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vladimir2022 [97]
4 years ago
13

The ordered pair below represents a point of the line3y+4x=5. enter the missing y- Coordinate for this point in the box

Mathematics
1 answer:
Igoryamba4 years ago
4 0

9514 1404 393

Answer:

  (-1/4, 2)

Step-by-step explanation:

Substitute the given information into the equation and solve for y.

  3y +4(-1/4) = 5

  3y -1 = 5 . . . . . . simplify

  3y = 6 . . . . . . . . add 1

  y = 2 . . . . . . . . . divide by 3

The point is (-1/4, 2).

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Determine if each ratio is equivalent to 36:40 or not.
morpeh [17]

Answer:

There are no ratios, so I can't answer your question

Step-by-step explanation:

7 0
3 years ago
Given the polynomial 21x^4+3y-6x^2+34 1. What polynomial must be subtracted from it to obtain 29x^2-7? 2. What polynomial must b
zysi [14]

Answer:

21x^4+3y-35x^2+41 must be subtracted

As you can see, we added -x+2 to this polynomial to obtain a first degree polynomial. (Though really anything with an x would do. For example, 3x, 2221x, or -224x would all work)

Step-by-step explanation:

We have the following polynomial

21x^4+3y-6x^2+34

And need to find a polynomial to subtract from it to get

29x^2-7

This means that if we subtract these two polynomials, we will get our desired polynomial

21x^4+3y-6x^2+34-(29x^2-7)\\\\21x^4+3y-6x^2+34-29x^2+7\\\\21x^4+3y-35x^2+41

Just to be sure, we can then check our work by finding the difference of the first polynomial and the one that we just found

21x^4+3y-6x^2+34-(21x^4+3y-35x^2+41)\\\\21x^4+3y-6x^2+34-21x^4-3y+35x^2-41\\\\-6x^2+34+35x^2-41\\\\29x^2-7

As we got the desired result, we know that this answer is correct.

And now for the second part of the problem. What polynomial must be added to it to obtain a first degree polynomial?

Recall that a first degree polynomial is one that has the total sum of 1. For example the polynomial x+5 is a first degree polynomial, but x+y+5 has a degree of 2.

This means that our desired polynomial needs to only have some amount of x's and constants.

We can do the same thing as the first time and simply subtract our desired result from the first polynomial. For simplicity, let us use the simple polynomial x+2

21x^4+3y-6x^2+34-(x-2)\\\\21x^4+3y-6x^2+34-x+2\\\\21x^4+3y-6x^2-x+36

As you can see, we added -x+2 to this polynomial to obtain a first degree polynomial. (Though really anything with an x would do. For example, 3x, 2221x, or -224x would all work)

7 0
3 years ago
The area of peters room is 120 square feet. the length of his room is 12 feet. What is the width of his room? what is the perime
umka21 [38]

As you said the area is: 120sq ft. Also the length is 12ft. A formula for Volumes is Length x Width x Height. Length: 12

Width: 5

Height: 2

I hope u got the answer!...

3 0
4 years ago
Please help don’t get it
Romashka-Z-Leto [24]

Answer:

A

Step-by-step explanation:

One complete turn is 1 perimeter (aka circumference).

We have to find the length it turned, hence, its circumference.

The formula for circumference (C) of a circle is:

C=2\pi r

Where r is the radius

The radius is HALF of diameter. Given diameter is 250, the radius is:

r = 250/2 = 125 feet

Now, substituting in formula we have:

C=2\pi r\\C=2\pi (125)\\C=250\pi\\C=785.4

So, it turned 785.4 feet with 1 rotation.

The correct answer is A

4 0
4 years ago
4) Please help with question. MARKING BRAINLIEST AND 10 POINTS!!!!!!!!!!!!!! :D
baherus [9]
Since we can use direct substitution, we can just plug in x=0 into the equation.

x^{2} -1

=0^{2}-1

=-1

Thus, your answer is the first choice.

Have an awesome day! :)
5 0
3 years ago
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