75% of students is blank of 20 students

Answer:

61.8

Step-by-step explanation:

\( \frac{55.1 + 67.9 + 59.2 + 64.1 + 61.8 + 62.7}{6} \)

Answer:

Step-by-step explanation:

\(\text{The area of a circle is}\\ \\ A=\frac{\pi d^2}{4}\\ \\ d=20ft\\ \\ A=\frac{\pi (20^2)}{4}\\ \\ A=\frac{400\pi}{4}\\ \\ A=100\pi ft^2\)

The maximum temperature during summer in that year was 34°C.

It's not possible for the maximum temperature in Gulmarg, Kashmir to rise by 44°C during the summer.

A temperature rise of that magnitude would be extremely unusual and potentially dangerous.

However, assuming that the question meant to ask about the difference between the minimum temperature in January and the maximum temperature in summer, we can proceed with the calculation.

The minimum temperature in January was -10°C, and if we add 44°C to it, we get:

-10°C + 44°C = 34°C

Therefore, the maximum temperature during summer in that year was 34°C.

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Answer:

Yes, it is a true statement

Step-by-step explanation:

Since two negatives cancel out the equation would be

4 + 10 and that equals 14.

So the statement is true!

Answer: 12

Step-by-step explanation:

7(3)-2(4)-1=12

Step-by-step explanation:

(1/8 - X) = -1/8

or, (1/8+1/8) = X

or, X=1/4

it's the final answer you can check it if you want

The number that is closest to -1 is -0.82 while the number that is closest to -1/4 is -0.28.

In order to obtain the numbers that are close to a given number, we need to place the numbers side by side for a better understanding. For instance, the number 3 is closer to number 1 while the number 9 is closer to number 10.

Given the number line above, we can arrive at the conclusion that -0.82 is closer to -1 because by approximating the decimal, we will arrive at figure 1. Also, the number, -0.28 is closer to -1/4 or - 0.25 when converted to decimal.

Options;

A. -0.28

B. -0.82

C. -4/5

D. -1/5

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the measure of the value a is 24°

What is are of triangle?

The territory included by a triangle's sides is referred to as its area. Depending on the length of the sides and the internal angles, a triangle's area changes from one triangle to another. Square units like m2, cm2, and in2 are used to express the area of a triangle.

The sum of all angles of triangle = 180

Here given 3 angles are 2a, 3a and a+36°

So the sum of all the angles should be 180°

⇒2a+ 3a +a+36° = 180

⇒6a = 180-36

⇒a = 144/6= 24

Hence the measure of the value a is 24°

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Answer:

345963128

Step-by-step explanation:

very there is very nice namiuf

9514 1404 393

Answer:

  a) 9:45 pm

  b) 10:57 pm

Step-by-step explanation:

In the 15 hours between 7:30 am and 10:30 pm, the clock hands will have moved 15×0.95 = 14.25 hours = 14 hours and 15 minutes.

At 10:30 pm, the clock indicates 9:45 pm.

__

b) In the 9 hours between 10:30 pm and 7:30 am, the clock will have moved 9×0.95 = 8.55 hours, or 8 hours 33 minutes. That is, the clock needs to be set 27 minutes ahead of the actual time.

The clock need to be set to 10:57 pm.

_____

Alternate solution

At 95% speed, the clock loses 5%×60 minutes = 3 minutes each hour. In the 15 hours from morning to night, the clock will be 45 minutes slow. It will indicate 9:45 at 10:30 pm.

In the 9 hours from night to morning, the clock will lose 27 minutes so needs to be set 27 minutes fast. It should be set to 10:57 pm at 10:30 pm.

The balance after one year if you deposit one $50 envelope each month, all year is  $613.95.

The balance after 1 year can be determined using this formula:

Amount deposited monthly x annuity factor

Annuity factor = {[(1+r)^n] - 1} / r

Where:

Annuity factor = 1.004167^12 - 1 / 0.00417 = 12.279082

Balance = 12.279082 x 50 = $613.95

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Answer:

3/5, 4/5, 3/4

Step-by-step explanation:

First BC is 12 because of the Pythagorean Theorem. I use sohcahtoa to remember. sine is the side opposite of the angle divided by the hypotenuse of the triangle so 12/20 which is 3/5. cosine is adjacent / hypotenuse so 16/20 which is 4/5, and lastly tangent is opposite / adjacent which is 12/16 which is 3/4

The sine, cosine and the tangent of angle should be \(3\div 5, 4\div 5, 3\div 4\).

Here first we determine the BC by applying the Pythagorean Theorem.

\(= 20^2 - 16^2\\\\= 400 - 256\\\\= 144\)

So the BC should be 12

hence, based on this, we can say that The sine, cosine and the tangent of angle should be \(3\div 5, 4\div 5, 3\div 4\).

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Answer:

By using the value of cosine function relations, we can easily find the value of sin 120 degrees. Using the trigonometry formula, sin (90 + a) = cos a, we can find the sin 120 value. We know that the value of cos 30 degrees is √3/2. Therefore, sin 120° = √3/2

Step-by-step explanation:

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Answer:

I think there's 502

Step-by-step explanation:

if this is a olunomical question that should be it I believe, because you have to write in standered form then when it equals zero, then factor it

Bryan invested $1600 in the first account (earning 11% interest) and $4900 (6500 - 1600) in the second account (earning 7% interest).

Let's assume that Bryan invested an amount of x dollars in the first account, which earns 11% interest, and (6500 - x) dollars in the second account, which earns 7% interest.

