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2 years ago

8

How do percents show the relationship between quantities?

1 answer:

Alik [6]2 years ago

6 0

Answer: Decide whether two quantities are in a proportional relationship, by testing for equivalent ratios in a table or graphing on a coordinate plane and observing whether the graph is a straight line through the origin . Use proportional relationships to solve multistep ratio and percent problems.

Step-by-step explanation:

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3 years ago

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Using the quadratic formula, what is the value of x for x^2-4+5=0

PSYCHO15rus [73]

value of x is: x= i and x= -i

Step-by-step explanation:

We need to find the value of x from $x^2-4+5=0$ using quadratic formula.

The term is: $x^2+1=0$

The quadratic formula is:

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

Where a = 1, b=0,c=1

Putting values:

$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\\x=\frac{0\pm\sqrt{(0)^2-4(1)(1)}}{2(1)}\\x=\frac{\pm\sqrt{-4}}{2}\\x=\frac{\pm2i}{2}\\x=\pm i$

So, value of x is: x= i and x= -i

Keywords: Quadratic formula

Learn more about quadratic formula at:

#learnwithBrainly

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3 years ago

6x4/8x7/9 what is the answer and have to solve it

telo118 [61]

Answer:

$6\cdot 4\div 8\cdot 7\div 9=$ 21/9

Step-by-step explanation:

Follow PEMDAS and Order of Operations

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2 years ago

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In an experiment, Mary will flip a coin 9 times. Will the relative frequency of her coin landing on heads be

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