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2 years ago

Which is an equation of the line with a slope of 1/4 and a y-intercept of -2?

1 answer:

8 0

Answer:

y = 1/4x -2

Step-by-step explanation:

If the slope is 1/4, then you must multiply x by 1/4. If we plug 0 into 1/4x, we get 0, but we need -2, so we must subtract 2 in the equation.

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Paha777 [63]

3.6 simplifies to 36/10
and to make that a mixed number

3 and 6/10
simplify that and you get

3 and 3/5

Hope this helped!

7 0

3 years ago

motikmotik

Answer: She is not correct, because she must multiply the base and the height of the triangle and then divide by 2.

Step-by-step explanation:

1. The formula for calculate the area of a triangle is shown below:

$A=\frac{b*h}{2}$

Where $b$ is the base and $h$ is the height.

2. Then, if she applied the method she reasoned, she'd obtain the following area:

$b=\frac{4ft}{2}=2ft\\h=\frac{2.8ft}{2}=1.4ft\\A=2ft*1.4ft\\A=2.8ft^{2}$

3. But actually, Magda should multiply the base and the height of the triangle and then divide by 2. Then, the correct area is:

$A=\frac{4ft*2.8ft}{2}=5.6ft^{2}$

8 0

4 years ago

soldi70 [24.7K]

The values for x and y are respectively given as

This is further explained below.

<h3>What is the values for x and y ?</h3>

Generally, the equation for secent is mathematically given as

$secent = \frac{big arc - small arc}{2}$

Therefore

$40 = \frac{130-x}{2}$

80 = 130-x

x = 50

b) To Solve for y Now we find a measure of arc CD

ArcCD = 360-130-50

ArcCD = 180

In conclusion,(1/2) of the arc measure is equal to the angle that is on and inside a circle.

y = 180/2

y= 90