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2 years ago

How many degrees would you need to rotate a figure for the image to coincide with the preimage

Mathematics

1 answer:

trasher [3.6K]2 years ago

8 0

160 degrees or 180 degrees

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How many terms are there in 2x+8-7y3

Evgen [1.6K]

There are 3 terms in this expression. You can determine this answer by knowing that terms are either a single number or variable or numbers and variables multiplied together. Here's a picture example below:
Hope it helps! Mark as brainliest!

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2 years ago

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Will give brainliest for right answers please help

Scrat [10]

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2 years ago

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Percentage Pete blue and purple marbles 40 in all and 16 are purple

konstantin123 [22]

Answer:

24 then is about 48%

Step-by-step explanation:

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3 years ago

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Which are the solutions of x2 = –13x – 4? 0, 13 0, –13 StartFraction 13 minus StartRoot 153 EndRoot Over 2 EndFraction comma Sta

klasskru [66]

Solution of the given expression $x^2 = -13x-4$ is $x=\frac{-13+\sqrt{153}}{2}\,\,and\,\,x=\frac{-13-\sqrt{153}}{2}$

Correct options are: Start Fraction negative 13 minus Start Root 153 End Root Over 2 End Fraction comma Start Fraction negative 13 + Start Root 153 End Root

Step-by-step explanation:

We need to find solutions of $x^2 = -13x-4$

We need to solve the quadratic equation and find values of x.

Solving:

$x^2 = -13x-4$

Rearranging the terms:

$x^2+13x+4=0$

Solving the quadratic equation using quadratic formula:

$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

where a = 1, b= 13 and c=4

putting values:

$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\\x=\frac{-(13)\pm\sqrt{(13)^2-4(1)(4)}}{2(1)}\\x=\frac{-13\pm\sqrt{169-16}}{2}\\x=\frac{-13\pm\sqrt{153}}{2}\\x=\frac{-13+\sqrt{153}}{2}\,\,and\,\,x=\frac{-13-\sqrt{153}}{2}$

So, Solution of the given expression $x^2 = -13x-4$ is $x=\frac{-13+\sqrt{153}}{2}\,\,and\,\,x=\frac{-13-\sqrt{153}}{2}$

Correct options are: Start Fraction negative 13 minus Start Root 153 End Root Over 2 End Fraction comma Start Fraction negative 13 + Start Root 153 End Root

Keywords: Solving Quadratic Equations

Learn more about Solving Quadratic Equations at:

#learnwithBrainly

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2 years ago

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What is 1/4 as a percent?

Luden [163]

Answer: 25%

Step-by-step explanation:

We know that the whole are split into 4 pieces, that is why they are called fourths.

Vide the number 1 by 4 for 4 pieces.

1 vide by 4 = 25%

The answer is 25%

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2 years ago

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