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KIM [24]
3 years ago
7

MATH QUIZ BOUNUS ROUND: 44÷66÷777÷77÷88÷99÷0÷5000000000×6678-54389=

Mathematics
2 answers:
elena-14-01-66 [18.8K]3 years ago
5 0

Answer:

0

Step-by-step explanation:

Since you multiplied and divided the answer by 0, the ultimate answer will be zero.

even if you multiply everything by crazy numbers, and then you decide to divide it by zero,

your answer will be 0

:)

RideAnS [48]3 years ago
3 0

Answer:

Infinity

Step-by-step explanation:

I used a calculator

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PLEASE HELP ASAP I'M TIMED
jekas [21]

Answer:

C

Step-by-step explanation:

7 0
3 years ago
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NEED ASAP 50 PTS FOR ANSWER
vladimir2022 [97]

Answer:

This says that the product of 3 numbers (x, x-6 and x+2) is greater than zero. In other words the product of three numbers is positive. The key to the solution is the answer to the question: "How can is it possible to get a positive result when you multiply 3 numbers?" I hope the answer is obvious to you. You get a positive result when multiplying 3 numbers when a) all 3 numbers are positive, or b) two of the numbers are negative and the third one is positive. Any other combination of 3 numbers will have a negative or zero result. So the solution to this inequality will be all the x values that make

all 3 factors positive, or

make two of the factors negative and the third one positive

Now we just have to figure out how to translate this idea into number sentences. Making this translation is easier if we take time to figure out the order of the factors, if possible. Which one is the largest? Which one is the smallest? And which one is the middle factor? Even though we do not know what value x may be, it is possible, with these 3 factors, to know the order of them. After thinking about this for a while I hope you can see that (x+2) will always be greater than the other two factors, no matter what x happens to be. Similarly (x-6) will always be less than the other two no matter what x happens to be. And that makes x the in between factor. If you have trouble seeing this:

Picture a number line.

Picture any random point on this number line. (This is our "x").

x+2 will be two units to the right of x. Being to the right makes x+2 greater than x.

x-6 will be 6 units to the left of x. Being to the left makes x-6 less than x.

With x-6 to the left and x+2 on the right, x is the in-between number.

Knowing the order of the factors, combined with some logic, will make expressing the ideas "the three factors are positive" and "two factors are negative and one is positive" easier.

"The three factors are positive"

Without using the order or any logic we could say:

x+%3E+0 and x-6+%3E+0 and x+%2B+2+%3E+0

This is not terribly difficult to solve. But if we use the order and some logic we can come up with something much easier. Think about this: If the lowest of three numbers is positive, wouldn't the other two have to be positive, too? In other words, if the lowest of three numbers is to the right of zero on the number line, wouldn't the other two numbers, which are to the right of the lowest, also be to the right of zero? I hope you can see the logic of this. So to make all three factors positive we just have to make sure the lowest one is positive:

x-6+%3E+0

"Two factors are negative and one is positive"

Without using the order or any logic we would have to describe every possible combination of two negative factors and one positive factor:

((x+%3C+0) and x+-+6+%3C+0 and x+%2B+2+%3E+0) or (x+%3C+0) and x+-+6+%3E+0 and x+%2B+2+%3C+0) or (x+%3E+0) and x+-+6+%3C+0 and x+%2B+2+%3C+0))

Yikes!! This is solvable but it will take a lot of work. But if we use the order sand some logic we can get something much simpler to solve. When we know the order of the factors, in order to have 2 of three factors negative and one of them positive we only have to make sure that the in between factor is negative and the largest factor is positive. This is so because if the in-between factor is negative then the smallest of the three would have to be negative, too. So to make two factors negative and one positive all we have to say is:

(x+%3C+0 and x+%2B+2+%3E+0)

I hope you agree that using the order and some logic makes this problem much easier to solve. When you know the order of the factors this way is much easier. (Note: if it is not possible to figure out the order of the factors, then you must use the much longer, more complicated compound inequalities.)

Remember that our solution is the set of x values that make "all three factors positive or make two factors negative and one positive". Using what we figured out above this is:

(x+-6+%3E+0) or (x+%3C+0 and x+%2B+2+%3E+0)

Now we solve this compound inequality:

(x+%3E+6) or (x+%3C+0 and x+%3E+-2)

In interval notation (x+%3E+6) is (6, infinity)

In interval notation (x+%3C+0 and x+%3E+-2) is (-2, 0)

As for "My teacher is also asking me to find the vertex, axis and symmetry.": I agree, WHAT??. Even though I think it was phrased "axis of symmetry" not "axis and symmetry" it still doesn't make sense. The words "vertex", "axis of symmetry" apply to graphs of two variable sentences (usually parabolas). But we do not have a y. And if the inequality was x%28x-6%29%28x%2B2%29+%3E+y it would simplify to x%5E3+-4x%5E2+-12x+%3C+y. This is a cubic inequality not a quadratic inequality. Its graph would not be a parabola, would not have a vertex and would not have an axis of symmetry.

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Please help answering questions 215 and 216.
kodGreya [7K]

Problem 215

Check out the attached image. Line up the letters ABC and CDE so the first set of letters are over the second set of letters. Order is important here. Note how A corresponds to C (second C), B corresponds to D, and (the first) C corresponds to E.

We have this mapping:

A <--> C

B <--> D

C <--> E

This means...

Angle BAC corresponds to Angle DCE (red angles)

Angle ABC corresponds to Angle CDE (blue angles)

Angle BCA corresponds to Angle DEC (green angles)

It also means...

Side BC corresponds to Side DE (red sides)

Side AC corresponds to Side CE (blue sides)

Side AB corresponds to Side CD (green sides)

Check out the attached image which I hope clears up any confusion you may have. Often I think it helps to represent stuff like this in a visual way.

============================================

Problem 216

Answer: True

Since triangle ABC is congruent to triangle DEF, this means that side AB is congruent to side ED. These are corresponding sides. Since AB = 6, this means ED = 6 as well.

8 0
3 years ago
G is between E and H, and F is the midpoint of EG. If FG=2 and FH=8, find EH.
kykrilka [37]

Answer:

EH = 10

Step-by-step explanation:

Because F is a midpoint, that means that FG and EF are congruent to each other. So, since FG = 2, that means that EF also equals 2. Because FH also includes FG, you can take the 2 from the FG, and then take that 2 away from 8. Now you know that GH = 6. All that is left is to add all 3 of the units together (2+2+6=10).

8 0
2 years ago
Q: A is 8km due north of phone mast B. C is 9.5km due west of phone mast B. Calculate the distance AC
Evgen [1.6K]

Answer:

AC = 12.4 km (nearest tenth)

Step-by-step explanation:

AC can be calculated by using Pythagorean Theorem.

Thus:

AC² = AB² + BC²

Plug in the values

AC² = 8² + 9.5²

AC + √{154.25)

AC = 12.4 km (nearest tenth)

7 0
2 years ago
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