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Olegator [25]
3 years ago
6

Evaluate 3xy with an exponent of 2 y, if x=2 and y=5

Mathematics
1 answer:
Bogdan [553]3 years ago
8 0

Answer:

145

Step-by-step explanation:

x = 2 , y= 5

Putting the values of x and y in the expression

=3(2) (5)^2-5

=3(2)(25)-5

=150 -5

=145

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Find the zeroes of the polynomial function f(x)=x^4-5x^3+11x^2-25x+30.
katen-ka-za [31]

Step-by-step explanation:

x⁴ − 5x³ + 11x² − 25x + 30

x⁴ − 5x³ + 6x² + 5x² − 25x + 30

x² (x² − 5x + 6) + 5 (x² − 5x + 6)

(x² + 5) (x² − 5x + 6)

(x² + 5) (x − 2) (x −3)

The zeros are 2, 3, and ±√5i.

7 0
3 years ago
Which of the following expressions represents the statement below?
exis [7]

Option D. 2(n + 9) is the right answer

Step-by-step explanation:

The word problems are converted into mathematical problems to solve simply.

for the given problem

"two times the sum of a number and 9"

Let n be a number then

when there is and between two things they are performed first then next operation is performed so

the sum of a number and 9

n+9

Then

two times the sum of a number and 9

2(n+9)

Hence,

Option D. 2(n + 9) is the right answer

Keywords: Mathematical notation

Learn more about mathematical notation at:

  • brainly.com/question/10364988
  • brainly.com/question/10435816

#LearnwithBrainly

5 0
3 years ago
You are paid $9.25/hr at your part-time job. You work 12 hours per week. You are considering working a part-time job for $5.90/h
Sergio039 [100]
It will be over 1 dollar  because of the plus
8 0
3 years ago
Read 2 more answers
What is the point of symmetry for the circle (x + 2)2 + (y â 4)2 = 25?
irina [24]
It's its center:

(-2, 4)

Can't read y-4 or y+4, change the sign.

y-4 ---> SOLUTION: (-2,4)

y+4 ---> SOLUTION: (-2, -4)
3 0
2 years ago
HELP ME AS FAST AS POSSIBLE! 95 POINTS!!!
Likurg_2 [28]

Answer:

B

Step-by-step explanation:

4 (x - 7) - 2 (x + 1) = 10

x = 10

B. -2 (x - 7) + (x + 1) = 5

x = 10

your equation is equivalent to B!

7 0
2 years ago
Read 2 more answers
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