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3 years ago

Can someone explain the answer for me? I am seeming to not get it.

Mathematics

1 answer:

antoniya [11.8K]3 years ago

5 0

Answer:

(-4,1)

Step-by-step explanation:

1. Reflection in the y-axis- if we are only focusing on A then you have to make the x negative:

A (-4,1) A' (4,1)

2. Reflection in the x-axis- make the y negative in the point A:

A' (4,1) A'' (4,-1)

3. Rotate 180 degrees- (x,y) rotated 180 degrees is (-x,-y):

A" (4, -1) A'''(-4, 1)

side note: if 1 is already negative than two negatives make a positive, which is why -1 becomes 1 after the 180 degree rotation

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Find the error and explain why its wrong

UNO [17]

Answer:

The last part.

Step-by-step explanation:

The error is only at the last part. Basically the answer part.

The answer should be —

$13 \sqrt{5}$

We don't multiply the square roots when adding or subtracting. That'd contradict the rules.

Here, we let the square root of five as x-term.

$\sqrt{5} = x$

$4 \sqrt{5} + 9 \sqrt{5} = 4x + 9x$

As we add up, we would get 13x. Thrn we convert x-term back to square root of five.

The answer would be —

$13x \\ x = \sqrt{5} \\ 13 \sqrt{5}$

Remember that we don't multiply the square roots when adding or subtracting.

5 0

3 years ago

The 373 students who listed soccer as their favorite sport were 13 more than three times the number of students who listed baske

wariber [46]

373-13=360
360 divided by three equal to 120
So 120 children chose basketball

6 0

3 years ago

What is 10 over 64 in simplest form

kykrilka [37]

To write a fraction in simplest form, you have to divide the numerator and the denominator by their greatest common factor.

Factors of 10: 1, 2, 5, 10
Factors of 64: 1, 2, 4, 8, 16, 32, 64
Common Factors: 1, 2
Greatest Common Factor: 2

$\frac{10}{64} = \frac{10/2}{64/2} = \frac{5}{32}$

6 0

3 years ago

What does the symbol for factorial function (n!) mean?

Volgvan

Answer:

The answer is D

Hopes this helps

Step-by-step explanation:

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3 years ago

What is the answer to this equation?<br> 1/2 (4i+8)=-2

Flauer [41]

Answer:

If your looking for I the answer is -3

Step-by-step explanation:

Simplify both sides of the equation

1/2(4i+8)=-2 - Distribute

(1/2) (4i) + (1/2) (8) = -2

The subtract 4 from both sides

Then divide both sides by 2

5 0

3 years ago