3 years ago

Y = {(2, 6), (3, 1, 4), (1), (5, 6)} Is y a function and why?

Mathematics

1 answer:

Vanyuwa [196]3 years ago

6 0

Yes, the x value is not repeating

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alexdok [17]

Answer:

$\sf 5x+6y=12$

Step-by-step explanation:

$\sf y=-\dfrac{5x}{6}+2$

Multiply both sides by 6:

$\implies \sf 6 \cdot y=6(-\dfrac{5x}{6}+2)$

Expand:

$\implies \sf 6y=-5x+12$

Add 5x to both sides:

$\implies \sf 5x+6y=-5x+12+5x$

$\implies \sf 5x+6y=12$

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2 years ago

Which number is NOT written in scientific notation?

Thepotemich [5.8K]

The last one is not scientific notation because the 25.67 is greater than 10

5 0

3 years ago

(a) <br> 127.5<br> is what percent of <br> 51<br> ?

ExtremeBDS [4]

To solve this, you need to divide 127.5 by 51:
127.5/51 = 2.5
To find the percent, multiply 2.5 by 100:
2.5 x 100% = 250%
So 127.5 is 250% of 51

8 0

4 years ago

Victoria is making tofu burgers for a party burgers for a party. Each tofu burger requires 1/3 pound of tofu. She wants to make

kap26 [50]

9514 1404 393

Answer:

5 containers
1/3 pound left over

Step-by-step explanation:

The amount Victoria needs is ...

(1/3 lb/burger) × 14 burgers = (1/3)(14) lb = 4 2/3 lb

The next higher multiple of 1 lb is 5 lb.

Victoria needs to buy 5 containers of tofu. There will be 1/3 lb left over.

3 0

4 years ago

Need help in this mathquestion. The function h(x)=(x+2)^2 can be expressed in the form f(g(x)) where f(x)=x^2 , and g(x) is defi

blsea [12.9K]

Answer:

In a nutshell, $g(x) = x+2$ .

Step-by-step explanation:

A composition is operation between function that consist in replacing the independent variable of the first function, $f(x)$ in this case, for $g(x)$ . Common notations for composition between functions are $f(g(x))$ and $f\circ g (x)$ . If we know that $h(x) = f\circ g (x) = (x+2)^{2}$ and $f(x) = x^{2}$ , then $g(x) = x+2$ .

In a nutshell, $g(x) = x+2$ .

4 0

3 years ago