What is the slope of the line whose equation is -3x+y=12

2 answers:

8 0

The equation for slope-intercept form is

mx+y=b in which m represents the slope.

In this equation the slope is -3 which means that to get to the next point in the line you have to rise -3 and run 1 which also means go down 3 units and go right 1 unit

Hope that made sense and helped you :D

docker41 [41]3 years ago

6 0

$3x is the answer as the opposite of -3 in front of x is 3$

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Let f be the function that determines the area of a circle (in square cm) given the radius of the circle in cm, r. That is, f(r)

yarga [219]

Answer:

The answers to each question are:

a) $A=f(r=4cm)=50.26cm^2$

b) $\Delta A(10.91cm-10.9cm)=f(10.91cm)-f(10.9cm)=0.6851cm^2$

c) $C=5\cdot f(r=12.7cm)=2533.54cm^2$

d) $D=f(r=28cm)+59cm^2=2522.01cm^2$

Step-by-step explanation:

The function f(r) that represents the area of a circle (in square cm) is:

$f(r)=\pi r^2$

a) To represent the area (in square cm) of a circle whose radius is 4 cm, you just have to evaluate the function with a radius of 4cm:

$A=f(r=4cm)=50.26cm^2$

b) To represent how much the area (in square cm) of a circle increases by when its radius increases from 10.9 to 10.91 cm, you have to represent the difference between the final area with a radius of 10.91cm and the initial area of a radius of 10.9cm:

$\Delta A(10.91cm-10.9cm)=f(10.91cm)-f(10.9cm)=0.6851cm^2$

c) To represent the area of 5 circles that all have a radius of 12.7 cm, we can use the function f(r) to represent the area of a circle with a radius of 12.7cm and multiply it for 5:

$C=5\cdot f(r=12.7cm)=2533.54cm^2$

d) To represent the area of the larger circle that is 59 square cm more than the first circle (with a radius of 28 cm), we can use the function f(r) to obtain the area of the first circle and addition 59 square cm:

$D=f(r=28cm)+59cm^2=2522.01cm^2$

6 0

3 years ago

On Tuesday, Hayley only has 15 cups of flour and 9 eggs, but she has more than enough butter and sugar. Which system of linear i

BabaBlast [244]

Missing part of the question

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Banana Bread

1 egg 3 cups of flour 2 cups of sugar 0.25 stick of butter

Answer: