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Alchen [17]
3 years ago
13

Please help I learned this a while ago and forgot how to do it

Mathematics
1 answer:
lara [203]3 years ago
7 0

Answer:

The slope-intercept form is y=\frac{1}{2}x+\frac{11}{2}

Step-by-step explanation:

To find the slope, use

m=\frac{y^2-y^1}{x^2-x^1}

Replace the x and y values with the points.

m=\frac{7-5}{3-(-1)}

Solve.

m=\frac{2}{4}

m=\frac{1}{2}

After that, find the y-intercept form.

Put the equation in point-slope form.

y-5=\frac{1}{2}(x+1)

Replace x with 0.

y-5=\frac{1}{2}(0+1)

y-5=\frac{1}{2}

Add 5 to both sides.

y=5\frac{1}{2}

Convert to improper fraction form.

The y-intercept is \frac{11}{2}

Now finally, write in slope-intercept form. (y=mx+b)

m is slope, b is the y-intercept.

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Consider the following statements:
qwelly [4]

Correct order of question is;

Consider the following statements:

p: Niagara Falls is in New York.

q: New York City is the state capital of New York.

r: New York City has more than 40 inches of snow in 2525.

The statement p is true, and the statement q is false. Represent each of the following by a formula. What is their truth value if r is true? What if r is false?

(a) If Niagara Falls is in New York, then New York City is the state capital of New York. statements by a formula.

(b) Niagara Falls is in New York only if New York City will have more than 40 inches of

(c) Niagara Falls is in New York or New York City is the state capital of New York implies that New York city will have more than 40 inches of snow in 2525

(d) For New York City to be the state capital of New York, it is necessary that New York city would have more than 40 inches of snow in 2525

(e) For Niagara Falls to be in New York, it is sufficient that New York City will have more than 40 inches of snow in 2525

Answer:

A) p⇒q is false

B) p⇒r is false if r is false

C) (p V q) ⇒r is false is r is false

D) q⇒r is true whether or not r is true or false.

E) r⇒p is true whether or not r is true or false.

Step-by-step explanation:

We are given;

p: Niagara falls is in Now york to be true

q: New york city is the slate capital of New york to be False

r: New York city will have more than 40 inches of snow in 2525.

A) it's trying to say that if p is true, then q is true. But from the given statements, it doesn't follow because we are told p is true and q is false. Thus, we can write it as;

p⇒q is false

B) They are trying to suggest that p is true when r is true.

From given statements, p is true but r could either be true or false. Thus, we can write this as;

p⇒r is is true if r is true

Also, p⇒r is false if r is false

C) The statement implies that;

(p V q) ⇒r. However, again since r could either be false or true, we can say that;

(p V q) ⇒r is true if r is true

And (p V q) ⇒r is false is r is false

D) This statement suggests that q is true with r being true.

This can be written as;

q⇒r is true whether or not r is true or false.

E) This statement suggests that for r to be true, then p is true.

Thus;

r⇒p is true whether or not r is true or false.

4 0
4 years ago
Read 2 more answers
A school sore has 1200 pencils in stock , and sells an average of 24 pencils per day. The manager reorders when the number of pe
iren2701 [21]
You have 1200 pencils and you order more when your down to 500

So take 1200 - 500 to find how many pencils will be sold before you reorder.
1200 - 500 = 700

Then you take 700 / 24 to find how many days until you reorder.
700 / 24 = 29.1666666666666... You have round up because on day 29 you will have 504 pencils left

So 30 days until the manager reorders
7 0
4 years ago
Compare the values.<br> 9 x 10^2 is<br> ?<br> times as much as 3 x 10^-2.
barxatty [35]

Answer:

Hopefully this explains o_O, also Merry Christmas!

Step-by-step explanation:

9 x 10^2 = 9 x 100 = 900

3 x 10^-2 = 3 x 1/100 = 0.03

Ratio of 900:0.03

The first one is 30000 bigger than the second

5 0
3 years ago
Read 2 more answers
What are the coordinates of the vertex of the parabola with the equation y = x2 + 2x – 3?
Sonbull [250]

Answer:

  A.  (-1, -4)

Step-by-step explanation:

The vertex can be found by converting the equation from standard form to vertex form.

<h3>Vertex</h3>

Considering the x-terms, we have ...

  y = (x^2 +2x) -3

where the coefficient of x is 2. Adding (and subtracting) the square of half that, we get ...

  y = (x^2 +2x +(2/2)^2) -3 -(2/2)^2

  y = (x +1)^2 -4

Compare this to the vertex form equation ...

  y = a(x -h)^2 +k

which has vertex (h, k).

We see that h=-1 and k=-4. The vertex is (h, k) = (-1, -4).

On the attached graph, the vertex is the turning point, the minimum.

6 0
2 years ago
B+a=12 solve for B?
ivolga24 [154]
B = 12 - a

Subtract a from both sides to isolate b, and you get the answer.
8 0
4 years ago
Read 2 more answers
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