt is going to be equivalent to 8% of the new salt and some amount of water has to be evaporated for the amount of salt to increase

Using direct relation expression

8% of the solution equivalent to 2.5 pounds of salt

100% will be equivalent to X pounds of solution

Upon cross multiplication,

X = (100 × 2.5) ÷ (8) = 31.25 pounds of solution

There amount of water that must evaporate is difference between weight of initial solution & final solution

Amount of water to be evaporated = 50 - 31.25 = 18.25 pounds ∞ 18.3 lbs

3 0

4 years ago