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MrRa [10]
3 years ago
10

Please help me it’s 8th grade math Trying to see if it has a solution or not

Mathematics
1 answer:
MrRissso [65]3 years ago
3 0

Answer:

No Solutions

[y = -x - 2, y = -x - 6]

One Solution

[y = 2x, y = -2x]

[y = -3, x = -6]

Infinitely Many Solutions

[y = 3x + 4, 2y = 6x + 8]

Step-by-step explanation:

When the lines have the same slope (m) but different y-intercept (b), the lines are parallel and never intersect, thus we have no solutions.

When the lines have different slopes (m), the lines would intersect at one point so we have one solution.

When the lines have the same slope (m) and same y-intercept (b), the equations both represent the same linear line, so we have infinitely many solutions.

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Which numbers are rational And which are irrational
Fittoniya [83]

Answer:

Irrational, rational, rational, rational, irrational

Step-by-step explanation:

Pi is irrational, so anything multiplied by it is irrational also. The square root of 25 is just 5 or -5, both of which are rational. 17/12 is a fraction of integers so it's rational. 41.4141... is a repeating decimal so it is rational. And the square root of 7 is a random decimal, so it is irrational.

8 0
3 years ago
If p varies directly as q and q= 70 when p= 10, find q when p = 12
stellarik [79]

\qquad \qquad \textit{direct proportional variation} \\\\ \textit{\underline{y} varies directly with \underline{x}}\qquad \qquad \stackrel{\textit{constant of variation}}{y=\stackrel{\downarrow }{k}x~\hfill } \\\\ \textit{\underline{x} varies directly with }\underline{z^5}\qquad \qquad \stackrel{\textit{constant of variation}}{x=\stackrel{\downarrow }{k}z^5~\hfill } \\\\[-0.35em] ~\dotfill

\stackrel{\textit{"p" varies directly as "q"}}{p~~ = ~~kq}\qquad \textit{we also know that} \begin{cases} q=70\\ p=10 \end{cases}\implies 10=k70 \\\\\\ \cfrac{10}{70}=k\implies \cfrac{1}{7}=k\hspace{15em}\boxed{p=\cfrac{1}{7}k} \\\\\\ \textit{when p = 12, what is "q"?}\qquad 12=\cfrac{1}{7}q\implies 12=\cfrac{q}{7}\implies 84=q

5 0
1 year ago
Which professionals most directly use geometry in their work?
S_A_V [24]

Answer:

Astronomers.

Step-by-step explanation:

In many, many ways we can use geometry in astronomy. One of the most or important example is that when astronomers find the distance between the different celestial bodies and they also find the tilt of any planet they uses geometry .

And in this field other uses of geometry when planets orbiting around the sun or satellites orbiting around there planets astronomers uses geometry to find the speed and velocity of the planets.

6 0
3 years ago
A company has two manufacturing plants with daily production levels of 7 x plus 19 items and 2 x minus 7 ​items, respectively. T
leva [86]

First plant produces 5x+26 items more than second plant daily

Step-by-step explanation:

Given

The expression for plant A will be:

7x+19

For plant B:

2x-7

In order to find that how much more items are produced by first plant we have to subtract the daily production of second plant from first plant

So,

= 7x+19-(2x-7)\\= 7x+19-2x+7\\= 7x-2x+19+7\\=5x+26

So,

First plant produces 5x+26 items more than second plant daily

Keywords: Polynomials, expressions

Learn more about polynomials at:

  • brainly.com/question/729447
  • brainly.com/question/7287774

#LearnwithBrainly

5 0
3 years ago
Find the complement of 73°<br><br>​
Nimfa-mama [501]

Answer:

18°

Step-by-step explanation:

90-72= 18

The complement of 73 is the angle that when added to 73 forms a right angle which is 90° xd

5 0
3 years ago
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