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Fiesta28 [93]
3 years ago
12

What are some solution(s) to the quadratic equation 40 - x^2 = 0

Mathematics
1 answer:
Serhud [2]3 years ago
3 0

Answer:

x = ± 2\sqrt{10}

Step-by-step explanation:

given

40 - x² = 0 ( add x² to both sides )

40 = x² or

x² = 40 ( take the square root of both sides )

x = ± \sqrt{40} = ± \sqrt{4(10)} = ± 2\sqrt{10}

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Andrei [34K]

Answer:

Fruit smoothie: $3.4

Protein bar: $2.5

Step-by-step explanation:

Let x represent cost of fruit smoothie and y represent cost of protein bar.

We have been given that Jake buys a fruit smoothie and a protein bar for​ $5.90. We can represent this information in an equation as:

x+y=5.90...(1)

x=5.90-y...(1)

We are also told that Kobe buys 2 fruit smoothies and 4 protein bars. He pays​ $16.80. We can represent this information in an equation as:

2x+4y=16.80...(2)

Upon substituting equation (1) in equation (2), we will get:

2(5.90-y)+4y=16.80

11.80-2y+4y=16.80

2y=16.80-11.80

2y=5

y=\frac{5}{2}=2.5

Therefore, each protein bar costs $2.5.

Upon substituting y=2.5 in equation (1), we will get:

x=5.90-2.5=3.4

Therefore, each fruit smoothie costs $3.4.

8 0
4 years ago
Without using a calculator find the answers to the following. <br> (5+2) x 6-6
Klio2033 [76]
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3 years ago
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Answer:

g = -18.3

Step-by-step explanation:

3g-10=-45

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Step-by-step explanation:

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Answer:

-2

Step-by-step explanation:

Slope intercept form is

y = mx + b

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----------------------------

y = -2x + 5

is in slope intercept form

the slope, m = -2

The slope of the parallel ine will be the same

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