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3 years ago

What is the radius of the circle who’s equation is x^2 + y^2 = 9

Mathematics

1 answer:

Svetllana [295]3 years ago

8 0

Answer:

r=3

Step-by-step explanation:

The equation of a circumference is $(x-a)^2+(y-b)^2=r^2$ .
Then , in this case $r^2=9$ , and then to know the value of r we just simply have to calculate the square root of 9, which is 3.

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Solve the formula for x. S=2πzx+7πz2

Lubov Fominskaja [6]

Answer:

Given:

S = 2πzx + 7πz²

Isolate x:

2πzx = S - 7πz²

Divide both sides by 2πz:

x = (S - 7πz²)/(2πz)

x = S/(2πz) - 3.5z

7 0

3 years ago

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How are the graphs of the functions f(x) = √16^x and g(x) =3√64^x related?

liberstina [14]

Answer:- The functions f(x) and g(x) are equivalent.

Explanation:-

Given functions:- $f(x)=\sqrt{16^x}$ and $g(x)=\sqrt[3]{64^x }$

Simplify the functions by using law of exponents

$(a^n)^m=a^{nm}$

Thus $f(x)=\sqrt{16^x}=\sqrt{(4^2)^x}=\sqrt{4^{2x}} =\sqrt{(4^x)^2}=4^x$

and $g(x)=\sqrt[3]{64^x}=\sqrt[3]{(4^3)^x}= \sqrt[3]{4^{3x}}= \sqrt[3]{(4^x)^3}=4^x$

⇒f(x)=g(x)

Therefore ,the functions f(x) and g(x) are equivalent.

7 0

3 years ago

Read 2 more answers

11 El prisma tiene 9 caras, 9 aristas y 6 vertices. (2 puntos) Cierto Falso 1

Levart [38]

Hi! I don’t know what any of this means but I hope you have an amazing day and I hope god/allah/etc. blesses you :)
sorry I couldn’t answer

4 0

3 years ago

Very confusing help i dont understand

jasenka [17]

Answer:

12.8 servings

Step-by-step explanation:

$1\frac{1}{4}$ cups of milk is used to make 10 servings of a recipe.

If $1\frac{1}{4}$ cups or $\frac{5}{4}$ cups of milk is used to to make 1 serving.

Then 1 cup of milk will be required to make servings = $\frac{1}{\frac{5}{4}}$

= $\frac{4}{5}$

Since, 1 gallon = 16 cups

Therefore, 16 cups of milk will be required for servings = $\frac{4}{5}\times 16$

= 12.8 servings

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3 years ago

Write the next three terms to the geometric sequence 6,-18,54

Sati [7]

The next 3 terms would be -162, 468, 1457

8 0

2 years ago