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meriva
3 years ago
11

Please help me Ill give branliest

Mathematics
2 answers:
raketka [301]3 years ago
5 0
The answer is the first one and the third one I am sure of it!

Sonbull [250]3 years ago
5 0
So, let's go over the reflection first. You obviously know what a reflection is right? So reflection over the y-axis means the rectangle is reflecting (or is flipped) across the line that goes from top to bottom (the <em>y</em>-axis). The first statement is true.
The third statement is also true because "translated" means scooted or traveled. So the rectangle on the left scooted three units to the right (which made the blue rectangle.)
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A board is 87 cm in length and must be cut so that one piece is 21 cm longer than the other piece. Find the length of each piece
polet [3.4K]

Thank you for answer Yey can I answer in my subject

8 0
3 years ago
I don't get it <br>i need help!!
9966 [12]
"help..." said the high schooler.
"No," said Life, "figure it out yourself."
Then the rejected high schooler went to watch YouTube to relieve stress, hour and hours passed by until the high schooler realized he was wasting time.
"Oh no!" He said, "I have wasted time again! How will I ever get pass high school?"
"We will help you," said the flash cards, colored pens, and highlighters "we will be your best friend."
After that day, the high schooler never had an all nighter for the rest of high school. (College is a different story)

Moral of the story: Life and cute cat videos will not help you and your homework. Paying attention in class, making flash cards, making your notes colorful with pens and highlighter are what really helps :) 

Oh and asking your teacher for help is great too.

(You forgot to attach a picture to your question)
8 0
3 years ago
Use the discriminant to describe the roots of each equation. Then select the best description.
Misha Larkins [42]

Answer:

see explanation

Step-by-step explanation:

Given a quadratic equation in standard form

ax² + bx + c = 0 : a ≠ 0, then

The nature of it's roots can be determined by the discriminant

Δ = b² - 4ac

• If b² - 4ac > 0 then roots are real and distinct

• If b² - 4ac = 0 then roots are real and equal

• If b² - 4ac < 0 then roots are not real

For x² - 4x + 4 = 0 ← in standard form

with a = 1, b = - 4, c = 4, then

b² - 4ac = (- 4)² - (4 × 1 × 4) = 16 - 16 = 0

Hence roots are real and equal

This can be shown by solving the equation

x² - 4x + 4 = 0

(x - 2)² = 0

(x - 2)(x - 2) = 0, hence

x - 2 = 0 or x - 2 = 0

x = 2 or x = 2 ← roots are real and equal

8 0
3 years ago
Let f(x)=2x+2. Solve f^-1(x) when x=4
Gre4nikov [31]
F⁻¹(x) stands for the invers of function f(x). The inverse of f(x) is equal to x. We need to solve for x.

solve for x
f(x) = 2x + 2
2x + 2 = f(x)
2x = f(x) - 2
  x = \dfrac{f(x)-2}{2}
f⁻¹(x) = \dfrac{x-2}{2}

Determine the value of f⁻¹(x) when x = 4
f⁻¹(x) = \dfrac{x-2}{2}
f⁻¹(4) = \dfrac{4-2}{2}
f⁻¹(4) = \dfrac{2}{2}
f⁻¹(4) = 1
When x = 4, the value of f⁻¹(x) is equal to 1
4 0
3 years ago
Sales tax is 6% and you spend $42. How much money will you spend on tax?
zimovet [89]

Answer:

2.52

Step-by-step explanation:

8 0
4 years ago
Read 2 more answers
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