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3 years ago

WHOEVER ANSWERS FIRST GETS BRAINLIEST!!!!

Mathematics

1 answer:

Ratling [72]3 years ago

6 0

Answer:

A, C and E are true.

Step-by-step explanation:

The domain is a set of natural numbers.

The recursive formula is correct:

When x = 1, f(x) = 4 and f(x + 1) = f(2) = 3/2 f(x) = 3/2 * 4 = 6.

It is also true for the other points on the graph.

D is incorrect.

E is correct exponential growth with the formula 4(3/2)^(x-1).

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What are the domain and range of this function

belka [17]

$f(x)=\sqrt{x-7}+9\\\\\text{the domain:}\\x-7\geq0\to x\geq7\\\\\text{the range:}\\\sqrt{x-7}\geq0\ \text{therefore}\ \sqrt{x-7}+9\geq9\\\\y\geq9$

$Answer:\\domain:\ x\geq7\\range:\ y\geq9$

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3 years ago

James earned a total of $18 by selling 9 cups of lemonade. How many cups of lemonade does James need to sell in all to earn $26

Bezzdna [24]

Answer:

James needs to sell 13 cups of lemonade

Step-by-step explanation:

divide 18 and 9, you get 2. then, divide 26 and 2, and you get 13.

hope this helps, good luck!

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2 years ago

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Evgesh-ka [11]

The answer is the second one.
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3 years ago

1 .Which of these is an equation?

zheka24 [161]

Answer:

1.B 2.B and C

Step-by-step explanation:

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2 years ago

Multiply

Nataliya [291]

Answer:

$\large\boxed{(3x-7)(3x-5)=9x^2-36x+35}$

Step-by-step explanation:

$\text{Use FOIL:}\ (a+b)(c+d)=ac+ad+bc+bd\\\\(3x-7)(3x-5)\\\\=(3x)(3x)+(3x)(-5)+(-7)(3x)+(-7)(-5)\\\\=9x^2-15x-21x+35\qquad\text{combine like terms}\\\\=9x^2+(-15x-21x)+35\\\\=9x^2-36x+35$

5 0

3 years ago