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Arisa [49]
4 years ago
15

What is x in -3x-8y=20, -5x+y=19

Mathematics
1 answer:
borishaifa [10]4 years ago
5 0

Answer:

(x,y)=(-4, -1) so to answer your question, x is -4

Step-by-step explanation:

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A pharmaceutical company receives large shipments of aspirin tablets. The acceptance sampling plan is to randomly select and tes
DerKrebs [107]

Answer:

a) The probability that this whole shipment will be​ accepted is 30%.

b) Many of the shipments with this rate of defective aspirin tablets will be rejected.

Step-by-step explanation:

We have a shipment of 3000 aspirin tablets, with a 5% rate of defects.

We select a sample of size 48 and test for defectives.

If more than one aspirin is defective, the batch is rejected.

The amount of defective aspirin tablets X can be modeled as a binomial distribution random variable, with p=0.55 and n=48

We have to calculate the probabilities that X is equal or less than 1: P(X≤1).

P(X\leq1)=P(X=0)+P(X=1)\\\\\\P(0)=\binom{48}{0}(0.05)^0(0.95)^{48}=1*1*0.0853=0.0853\\\\\\P(1)=\binom{48}{1}(0.05)^1(0.95)^{47}=48*0.05*0.0897=0.2154\\\\\\P(X\eq1)=0.0853+0.2154=0.3007

8 0
3 years ago
Need answer asap pls...........
astraxan [27]
D I’m pretty sure. i counted all boxes and it equaled to 26
8 0
3 years ago
Read 2 more answers
What is the value of x?<br><br> x = 45°<br> x = 65°<br> x = 70°<br> x = 115°
dem82 [27]

The three inside angles of a triangle need to equal 180 degrees.

To find X subtract the two known angles from 180.

X = 180 - 45 - 70

X = 65 degrees.

8 0
4 years ago
Read 2 more answers
Find the area of the figure​
statuscvo [17]
I just looked it up and it said it is 180
3 0
3 years ago
Help plz, just give me the points on the graph thanksss &lt;33
Kryger [21]
Very simple, we don’t know the units on the graph but I can tell you it will be linear until when it breaks the rule and goes .2 grams one year
4 0
3 years ago
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