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Arada [10]
2 years ago
7

Ignacio and Kirsten want to find out if the triangle formed by connecting (-1,-1). (-3,2), and (2, 1) is a right triangle Ignaci

o's plan: . Use the distance formula to find the lengths of the sides. • Then see if the side lengths satisfy the equation a2 + b2 = c2 to see if it is a right triangle Kirsten's plan: • Find the slopes of the three sides. • See if any two slopes are negative reciprocals of each other Which student's plan will work?​

Mathematics
1 answer:
navik [9.2K]2 years ago
8 0

Answer:

Both plans are correct

Step-by-step explanation:

I already did it

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The deer population in a national wildlife refuge has been decreasing by 5% each year.
mestny [16]

Answer:

750(1-\frac{5}{100})^{n}

Step-by-step explanation:

3 0
2 years ago
4x2-32x+48/3x2-17x-6 simplify completely
nekit [7.7K]
4(x-2)/3x+1
is the most simplified i can get 
4 0
2 years ago
Write the equation for the following relation. R = {(x, y): (4, 5), (8, 7), (12, 9), (16, 11), . . .} and show work
timama [110]

Let

A(4,5) B(8,7) C(12,9) D(16,11)

1) Find the slope AB

m=(y2-y1)/(x2-x1)

m=(7-5)/(8-4)=0.5

2) Find the slope BC

m=(9-7)/(12-8)=0.5

3) Find the slope CD

m=(11-9)/(16-12)=0.5

The points represent a linear function

so

<u>Find the equation of the line with m=0.5 and the point A(4,5)</u>

we know that

y-y1=m*(x-x1)

y-5=0.5*(x-4)

y=0.5*x-2+5

y=0.5*x+3

therefore

<u>the answer is</u>

The equation is equal to y=0.5*x+3

8 0
2 years ago
The distribution of the time it takes for different people to solve a certain crossword puzzle is strongly skewed to the right,
dezoksy [38]
<span>Answer: Skewed to right with mean 0 and S.D. 1 Explanation: Let's assume the z-scores as a linear transformation. then z=(x-mean)/S.D. = (x-30)/15 z(mean) = (30-30)/15= 0 z(sigma) = 15/15 = 1 Note: Shape does not change.</span>
5 0
3 years ago
A member was charged 260$usd and then applied for financial aid and received a 30% discount . They reach out and ask for the 30%
sergiy2304 [10]

Answer:

The total charge with the discount is $182

The refund is $78

Step-by-step explanation:

Given data

Charge= $260

Discount=30%

Let us find the amount of the 30%

=30/100*260

=0.3*260

=$78

The new charge after the discount is

=260-78

=$182

The total charge with the discount is $182

The refund is $78

5 0
3 years ago
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