Cross section of a metal ingot is a trapezoid the cross section has an area of 39 square cm the top base of the cross section is 12 CM the length of the bottom base is 2 cm greater than the top base how tall is the Metal Ingot explain

Answers

Answer 1
The area of a trapezoid is given by the formula
  A = (1/2)(b₁ +b₂)×h
Fill in the given information and solve for h.
  39 cm² = (1/2)(12 cm +(12 cm +2 cm))×h
  39 cm²/(13 cm) = h = 3 cm

The height of the metal ingot is 3 cm.

Related Questions

The beginning balance in Cash was $3,500. Additional cash of $2,000 was received. Checks were written totaling $2,500. The cash balance is Question 3 options: $2,000. $6,000. $4,500. $3,000.

Answers

3500+2000 = $5500
5500-2500 = $3000 so it would be 3000
the answer is. $3000

A dog kennel uses 90 lb of dog food per day. How many pounds are used in a year?

Answers

32850 pounds are used in a year.
The kennel would use 32850lbs in a year.

SCIENCE HELP 10 POINTS!!!!!


The greenhouse effect traps heat near earth's surface. Greenhouse gases in the atmosphere—carbon dioxide, water vapor, methane, and nitrous oxide—allow the shorter waves of ultraviolet radiation from the sun to enter earth's lower atmosphere. However, these gases do not allow the longer wavelengths of infrared radiation to pass back out to the outer atmosphere. The result is that the lower atmosphere heats up.This result happens naturally, but it can be accelerated by human activities. Since the late 1800s, human activity has greatly altered the amount of greenhouse gases that enter the atmosphere. Burning fossil fuels, farming, and clearing forests, as well as industry, have all contributed to increases of carbon dioxide (CO2), methane, nitrous oxide, and other greenhouse gases in the atmosphere.The result is that temperatures in the troposphere have gone up. Many scientists identify this increase in greenhouse gas emissions as contributing directly to global warming. This suggests that human activity has had an impact on the global climate.

The author argues that in modern times, the greenhouse effect *

A.helps keep the Earth warm

B.has increased because of human activity

C.is in a natural cycle of changing

D.has changed local weather patterns

Answers

D it is changing local weather patterns

C.is in a natural cycle of changing


Choose the equation that represents the line passing through the point (-3,-1) with a slope of 4

Answers

It might look like one of ...
  y +1 = 4(x +3) . . . . . . point-slope form
  y = 4(x +3) -1 . . . . . .. another point-slope form
  y = 4x +11 . . . . . . . . . slope-intercept form
  4x -y +11 = 0 . . . . . . . general form
  4x -y = -11 . . . . . . . . . standard form

four friends share 3 fruits bars equally how much does each friend get

Answers

3/4 = 0.75

each friend gets 0.75 of a bar
They each would get 3/4 

The sides of a rectangle are in the ratio of 4:5. If the width is 28 in., find the length, the perimeter, and the area of this rectangle.

Answers

If the width is 28 inches, then divide that by 4 and you get 7. You multiply that by 5 to get the length. That would be 35. Just to check, you know that the width 28 and length 35 are in ratio 4:5 if you divide by 7. The perimeter would be 2(35+28)=63*2=126. So the perimeter is 126. The area would be 35*28 which is 980. To sum up, the answers are as follows.

Length: 35 in
Perimeter: 126 in
Area: 980 inches squared.

Exercise 3.8 asked you to write a method called quadratic that solves quadratic equations and prints their roots. recall that a quadratic equation is a polynomial equation in terms of a variable x of the form a x2 + b x + c = 0. the formula for solving a quadratic equation is:

Answers

Given a quadratic equation which is a polynomial equation in terms of a variable x of the form ax^2+bx+c=0. The quadratic formula for solving a quadratic equation is:

x=[-b+/-√(b²-4ac)]/2a

where a,b and c are the respective coefficients as indicated in the quadratic form. 

A cleaner recommends mixing 1 1/2 cup of cleaner for every 12 cups of water. What is the ratio of cleaner to water in simplest form?

Answers

The ratio of cleaner to water will be given by:
cleaner:water
1 1/2:12
simplifying the above we get:
3/2:12
multiplying both sides by 2 we get:
2×3/2:12×2
3:24
hence the answer is 3:24

A rancher has 300 feet of fencing to enclose a pasture bordered on one side by a river. the river side of the pasture needs no fence. find the dimensions of the pasture that will produce a pasture with a maximum area.

Answers

I think your best answer is a pasture that is 75 feet by 150 feet, which will give you 11,250 sq ft of pasture

Which figure shows how a shape can be rotated about an axis to form the given object?

Answers

The answer is as shown in the attachment which is the first diagram (on the left) on the second row which is highlighted in the attachment

That is the only figure which when rotated about the axis will form a cylindrical form as required.

The top two will form into a solid sphere and the last would form into a solid cylinder and not the one as required.


Answer:

Option C.

Step-by-step explanation:

In this question we will go by every option.

Option A). When a circle showing in the figure is rotated then a hollow ring will be formed.

Option B). In this option when a circle like structure with two layers is rotated about an axis it will forms a ring with two layers. Inner part of the ring will be empty.

Option C). In this option when a vertical strip is rotated by the axis, it will form the cylinder similar to the object shown in the figure.

Option D). In this option when a strip attached to the axis is rotated, a sold cylinder is formed.

Therefore Option C. is the correct option.

A plane left on time at noon on Monday. It arrived at its destination at 8:16PM the same day, which was 16 minutes late. On average, how many seconds did the plane fall behind every fifteen minutes?

Answers

The plane arrived on 8:16 pm and was 16 minutes late. This means the arrival time of plan was 8:00 pm. The plane left on noon i.e. 12:00 pm.

So total expected time of the journey was = 8 hours

8 hours means 8 x 60 minutes = 480 minutes

480 minutes can also be seen as 32 groups of 15 minutes each as 15 x 32 = 480.

In 32 groups of 15 minutes each the plane was late by a total of 16 minutes.

So, in every 15 minute the plane was late by 16/32 minute = 0.5 minute

Thus, we can conclude that on average the plane fall behind 0.5 minutes in every 15 minutes

To find the average delay per fifteen-minute interval, convert the total delay of 16 minutes into seconds, then divide by the number of fifteen-minute intervals between noon and 8:00 PM, yielding an average delay of 30 seconds per interval.

The question asks us to calculate how much time the plane fell behind schedule, on average, every fifteen minutes. Since the plane arrived 16 minutes late, we first need to convert this delay into seconds: 16 minutes is equal to 960 seconds (16 minutes  imes 60 seconds/minute). To calculate the plane's average delay per fifteen-minute interval, we divide the total delay in seconds by the total number of fifteen-minute intervals between noon and the expected arrival time at 8:00 PM, which is 32 intervals (8 hours  ×4 intervals/hour). Therefore, the average delay per interval is 960 seconds \/ 32 intervals = 30 seconds per interval.

What is the degree measure of angle A?_____ degrees

Answers

Hello!

Vertical angles are congruent

Angle A is vertical angles to the angle that measures 80

The answer is 80

Hope this helps!

How many hours minutes and seconds are in 2165 days?

Answers

there is 24 hours in a day

2165 days x 24 hours = 51,960 total hours

there are 60 minutes per  hour

51,960 x 60 = 3,117,600 total minutes

there are 60 seconds per minute

3,117,600 x 60 = 187,056,000 total seconds

14 m equals how many mm

Answers

14 m is 14000 mm..........
14 m is 14000 mm the conversion calculator says it all, good luck :-)
xoxo-Sky

There are 12 people having lunch.Each person wants 1/3 of a sub sandwich.How many whole sub sandwiches are needed ?use models to show answer.

