mathqiz21
mathqiz21 mathqiz21
  • 03-11-2019
  • Mathematics
contestada

what’s the answer when x=3 and y=5 ?

whats the answer when x3 and y5 class=

Respuesta :

nfmt
nfmt nfmt
  • 03-11-2019

the answer is 88

x^2 +2 (x+y)

3^2+2(3+5)

3^2+2(8)

9+2(8)

11 (8)

88

Answer Link
jimrgrant1 jimrgrant1
  • 03-11-2019

Answer:

25

Step-by-step explanation:

Given

x² +2(x + y) ← substitute x = 3 and y = 5 into the expression

= 3² + 2(3 + 5)

= 9 + (2 × 8)

= 9 + 16

= 25

Answer Link

Otras preguntas

What is 37/5 as a mixed number
Which sentence has no errors in the use of quotation marks or italics? A. Did you see the article The Ten Best Books of Summer in yesterday's Miami Herald? B. I
how do you solve 130 cm plus 50 mm
Which two elements have the most similar chemical properties? (1) Be and Mg (3) Cl and Ar (2) Ca and Br (4) Na and P
How many milliliters of 0.100 M NaOH(aq) would be needed to completely neutralize 50.0 milliliters of 0.300 M HCl(aq)? (1) 16.7 mL (3) 150. mL (2) 50.0 mL (4) 3
Which substance can be decomposed by chemical means? (1) tungsten (3) krypton (2) antimony (4) methane
Which type of bonding is found in all molecular substances? (1) covalent bonding (3) ionic bonding (2) hydrogen bonding (4) metallic bonding
Solve (7x + 2)2 = 64
3x + y = 19 , and x + 3y = 1. Find the value of 2x + 2y a. 20 b. 18 c. 11 d. 10 e. 5
Which change is exothermic? (1) freezing of water(2) melting of iron(3) vaporization of ethanol(4) sublimation of iodine