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Arte-miy333 [17]
3 years ago
14

What is the slope of the line that contains the points -2,7 and 2,3

Mathematics
1 answer:
Maurinko [17]3 years ago
8 0

Answer:

slope = -1

Step-by-step explanation:

y2-y1 divided by x2-x1

3-7= -4

2-(-2) = 4

-4 divided by 4 = -1

You might be interested in
Two sides of a right triangle measure 6 cm and 8 cm what is the length of the hypotenuse
andrew-mc [135]

Answer:

10 cm

Step-by-step explanation:

a^2 + b^2 =c^2

6^2 + 8^2 = c^2

36 + 64 = 100

then find the square root of 100 which equals 10

5 0
3 years ago
Help please<3
ale4655 [162]
Y=-3/2x+4

The slope is -3/2, since Kerry traveled three feet and only went down 2.

The y intercept is 4, since she started four feet above the origin
3 0
3 years ago
A car travels 9 miles in 7 minutes. How fast is it going in miles per hour? How fast is it going in meters per second?
Tems11 [23]

Answer:

he's going 77mph and then 2069 meters per hour.

8 0
1 year ago
Two vectors A⃗ and B⃗ are at right angles to each other. The magnitude of A⃗ is 5.00. What should be the length of B⃗ so that th
creativ13 [48]

Answer:

Length of B is 7.4833

Step-by-step explanation:

The vector sum of A and B vectors in 2D is

C=A+B=(a_1+b_1,a_2+b_2)

And its magnitude is:

C=\sqrt{(a_1+b_1)^2+(a_2+b_2)^2} =9

Where

a_1=Asinx

a_2=Acosx

b_1=Bsin(x+90)

b_2=Bcos(x+90)

Using the properties of the sum of two angles in the sin and cosine:

b_1=Bsin(x+90)=B(sinx*cos90+sin90*cosx)=Bcosx

b_2=Bcos(x+90)=B(cosx*cos90-sinx*sin90)=-Bsinx

Sustituying in the magnitud of the sum

C=\sqrt{(Asinx+Bcosx)^2+(Acosx-Bsinx)^2} =9

C=\sqrt{A^2sin^2x+2ABsinxcosx+B^2cos^2x+A^2cos^2x-2ABsinxcosx+B^2sin^2x} =9

C=\sqrt{A^2(sin^2x+cos^2x)+B^2(cos^2x+sin^2x)}

C=\sqrt{A^2+B^2} =9

Solving for B

A^2+B^2 =9^2

B^2 =9^2-A^2

Sustituying the value of the magnitud of A

B^2=81-5^2=81-25=56

B= 7. 4833

8 0
3 years ago
Phil is riding his bike. He rides 54 miles in 4 hours, 67.5 miles in 5 hours, and 81 miles in 6 hours. Find the constant of prop
AleksandrR [38]

Answer:

K=13,5

y=13,5x, x=numbers of hours

Step-by-step explanation:

To find the  proporcionality constant, divide the number of milles traveled in given time.

K=54/4=67,5/5=81/6=13.5 and the equation that describes the relationship is y=13,5x

3 0
3 years ago
Read 2 more answers
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