What is '7b-2b+3-1' ? Need working and it's equations!!

Mathematics

2 answers:

Vsevolod [243]3 years ago

7 0

7b-2b+3-1=0
5b+2=0
5b=-2
b=-2/5

Nitella [24]3 years ago

4 0

7b - 2b + 3 - 1 = 0

(7b - 2b) = 5b
3 - 1 = 2

Thus:

5b + 2 = 0
5b = -2
b = -2/5 = -0.4

You might be interested in

XD me banearon de nuevo pero regrese igualmente no me pueden moderadores.

aleksandrvk [35]

Answer:

yeah what you said

7 0

3 years ago

Suppose that on the average, 7 students enrolled in a small liberal arts college have their automobiles stolen during the semest

strojnjashka [21]

Answer:0.9991

Step-by-step explanation:

The Poisson distribution probability formula is given by :-

$P(X=x)=\dfrac{e^{-\lambda}\lambda^x}{x!}$ , where \lambda is the mean of the distribution and x is the number of success

Given : $\lambda=7$

The probability that more than 1 student will have his automobile stolen during the current semester is given by :-

$P(x\geq1)=1-P(x=0)=1-(\dfrac{e^{-7}7^0}{0!})\\\\=1-e^{-7}=0.99908811\approx0.9991$

Hence, the probability that more than 1 student will have his automobile stolen during the current semester =0.9991

3 0

3 years ago

AYUDAAAA, LES DOY CINCO ESTRELLAS SI LO RESUELVEN BIEN

liq [111]

dividido por la epotenusa es 7 :v

3 0

3 years ago

Proving triangles similar

goldfiish [28.3K]

Answer:

x=11

Step-by-step explanation:

You do 38/3x+3 and 19/x+7 and then cross mulitply and get 57x+57=38x+266. Then yoy subtract 57 from 266 and get 57x=38x+209. Now you have to subtract 38 from 57 and then answer will be 19. So now you have 19x=209. Finally you divide 209 by 19 and get x=11. Good luck!

6 0

3 years ago

Miley drove 288 miles in 4 1/2 hours.what was mileys average speed in miles per hour?

Norma-Jean [14]

1/2 of an hour is = 30
288 / 4.30=67
The answer is 67 miles per hour.

8 0

3 years ago