The interest earned from the first account can be calculated as 0.11x, and the interest earned from the second account can be calculated as 0.07(6500 - x).

According to the problem, the total interest earned after one year is $519. So we can set up the equation:

0.11x + 0.07(6500 - x) = 519

Simplifying the equation:

0.11x + 455 - 0.07x = 519

0.04x + 455 = 519

0.04x = 64

x = 64 / 0.04

x = 1600

Therefore, Bryan invested $1600 in the first account (earning 11% interest) and $4900 (6500 - 1600) in the second account (earning 7% interest).

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Answer:

A variable is anything that can change or be changed. In other words, it is any factor that can be manipulated, controlled for, or measured in an experiment.

There are three main variables: independent variable, dependent variable and controlled variables.

A relationship between two variables whereby a change in one coincides with a change in the other is referred to as causality.

Step-by-step explanation:

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Answer:

H0: p = 0.44, Ha: p ≠ 0.44

Step-by-step explanation:

The following information is mentioned

44% of the US adult population would never smoked cigarettes so that means the proportion would be

= 44 ÷ 100

= 0.44

Now we have to check the test whether this change represent increase or decrease

So the hypothesis is

\(H_o: P=0.44\)

\(H_1: P \neq 0.44\)

The two tailed means

\(P < 0.44 \, \, or \, \, P> 0.44 )\)

Answer:

42/11

Step-by-step explanation:

11/7 = 6/v

cross multiply:

11v = 6x7 = 42.

v = 42/11 ≈ 3.81

Answer:

417

Step-by-step explanation:

trust me

The defective bulbs in the entire shipment can be 417.

Proportion is a mathematical comparison between two numbers.  According to proportion, if two sets of given numbers are increasing or decreasing in the same ratio, then the ratios are said to be directly proportional to each other.

Given that, a random sample of 60 was taken from a shipment of 12,500 light bulbs, there were 2 defective bulbs in the sample.

We need to find how many defective bulbs would you expect in the entire shipment,

Let there be x defective bulbs in the sample.

using the concept of proportionality,

2 / 60 = x / 12500

x = 417

Hence, the defective bulbs in the entire shipment can be 417.

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Answer: 285

Step-by-step explanation:

Jared = 194

Matthew=(194)(3)=582

Gary=582-297=285

Fewer means Substraction

Gary will sell 285 chocolate bars

The value of the missing data point is 10. Option C

The data set has 8 data points, and the median is given as 12. The median is the middle value when the data points are arranged in ascending or descending order.

Let's arrange the data set in ascending order:

6, 8, ?, 8, 14, 15, 16, 18

Since the median is 12, it should be the fourth data point when arranged in ascending order. Therefore, the missing data point must be the fourth value in the sorted data set.

From the given options, the only whole number that could fit as the fourth value in the data set is 10.

Thus, the value of the missing data point is C. 10.

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The absolute value function that matches the graph is given as follows:

y = -|x + 1| + 1.

An absolute value function of vertex (h,k) is defined as follows:

y = a|x - h| + k.

In which a is the leading coefficient.

The coordinates of the vertex in this problem are given as follows:

(-1, 1).

Hence:

y = a|x + 1| + 1.

The function is reflected over the x-axis with a slope of -1, hence the leading coefficient a is given as follows:

a = -1.

Thus the function is:

y = -|x + 1| + 1.

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Answer:

2

Step-by-step explanation:

Step 1 write the equation: y=3x-1

Step 2 Plug 1 in: y=3(1)-1

Step 3 Multiply 3 and 1: y=3-1

Step 4 Subtract 3 from 1: y=2

Answer:

-4

Step-by-step explanation:

The actual answer is -4! Hope that helps.

Answer:

20 oz

Step-by-step explanation:

12 + 20 = 32

32 to 20 is equal to 8 to 5

She pulled out 91.2 dollars

\( \huge \purple{\tt{Answer:}} \)

Area of a triangle = \( \sf{{\dfrac{1}{2}} \times base \times height} \)

\( \implies{\dfrac{1}{2}} \times 6 \times height = 36 \)

\(\implies height={ \dfrac{{\bcancel{36}^6}\times{2}}{{ \bcancel6}}} \)

\( \implies height = 12~m \)

Using the normal distribution, it is found that:

a) 4.75% of drivers have a reaction time greater than 1.8 seconds.

b) The reaction time is of at least 1.73 seconds.

In a normal distribution with mean \(\mu\) and standard deviation \(\sigma\), the z-score of a measure X is given by:

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

In this problem, the mean and the standard deviation are given by, respectively:

\(\mu = 1.5, \sigma = 0.18\)

Item a:

The proportion is one subtracted by the p-value of Z when X = 1.8, hence:

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

\(Z = \frac{1.8 - 1.5}{0.18}\)

\(Z = 1.67\)

\(Z = 1.67\) has a p-value of 0.9525.

1 - 0.9525 = 0.0475 = 4.75%.

4.75% of drivers have a reaction time greater than 1.8 seconds.

Item b:

The reaction time is of at least X seconds, in which X is the 90th percentile, that is, X when Z = 1.28, hence:

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

\(1.28 = \frac{X - 1.5}{0.18}\)

\(X - 1.5 = 1.28(0.18)\)

\(X = 1.73\)

The reaction time is of at least 1.73 seconds.

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Answer:

The product of two numbers can be written as "x" and "y", and this product is multiplied by 7. Then, five is divided by "z" which is multiplied by 3. So, the answer is 7(xy) - 5/3z.

Step-by-step explanation: