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3 years ago

Which graph shows the system x^2+y=2 x^2+y^2=9

Mathematics

2 answers:

Fofino [41]3 years ago

5 0

Answer:

The answer is A

Step-by-step explanation:

Katyanochek1 [597]3 years ago

5 0

Answer:

Graph A

Step-by-step explanation:

for edge

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Ally babysat nine times. She earned $15, $20, $10, $12, $20, $16, $80, and $18. Find the mean number of dollars that Ally earned

eduard

Answer:

The mean is 21.62 which is approximately 22

Step-by-step explanation:

mean= 15+20+10+12+20+16+80+18/8=21.62 because

mean= sum of all numbers/numbers mentioned

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3 years ago

Given: BC ≅ CD and AC bisects ∠BCD

DanielleElmas [232]

Go download Conects. You gonna love it.

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3 years ago

What is the inverse of this function? (Function in photo)

valkas [14]

Given:

The function is

$f(x)=-\dfrac{1}{2}\sqrt{x+3},x\geq -3$

To find:

The inverse of the given function.

Solution:

We have,

$f(x)=-\dfrac{1}{2}\sqrt{x+3}$

Put f(x)=y.

$y=-\dfrac{1}{2}\sqrt{x+3}$

Interchange x and y.

$x=-\dfrac{1}{2}\sqrt{y+3}$

Isolate the variable y.

$-2x=\sqrt{y+3}$

$(-2x)^2=y+3$

$4x^2-3=y$

$y=4x^2-3$

Putting $y=f^{-1}(x)$ , we get

$f^{-1}(x)=4x^2-3$

For $x\geq -3$ ,

$x+3\geq 0$

$\sqrt{x+3}\geq 0$

$-\dfrac{1}{2}\sqrt{x+3}\leq 0$

$f(x)\leq 0$

It means for function $f(x)\leq 0$ and for inverse function $x\leq 0$ because the range of the function is the domain of inverse function.

Therefore, $f^{-1}(x)=4x^2-3$ for $x\leq 0$ .

3 0

3 years ago

Round the number to hundredths 45.65747

Luda [366]

Answer:

45.66

Step-by-step explanation:

Step 1: Round to the Hundredths place

45.65747

Since the thousands place is above 5, we round up the hundredths place.

45.65747

45.66

Answer: 45.66

5 0

3 years ago

Read 2 more answers

What is the volume of the following cylinder?

inn [45]

Answer:

d) 87.92

Step-by-step explanation:

V = A(base)* height= πr² * h= 3.14*2²*7=87.92

5 0

3 years ago