The formula P=2L+2W represents the perimeter of a rectangle. In this formula, L is the length of the rectangle and w is the width. Solve the formula for W

Answers

Answer 1

Answer:

Answer: P/2 - L = W

Step-by-step explanation:

P = 2L + 2W. We are isolating W. Subtract 2L from both sides to isolate the term first
P - 2L = 2W. Divide by 2 on both sides to isolate W.
P/2 - L = W

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Materials: Tall clear drinking glass or vase At least four of the following liquids: Fresh water Salt water Vegetable oil Rubbing alcohol Dish soap Honey Corn syrup Milk Maple syrup At least three different small items of your choice, such as: Ping pong ball Small screw, bolt, or nut Popcorn kernel Peanut Blueberry Grape Cherry tomato Instructions: Select four liquids and predict how you think they compare in density by ranking them from most dense to least dense in the data table below. Measure out ¼ cup volume of each liquid, and pour them one at a time into the clear glass or vase. Record your observations in the lab worksheet. Gently add the first small item to the liquids, and record your observation of where it settles. Repeat with the other small items. Clean up all lab materials (the liquids can be poured down the sink), and complete the lab worksheet. Data Table: Prediction: Rank the four liquids from lowest density (top) to highest density (bottom) Observation: Rank how the four liquids really compare, from lowest density (top) to highest density (bottom) Observations: What objects did you place in the liquid, and where did each settle? Object Layer where it settled Observations and Conclusions: Define density, and describe how this activity helps you compare the density of four different liquids without making mass measurements. How did the observations compare to your predictions? Did any of the results surprise you? How would the density of water change if you measured out ½ cup instead of ¼ cup? Explain your answer in complete sentences.

Please answer this correctly without making mistakes

Answers

Answer:

$\boxed{\sf 319:3388}$

Step-by-step explanation:

Total number of tickets sold = 3388

Total number of coach tickets = 3069

Total number of first-class tickets = Total number of tickets sold - Total number of coach tickets

= 3388 - 3069

= 319

$\therefore$

Ratio of the number of first-class tickets to the total number of tickets = 319:3388

Answer:

$\boxed{ 319 : 3388}$

Step-by-step explanation:

Given, Total no. of tickets sold = 3388

Total no. of coach tickets = 3069

Then, No. of first class ticket:

= 3388 - 3069

= 319

We need to find the ratio of first-class tickets to the total number of tickets: 319:3388

Use the rules for logarithms and exponents to write this equation in logarithmic form.?For the equation K = Ae^(-ΔH/RT), solve for ln K using logarithms and exponents.

Answers

Answer:

$ln K = ln (A) -(\Delta H)/(RT)$

Step-by-step explanation:

For this case we have the following expression:

$K = A e^{-(\Delta H)/(RT)}$ (1)

And we want to find the value of ln K. If we apply natural log on both sides of the equation (1) we got:

$ln K = ln(A e^{-(\Delta H)/(RT)})$

Using the following property:

$ln(xy) = ln (x) + ln(y)$ for x and y real numbers, x>0, y>0, then we have:

$ln K = ln (A) + ln (e^{-(\Delta H)/(RT)})$

Now since the natural log and the exponentiation are inverse operations we have this:

$ln K = ln (A) + (-(\Delta H)/(RT))$

And then the final expression for ln K is :

$ln K = ln (A) -(\Delta H)/(RT)$

Answer below
5*____= 1

Answers

Answer:

Step-by-step explanation:

just keep the first number and flip the sign and it would be 1 i think idrk

In determining automobile-mileage ratings, it was found that the mpg (X) for a certain model is normally distributed, with a mean of 33 mpg and a standard deviation of 1.7 mpg. Find the following:__________. a. P(X<30)
b. P(28c. P(X>35)
d. P(X>31)
e. the mileage rating that the upper 5% of cars achieve.

Answers

The upper 5% of cars have a mileage rating of 35.805 mpg

What is z score?