Answers

12 people * (1/3 sandwich per person) = 4 sandwiches
3 and 2/3. 4 if the looking for a whole number

use the Pythagorean theorem to determine if a triangle with sides lengths 2 feet 4 ft 5 ft is a right triangle

Answers

So, here's the equation to determine this:
2^2 + 4^2 = 5^2
Multiply:
4 + 16 = 25
20 = 25
This is not true.
This is not a right triangle

CC=\frac{5}{9}(F - 32)

The equation above shows how temperature F, measured in degrees Fahrenheit, relates to a temperature C, measured in degrees Celsius. Based on the equation, which of the following must be true?

A temperature increase of 1 degree Fahrenheit is equivalent to a temperature increase of 5/9 degree Celsius.

A temperature increase of 1 degree Celsius is equivalent to a temperature increase of 1.8 degrees Fahrenheit.

A temperature increase of
5/9 degree Fahrenheit is equivalent to a temperature increase of 1 degree Celsius.

A) I only
B) II only
C) III only
D) I and II only

Answers

The answer would be D I and II only

My work:
The only answer that has both statement I and statement II as true is D, but if you have time and want to be absolutely thorough, you can also check to see if statement III is true 
The answer would be D! Hope this helped you out.

The average weekly income of teachers in one school district is $750 with a standard deviation of $85. Find the percentage of teachers earing more than $825 a week?

Answers

Point estimate (average) = $750
Standard deviation = $85
P(X>$825) = ?

Z = (X-mean)/Standard deviation = (825-750)/85 ≈ 0.88

From Z-table, P(X=825) = 0.8106

Therefore,
P(X>$825) = 1 - P(X=$825) = 1-0.8106 = 0.1894 = 18.94%

Percentage of teachers earning more than $825 is 18.94%.

A test is worth 50 points. Multiple-choice questions are worth 1 point, and short-answer questions are worth 3 points. If the test has 20 questions, how many multiple-choice questions are there?
A. t for test, q for questions
B. m for multiple choice, s for short answer
C. s for short answer, t for test
D. p for points, m for multiple choice

apex mcr

Answers

Use the following formula to find the answer to this question: 

S * Q + M * Q = P 

Representations: 

S = The amount of points for short-answer questions. 

M = The amount of points for multiple-choice questions. 

Q = Number of questions for each of the type of questions that add up to the total number of questions on the test (20 questions). 

P = Total points on the test. 

Since there is a total of 50 points on the 20 question test, you would need to divide up the amount of questions there are for each of the type there are on the test, short-answer, and multiple-choice. 

3 * Q + 1 * Q = P 

Now find how many of the type of questions there are out of 20 questions on the test that would add up to the total number of points on the test. 

3 * Q + 1 * Q = 50 

(15 + 5 = 20 questions on the test, 15 and 5 can be used for the number of questions for each type of question on the test). 

3 * 15 + 1 * 5 = 50 

45 + 5 = 50 

50 = 50 

So, your total number of multiple choice questions are: 5. 
And, your total number of short answer questions are: 15. 

I would go with D. for your answer. I may be wrong. 

I hope this helps. 

~ Notorious Sovereign

Suppose that 5 green balls and 12 purple balls are placed in an urn. two balls are then drawn in succession. what is the probability that the second ball drawn is a purple ball if the first ball is replaced before the second is drawn?

Answers

If the first ball is replaced and that we are not concern about the color of the first ball, then there is no concern for the first ball at all. 

Total number of balls = 5 + 12 = 17
Total number of purple balls = 12

P(second one is purple) = 12/17

Answer: 12/17

Uisng the concept of probability, the probability that the second ball drawn is purple is 12/17

Given the Parameters :

Number of green balls = 5 Number of purple balls = 12

Total number of balls = 12 + 5 = 17

Recall :

Probability = required outcome / Total possible outcomes

Since selection is made with replacement :

P(purple) = number of purple balls / total number of balls

P(purple) = 12/17

Therefore, the probability of drawing a purple ball is 12/17

Learn more : https://brainly.com/question/18796573

how much tax you need to pay on a taxable income of 40,000

Answers

It depends on if you are filing as a single person or married (or jointly), and for which year you are referring to:

2017 RETURNS FILED IN 2018:

Single earning in this tax bracket $37,951 to $91,900, the tax rate is 25%.

Married/Joint earning in this tax bracket $18,651 to $75,900, the tax rate is 15%.


2018 RETURNS FILED IN 2018:

Single earning in this tax bracket $38,701 to $82,500, the tax rate is 22%.

Married/Joint earning in this tax bracket $19,051 to $77,400, the tax rate is 12%.


Hope this helps! :)

Lindsay's watering can holds 12 quarts of water. She uses 1 pint of water on each of her flowers.

How many flowers can she water?

Answers

1 quart = 2 pints

12 quarts x 2 = 24 pints

1 flower = 1 pint

 she can water 24 flowers

She can water 24 flowers using 12 quarts.

1 quart consists of how many pints?

1 quart consists of 2 pints

So, 12 quarts = 12*2 =24 pints

It is given that she uses 1 pint of water on each flower.

So, 24 pints can be used to water =24*1 =24 flowers.

Therefore, She can water 24 flowers using 12 quarts.

To get more about quarts and pints visit:

https://brainly.com/question/973474

Let , 4 ,− 7 be a point on the terminal side of θ . find the exact values of cos θ , csc θ , and tan θ .

Answers

Ok, you are given a point and you need to find the exact values for [tex]cos \theta csc \theta & tan \theta[/tex]

First thing first. We need to see if we are working with a unit circle and find the radius.

How to tell if we are working with a unit circle?
We know [tex]x^2 + y^2 = r^2[/tex] is a circle.

We know that to find the radius we can use the following formula:
[tex]r^2 = \sqrt{x^2 + y^2}[/tex]

If [tex]r^2 = \sqrt{x^2 + y^2} = 1[/tex] we are working with a unit circle.

Lets see if it = 1.
[tex]r^2 = \sqrt{4^2 + -7^2}[/tex]
[tex]r^2 = \sqrt{16 + 49}[/tex]
[tex]r^2 = \sqrt{65}[/tex]

Square both sides now
[tex]\sqrt{r^2} = \sqrt{\sqrt{65}}[/tex]
[tex]r = \pm 65^{\frac{1}{4}}}[/tex]

Since we squared, we have a + and a - but we disregard the - because we do not have - radii 
[tex]r = 65^{\frac{1}{4}}}[/tex]
We can also say
[tex]r = \sqrt[4]{65}[/tex]

Ok, since r does not equal 1, we are not working with a unit circle but we have found r, which is our radius.

Now that we know the value of r, which is [tex]r = 65^{\frac{1}{4}}}[/tex], we need to look at the identities of cos, csc and tan.


The identities:
[tex]cos \theta = \frac{x}{r}[/tex]
[tex]csc \theta = \frac{1}{y}[/tex]
[tex]tan \theta = \frac{y}{x}[/tex]

Now that we know their identities and know the radius of our circle, we can find the exact values of cos, csc and tan.

[tex]cos \theta = \frac{x}{r} = \frac{4}{65^{\frac{1}{4}}}[/tex] 
[tex]csc \theta = \frac{1}{y} = \frac{1}{-7}[/tex]
[tex]tan \theta = \frac{y}{x} = \frac{-7}{4}[/tex]

The exact values for cos, csc and tan given the point (4,-7) are:
[tex]cos \theta = \frac{4}{65^{\frac{1}{4}}}[/tex] 
[tex]csc \theta = \frac{1}{-7}[/tex]
[tex]tan \theta = \frac{-7}{4}[/tex]



The exact values are [tex]\cos \theta = \frac{4\sqrt{65}}{65}[/tex], [tex]\csc \theta = \frac{\sqrt{65}}{4}[/tex] and [tex]\tan \theta = -\frac{7}{4}[/tex], respectively.

