STAY UP LATE TONIGHT!!!
MARS WILL BE VISIBLE FROM EARTH!!!
IT WON'T BE LIKE THIS AGAIN, UNTIL 15 YEARS!!!

Answer:

\(m\angle Y=30^{\circ}\)

Step-by-step explanation:

In any right triangle, the cosine of an angle is equal to its adjacent side divided by the hypotenuse, or longest side, of the triangle.

Therefore, we have:

\(\cos Y=\frac{42\sqrt{3}}{84},\\Y=\arccos(\frac{42\sqrt{3}}{84})=\boxed{30^{\circ}}\)

Answer: multiplied by 5 or squared

Step-by-step explanation:

If the number 5 goes in and 25 is the result, the rule could be multiplying by 5 or squaring the number that goes in (input).

5 x 5 = 25

5^2 = 25.

Answer:

(-8,2)

Step-by-step explanation:

This is because when you reflect a point across the x-axis, the x-coordinate fo the point remains the same and the y-coordinate's sign gets switched.

(x,y) --> (x,-y)

(-8,-2) --> (-8,2)

There were 60 adults, 318 teenagers, and 192 preteens at the concert.

Let's use the variables "A", "T", and "P" to represent the number of adults, teenagers, and preteens, respectively, who attended the concert. We can start by using the information given in the problem to set up a system of equations:

A + T + P = 570 (equation 1)

5A + 3T + 2P = 1950 (equation 2)

We also know that "three-fourths as many teenagers as preteens attended," which we can write as:

T = (3/4)P (equation 3)

Now we can substitute equation 3 into equation 1 to eliminate T:

A + (3/4)P + P = 570

Simplifying:

A + (7/4)P = 570

Multiplying both sides by 4 to eliminate the fraction:

4A + 7P = 2280 (equation 4)

We can now use equations 2 and 4 to solve for A and P. Multiplying equation 4 by 5 and subtracting it from equation 2 (to eliminate A) gives:

5A + 3T + 2P = 1950

-(20A + 35P = 11400)

-17A - 32P = -9450

Simplifying:

17A + 32P = 9450 (equation 5)

Now we have two equations with two variables (equations 4 and 5), which we can solve using substitution or elimination. We'll use substitution:

From equation 4, we can solve for A in terms of P:

4A + 7P = 2280

4A = 2280 - 7P

A = (2280 - 7P)/4

Substituting this into equation 5, we get:

17[(2280 - 7P)/4] + 32P = 9450

Simplifying:

3915 - 119P + 32P = 9450

13P = 5535

P = 425

Now we can use equation 1 to solve for T:

A + T + P = 570

A + (3/4)P + P = 570

A + (7/4)P = 570

A + (7/4)(425) = 570

A = 60

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Answer:

The equation would be y=2x-2 so slope would be 2

sorry if i'm wrong

A midwife delivers 10 babies, with 50% chance of delivering a boy and 50% of delivering a girl. The probability that 6 out of 10 babies will be boys is 20.5%

The problem can be solved using binomial distribution, that is the probability of 2 possible outcomes in a number of trials.

The formula is given by:

P(x) = ⁿCx . P^x . (1 - P)^(n-x)

x = total number of event A

n = number of trials

P = probability of A in a single trial

Parameters given in the problem:

n = 10

x = 6

P = 50% = 0.5

Plug these parameters into the formula:

P(6 boys) = ¹⁰C₆ . (0.5)⁶ .  (0.5)⁴

                = 0.205 = 20.5%

Hence, the probability that 6 out of 10 babies will be boys is 20.5%

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Answer:

3.167

Step-by-step explanation:

Mean = Sum of the number of boxes/ sum of the number of months

Mean number of boxes sold last year = (435+428+437+398+447+426)/6= 428.5

Mean number of boxes sold this year=

(440+416+445+423+420+446)/6 = 431.667

Difference = 431.667-428.5

≈ 3.167

Answer:

Step-by-step explanation:

A=$23.49/5lb=$4.70/lb

B=$36.96/8lb=$4.62/lb

So store B is cheaper.

The most typical teaser in sports betting is a 6-point football teaser, which requires you to correctly predict the results of two games while also receiving six extra points on each spread.

It will pay about -120 depending on the book. Some bookies pay roughly 6-1 for a two-team, six-point pleaser. In order to break even, bettors must win each leg around 38% of the time.

