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3 years ago

What is the distance between (7,0) and (7,-9)

Mathematics

2 answers:

Naddika [18.5K]3 years ago

5 0

Answer:

9 units

Step-by-step explanation:

You can use the distance formula, or you could recognize that since both points have the same x-coordinate, they lie on a vertical line, so the distance between them would be the absolute value of 0 and -9, which is 9.

Hope this helped! :) (Srry I was a little late)

natali 33 [55]3 years ago

3 0

Answer:

the answer is nine units

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Plastic parts produced by an injection-molding operation are checked for conformance to specifications. Each tool contains 15 ca

xenn [34]

Answer:

a) 0.4352

b) 0.5165

c) 0.0813

Step-by-step explanation:

In this problem we have 3 defective parts scattered among 15 parts.

We are going to select 3 out of 15 without replacement, so the situation can be modeled with the Hypergeometric distribution.

If X is the random variable that measures the number of defective parts in a sample of 3, the probability of selecting exactly k defective parts out of 15 would be given by

$P(X=k)=\displaystyle\frac{\binom{3}{k}\binom{15-3}{3-k}}{\binom{15}{3}}$

a) what is the probability that the inspector finds exactly one nonconforming part?

Replacing k with 1 in our previous formula, we get

$P(X=1)=\displaystyle\frac{\binom{3}{1}\binom{15-3}{3-1}}{\binom{15}{3}}=\displaystyle\frac{3*66}{455}=0.4352$

b) what is the probability that the inspector finds at least one nonconforming part?

This would be P(X=1)+P(X=2)+P(X=3) = 1 - P(X=0).

$P(X=0)=\displaystyle\frac{\binom{3}{0}\binom{15-3}{3-0}}{\binom{15}{3}}=\displaystyle\frac{1*220}{455}=0.4835$

so 1 - P(X=0) = 1 - 0.4835 = 0.5165

c) what is the probability that the inspector finds at least two nonconforming part?

P(X=2) + P(X=3) = 1 - (P(X=0) + P(X=1)) = 1 - (0.4835 + 0.4352) =

= 1 - 0.9187 = 0.0813

6 0

3 years ago

What is logbx=logax /logab used for? Please show and explain an example.

Katyanochek1 [597]

Answer:

Is it too late to answer this?

Step-by-step explanation:

4 0

3 years ago

If Logx (1 / 8) = - 3 / 2, then x is equal to

snow_tiger [21]

Answer:

Let's solve!

Step-by-step explanation:

$logx^{\frac{1}{8} } = -\frac{3}{2}$

$then$

$10^{-\frac{3}{2}} = x^{\frac{1}{8} }$

$(10^{-\frac{3}{2} })^{8} = (x^{\frac{1}{8} })^{8}$

$x = 10^{3*4} = 10^{-12}$

$x= 10^{-12}$

If the equation looks like this, then it has the solution

$x= 10^{-12}$

Another answer is

√x = 2 or x = 4

I hope this helps!

For more help:

brainly.com/question/9719370

brainly.com/question/7126917

brainly.com/question/3505855

8 0

4 years ago

How many times can 37 go into 94 please help!!!!!

lana66690 [7]

37*2=74 Remainder 20

6 0

3 years ago

Need help ASAP please!!

Alex

Answer:

Step-by-step explanation:

4. 2x-5>1 = 2x>6 x>3 ( since there is a line under the > you will make the dot filled in/ closed at the number 3 and point it towards the positives or higher numbers than three since x is bigger

5. 2x+5>1 = 2x>-4 x>-2 Make this a closed/ filled in dot too at -2 because of the line underneath and point the arrow to all numbers bigger than -2 since x is bigger

6. 2x-5<1 = 2x<6 x<3 This dot will just be a circle NOT FILLED IN at 3 and point the arrow to all values lower than 3

5 0

3 years ago