2 years ago

83 - 5y = -6 6x + 2y = -16

Mathematics

2 answers:

AnnyKZ [126]2 years ago

6 0

Yeeee that’s right I checked

Nonamiya [84]2 years ago

5 0

The is the Answer : -8/3 - y/3

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If y=-18 when x=6 find x when y=6

torisob [31]

Answer:

X=-2

Step-by-step explanation: x is negative 1/3 of y. We can tell because of this example so when you divide y=6 by negative 1/3 it makes -2!

5 0

3 years ago

What is pie time the square root of 9

Whitepunk [10]

Π*√9

π*3

3π π ≈ 3.1416

3*3.1416

≈ 9.4248

Hope this explains it.

4 0

3 years ago

I need Answer pls plz pls pls

Fofino [41]

Answer:

±square root 20

Step-by-step explanation:

x²= 20

x= square root 20

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3 0

3 years ago

(-1) + (-1) + (-1) + (-1) + ... 500 times =<br>(a) 500<br>(b) 1<br>(c) -1<br>(d) -500

pickupchik [31]

Answer:

Step-by-step explanation:

(-1) + (-1) = -2... so 500 times... it would be -500.

4 0

3 years ago

Grumpy Corp drug tests all of the recent college graduates it hires each year. The drug test currently used correctly determines

Vedmedyk [2.9K]

Answer:

Hence, the probability of a Negative test is $P(T^C)=0.5904$ .

Step-by-step explanation:

(a)

Let $D=$ Drug user and $T=$ Test positive

Probability of drug users $P(D)=36\%=0.36$

$P(\frac{T}{D})=96\%=0.96$

$P(\frac{T^c}{D^c})=90\%=0.90$

(b)

Find the Probability of a Negative test,

$P(T^C)=P(\frac{T^C}{D^C})\cdot P(D^C)+P(\frac{T^C}{D})\cdot P(D)$

$\Rightarrow P(T^C)=0.9\cdot(1-0.36)+(1-0.96)\cdot 0.36$

$\Rightarrow P(T^C)=0.9\cdot 0.64+0.04\cdot 0.36$

$\Rightarrow P(T^C)=0.576+0.0144$

$\Rightarrow P(T^C)=0.5904$

4 0

2 years ago