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3 years ago

¿Q###N S#R# , S#R#, Q## D# N#CH# # V#C#S S#L# Y D# D## S# V#? adivinanza

Mathematics

2 answers:

Blababa [14]3 years ago

8 0

<span>who will be, it will be that night comes out and day goes...........</span>

bezimeni [28]3 years ago

4 0

Quien sera, sera que de noche sale y de dia se va?

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Rewrite cot 80° in terms of its cofunction.

zysi [14]

Answer:

tan 10 degrees.

Step-by-step explanation:

tan x = cot (90 - x) so:

cot 80 = cot (90 - 10)

= tan 10.

8 0

3 years ago

Mr. Garcia is spreading mulch in his yard he spreads 3 square yards and 40 minutes how many square yards can he mulch in 1 hour

Verdich [7]

Answer:

Step-by-step explanation:

3 over 2/3 → 3/1 divided by 2/3 → 3/1 x 3/2 (do keep change flip)

once you multiply you'll get 9/2.

4 0

3 years ago

Suppose a shipment of 400 components contains 68 defective and 332 non-defective computer components . From the shipment you tak

Alona [7]

Answer:

The standard deviation for the number of defective parts in the sample is 1.88.

Step-by-step explanation:

The sample is with replacement, which means that the trials are independent, and thus, the binomial probability distribution is used to solve this question.

Binomial probability distribution

Probability of exactly x successes on n repeated trials, with p probability.

The expected value of the binomial distribution is:

$E(X) = np$

The standard deviation of the binomial distribution is:

$\sqrt{V(X)} = \sqrt{np(1-p)}$

68 defective out of 400:

This means that $p = \frac{68}{400} = 0.17$

From the shipment you take a random sample of 25.

This means that $n = 25$

Standard deviation for the number of defective parts in the sample:

$\sqrt{V(X)} = \sqrt{np(1-p)} = \sqrt{25*0.17*0.83} = 1.88$

The standard deviation for the number of defective parts in the sample is 1.88.

6 0

3 years ago

Help me with this guys !! (a lot is points like 80) PLEASEEE HELP

vaieri [72.5K]

Answer:

1) 24

2) 24

3) b. 9n +5

Step-by-step explanation:

1) substitute

4(7) + 2(-2)

solve

28 + -4

2) substitute

P = (2)(3)(4)

multiply

4) im not sure, my apologies

5) i'm not sure, i don't understand what's being asked, if you rephrase this, i can give you an answer

have a lovely day <3

5 0

3 years ago

Read 2 more answers

Solve this system using the linear combination method. Show your work.

kipiarov [429]

Answer:

Let's solve for x.

4x+2y=5

Step 1: Add -2y to both sides.

4x+2y+−2y=5+−2y

4x=−2y+5

Step 2: Divide both sides by 4.

−2y+5

−1

Let's solve for x.

−4x−5y=7

Step 1: Add 5y to both sides.

−4x−5y+5y=7+5y

−4x=5y+7

Step 2: Divide both sides by -4.

−4x

−4

5y+7

−4

−5

−7

Answer:

−5

−7

Step-by-step explanation:

I hope this helps

3 0

3 years ago