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Anna11 [10]
3 years ago
9

I'm really getting tired of the questions like these lol

Mathematics
1 answer:
Andre45 [30]3 years ago
4 0

Step-by-step explanation:

(3x+3)(x+2)=

3x^2+6x+3x+6

=3x^2+9x+6

we get quadratic equation

find discriminant:

D=b^2-4ac=81-72=9

x=(-b±√D)/2a

x1=-6/6=-1

x2=-12/6=-2

one of the x values should be correct.

but why when I try to put values I get zero

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If the mean of a positively skewed distribution is 126, which of these values could be the median of the distribution?
guapka [62]

Answer:

122 is the right answer not 130

Step-by-step explanation:

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Which equations are true equations? Select all correct answers. Responses 15052=30−42−12 150 over 5 squared equals 30 minus 4 sq
Helen [10]

All the correct answers of the equations using order of operations are;

B. 8⋅7 ÷ 2 − 12 = 22 − 2⋅3

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<h3>How to use order of operations?</h3>

The rule used for order of operations is PEMDAS and it states that the order of operation starts with the calculation enclosed in brackets or the parentheses first. Exponents (degrees or square roots) are then operated on, followed by multiplication and division operations, and then addition and subtraction.

Using the PEMDAS rule, the solutions would be as follows:

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32 = 4

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B. 8⋅7 ÷ 2 − 12 = 22 − 2⋅3

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C. 48 ÷ 8 + 2³ = 5 + 3²

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Read more about Order of operations at; brainly.com/question/550188

#SPJ1

Complete question is;

Which equations are true equations? Select all correct answers.

A. 9² − 7² = 20 ÷ (7 − 2)

B. 8⋅7 ÷ 2 − 12 = 22 − 2⋅3

C. 48 ÷ 8 + 2³ = 5 + 3²

D. 150 ÷ 5² = 30 − 4² − 12

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1 year ago
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The reflected coordinates are (7,4) You can find this out by imagining a point on the left upper  side in quadrant 2. Then, when you flip it to quadrant 1, both coordinates are positive!

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16 x^{2}
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