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suter [353]
3 years ago
9

What is the value of n? 9×27+2×31-28=n

Mathematics
2 answers:
gregori [183]3 years ago
4 0
N=277 Hope this helps :)

skelet666 [1.2K]3 years ago
4 0
PEMDAS!! Parentheses exponents multiplication division adding subtracting
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Could I have help with this question
skad [1K]
See, pls, this:
If ∠y=∠CBD, then in
ΔABX: ∠A=40°; ∠X=90° ⇒ ∠ B=180-(40+90)=50°.
∠B of ΔABX=∠CBD=∠y=50°.
Answer: 50°.
7 0
2 years ago
19 ,20 ,21 please show your work (worth 100 points)
RoseWind [281]

Answer:

Step-by-step explanation:

19 - you would divide number of beads by beads per bracelet to get number of bracelets

blue = 258/6 = 43

silver = 428/9 = 47.56, round down because we're looking at complete bracelets = 47

rose = 102/3 = 34

white = 258/7 =36.86, round down again = 36

20 - they can make 43 + 47 + 34 + 36 = 160 bracelets before they run out, and they will run out of rose first since it has the smallest number of bracelets

21 - multiply num of beads by num of bracelets for each color and add them up

blue = 6 * 7 = 42

silver = 9 * 7 = 63

rose = 3 * 7 = 21

white = 7 * 7 = 49

42 + 63 + 21 + 49 = 175

5 0
3 years ago
Suppose 44% of the students in a university are baseball players. If a sample of 736 students is selected, what is the probabili
zaharov [31]

Required probability is 0.8990

Given that,

p = 0.44

1 - p = 0.56

n = 736

\mu_\hat{p}} = p = 0.44\\\sigma_\hat{p}} = \frac{p*(1-p)}{n} = \sqrt(\frac{0.44*0.56)}{736} ) =0.01830

Converting Normal distribution to standard normal because  A normal distribution is determined by two parameters the mean and the variance. A normal distribution with a mean of 0 and a standard deviation of 1 is called a standard normal distribution. Hence it's easy to work with standard normal distribution.

P(0.14<\hat{p}<0.47) =  P((0.41-0.44)/0.01830) < \frac{\hat{p} - \mu _{\hat{p}}  }{\sigma _{\hat{p}} }<(0.47-0.44)/0.01830

Using normal algebra we get:

= P(-1.64 < z < 1.64)

= P(z < 1.64) - P(z < -1.64)

= 0.9495 - 0.0505

= 0.8990

Thus, required probability is 0.8990

To learn more about normal distribution visit:

brainly.com/question/4079902

#SPJ4

3 0
1 year ago
PLEASE HELP SOLVE BOTH
Radda [10]
In my school, we do congruent statements with triangles by using SSS,ASA, SAS, etc.

For the first one, it would be SSS because the side-side-side matches up with side-side-side.

For the second one, I believe they are not similar because the lengths are corresponding between the two triangles.

Hope this helps! :)

If you need any help on triangle congruency statements, I have a flip-booklet we made in our geo class that helps a lot, and I would love to send it to you!
7 0
3 years ago
Mrs.E bought 3 drinks and 5 sandwiches for $25.05 and Mr.E bought 4 drinks and 2 sandwiches for $13.80. How much does each drink
MAVERICK [17]

Answer:

$1.35

Step-by-step explanation:

Set up a system of equations, where d represents the price of one drink and s represents the price of one sandwich:

3d + 5s = 25.05

4d + 2s = 13.80

We can solve this by elimination by multiplying the top equation by -2 and multiplying the bottom equation by 5.

-6d - 10s = -50.1

20d + 10s = 69

Add them together:

14d = 18.9

d = 1.35

7 0
3 years ago
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