jshdsajfhkfhdk jshdsajfhkfhdk
  • 01-04-2021
  • Mathematics
contestada

calculate
4x^2+6x-9 if x=3
3y+7(2y-5) if y=4

Respuesta :

mlkcloud
mlkcloud mlkcloud
  • 01-04-2021

Answer:

1. 45

2. 33

Explanation:

1. 4x² + 6x - 9

= 4(9) + 18 - 9

= 36 + 18 - 9

= 45

2. 3y + 7(2y - 5)

= 12 + 7(8 - 5)

= 12 + 56 - 35

= 33

i hope this helps! :D

Answer Link
25leeelisa
25leeelisa 25leeelisa
  • 01-04-2021

Answer:

45

33

Step-by-step explanation:

4(3)^2+6(3)-9= 36+18-9= 45

3(4)+7(2*4-5)= 12+7(8-5)= 12+7(3)= 33

Answer Link

Otras preguntas

how must a projectile be launched in order to maximize its range?
if the slope of a position versus time graph is downward what kind of motion produced the graph
What served as the basic building blocks of African society?1: feudal contracts2: lineage groups3: slaves4: camel caravans
Antonio sold a hat for $18. His wholesale cost was $8. What was the percent markup?
Is there DNA in our food? How do you know?
16.   The main reason self-confidence is important in human relations is because
What constitutional principle did the supreme court establish in the McCulloch case
If five slices of pizza cost $5.50, how much do two slices cost? Ten slices? Half a slice ?
how many atoms in C9H8O4
what are the effects of global warming