Let be a Point of the form [tex](x,y)[/tex] that is the Terminal Side of angle [tex]\theta[/tex], in sexagesimal degrees. By Trigonometry, we know that the Cosine, Cosecant and Tangent of the Angle are, respectively:

[tex]\cos \theta = \frac{x}{\sqrt{x^{2}+y^{2}}}[/tex] (1)

[tex]\csc \theta = \frac{\sqrt{x^{2}+y^{2}}}{y}[/tex] (2)

[tex]\tan \theta = \frac{y}{x}[/tex] (3)

If we know that [tex]x = 4[/tex] and [tex]y = -7[/tex], then the exact value of all the trigonometric relations are:

[tex]\cos \theta = \frac{x}{\sqrt{x^{2}+y^{2}}}[/tex]

[tex]\cos \theta = \frac{4}{\sqrt{4^{2}+(-7)^{2}}}[/tex]

[tex]\cos \theta = \frac{4\sqrt{65}}{65}[/tex]

[tex]\csc \theta = \frac{\sqrt{x^{2}+y^{2}}}{y}[/tex]

[tex]\csc\theta = \frac{\sqrt{4^{2}+(-7)^{2}}}{4}[/tex]

[tex]\csc \theta = \frac{\sqrt{65}}{4}[/tex]

[tex]\tan \theta = \frac{y}{x}[/tex]

[tex]\tan \theta = -\frac{7}{4}[/tex]

The exact values are [tex]\cos \theta = \frac{4\sqrt{65}}{65}[/tex], [tex]\csc \theta = \frac{\sqrt{65}}{4}[/tex] and [tex]\tan \theta = -\frac{7}{4}[/tex], respectively.

Please see the related question for further details: https://brainly.com/question/15225546

If events A and B are mutually exclusive, find P(A/B)
A. P(A)
B. 1
C. 0
D. P(A)/P(B)

Answers

I'm assuming you're asked to find [tex]\mathbb P(A\mid B)[/tex], not [tex]\mathbb P\left(\dfrac AB\right)[/tex] (which is nonsense as far as I can tell).

By definition,

[tex]\mathbb P(A\mid B)=\dfrac{\mathbb P(A\cap B)}{\mathbb P(B)[/tex]

We're told the two events are mutually exclusive, which means their intersection is disjoint and the probability of their intersection is 0. So the answer is C.

Suppose that the mean time for a certain car to go from 0 to 60 miles per hour was 8.4 seconds. suppose that you want to test the claim that the average time to accelerate from 0 to 60 miles per hour is less than 8.4 seconds. what would you use for the alternative hypothesis?

Answers

9seconds!!!!!!!!!!!!!!!!!!!

A jar contains 8 large red​ marbles, 5 small red​ marbles, 7 large blue​ marbles, and 4 small blue marbles. if a marble is chosen at​ random, which of the conditional probabilities is​ larger, ​p(red​|large​) or ​p(large​|red​)?

Answers

8 large red, 5 small red, 7 large blue, 4 small blue:

totally =  24 marbles

P(red)= 13/24

let A red and B large

P(A/B)= P(A∩B)/P(B)

P(B)= 15/24 =.625

P(A∩B)= 8/24 = .333

P(A/B) =.333/.625 =.533

P(B/A) =.625/.333= 1.875 


so the probability of p(large/red) is larger.




What is the area of this figure?

Answers

As stated by @mathmate, the figure can be split into two rectangles (see picture).  Then, we can find the total area by adding the areas of the individual rectangles.  The area of the first rectangle is calculated by multiplying its length times width:

6 * 5 = 30

The area of the second rectangle is calculated by multiplying its length and width:

12 * 4 = 48

Now, we can add the areas to find the total area of the figure:

30 + 48 = 78

The figure's area is 78 cm².

If the graph of the function h is defined by = h(x)+x^2+9 is translated vertically downward by 9 units, it becomes the graph of a function g. Find the expression for
gx

Answers

The answer is g(x) = x².
Solution:
The graph of h(x) = x²+9 translated vertically downward by 9 units means that each point (x, h(x)) is shifted onto the point (x, h(x) - 9), that is, 
     (x, h(x)) → (x, h(x) - 9)
The translated graph that represents the function is defined by the expression for g(x):
     g(x) = h(x) - 9 = x² + 9 - 9 = x²

h(x) = x²+9 → g(x) = x² shows that the graph of the equation g(x) = x² moves the graph of h(x) = x²+9 down nine units.