Make sure your 6-point, two-team teasers pay -120 or greater. If you're not being treated fairly there, you most likely won't be on other teasers either.

If you're betting a 6-point teaser at -120, you need to win each leg 74% of the time to break even.

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Answer:

the correct answer is B for the blue graph

Answer: 9 May

Step-by-step explanation: 3291684271 Fanelli Furs

594683219 Brooklyn Pets

7677095385 Maple Garage

8765713281 PAYMENT

321447162 Caruso's Restaurant

Previous

Balance

$420.50

4-10700000

Also this doesn't make a lot of sense.

The unit price Harry figure out to get the good deal at the store: $34 for 7 roses, is $4.86 per rose. Option B is correct.

The unit price is the amount of money required to buy one unit of a item or goods.

To find the unit price, divide the total cost of the goods to the total number of goods.

Harry is trying to figure out if it's a good deal. There is a special at the store: $34 for 7 roses.

Let suppose unit price of one rose is x. Thus,

\(x=\dfrac{34}{7}\\x\approx4.86\)

Thus, the unit price Harry figure out to get the good deal at the store: $34 for 7 roses, is $4.86 per rose. Option B is correct.

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As a result, for the same data set, a 99% confidence interval would have a greater margin of error than a 90% confidence interval.

Answer: If a 90% confidence interval is constructed based on a sample of data, and it is 74% + 3%, a 99% confidence interval based on this same sample of data would have a larger margin of error and probably a different center.

What is a confidence interval? A confidence interval is a statistical technique used to establish the range within which an unknown parameter, such as a population mean or proportion, is likely to be located. The interval between the upper and lower limits is called the confidence interval. It is referred to as a confidence level or a margin of error.

The confidence level is used to describe the likelihood or probability that the true value of the population parameter falls within the given interval. The interval's width is determined by the level of confidence chosen and the sample size's variability. The confidence interval can be calculated using the standard error of the mean (SEM) formula

.A 90% confidence interval indicates that there is a 90% chance that the interval includes the population parameter, while a 99% confidence interval indicates that there is a 99% chance that the interval includes the population parameter.

When the level of confidence rises, the margin of error widens. The center, which is the sample mean or proportion, will remain constant unless there is a change in the data set. Therefore, alternative A is the correct answer.

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Answer: 50

Step-by-step explanation: hope this helpss

Answer:

750%

Step-by-step explanation:

First divide 37.5 by 5 to get 7.5. Then convert to percentage by multiplying 7.5 with 100. This leaves you with 750%.

Answer:

750%

Step-by-step explanation:

not sure lol

x=-3

x=-11

because

x(x+14)=-33

so if x = -11 it will be 3*-11

and if x= -3 it will be -3*11

Answer:

x = -3, -11

Step-by-step explanation:

First, factor

Get all the terms on one side by adding 33 to both sides:

\(x^2 + 14x + 33 = 0\)

now, you want to find two numbers that add up to 14 and multiply to 33.

those numbers would be 3 and 11.

so you can then make it:

\((x + 3)(x+11)=0\)

you know that either x + 3 or x + 11 = 0,

so you can say:

x + 3 = 0

x = -3

ork

x + 11 = 0

x = -11

so x = -3, -11.

For further info you can go to: bit. ly / khanacademyquadratics

The present value of an amount of $3,000 due to be paid in 3 years is equal to an amount, that with accumulated desired interest would grow to be $3,000 three years from now. This is because the present value is the value of the future payment today, after taking into account the time value of money and the interest rate. The answer to this question is C.

To calculate the present value of $3,000 due in 3 years, we need to discount the future payment back to its present value using the interest rate. This means that we need to find an amount that, when invested today at the given interest rate, will grow to be $3,000 in 3 years.

For example, if the interest rate is 5%, the present value of $3,000 due in 3 years would be approximately $2,530. This means that if you invest $2,530 today at 5% interest, it will grow to be $3,000 in 3 years.

Therefore, the correct answer is C, and we need to know the interest rate to calculate the present value accurately. Answer A is incorrect because the expected value of $3,000 does not take into account the time value of money and the interest rate. Answer B is incorrect because the present value should always be less than the future value if the interest rate is greater than zero. Answer D is incorrect because the expected value and the present value are not the same.

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Answer: its 16 inches

Step-by-step explanation:                                                                                                            

yes your right

The products obtained from the reactions of (E)- and (Z)-hex-3-ene with D2 in the presence of a platinum catalyst are related as enantiomers.

