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frozen [14]
3 years ago
13

-x+4(x+3)=-12is this never true or always true

Mathematics
1 answer:
rodikova [14]3 years ago
7 0

Answer: Never true.


Step-by-step explanation: Distribute the numbers: 4 times x is 4x, 4 times 3 is 12. Then you have the equation: -x+4x +12 = -12. Now, choose a random number, maybe -4. A negative plus a negative cancels out so you are left with 4-16(Because you distribute the number) +12 = -12. 4-16 is -12. -12 plus 12 equals 0.

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there are 4 coins. you get a dollar for every head. all four coins are flipped. what is the outcome? what about if you can choos
weqwewe [10]

The outcome for the flip is 2.

Probability:

Probability refer the possibility of the event required.

The probability formula is defined as the possibility of an event to happen is equal to the ratio of the number of favorable outcomes and the total number of outcomes.

Given,

There are 4 coins.

You get a dollar for every head. all four coins are flipped.

To find the outcome of the flips.

The possible outcomes from the initial flip are:

"4 heads" x 1

"3 heads" x 4

"2 heads" x 6

"1 heads" x 4

"0 heads" x 1

This gives an expected return of

=> (4 + 12 + 12 + 4 + 0)/16 = 2

So, the outcome is 2.

Either if you keep it then you have 2 as outcome of the flips, otherwise if you reflip the coins then you will get the same probability for it also.

To know more about Probability here.

brainly.com/question/11234923

#SPJ4

3 0
2 years ago
Anybody know please help
Reil [10]

Answer:

ok

Step-by-step explanation:

1

5 0
3 years ago
Below are the graphs of the functions y=2x and y3x What is the same about both lines?​
Yanka [14]
C they rise upward toward the right
5 0
2 years ago
Help me with this pls help
azamat

Answer:

1646/1

Step-by-step explanation:

To write 1646 as a fraction you have to write 1646 as numerator and put 1 as the denominator. Now you multiply numerator and denominator by 10 as long as you get in numerator the whole number.

1646 = 1646/1 = 16460/10

6 0
3 years ago
Read 2 more answers
Write each expression in quadratic form, if possible..<br><br> 5X^4 + 2X^2 - 8
Igoryamba

5X^4 + 2X^2 – 8

 

Its quadratic form is 5(x²)² +2x² -8

<span>Let be X²=p, so the final expression is 5p²+2p-8</span>

4 0
3 years ago
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