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Westkost [7]
3 years ago
12

The difference 25(d−10)−23(d+6)25(d−10)−23(d+6) is

Mathematics
2 answers:
MArishka [77]3 years ago
8 0
25d - 250 | - 575d^2 + 2277d + 34362
Vlada [557]3 years ago
3 0

Answer: 2d - 388

Step-by-step explanation:

To expand the equation 25(d−10)−23(d+6)

We open the brackets first;

25d - 250 - 23d - 138

Collecting like terms

= 25d - 23d - 250 - 138

= 2d - 388

Therefore the difference is 2d - 388

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Rudik [331]

Answer:

What do you mean?

Step-by-step explanation:

7 0
2 years ago
In a binomial experiment with 45 trials, the probability of more than 25 success can be approximated by What is the probability
Pani-rosa [81]

Answer:

0.6 is the probability of success of a single trial of the experiment

Complete Problem Statement:

In a binomial experiment with 45 trials, the probability of more than 25 successes can be approximated by P(Z>\frac{(25-27)}{3.29})

What is the probability of success of a single trial of this experiment?

Options:

  • 0.07
  • 0.56
  • 0.79
  • 0.6

Step-by-step explanation:

So to solve this, we need to use the binomial distribution. When using an approximation of a binomially distributed variable through normal distribution , we get:

\mu =\frac{np}{\sigma}=\sqrt{np(1-p)}

now,

Z=\frac{X-\mu}{\sigma}

so,

by comparing with P(Z>\frac{(25-27)}{3.29}), we get:

μ=np=27

\sigma=\sqrt{np(1-p)} =3.29

put np=27

we get:

\sigma=\sqrt{27(1-p)} =3.29

take square on both sides:

10.8241=27-27p

27p=27-10.8241

p=0.6

Which is the probability of success of a single trial of the experiment

5 0
3 years ago
This is not a multiple choice question. Please help!
Shkiper50 [21]
Complentary angle = 90 degrees
 
90 - 16 = your answer
5 0
3 years ago
What is the tenths in 86.43
ladessa [460]

Hey! Glad I can help!!!

0.4 is the tenth in there.

If satisfies please leave a review and give Brainiest :)

7 0
3 years ago
Read 2 more answers
Z-49+851=100+21z /////////////////////////////////////////////////
WITCHER [35]

Answer:

z=35.1

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
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