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Ugo [173]
3 years ago
12

PLZZZZZZZZ HLPPPPPPPPPPPPP MEEEEEEEEEEEEE

Mathematics
1 answer:
konstantin123 [22]3 years ago
4 0

Answer:

(x1,y1)=(−2,2)

(x2,y2)=(0,−2)

Use the slope formula:

m= y2−y1 /x2−x1

= −2−2 /0−−2

= −4 /2

=−2

Answer:

m=−2 This is the slope

So,the slope intercept form for 2 points is y-y1=m(x-x1)   m=slope  

y-y1=m(x=x1)

y-2=-2(x-(-2)     ( - and - is +) So,the final equation is:

y-2=-2(x+2)

I hope this help you :)

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A poster is to have a total area of 125 cm2. There is a margin round the edges of 6 cm at the top and 4 cm at the sides and bott
jeka57 [31]

Answer:

The correct answer is 15 cm.

Step-by-step explanation:

Let the width of the required poster be a cm.

We need to have a 6 cm margin at the top and a 4 cm margin at the bottom. Thus total margin combining top and bottom is 10 cm.

Similarly total margin combining both the sides is (4+4=) 8 cm.

So the required printing area of the poster is given by {( a-10 ) × ( a - 8) } cm^{2}

This area is equal to 125 cm^{2} as per as the given problem.

∴ (a - 10) × (a - 8) = 125

⇒ a^{2} - 18 a +80 -125 =0

⇒ a^{2} - 18 a -45 = 0

⇒ (a-15) (a-3) = 0

By law of trichotomy the possible values of a are 15 and 3.

But a=3 is absurd as a > 4.

Thus the required answer is 15 cm.

7 0
3 years ago
Read 2 more answers
A clothing store put a sales price of $48 on a purse. Before the markup, the store paid $40 for the purse. What percent markup d
Nimfa-mama [501]

Answer:

20% mark up

Step-by-step explanation:

[(48-40)/40]×100%= 20%

8 0
3 years ago
Can you please help me fill this out thanks
RoseWind [281]
For perimeter you just add the sides up, so 15+12+9 which = 36
7 0
3 years ago
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Which shows the correct method for solving the equation below?<br> 1/3 (y-9) =3
iragen [17]

Answer:

y=18

Step-by-step explanation:

we have

\frac{1}{3}(y-9)=3

Multiply by 3 both sides

3*(\frac{1}{3}(y-9))=3*3

(y-9)=9

Adds 9 both sides

(y-9)+9=9+9

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5 0
3 years ago
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Can someone please answer this I have been having trouble with this question all day.
Degger [83]

Answer:

The answer is  right - male - 63     Left - male - 5

left - female - 7    right - female - 34

Step-by-step explanation:

68 -63 = 5

12 - 5 = 7

109 - 96 = 13

3 0
3 years ago
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