Which of the following is the correct simplification of 7•4²÷ 8 -12

Answers

The answer you are looking for would be 2.

This can be found by solving with PEMDAS. First, you do the 4^2 (4*4), which equals 16. Next, you multiply 16 by 7, to get 112. Then, you'd divide 112 by 8. This gives you 14. Finally, subtract 12 from 14 to get your final answer of 2.

I hope this helps!
I’m not sure but I tried working it out and I got 2.26272819199.. so it should be 2

at 6am the temperature is -5°f the temperature rises 6°f by noon what is the temperature at noon?

Answers

By noon, it should be 1 degree Fahrenheit. 

(-5)+6=1
If you use a number line, and start from -5 and "count right 6 times", you should get 1 degree Fahrenheit.
Hope this helped!!! c:
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Compare and contrast between scientific theory,scientific law and scientific hypothesis robert gets injured during a football game. athletic trainer can do which of the following according to their scope of practicea. diagnose b. evaluatec. x rayd. suspect Question 1 how much water would you add to 175 ml of 6.00 m hydrochloric acid to prepare a 2.00 m solution of this acid? 350 ml 700. ml 58.3 ml 525 ml none of the above Which ancient Roman structure was built under the direction of Vespasian, attempting to entertain the populace who suffered under his predecessor, Nero?ParthenonColosseumMonticelloChrysler Building Where are most of the world's earthquakes and volcanoes located? Which statement correctly describes an atom of the element helium? A. An atom of helium has eight electrons in its outer energyB. An atom of helium most similarly behaves like an atom of hydrogen since it is in the same period. C. An atom of helium has a full outer energy level and is therefore unusually reactive.D. An atom of helium has its valence electrons in its first energy level. Ken's cafe serves hot cocoa.each serving has 9 grams of chocolate.how many grams of chocolate are in 8 servings of hot cocoa? For the equation, y= -x - 4, tell whether its graph passes through the first quadrant. Explain how you know.A.) No; for x0 some y-values are positive.C.) No; for x>0 the y-values are negative.D.) Yes; for x What was the MAIN reason Richard Nixon traveled to China in 1972? A)to oversee the end of China's war with Taiwan B)to prevent China from boycotting the Summer Olympics C)to negotiate the release of 52 Americans taken hostage there D)to normalize relations between the U.S. and China's government A muon is traveling at 0.995c. what is its momentum? (the mass of such a muon at rest in the laboratory is 207 times the electron mass.) What claim by Adolf Hitler showed his anti-Semitic beliefs?A. Hitler believed that the Jews were strong nationalists.B. Hitler believed that the Jews had been treated as ethnic outsiders in Europe.C. Hitler claimed that Jews opposed German ethnic solidarity.D. Hitler claimed that the Jewish people were the greatest threat confronting Germany. Tamika has $200.00 in her checking account. She writes checks for $45.00 and $30.00. She makes an ATM withdrawal of $50.00. What is her balance? Na2SO4 is dissolved in water to make 450 mL of a 0.250 M solution. What is the molar mass of Na2SO4, and how many moles are needed? How did things change for women in the immediate postwar period ww1? 250 tickets are sold at a church fundraiser. if sara buys 15 tickets the probability the probability that she will win the prize quilt is Which sentence shows the correct way to capitalize the underlined titles? a. My grandparents call my great-grandfather the general because he fought in the Civil War. b. My Grandparents call my Great-grandfather the General because he fought in the Civil War. c. My Grandparents call my great-grandfather the General because he fought in the Civil War. d. My grandparents call my great-grandfather the General because he fought in the Civil War. Creep is very slow movement of sediment down a slope. t or f In the lewis structure of ch3oh, how many bonding pairs of electrons are there? How many terms are in the arithmetic sequence 6, 2, 2, , 102?Hint: an = a1 + d(n 1), where a1 is the first term and d is the common difference 27 28 29 30 Kelsy contracted an infection caused by a pathogen from the genus Trichophyton. Her doctor gave her a medicated cream to rub on the area and told her to keep it as dry as possible.