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3 years ago

13. Write a function with a zero of 1/2. Explain how you know.

1 answer:

5 0

Answer: The zero of a function is any replacement for the variable that will produce an answer of zero. Graphically, the real zero of a function is where the graph of the function crosses the x‐axis; that is, the real zero of a function is the x‐intercept(s) of the graph of the function.

Step-by-step explanation:

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PLZ HELP ASAP PLZZZ An online store sells each video game for x dollars. Which situation can be represented by this inequality?

ehidna [41]

Answer:

the answer is The cost of 7 games is greater than the cost of 5 games plus a $3 digital book

Step-by-step explanation:

becuse 7>5+3 means 7 is greater

5 0

3 years ago

If the input, x, is 16, which equation results when output of 4?

Bad White [126]

Answer:

d) y = x-12

Step-by-step explanation:

x is the input

y is the output

d) 4 = 16 - 12

7 0

3 years ago

3X squared plus 2X equals -4 number of solutions

PIT_PIT [208]

Answer:

The given equation has two solutions i.e $\frac{-1+\sqrt{13} }{3}$ , $\frac{-1-\sqrt{13} }{3}$

Step-by-step explanation:

The given expression as :

3 x² + 2 x - 4

For the quadratic equation in the form of a x² + b x + c , the value of x

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

Or, x = $\frac{-2\pm \sqrt{2^{2}-4\times 3\times (-4)}}{2\times 3}$

Or, x = $\frac{-2\pm \sqrt{4 + 48}}{6}$

or, x = $\frac{-2\pm \sqrt{52}}{6}$

∴ x = $\frac{-1\pm \sqrt{13}}{3}$

Or, x = $\frac{-1+\sqrt{13} }{3}$ , $\frac{-1-\sqrt{13} }{3}$

Hence The given equation has two solutions i.e $\frac{-1+\sqrt{13} }{3}$ , $\frac{-1-\sqrt{13} }{3}$ Answer

7 0

3 years ago

37/16 rounded by the nearest hundredth.

gayaneshka [121]

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6 0

3 years ago

Read 2 more answers

If the cost price of 21 articles is equal to the selling price of 18 articles, find the profit percentage

Ksenya-84 [330]

Answer: 14.29%

Step-by-step explanation:

Let C be the cost of 1 article and S the selling price for 1 article. The profit, P, for 1 article would be:

P = S - C

For n articles, the total profit would be

nP = nS - nC

Profit percentage would be (P/S)*100%

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

We know that 21C = 18S: This can be written as C = (18/21)S

P = S - C

P = S - (18/21)S

P = (3/21)S or P=(1/7)S

Profit percentage would therefore be

(P/S)*100%

((1/7)S/S)*100%

(1/7)*100%

= 14.29%

5 0

3 years ago