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aleksklad [387]
3 years ago
15

F(n)=2n+5 g(n)=n²-1 Find f(-3) ⋅ g(-3)

Mathematics
1 answer:
kirill115 [55]3 years ago
8 0

Answer:

use symbolab

Step-by-step explanation:

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Paraphin [41]

Answer:

0.2

Step-by-step explanation:

Or 2/10. is that right?

5 0
3 years ago
The solution of the equation 7x+2=23 is ?
ikadub [295]
7x+2=23
Move 2 to the other side
7x=23-2
7x=21 

To isolate the x divide both sides by 7
x=3 

To check plug the value of x back in 

7(3)+2=23
21+2=23
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3 0
3 years ago
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Find a cubic function with the given zeros. (1 point) Square root of seven. , - Square root of seven. , -4
Debora [2.8K]

Given :

Three roots , \sqrt{7},\ -\sqrt{7},\ -4 .

To Find :

A cubic function with the given zeros.

Solution :

Equation of polynomial of 3 zeroes is given by :

(x-a_1)(x-a_2)(x-a_3)=0\\\\(x-\sqrt{7})(x+\sqrt{7})(x+4)=0\\\\( x^2-7)(x+4)=0\\\\x^3+4x^2-7x-28=0

Therefore, the cubic function of given zeroes is x^3+4x^2-7x-28=0.

Hence, this is the required solution.

6 0
4 years ago
Find the diameter of the circle with the given circumference.use 3.14 for pi<br><br> C=23 cm
zvonat [6]

Answer:

7.324840764

Step-by-step explanation:

23/3.14=7.324840764

7 0
3 years ago
What is the value of x?<br> -2x = 8
STatiana [176]
This is a simply problem. Just divide both sides the coefficient of x. Which is -2.

And the answer will be x = -4
6 0
3 years ago
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