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Stells [14]
3 years ago
12

Which represents the solution(s) of the graphed system of equations, y = x2 + x – 2 and y = 2x – 2? (–2, 0) and (0, 1) (0, –2) a

nd (1, 0) (–2, 0) and (1, 0) (0, –2) and (0, 1) Mark this and return
Mathematics
2 answers:
MA_775_DIABLO [31]3 years ago
5 0

Answer:

<h2>(0, -2) (1, 0)</h2>

Step-by-step explanation:

I got it right on the test... Have a great day :)

Luda [366]3 years ago
3 0

ANSWER

(0,-2), (1,0)

EXPLANATION

The first equation is

y =  {x}^{2}  + x - 2

The second equation is

y = 2x - 2

We equate both equations to get,

{x}^{2}  + x - 2 = 2x - 2

{x}^{2}  + x - 2x - 2 + 2 = 0

Simplify

{x}^{2}  - x = 0

Factor

x(x - 1) = 0

Either

x = 0

Or

x - 1 = 0

x = 1

Put x=0 or x=1 into the second equation to get,

y =   2(0) - 2 =  - 2

Or

y =   2(1) - 2 =  0

Therefore the solutions are;

(0,-2), (1,0)

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PLEASE HELP For a particular​ transformer, the voltage E in the circuits is related to the number of windings W of wire around t
Masja [62]

Answer:

A voltage of 760V will be produced by 19 windings.

Step-by-step explanation:

Given the equation:

E = 40W

Where E is the Voltage in the circuits

and W is the number of windings

<u>Given</u> that E = 760V

<u>To find:</u> W = ?

<u>Solution:</u> Here, we have the given equation in 2 variables where value of 1 variable is given so other can be easily calculated by putting the value of given variable in the equation.

So, Putting the value of E in the given formula and finding W, the number of windings:

760=40 \times W\\\Rightarrow W = \dfrac{760}{40}\\\Rightarrow W = \dfrac{76}{4}\\\Rightarrow W = 19

So, number of windings for a voltage E = 760V is 19.

A voltage of 760V will be produced by 19 windings.

5 0
3 years ago
This equation shows how the total number of pieces Lamar has learned depends on the number of weeks he has taken piano lessons.
Dominik [7]

Answer:

19 weeks

Step-by-step explanation:

Given equation:

P = w

Where,

w = the number of weeks he has taken piano lessons

p = the total number of pieces he has learned

how many weeks of piano lessons will Lamar need before he will be able to play a total of 19 pieces?

Find w when p = 19

P = w

p = 19

Since P = w

19 = w

Therefore,

w = 19

Lamar need 19 weeks before he will be able to play a total of 19 pieces

3 0
2 years ago
Dora took 10 hours to walk a 30 mile trail how long did it take her to walk 9 miles going the same speed?
Brrunno [24]
3 hours
3 \times 10 = 30 \: so \: it \: is \: 3 \:  mph \: 3 \times 3 = 9
6 0
3 years ago
Name the relationship <br> A.complementary <br> B.linear pair<br> C.vertical<br> D.adjacent
Tom [10]

Answer:

∠a and ∠b are the adjacent angles.

Therefore, option D i.e. adjacent is the correct option.

Step-by-step explanation:

Given the angles

  • ∠a
  • ∠b

We know that the two angles are termed as the adjacent angles when they share the:

  • common vertex
  • common side

From the given diagram, we are given the angles ∠a and ∠b.

It is clear that angles ∠a and ∠b have a common vertex and common side.

Therefore, the relationship between the angles ∠a and ∠b is 'adjacent'.

In other words, ∠a and ∠b are the adjacent angles.

<em />

<u><em>Please note that the given relation can not be a 'linear pair' because the sum of two angles is NOT a straight line or 180°.</em></u>

<u><em /></u>

Therefore, option D i.e. adjacent is the correct option.

4 0
3 years ago
There are 25 students in maggies science class. Her teacher will randomly choose 2 students to give their oral reports on monday
Drupady [299]

Answer:

She has a 4.16667% chance of having to go those days so my guess would be 4/25 (B)

Step-by-step explination

You add 2 and 4 and get 6. divide 25 by 6 then you get the answer I stated before and I rounded down.

8 0
3 years ago
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