1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
sertanlavr [38]
3 years ago
8

Is (1,-4) a solution to the equation y=-2x

Mathematics
2 answers:
g100num [7]3 years ago
7 0
No, the solution to the equation would have to have an x value, the first term in the parentheses, have the value of the y value, the second term in the parentheses.
PolarNik [594]3 years ago
3 0
To figure this out, plug (1, -4) into the equation y=-2x. 1 is the x value, so we plug it into the x. -4 is the y value, so we plug it into the y spot. In the end we get -4=-2(1). Is this true? No, it isn't. Therefore it is not an answer.

If this helped please give brainliest, rate, and thank!
You might be interested in
I'm have some issues with the problem shown in the screenshot and would love some help.
KiRa [710]

The dimensions and volume of the largest box formed by the 18 in. by 35 in. cardboard are;

  • Width ≈ 8.89 in., length ≈ 24.89 in., height ≈ 4.55 in.

  • Maximum volume of the box is approximately 1048.6 in.³

<h3>How can the dimensions and volume of the box be calculated?</h3>

The given dimensions of the cardboard are;

Width = 18 inches

Length = 35 inches

Let <em>x </em>represent the side lengths of the cut squares, we have;

Width of the box formed = 18 - 2•x

Length of the box = 35 - 2•x

Height of the box = x

Volume, <em>V</em>, of the box is therefore;

V = (18 - 2•x) × (35 - 2•x) × x = 4•x³ - 106•x² + 630•x

By differentiation, at the extreme locations, we have;

\frac{d V }{dx}  =  \frac{d( 4 \cdot \:  {x}^{3}  - 106 \cdot \:  {x}^{2}  + 630\cdot \:  {x} )  }{dx} = 0

Which gives;

\frac{d V }{dx}  =12\cdot \:  {x}^{2}  -  212\cdot \:  {x} + 630 = 0

6•x² - 106•x + 315 = 0

x  =  \frac{ - 6 \pm \sqrt{106 ^2 - 4 \times 6 \times 315} }{2 \times 6}

Therefore;

x ≈ 4.55, or x ≈ -5.55

When x ≈ 4.55, we have;

V = 4•x³ - 106•x² + 630•x

Which gives;

V ≈ 1048.6

When x ≈ -5.55, we have;

V ≈ -7450.8

The dimensions of the box that gives the maximum volume are therefore;

  • Width ≈ 18 - 2×4.55 in. = 8.89 in.

  • Length of the box ≈ 35 - 2×4.55 in. = 24.89 in.

  • Height = x ≈ 4.55 in.

  • The maximum volume of the box, <em>V </em><em> </em>≈ 1048.6 in.³

Learn more about differentiation and integration here:

brainly.com/question/13058734

#SPJ1

7 0
1 year ago
What is the rationalizing factor of √3? ​
Vanyuwa [196]

Answer:

±  \sqrt{3}  \:  \: ( \sqrt{3}  \:  \: or \:  \:  -  \sqrt{3} )

Step-by-step explanation:

\sqrt{3}  \times  \sqrt{3}  = 3 \:  \: (rationalize)

\sqrt{3}  \times ( -  \sqrt{3} ) =  - 3

The rationalizing factor of \sqrt{ 3}

is \boxed{\green{\sqrt{3}  \:  \: or \:  \:  -  \sqrt{3}}}

5 0
3 years ago
Write an equation in point-slope form of the line through point J(4,1) with slope -4.
Nimfa-mama [501]
Point slope form
y - y1 = m(x - x1)

Plug in the given
slope = -4
Point ( 4, 1)

y - 1 = -4(x - 4)
y - 1 = -4x +16
add 1 to both sides
y = -4x + 17

Hope this helps!
4 0
3 years ago
Read 2 more answers
28. How much plain yogurt will you need to make 2 1/2 dozen cookies? Show your work.
xxMikexx [17]

Answer:

\frac{5}{6} cups

Step-by-step explanation:

Normally, when working with mixed numbers, I would prefer to turn them into improper fractions first before evaluating.

1 \frac{1}{2} cookies --- \frac{1}{2} cup plain yogurt

\frac{3}{2} cookies --- \frac{1}{2} cup plain yogurt

2\frac{1}{2} cookies --- ? cup plain yogurt

\frac{5}{2} cookies --- \frac{5}{3} × \frac{1}{2} cup plain yogurt = \frac{5}{6} cups plain yogurt

5 0
2 years ago
A chess player played 112 games.If he won40 what is the ratio of lost games to won games?
ycow [4]
If he won 40, then he lost 112-40 or 72 games. 
Ratio= lost/win
Ratio=72/40
72/40

Hope this helps :)
8 0
3 years ago
Other questions:
  • At a recent baseball game, anyone under the age of 12 was given one free hotdog. Travis had to pay for the hotdog that he ate. H
    10·2 answers
  • A car costs £15000. Work out the price after a 13% discount. PLEASE HELP ASAP...
    6·1 answer
  • a factory made about 75000 robots actual number made was rounded to the nearest thousand what is the is the greatest number the
    13·1 answer
  • Multiply 3x8y9.2x5y8
    6·1 answer
  • This is a 2 part question.
    11·2 answers
  • If John has 10 doughnuts and he gives 5 to Sammy how many does John have left of doughnuts
    14·1 answer
  • Theorem 8.18 and the Pythagorean Theorem to find the side lengths of the kite . Write the lengths in simplest radical form and a
    10·1 answer
  • Y = 4x + 3 y = -x - 2 solving system by graphing​
    5·1 answer
  • Which expression is equivalent to -30 - (8)
    6·1 answer
  • I need help fast plz
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!