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2 years ago

15

1 point Find the length/distance between points (1,3) and (3,15).

1 answer:

pychu [463]2 years ago

6 0

Answer:

12.165525 is the answer

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Suppose that the functions u and w are defined as follows.

jasenka [17]

Answer(there are assumptions for this answer that you need to confirm and look at):

Assumptions: $u(x)=x^2+3$ and $w(x)=\sqrt{x+2}$

Answer if the operation is multiplication:

If you meant a closed dot which is the symbol for multiplication.

$(u \cdot w)(2)=14$

$(w \cdot u)(2)=14$

Answer if the operation is composition:

If you meant an open dot which is the symbol for composition.

$(u \circ w)(2)=7$

$(w \circ u)(2)=3$

Note: I don't know if you actually meant $w(x)=\sqrt{x+2}$ or if $w(x)=\sqrt{x}+2$ . Please let me know one way or the other.

Step-by-step explanation:

If we assume the functions are:

$u(x)=x^2+3$

$w(x)=\sqrt{x+2}$

$u \cdot w=w \cdot u$ since multiplication is commutative.

$u(2)=2^2+3$

$u(2)=4+3$

$u(2)=7$

$w(2)=\sqrt{2+2}$

$w(2)=\sqrt{4}$

$w(2)=2$

We are asked to find $(u \cdot w)(2)$ and $(w \cdot u)(2)$ .

The order doesn't matter in multiplication.

$(u \cdot w)(2)$

$u(2) \cdot w(2)$

$7 \cdot 2$

$14$

$(w \cdot u)(2)$

$w(2) \cdot u(2)$

$2 \cdot 7$

$14$

Now you might have meant composition which symbolized with an open circle, not a closed one.

$(u \circ w)(2)$

$u(w(2))$

$u(2)$ since $w(2)=2$

$2^2+3$

$4+3$

$7$

$(w \circ u)(2)$

$w(u(2))$

$w(7)$ since $u(2)=7$

$\sqrt{7+2}$

$\sqrt{9}$

$3$

6 0

3 years ago

What is the maxium number of right angles that can be contained in a triangle

alekssr [168]

Answer:

1

Step-by-step explanation:

A triangle can only have one right angle.

3 0

1 year ago

PLEASE HELP ME OUT I NEED IT !!

lisov135 [29]

Answer:

(1/2 ,3) or (0.5, 3) is the same

Step-by-step explanation:

The midpoint between (3,5) and (-2,1) would be:

Apply the formula:

x1+x2 / 2 , y1 + y2 / 2

= 3 + (-2) / 2, 5 + 1 /2

= 1/2, 6/2

= 1/2 ,3 or 0.5, 3 is the same

Hope this helped :3

4 0

3 years ago

Solve x2 – 2x – 15 = 0 using the zero product property.

Greeley [361]

The roots or the Zeros of <span>x^2 – 2x – 15 = 0 would be
C. x=5, -3</span>

3 0

3 years ago

Justify 3.020020002 is a rational number with step by step answer

Zanzabum

Answer:

This number is rational because there is a repeating pattern. Following the decimal, there is one 0 then a 2. This process repeats by adding a 0 each time the number 2 is passed.

Step-by-step explanation:

7 0

2 years ago