Answer:
g(4) = 157
Step-by-step explanation:
g(x) = 8x^2 + 9x - 7
Let x =4
g(4) = 8 * 4^2 +9*4 -7
=8*16 +36 - 7
=128+36-7
=157
Step-by-step explanation:
#1
- a + 10 = 20 ⇒ subtract 10 form both sides ⇒ a = 10
- Subtraction property of equality
#2
- 4x - 5 = x + 12 ⇒ add 5 to both sides ⇒ 4x = x + 17
- Addition property of equality
#3
- 5(x + 7) = -3 ⇒ multiply 5 to both terms ⇒ 5x + 35 = - 3
- Distributive property of multiplication
#4
- If AB = BC and BC = CD, then AB = CD
- Transitive property of equality
Answer:
Resistance of lamp is 0.2 ohms
Step-by-step explanation:
Given:
Voltage= 5 volts
Current =25 amps
Now using Ohms law we get
![V=IR](https://tex.z-dn.net/?f=V%3DIR)
Substituting values of V and I we get
![25=5R](https://tex.z-dn.net/?f=25%3D5R)
![\therefore R=\frac{5}{25}](https://tex.z-dn.net/?f=%5Ctherefore%20R%3D%5Cfrac%7B5%7D%7B25%7D)
![\therefore R=0.2 ohms](https://tex.z-dn.net/?f=%5Ctherefore%20R%3D0.2%20ohms)
I think it s 8 cause I think you times the sides