T/F every function is a relation

Answers

Answer 1

Answer: True
Every function is a relation, but not every relation is a function.

Hope this helps :)

Answer 2

Answer: Every function is a relation. However, not every relation is a function. In a function, there cannot be two lists that disagree on only the last element.

Hope this helps :)

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F(x+2)= 3x +5 find the value

Answers

If F wasn't unknown cause it cannot be then:
x+2 = 3x+5
-2x = 3
x = -3/2

x+2=3x-5
3x-5=x+2
3x-x=2+5
2x=7
x=7/2

Order -3.98, 3 8/9, -3 11/12, and 3.9 repeated from least to greatest

Answers

Answer:

Step-by-step explanation:

-3.98

3 8/9 = 3.888 (repeating)

-3

3.9

least to greatest :

-3.98 , -3, 3 8/9, 3.9

Photo attached! 10 points! Thank you in advance!!

Answers

$ax^2+bx+c=0\n\nx^2+7x+9=3\qquad|\text{subtract 3 from both sides}\n\nx^2+7x+9-3=3-3\n\n\boxed{x^2+7x+6=0\to A.}$

$a=1,\ b=7,\ c=6$

The answer is A because you subtract 3 from both sides to get the equation set to 0

The area of a square battlefield was 22,500 square miles. How long will it take a group of soldiers to cross the field diagonally at the rate of 3.2 miles/hour? Show work and explain

Answers

$√(22500) = s \n\ diagonal = s √(2) \n\ s = 150, \ diagonal = 150√(2) \n\ diagonal \approx 212.132 \n\ 212.132/3.2 \approx 66.291 \ hrs$

a baker has 20 pounds of sugar. He uses 3/4 of the sugar to bake muffins. How many sugar does he have left?

Answers

This is a wonderfully easy problem. So, you start off by dividing the pounds of sugar by the denominator which is 4. So:

20 / 4 = ?

Then you that product and multiply it by the numerator, which is 3 in this case and you get your answer.

If 20 is 100% then 20 divided by 4 equals 5 so 20 lbs. - 5 lbs. = 15 lbs. the baker has 15 pounds of sugar left.

What is 1 and 3/4 + 1 and 5/8?

Answers

Answer:

3 3/8

Step-by-step explanation:

1 3/4 + 1 5/8

We need to get a common denominator of 8

1 3/4 *2/2 + 1 5/8

1 6/8 + 1 5/8

I like to line them up vertically

1 6/8

1 5/8

---------------

2 11/8

But 11 is larger than 8 so we subtract 8/8 and add 1

2 11/8

+1 -8/8

---------------

3 3/8

The answer of this question is 3.375

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