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

What type of energy conversion results when friction slows down a ball rolling across the floor
Trees fall into two categories, divided by the shapes of their leaves. The group of needle-leaf trees include cedars, pines, hemlocks, firs, and spruces. Thes
(2.0*10^4)(3.0*10^3) A. 6.0 * 10^7 B. 6.0 * 10^12 C. 6.0 * 10^5 D. 6.0 * 10^43
A bowl of M&M’s, Italian dressing, and blueberries muffins are all examples of...
Hi I need help with this question it says An auditorium has 25 rows with 45 seats in each row. How many seats are there in all.
Practice:Severe weather answers
WILL MARK BEST AND CORRECT ANSWER AS BRAINLIEST Hoarse, booming drums of the regiment, Little souls who thirst for fight, These men were born to drill and die.
What is the pattern 1,1,2,6,24,120
Sam wants to be named the greatest home run hitter of his baseball league. In the past 5 seasons he has hit 24 , 20, 23, 20, and 21 home runs, respectively. To
3xy z +2xy-2yz-xz+5x, for x=4, y=6, z=8