Z score is used to determine by how many standard deviations the raw score is above or below the mean. It is given by:

z = (raw score - mean) / standard deviation

Given; mean of 33 mpg and a standard deviation of 1.7

a) For < 30:

z = (30 - 33)/1.7 = -1.76

P(x < 30) = P(z < -1.76) = 1 - 0.8413 = 0.0392

b) For < 28:

z = (28 - 33)/1.7 = -2.94

P(x < 28) = P(z < -2.94) = 0.0016

c) For > 35:

z = (35 - 33)/1.7 = 1.18

P(x > 35) = P(z > 1.18) = 1 - P(z < 1.18) = 1 - 0.8810 = 0.119

d) For > 31:

z = (31 - 33)/1.7 = -1.18

P(x > 31) = P(z > -1.18) = 1 - P(z < -1.18) = 0.8810

e) The upper 5% of cars achieve have a z score of 1.65, hence:

1.65 = (x - 33)/1.7

x = 35.805 mpg

The upper 5% of cars have a mileage rating of 35.805 mpg

Find out more on z score at: brainly.com/question/25638875

Answer:

a) P(X < 30) = 0.0392.

b) P(28 < X < 32) = 0.2760

c) P(X > 35) = 0.1190

d) P(X > 31) = 0.8810

e) At least 35.7965 mpg

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = (X - \mu)/(\sigma)$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this question, we have that:

$\mu = 33, \sigma = 1.7$

a. P(X<30)

This is the pvalue of Z when X = 30. So

$Z = (X - \mu)/(\sigma)$

$Z = (30 - 33)/(1.7)$

$Z = -1.76$

$Z = -1.76$ has a pvalue of 0.0392.

Then

P(X < 30) = 0.0392.

b) P(28 < X < 32)

This is the pvalue of Z when X = 32 subtracted by the pvalue of Z when X = 28. So

X = 32

$Z = (X - \mu)/(\sigma)$

$Z = (32 - 33)/(1.7)$

$Z = -0.59$

$Z = -0.59$ has a pvalue of 0.2776.

X = 28

$Z = (X - \mu)/(\sigma)$

$Z = (28 - 33)/(1.7)$

$Z = -2.94$

$Z = -2.94$ has a pvalue of 0.0016.

0.2776 - 0.0016 = 0.2760.

P(28 < X < 32) = 0.2760

c) P(X>35)

This is 1 subtracted by the pvalue of Z when X = 35. So

$Z = (X - \mu)/(\sigma)$

$Z = (35 - 33)/(1.7)$

$Z = 1.18$

$Z = 1.18$ has a pvalue of 0.8810.

1 - 0.8810 = 0.1190

P(X > 35) = 0.1190

d. P(X>31)

This is 1 subtracted by the pvalue of Z when X = 31. So

$Z = (X - \mu)/(\sigma)$

$Z = (31 - 33)/(1.7)$

$Z = -1.18$

$Z = -1.18$ has a pvalue of 0.1190.

1 - 0.1190 = 0.8810

P(X > 31) = 0.8810

e. the mileage rating that the upper 5% of cars achieve.

At least the 95th percentile.

The 95th percentile is X when Z has a pvalue of 0.95. So it is X when Z = 1.645. Then

$Z = (X - \mu)/(\sigma)$

$1.645 = (X - 33)/(1.7)$

$X - 33 = 1.645*1.7$

$X = 35.7965$

At least 35.7965 mpg

Rita earns $18.00 per hr. If she gets a 6% raise, what will be her new hourly wage?

Answers

Answer:

19.06

Step-by-step explanation:

Take her wage and multiply by the percent increase

18*.06 =1.08

Add this to her original wage

18+1.06

19.06 is the new wage

A rectangular prism is 3 meters long, 4 meters wide, and has a total surface area of 94 square meters. What is its height?3 m
4 m
5 m
6 m

Answers

S = 2lw + 3lh + 2wh
94 = 2(3)(4) + 2(3)(h) + 2(4)(h)
94 = 2(12) + 2(3h) + 2(4h)
94 = 24 + 16h + 8h
94 = 24 + 14h
- 24 - 24
70 = 14h
14 14
5 = h

The answer is C.

Answer: answer is C

Step-by-step explanation:

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