MATHEMATICS COLLEGE

Select all of the solutions to the original equation X=4X equals -16 X equals minus 4X equals 16 X equals minus 8X equals minus 1X equals one X equals eight

Answers

Answer 1

Answer:

Answer: i don´t know the answer sorry

Step-by-step explanation:

$f( - 6) = - 10$

Step-by-step explanation:

$f(x) = (1)/(2) x - 7$

To find f(-6) , substitute the value of x that's - 6 into f(x). That is for every x in f(x) replace it with - 6

We have

$f( - 6) = (1)/(2) ( - 6) - 7 \n = - 3 - 7$

We have the final answer as

$f( - 6) = - 10$

Hope this helps you

Answer:

-10

Step-by-step explanation:

for f(-6)

we know ,

x is -6 as we are replacing value

now

f(x)=(1/2)x-7

or f(-6)=1/2*-6-7

or,f(-6)=-3-7

to therefore f(-6)= -10

How are the lizard and the spider part of the same food web??

Answers

Answer: plant → grasshopper → spider → frog → lizard → fox → hawk.

This is just one food chain that shows the sider and the lizard in the same foodchain. The frog eats the spider, and the lizard eats the frog.

Step-by-step explanation:

Ralph and Melissa watch lots of videos. But they have noticed that they don't agree very often. In fact, Ralph only likes about 10% of the movies that Melissa likes, i.e., P(Ralph likes a movie|Melissa likes the movie) = .10 They both like about 37% of the movies that they watch. (That is, Ralph likes 37% of the movies he watches, and Melissa likes 37% of the movies she watches.) If they randomly select a movie from a video store, what is the probability that they both will like it? prob. =

Answers

Answer:

There is a 3.7% probability that they both will like it.

Step-by-step explanation:

We can solve this problem using the Bayes rule derivation from conditional probability.

Bayes rule:

What is the probability of B, given that A?

$P(A/B) = (P(A \cap B))/(P(A))$

In this problem, we have that:

$P(A/B)$ is the probability that Ralph likes the movie, given that Melissa likes. The problem states that this is 10%. So $P(A/B) = 0.1$

$P(A)$ is the probability that Melissa likes the movie. The problem states that $P(A) = 0.37$ .

If they randomly select a movie from a video store, what is the probability that they both will like it?

This is $P(A \cap B)$ .

$P(A/B) = (P(A \cap B))/(P(A))$

$P(A \cap B) = P(A)*P(A/B)$

$P(A \cap B) = 0.37*0.10 = 0.037$

There is a 3.7% probability that they both will like it.

A farmer notes that in a field full of horses and chickens there are 35 heads and 98 feet. How many of each animal are there?

Answers

Answer:

There are 14 horses and 21 chickens.

Step-by-step explanation:

First, you have to make expression for horse and chicken. So we can let x be the number of horses and y will be the number of chickens. Next, given that the total number of feet for both animals is 98 so you have to make simultaneous equation :

$4x + 2y = 98$