Hence, the correct option is E.

Enantiomers are stereoisomers that are non-superimposable mirror images of each other. In this case, the (E)- and (Z)-isomers have different spatial arrangements around the C=C double bond. When they react with D2 in the presence of a platinum catalyst, the deuterium atoms add to the double bond, resulting in two new chiral centers.

Since the two isomers have different spatial arrangements around the double bond, the addition of deuterium atoms will produce enantiomeric products. Therefore, the products obtained from the reactions of (E)- and (Z)-hex-3-ene with D2 are related as enantiomers.

Hence, the correct option is E.

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Answer:

20.9048

Step-by-step explanation:

37.33% of 56 = 0.3733 × 56 = 20.9048

i hope this is what you meant. 37.33% of 56 is 20.9048

Answer:

66.6607142857%

Step-by-step explanation:

56/100 = 0.56

37.33/0.56 = 66.6607142857

15 Studied Economics

30-15

.15

But it's can't be possible there is Tutorial Group of 30

Answer:

See below

Step-by-step explanation:

Answer:

\(\boxed{478.02}\)

Step-by-step explanation:

→ First understand what Pythagoras theorem is

Pythagoras is a theorem used to find the hypotenuse (the side opposite to the right-angle) of a triangle. We would need the base lengths as well the height in order to use Pythagoras.

→ State the formula and identify the letters

a² + b² = c² ⇒ where 'a' is 380cm, 'b' is 290cm and 'c' is what we are trying to work out

→ Substitute in the values into the formula

380² + 290² = c²

⇒ Simplify

144400 + 84100 = c²

⇒ Collect the numbers together

228500 = c²

⇒ Square root both sides to find 'c'

478.0167361 = c

→ The length of the diagonal is 478.02

Answer:

a+b= 12, a = b+8

Step-by-step explanation:

We know that a plus b equals 12 a+b=12

The only other thing we know is that a is 8 more than b so a=b+8

From Properties of Triangles , both figures are connected and angle ∠B or ∠2 is 65°

Basic properties of triangles are:

1)A triangle's (of all varieties) total sum of angles is 180°.

2)The length of a triangle's two longest sides added together is longer than the third side.

3)Similar to this, the length of the third side of a triangle's third side is shorter than the difference between its two sides.

4)The longest of a triangle's three sides is the side that faces the larger angle.

5)A triangle's exterior angle is always equal to the product of its inner and exterior opposite angles. The outer angle attribute of a triangle refers to this characteristic.

As sum of angles in a triangle is 180° and sum of angles on a line is also 180°, both the figures are related.

Sum of angles=180°;

\(50+B+65=180;\\B=65\)

∠B=65°

Similarly angle 2 is also 65°

From Properties of Triangles , both figures are connected and angle ∠B or ∠2 is 65°

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Answer:

k = 15

Step-by-step explanation:

For a proportional relationship to exist then for both points

k = \(\frac{y}{x}\) ← k is the constant of proportion, that is

\(\frac{5}{3}\) = \(\frac{k}{9}\) ( cross- multiply )

3k = 45 ( divide both sides by 3 )

k = 15

In mathematics, the place value chart is a tool that helps students understand the value of digits in a number. It is a visual representation of how digits are grouped and arranged to represent numbers. The place value chart is arranged in columns, with each column representing a different place value.

The place value chart starts with the ones place, also called units place. This is the rightmost column and it represents the ones digit in a number. The next column is the tens place, which represents the tens digit in a number. The hundredth place represents the hundreds digit and so on. Each column is ten times larger than the previous one.

A place value chart can be used to understand the value of a digit in a number.

Place value chart also helps to understand decimal numbers, which are numbers that have a decimal point. The decimal point separates the whole numbers from the fractional numbers. Each place to the right of the decimal point represents a smaller value.

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The degrees of freedom for a chi-square goodness-of-fit test are calculated as the number of categories minus 1.

Suppose we wish to determine if an ordinary-looking six-sided die is fair, or balanced, meaning that each face has a probability of 1/6

of arrival on top when the die is tossed. We could toss the die dozens, maybe hundreds, of times and compare the actual number of times each face arrival on top to the scheduled number, which would be 1/6

of the total number of tosses. We would not expect each number to be exactly 1/6 of the total, but it should be close.

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