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Serjik [45]
3 years ago
5

Pls answer this i really need it

Mathematics
1 answer:
jeka57 [31]3 years ago
4 0

Answer:

8.15

Step-by-step explanation:

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Taymoor is going to apply for two different jobs. He estimates that
Ostrovityanka [42]

Answer:

0.58

Step-by-step explanation:

The probability that Taymoor gets at least one job is a  sum of probabilities of 3 events:

1.He gets Job 1 (P(1.yes)= 0.3) and doesn't get the job 2 (P(2.not)=1-0.4=0.6)

P(1.yes,2.not)=P(1.yes)*P(2.not)=0.3*0.6=0.18

2. He doesn't get job1 (P(1.not)= 1-03=0.7 ) and gets job2(P2.yes)=0.4)

P(1.not,2.yes)=P(1.not)*P(2.yes)=0.7*0.4=0.28

3. He gets  job1 (P(1.yes)= 0.3 ) and gets job2(P2.yes)=0.4)

P(1.yes,2.yes)=P(1.yes)*P(2.yes)=0.3*0.4=0.12

The resulted probability is P(gets job)= 0.18+0.28+0.12=0.58

6 0
4 years ago
(6) (Bonus) Determine the Cartesian equation of the surface with spherical coordinate equation rho = 2 cos θ sin φ − 2 sin θ sin
KonstantinChe [14]

Answer:

Hence, the sphere has a radius of \sqrt{3}  and is centered at the point (1,-1,1)

Step-by-step explanation:

We have the equation

\rho=2cos\theta cos\phi-2sin\theta sin\phi+2cos\phi

We have to take into account the relation between coordinates

\rho=\sqrt{x^2+y^2+z^2}\\x=\rho cos\theta sin\phi\\y=\rho sin\theta sin\phi\\z= \rho cos\phi

by substituting we have:

\rho=2[\frac{x}{\rho}-\frac{y}{\rho}+\frac{z}{\rho}]\\\\\rho^2=2x-2y+2z\\\\x^2+y^2+z^2=2x-2y+2z

We have to complete squares:

(x^2-2x+1)+(y^2+2y+1)+(z^2-2z+1)-1-1-1=0\\\\(x-1)^2+(y+1)^2+(z-1)^2=3

Hence, the sphere has a radius of \sqrt{3}  and is centered at the point (1,-1,1)

hope this helps!!

4 0
3 years ago
What is the surface area of the square pyramid?<br> (Figure is not drawn to scale.)
Reil [10]
Area of the base = 8^2 = 64

area of 1 traingle = 1/2 * 8 * 5.4 =  21.6

there are 4 triangular sides  so their area = 4 * 21.6  = 86.4

Total surface area = 64 + 86.4 =  150.4 cm2

D
6 0
3 years ago
During 2002 and 2003, a total of 9316 people were infected with a specific virus. In 2003, 2.35 times as many people were infect
Alla [95]
X = 2002, y = 2003

x + y = 9316
y = 2.35x

x + 2.35x = 9316
3.35x = 9316
x = 9316 / 3.35
x = 2780.8 rounds to 2781 <=== year 2002

y = 2.35x
y = 2.35(2781)
y = 6535.3 rounds to 6535 <== year 2003

3 0
4 years ago
Nydia has overdraft fees totaling -$135. If she has 9 overdrafts, what was the charge for a single overdraft?
Kitty [74]
To find how much each draft costs all you have to do is divide -135 by 9 and you get your answer:)
8 0
4 years ago
Read 2 more answers
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