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Snezhnost [94]
3 years ago
9

Can someone help me?It's urgent and thank you!

Mathematics
2 answers:
oee [108]3 years ago
6 0

y=\sqrt{x} -5

(the top option)

lidiya [134]3 years ago
4 0

Answer:

y = square root x2 - 5

Step-by-step explanation:

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If f(x) = –x3, g(x) = 3x2 – 1, and h(x) = 2x + 5, what is the degree of [f o g o h](x)?
yan [13]
I reckon the degree will be 6
4 0
3 years ago
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The square of 15 is 225. The square of what other number is 225?
Firlakuza [10]

Answer:

-15

Step-by-step explanation:

-15²

= -15×-15

= 225

hope it helps!!

7 0
3 years ago
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What is the square root of -1
MAXImum [283]

Answer:

i

Step-by-step explanation:

\sqrt{-1} is the same thing as i, which is an imaginary number.

Since you can't take the square root of negative numbers, we use i to do it.

5 0
3 years ago
What are the center and radius of the circle defined by the equation x^2 + y^2 -6x + 4y + 4=0
Sloan [31]

The equation of a circle:

(x-h)^2+(y-k)^2=r^2

(h, k) - a coordinates of the center

r - a radius

x^2+y^2-6x+4y+4=0\ \ \ |-4\\\\x^2-2\cdot x\cdot3+y^2+2\cdot y\cdot2=-4\ \ \ |+3^2\ |+2^2\\\\\underbrace{x^2-2\cdot x\cdot3+3^2}_{(a-b)^2=a^2-2ab+b^2}+\underbrace{y^2+2\cdot y\cdot2+2^2}_{(a+b)^2=a^2+2ab+b^2}=-4+3^2+2^2\\\\(x-3)^2+(y+2)^2=3^2

Answer:

the center: (3, -2)

the radius: 3

5 0
3 years ago
I fill an aquarium to a depth of 3/8 meters in 6 minutes. What is the unit rate in minutes per meter?
Elena L [17]

Answer:

16 minutes per meter

Step-by-step explanation:

Depth = 3/8 meters

Time taken = 6 minutes

What is the unit rate in minutes per meter?

Time taken per depth = minutes per meter

Unit rate in minutes per meter = 6 minutes ÷ 3/8 meters

= 6 minutes × 8/3 meters

= 48/3

= 16 minutes per meter

5 0
3 years ago
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