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MaRussiya [10]
3 years ago
13

Write the equation of the line, in slope intercept form, containing the points (2,-1) and (-2,7)

Mathematics
2 answers:
yarga [219]3 years ago
6 0

Answer:

y  =  − 2 x  + 3

Step-by-step explanation:

Amanda [17]3 years ago
6 0

Answer:

y= -2x +3

Step-by-step explanation:

Please see attached picture for full solution.

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Help pleaseeeeeeeeeeee
Jobisdone [24]

Answer:

I think its 302 cubic feet

5 0
3 years ago
2a² - a - 13 =2 I want to see the steps how its done​
sammy [17]

Answer:

Step-by-step explanation:

2a^-a-13=2

Subtract 2 from both sides :

2a^2-a-13=2=2-2

2a^2-a-15=0

Factor left side of the equation :

(2a+5) (a-3)=0

Set factors equal to 0 :

2a+5=0 or  a-3=0

a=-5/2   or a=3

8 0
3 years ago
(Optional topic) Should the government help the poor? In the 2014 General Social Survey, 32% of those sampled thought of themsel
alina1380 [7]

Answer:

0.71875

Step-by-step explanation:

Probability that a person thinks of himself as Democrat = P(A)= 0.32

Probability that a person agress that the govt. in Washington should do everything possible to improve the standard of living of poor= P(B)

Probability that a Democrat agress that the govt. in Washington should do everything possible to improve the standard of living of poor P(A ∩ B) = 0.23

P(B/A) = P(B∩A)/ P(A)

P(B/A)= 0.23/0.32

P(B/A) = 0.71875

8 0
3 years ago
The shorter leg of a right triangle is 21 feet less than the other leg. Find the length of the two legs if the hypotenuse is 39
mina [271]

Answer:

leg 1= 36  feet

leg2 = 15  feet

Step-by-step explanation:

Hi, we have to apply the Pythagorean Theorem:  

c^2 = a^2 + b^2  

Where c is the hypotenuse of the triangle (in this case the distance between Doreen’s house and the tower) and a and b are the other legs.  

leg1 = x

leg2 = x-21 (21 feet less than the other leg)

Replacing with the values given:  

39^2 = x^2 + (x-21)^2  

1,521 = x^2 + x^2 -42x +441

0 = 2x^2 -42x +441-1,521

0= 2x^2 -42x -1,080

For: ax2+ bx + c  

x =[ -b ± √b²-4ac] /2a  (quadratic formula)

Replacing with the values given:  

x=-(-42)± √(-42)²-4(2)-1080] /2(2)  

x= 42± √10,404] /4

x = 42± 102 /4

Positive:

x = 42+102 /4 = 36

leg 1= 36

leg2 = 36-21 =15

Feel free to ask for more if needed or if you did not understand something.  

6 0
3 years ago
Find the cost of tiling a rectangular plot of land 300 m long and 150 m wide at the rate of $6 per square m.
SVETLANKA909090 [29]

Answer:

$270,000

Step-by-step explanation:

First, find the area of the plot using the formula A = lw

A = lw

A = (300)(150)

A = 45,000

Then, multiply this by 6 to find the total cost:

45,000(6)

= 270,000

So, the cost to tile the plot is $270,000

7 0
3 years ago
Read 2 more answers
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