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3 years ago

How to do the reflection: y= -2

Mathematics

1 answer:

Orlov [11]3 years ago

4 0

1. Measure from the point to the mirror line (must hit the mirror line at a right angle).
2.Measure the same distance again on the other side and place a dot.
3.Then connect the new dots up!

Hope this helped! :)))

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A company has two large computers. The slower computer can send all the company's email in 60 minutes. The faster computer can c

Lelu [443]

Answer:

If both computers are working together, it will take 24 minutes to do the job

Step-by-step explanation:

It is given that,

There are two computers.The slower computer can send all the company's email in 60 minutes.

The faster computer can complete the same job in 40 minutes

To find the LCM of 40 and 60

LCM (40, 60) = 120

To find efficiency of 2 computers

Let x be the efficiency of faster computer and y be the efficiency of faster computer

x = 120/40 = 3

y = 120/60 = 2

then, x + y = 3 + 2 = 5

Therefore efficiency of both the computer work together = x + y =5

To find the time taken to work both the computer together

time = 120/5 = 24 minutes

4 0

3 years ago

What is the answer to this? will give brainliest if correct

harkovskaia [24]

Answer:

$y - intercept = 0, -45$

$x-intercept$ $= - 10, 0$

Step-by-step explanation:

X and Y intercepts are when the line is crossed on the two lines given in a graph.

Let us find y- intercept,

We see how on y, there is no x but y is on -45

x intercept,

We see how on x, there is no y but x is on -10

4 0

3 years ago

Find all solutions of the equation sec 4 x − 2 = 0

Anuta_ua [19.1K]

Let's solve your equation step-by-step.
4x−2=0
Step 1: Add 2 to both sides.
4x−2+2=0+2
4x=2
Step 2: Divide both sides by 4.
4x
4
=
2
4
x=
1
2

Answer:
x=
1
2
hope it helps

7 0

3 years ago

Which of the following graphs shows the solution to the system of equations y=5x-1 and y= x+3

lubasha [3.4K]

Where are the graphs?

6 0

3 years ago

Solve the equation 3x+x²=-7. Does the number of solutions match the information provided by the discriminant? Explain

MA_775_DIABLO [31]

Answer:

$-\frac{3}{2}+\frac{\sqrt{19}i}{2}$ and $-\frac{3}{2}-\frac{\sqrt{19}i}{2}$

Step-by-step explanation:

$3x+x^2=-7\\\Rightarrow x^2+3x+7=0$

Discriminant

$D=b^2-4ac\\\Rightarrow D=3^2-4\times 7\times 1\\\Rightarrow D=-19$

If the discriminant is a negative number then the roots of the equation are imaginary

$x=\frac{-b\pm \sqrtD}{2a}\\\Rightarrow x=\frac{-3\pm \sqrt{-19}}{2\times 1}\\\Rightarrow x=-\frac{3}{2}\pm \frac{\sqrt{19}i}{2}\\\Rightarrow x=-\frac{3}{2}+\frac{\sqrt{19}i}{2}, x=-\frac{3}{2}-\frac{\sqrt{19}i}{2}$

So, the two solutions are $-\frac{3}{2}+\frac{\sqrt{19}i}{2}$ and $-\frac{3}{2}-\frac{\sqrt{19}i}{2}$

3 0

3 years ago