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3 years ago

The. Ordered pair? Is this a function yes or no?

Mathematics

1 answer:

White raven [17]3 years ago

4 0

Yes. It is a function I don’t know why but I know it is

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It is given that y is inversely proportional to the square of x and that y=48 when x=<img src="https://tex.z-dn.net/?f=%5Cfrac%7

Anna [14]

Answer:

$a. y = 12\times \frac{1}{x^2} \\b. x = 2 , when \ y =3$

Step-by-step explanation:

$y \ is\ inversely \ proportional \ to \ square \ of \ x \ means , y \ \alpha \ \frac{1}{x^2}$

$Therefore, y = k \times \frac{1}{x^2}$

Given y = 48, x = 1/2. We will find k.

$y = k \times \frac{1}{x^2}\\\\48 = k \times \frac{1}{\frac{1}{4}}}\\\\k = 48 \times \frac{1}{4} =12$

Find x.

$y = k \times \frac{1}{x^2} \\\\3 = 12 \times \frac{1}{x^2}\\\\\frac{3}{12} = \frac{1}{x^2}\\\\x^2 = \frac{12}{3}\\\\x^2 = 4 \\\\x = 2$

5 0

3 years ago

What is the value of y so that the ordered pair (2, y) is a solution to the equation 2x+y=-2?

mezya [45]

X=2
y=-2-2x=-2-4=-6
so you choose a

3 0

3 years ago

PLEASE HELP ASAP!!! I NEED CORRECT ANSWERS ONLY PLEASE!!!

Alenkinab [10]

Answer:

$m\angle R=69.4^o$

Step-by-step explanation:

we know that

In the right triangle PQR

$tan(R)=\frac{PQ}{QR}$ ----> by TOA (opposite side divided by adjacent side)

substitute the given values

$tan(R)=\frac{8}{3}$

using a calculator

$m\angle R=tan^{-1}(\frac{8}{3})=69.4^o$

7 0

3 years ago

What is the slope?

valkas [14]

Answer:

1 1/2 I think either that are the other way around

8 0

3 years ago

Logan is making bookmarks that contain flower petals. He has 95 petals. He uses 3 flower petals for each bookmark. What is the G

Tcecarenko [31]

Answer: The GREATEST number of bookmarks that Logan can make = 31.

Step-by-step explanation:

GIven: Total petals = 95

Number of petals required for each bookmark = 3

Number the number of bookmarks can be prepared from 95 petals = 95 ÷ (Petals required of each bookmark)

= 95÷3

$=31\dfrac{2}{3}\ \ \ \approx31\text{ [Round to the nearest whole number.]}$

i.e. The GREATEST number of bookmarks that Logan can make = 31.

5 0

3 years ago