What are the values of a, b, and c in the quadratic equation 0 = 5x - 4x²

Please help me with those question please help with out number 1

alina1380 [7]

Answer:

1) For each value of x, a value of y is increased by 5.

x = 0, y = 5

x = 1, y = 10

x = 2, y = 15

x = 3, y = 20

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2) For each two values of x, a value of y is increased by 10.

x = 0, y = -2

x = 2, y = 8

x = 4, y = 18

x = 6, y = 28

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3)

x = 0, y = 1

x = 1, y = $\frac{7}{5}$

x = 5, y = 3

x = 10, y = 5

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4)

x = 0, y = 2

x = 1, y = 17

x = 2, y = 32

x = 5, y = 77

Step-by-step explanation:

This is as easy as replacing x for the actual value show on the table.

1)

$y=5x+5$

When x = 0, y = ?

$y=5(0)+5\\y=0+5\\y=5$

When x = 1, y = ?

$y=5(1)+5\\y=5+5\\y=10$

When x = 2, y = ?

$y=5(2)+5\\y=10+5\\y=15$

When x = 3, y = ?

$y=5(3)+5\\y=15+5\\y=20$

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2)

$y=5x-2$

When x = 0, y = ?

$y=5(0)-2\\y=0-2\\y=-2$

When x = 2, y = ?

$y=5(2)-2\\y=10-2\\y=8$

When x = 4, y = ?

$y=5(4)-2\\y=20-2\\y=18$

When x = 6, y = ?

$y=5(6)-2\\y=30-2\\y=28$

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3)

$y=\frac{2}{5}x +1$

When x = 0, y = ?

$y=\frac{2}{5}(0) +1$

$y=0 +1\\y=1$

When x = 1, y = ?

$y=\frac{2}{5}(1) +1\\y=\frac{2}{5} +1$

$y=\frac{2}{5}+1(\frac{5}{5})\\ y=\frac{2}{5}+\frac{5}{5} \\y=\frac{7}{5}$

When x = 5, y = ?

$y=\frac{2}{5}(5) +1\\y=2+1\\y=3$

When x = 10, y = ?

$y=\frac{2}{5}(10) +1\\y=2(2) +1\\y=4+1\\y=5$

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4)

$y=15x+2$

When x = 0, y = ?

$y=15(0)+2\\y=0+2\\y=2$

When x = 1, y = ?

$y=15(1)+2\\y=15+2\\y=17$

When x = 2, y = ?

$y=15(2)+2\\y=30+2\\y=32$

When x = 5, y = ?

$y=15(5)+2\\y=75+2\\y=77$

4 0

3 years ago

Read 2 more answers

Simplify square root. BRAINLIEST! Help asap! (For the 2nd one, i accidentally clicked 9 so just act like there is no yellow)

Kazeer [188]

Answer:

$\sqrt{2}\cdot \sqrt{200}=20\\\sqrt{25}+\sqrt{4}=7$

Step-by-step explanation:

$200=2\times100=2\times10\times10\\200=2\times10^2\\\sqrt{200}=\sqrt{2\times10^2}=\sqrt{2}\times\sqrt{10^2} \\=10\sqrt{2} \\\\\sqrt{2}\cdot \sqrt{200}=(\sqrt{2})\cdot(10\sqrt{2})\\=10\cdot(\sqrt{2}\times\sqrt{2})\\=10\cdot2\\=20$

$25=5\times5=5^2\\\sqrt{25}=\sqrt{5^2}=5\\4=2\times2=2^2\\\sqrt{4}=\sqrt{2^2}=2\\\sqrt{25}+\sqrt{4}=5+2=7$

3 0

3 years ago

Mr. Drew wants to build a square sandbox with an area of 361 square feet. What is the total length of the wood Mr. Drew needs ma

Zepler [3.9K]

Answer:

The Sandbox must be 19x19 for the area to be 361.

Step-by-step explanation:

(19x19=361)

8 0

4 years ago

What is the selling price of an item if the original cost is $784.50 and the markup on the item is 6.5 percent?

JulijaS [17]

Answer:

Solution:

Given, cost price = $784.50

Profit = 6.5% of cost price

= 6.5/100 × $784.50

= $50.9925 [since, profit% is always on C.P.]

And selling price = cost price + profit

= $784.50 + $50.9925

= $835.4925

Hence, selling price = $835.4925

5 0

2 years ago

Read 2 more answers

In a game, the probability that a spinner will land on a 2 is 1/3. How many times would you expect to land on a 2 if you spin th

defon

Answer:

2 times

Step-by-step explanation:

The probability of 1/3 means that the spinner will land on a 2, 1/3 of the time:

We can predict how many times it will land on a 2 by finding 1/3 of 6:

6/3

= 2

So, the spinner will land on a 2, two times

7 0

3 years ago

What are the values of a, b, and c in the quadratic equation 0 = 5x - 4x² - 2?