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3 years ago

What does x equal??

Mathematics

2 answers:

Julli [10]3 years ago

3 0

X = 33 °

Since PQS forms a 90 degree angle, subtract 57 (from PQR) to get RQS.

90-57=33

krok68 [10]3 years ago

3 0

Step-by-step explanation:

m<PQS = 90°

m<PQR +m<RQS = 90°

57°+x° = 90°

x° = 90°-57° = 33°

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What is the theoretical probability of rolling all 5 dice on the same number?

Kisachek [45]

The theoretical probability of (for example) rolling 5 ones is 1/(6^5) or approximately 0.013%. Because it doesn't matter which number we get five of we can multiply it by 6 to get 1/(6^5) or approximately 0.077%.

4 0

3 years ago

Michmoo Computer Company sells computers and computer parts by mail. The company assures its customers that products are mailed

Anastaziya [24]

Answer: (60.858, 69.142)

Step-by-step explanation:

The formula to find the confidence interval for mean :

$\overline{x}\pm z_c\dfrac{\sigma}{\sqrt{n}}$ , where $\overline{x}$ is the sample mean , $\sigma$ is the population standard deviation , n is the sample size and $z_c$ is the two-tailed test value for z.

Let x represents the time taken to mail products for all orders received at the office of this company.

As per given , we have

Confidence level : 95%

n= 62

sample mean : $\overline{x}=65$ hours

Population standard deviation : $\sigma=18$ hours

z-value for 93% confidence interval: $z_c=1.8119$ [using z-value table]

Now, 93% confidence the mean time taken to mail products for all orders received at the office of this company :-

$65\pm (1.8119)\dfrac{18}{\sqrt{62}}\\\\ 65\pm4.142\\\\=(65-4.142,\ 65+4.142)\\\\= (60.858,\ 69.142)$

Thus , 93% confidence the mean time taken to mail products for all orders received at the office of this company : (60.858, 69.142)

8 0

3 years ago

In january, wally's widget world had sales of $12,500 and expenses of $10,200. the profit for january was _____. 2,300 7,900 10,

kotykmax [81]

2,300
I hope this helps!

4 0

3 years ago

Read 2 more answers

Factor completely. 36c^2−8cd+49d^2

Molodets [167]

$\huge\bold\green{Answer:-}$

Simplifying

36c2 + -84cd + 49d2 = 0

Reorder the terms:

-84cd + 36c2 + 49d2 = 0

Solving

-84cd + 36c2 + 49d2 = 0

Solving for variable 'c'.

Factor a trinomial.

(6c + -7d)(6c + -7d) = 0

Subproblem 1

Set the factor '(6c + -7d)' equal to zero and attempt to solve:

Simplifying

6c + -7d = 0

Solving

6c + -7d = 0

Move all terms containing c to the left, all other terms to the right.

Add '7d' to each side of the equation.

6c + -7d + 7d = 0 + 7d

Combine like terms: -7d + 7d = 0

6c + 0 = 0 + 7d

6c = 0 + 7d

Remove the zero:

6c = 7d

Divide each side by '6'.

c = 1.166666667d

Simplifying

c = 1.166666667d

Subproblem 2

Set the factor '(6c + -7d)' equal to zero and attempt to solve:

Simplifying

6c + -7d = 0

Solving

6c + -7d = 0

Move all terms containing c to the left, all other terms to the right.

Add '7d' to each side of the equation.

6c + -7d + 7d = 0 + 7d

Combine like terms: -7d + 7d = 0

6c + 0 = 0 + 7d

6c = 0 + 7d

Remove the zero:

6c = 7d

Divide each side by '6'.

c = 1.166666667d

Simplifying

c = 1.166666667d

Solution

c = {1.166666667d, 1.166666667d}

<h2>I HOPE IT HELPS ♥️</h2>

3 0

3 years ago

Please help I forgot how to do this

timofeeve [1]

Answer:

See answer below.

Step-by-step explanation:

2≥ g/-4

2( -4) ≥ g

-8 ≥ g

graph : Closed circle at -8 and shade to the left of -8

3 0

2 years ago

What does x equal??​

What does x equal??