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3 years ago

Which linear function represents the line given by the point -slope equation y-2=4(x-3)

Mathematics

2 answers:

VladimirAG [237]3 years ago

6 0

Answer:

Step-by-step explanation:

ITS D

vampirchik [111]3 years ago

5 0

Answer:

The linear function would be f(x) = 4x - 10

Step-by-step explanation:

In order to find this, we need to take the equation and solve it for y.

y - 2 = 4(x - 3)

y - 2 = 4x - 12

y = 4x - 10

Now we replace the y with f(x) and this is the function.

f(x) = 4x - 10

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solve for x. if anyone could explain how exactly I solve this question, it would be greatly appreciated!!! thank you

Gennadij [26K]

Answer:x=29

Step-by-step explanation:

You want to add all the like terms together so in this case 2x and x

29,30,20,8

3x=87

Divide 3 by both sides

X=29

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3 years ago

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Marina86 [1]

Answer:

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Step-by-step explanation:

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3 years ago

Which simplified expression represents the area of the parallelogram

Lerok [7]

Just multiply the sum of the numbers then divide

4 0

4 years ago

Equation<br><img src="https://tex.z-dn.net/?f=%28z%20%2B%20%20%5Cfrac%7B6%7D%7B7%7D%20%29%20%2B%20%20%5Cfrac%7B2%7D%7B14%7D%20%2

ddd [48]

Given:

The equation is

$\left(z+\dfrac{6}{7}\right)+\dfrac{2}{14}=-1$

To find:

The solution of the given equation.

Solution:

We have,

$\left(z+\dfrac{6}{7}\right)+\dfrac{2}{14}=-1$

It can be written as

$\left(z+\dfrac{6}{7}\right)+\dfrac{1}{7}=-1$

$\left(z+\dfrac{6}{7}\right)=-1-\dfrac{1}{7}$

Multiply both sides by 7.

$7z+6=-7-1$

$7z+6=-8$

$7z=-8-6$

$7z=-14$

Divide both sides by 7.

$z=\dfrac{-14}{7}$

$z=-2$

Therefore, the value of z is -2.

5 0

3 years ago

Can someone help me for this question please? I just keep getting wrong answer! Pls someone explain to me step by step! ASAP!!!

Kobotan [32]

Answer:

84 feet

Step-by-step explanation:

This problem involves several steps. The first step is to realize that the given figure does not show the required number of vertical stringers. It shows 5, but there will be 7 of them. The given diagram is helpful in that it shows a vertical stringer on the centerline of the arches.

The second step is to write a function that will tell you how long the stringer will be. I find it convenient to write the equation for an arch shape such as this using the parent function h(x) = 1-x^2. This parent function gives an arch of height 1 and width 1 from center (a total width of 2). You want an arch that is 16 ft high and 40 ft wide (one side from center), so you must scale this parent function both horizontally (by 40) and vertically (by 16). It becomes ...

H(x) = 16(1 -(x/40)^2)

The taller arch is twice this height, so the length of a vertical stringer at position x is

vertical length = 2H(x) -H(x) = H(x)

That is, the function H(x) we defined can be used to find the length of the stringers.

The third step is to find the stringer lengths. It can save some energy if you realize that the problem is symmetrical, so that the stringer at x=-30 is the same length as the one at x=30. We need to find stringer lengths every 10 feet from -40 feet to +40 feet. Of course, the ones at ±40 feet are zero length, because that is where the two arches meet.

H(-30) = 16(1 -(3/4)^2) = 7

H(-20) = 16(1 -(1/2)^2) = 12

H(-10) = 16(1 -(1/4)^2) = 15

H(0) = 16

Then the fourth step is to add up the stringer lengths, rounding the result as required.

7 +12 +15 +16 +15 +12 +7 = 16 + 2(34) = 84 . . . . feet (no rounding needed)

Finally, you need to answer the question asked:

The sum of vertical stringer lengths is 84 feet.

5 0

3 years ago