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elixir [45]
3 years ago
9

Find the slope -5/4 4/5 -4/5

Mathematics
1 answer:
Sunny_sXe [5.5K]3 years ago
8 0

Answer:

The slope of the line is \frac{4}{5} ⇒ B

Step-by-step explanation:

You can find the slope of a line using any two points on the line (x1, y1) 1nd (x2, y2) by using this rule m=\frac{y2-y1}{x2-x1}

<em>Let us use this rule to answer the question</em>

From the attached graph:

∵ The given line passes through points (-1, -2) and (4, 2)

→ That means point (x1, y1) = (-1, -2) and point (x2, y2) = (4, 2)

∴ x1 = -1 and x2 = 4

∴ y1 = -2 and y2 = 2

→ Substitute their values in the rule of the slope above

∴ m=\frac{2--2}{4--1}=\frac{2+2}{4+1}=\frac{4}{5}

∴ The slope of the line is \frac{4}{5}

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A rectangular bedroom is 4 ft longer than it is wide. Its area is 140 ft2. What is the width of the room? ft
steposvetlana [31]

Answer: width = 10 ft

Step-by-step explanation:

Area = length × width

Let l be length and w be width

l = w + 4 ........equation (1)

From above formula

140 = l × w. ........equation (2)

Substitute equation (1) into equation (2)

140 = (w+4) × w

w^2 + 4w= 140

w^2 + 4w - 140= 0

By factorization method

(w+14)(w-10)= 0

w=-14 or w= 10

So now width is 10 ft

From equation(1)

l=w+4

l= 10+4

l= 14 ft

Width = 10 ft and length = 14 ft

3 0
3 years ago
Read 2 more answers
3. Jim invests $3500, compounded annually at 12% for 3 years. What is the total
irga5000 [103]

Answer:

None of the above, it should be $4760

Step-by-step explanation:

First, converting R percent to r a decimal

r = R/100 = 12%/100 = 0.12 per year,

then, solving our equation

I = 3500 × 0.12 × 3 = 1260

I = $ 1,260.00

The simple interest accumulated

on a principal of $ 3,500.00

at a rate of 12% per year

for 3 years is $ 1,260.00

3 0
2 years ago
If a scatter plot has a positive correlation, that would be the same as if a graph has a negative slope.
ss7ja [257]
True is the answer.
8 0
3 years ago
Check picture to see question<br><br> no guessing
GaryK [48]
Y= 40 x is the answer, hope this helped.
6 0
2 years ago
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Hey can you please help me posted picture of question
fredd [130]
The discriminant can be determined from the number of roots of the graph.

If Disc> 0, the function has two distinct roots
If Disc = 0, the function has a repeated root
If Disc < 0, the function has no real root.

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So the answer to this question is option C
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3 years ago
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