Help plzzzzz hurry

Mathematics

1 answer:

V125BC [204]3 years ago

6 0

Answer:

-9, -5, -4.1, -4

$\\q\leq -4$

Step-by-step explanation:

I think what you're missing here is that there is a negative sign in front of the q. This means that whatever number you put in for q will be multiplied by negative 1. Positive numbers will become negative, and negative numbers will become positive.

If you substitute 9 for q you will get $-9\geq 4$ , which is clearly not true, because -9 is way less than 4.

For writing the equation you divide both sides by -1. When you do this however, you must flip the inequality sign

$-q\geq 4\\q\leq -4$

the > sign turned into <, and the q and 4 switched signs.

You might be interested in

Lisa has a recipe that needs 3 fourths of a teaspoon of butter for every 3 cups of milk. If Lisa increases the amount of milk to

vfiekz [6]

1.25 teaspoon of butter per 5 cups of milk
3/4 tsp butter = 3 cups milk
5/4 tsp butter = 5 cups milk

6 0

4 years ago

A fair coin is flipped twelve times. What is the probability of the coin landing tails up exactly nine times?

seraphim [82]

Answer:

$P\left(E\right)=\frac{55}{1024}$

Step-by-step explanation:

Given that a fair coin is flipped twelve times.

It means the number of possible sequences of heads and tails would be:

2¹² = 4096

We can determine the number of ways that such a sequence could contain exactly 9 tails is the number of ways of choosing 9 out of 12, using the formula

$nCr=\frac{n!}{r!\left(n-r\right)!}$