Mathematics College

Find the surface of the rectangular prism

Answers

Answer 1

Answer:

yes multiply the 3 sides 3 times together with the number 2

Related Questions

What is the slope-intercept equation for this line?
--1
y = [?]=x +
Enter the correct
symbol,+ or -.
-2
-3

Answers

Answer:

y = -1/2x - 2

Step-by-step explanation:

Slope Intercept form: y=mx+b

You need to find the slope and y-intercept.

(0,-2) is the y-intercept which is the point on the y-axis that is intersected by the linear equation which is our slope line.

Now, we need to find our slope.

*This line is a negative slope*

Starting at our y-intercept [ (0,-2) ] we need to go to a point where the line intersects.

The red dot on the coordinate plane clearly represents it.

(2,-3) is the red point in which we need to go down 1 and over 2 to get there.

So our slope should be -1 / 2

Lastly, write in slope-intercept form:
y = -1/2x - 2

Cheryl and her sister Diane walk to school along the same route. Cheryl walks at an average of
80 steps per min while Diane walks at an average of 90 steps per min. Cheryl takes steps
of 81 cm each. She takes 12 min to walk to school.
a) What is the distance between their house and the school (Give your answer in metres) ?

metres
b) If each of Diane's steps in 72 cm, how long does Diane take to walk to school?

minutes
c) If Diane takes 16 min to walk to school, how long is each of her steps?

Answers

The distance between their house and the school from the information given will be 777.60 meters.

How to calculate the distance?

The distance between their house and the school will be:

= 80 × 81 × 12

= 77760cm

= 777.60 meters.

When Diane takes 16 min to walk to school, the length of her steps will be:

= 77760/(16 × 90)

= 54 cm

Learn more about distance on:

https://brainly.com/question/17273444

#SPJ1

If the sides of a triangle are 8 and 11 in units and the angle between them is 37 degrees, then the length of the third side is: Options :
A 6.1 B 6.4 C 6.7 D 6.9

Answers

The question is an illustration of the laws of cosine, the length of the third side is 6.7 units

How to determine the third side?

The measure of the third side is calculated using the following law of cosine

a^2 = b^2 + c^2 - 2bc * cos(A)

So, we have:

a^2 = 8^2 + 11^2 - 2 * 8 * 11 * cos(37)

Evaluate the expression

a^2 = 44.44

Take the square root of both sides

a = 6.7

Hence, the length of the third side is 6.7 units

#SPJ1

Answers

Answer:

76$

Step-by-step explanation:

114=.6y; y= original price

y=190, original price

190-114=76

What’s the median for 28,30,30,30,30,31,31,31,31,31,31,31,31

Answers

Answer:

Step-by-step explanation:

The median is the number that we find in the middle of the data.

So if we have a sequence of {1,2,3}

Then 2 is the median

If we have a sequence of {1,2,3,4,5}

Then 3 is the median

We look in the middle of 28,30,30,30,30,31,31,31,31,31,31,31,31

and we find 31 in the middle.

Note:

If the middle is something with 2 terms in the middle like

1,2,3,4

Then the median is the average of the two middle terms which is

(2+3)/2 = 2.5

3x-4=8 what does X equal to?

Answers

Hey there,

Solve the equation:

Answer :

x = 4 ✅

Explanations :

3x - 4 = 8

>> Add 4 to both sides :

3x - 4 + 4 = 8 + 4

3x = 12

>> Divide both sides by 3 :

3x/3 = 12/3

Therefore, your answer is x = 4

More about equations:

https://brainly.com/question/27460957

Have a good day ;)

Answer:

x = 4

Step-by-step explanation:

Given equation:

3x - 4 = 8

To determine the value of "x", we need to isolate the "x" variable and it's coefficient. This can be done by adding 4 to both sides of the equation.

⇒ 3x - 4 + 4 = 8 + 4⇒ 3x = 12

The next step in determining the "x" variable is to isolate the coefficient from the "x" variable. This can be done by dividing 3 both sides of the equation.

⇒ 3x/3 = 12/3⇒ x = 4

Therefore, the solution (x) is 4.

Find the measure of angle x in the figure below:

A triangle is shown. At the top vertex of the triangle is a horizontal line aligned to the base of the triangle. The angle formed between the horizontal line and the left edge of the triangle is shown as 56 degrees, the angle formed between the horizontal line and the right edge of the triangle is shown as 51 degrees. The angle at the top vertex of the triangle is labeled as y, and the interior angle on the right is labeled as 72 degrees. The interior angle on the left is labeled as x.

35°
47°
73°
78°

Answers

Answer:

I took the Test it is 72

Pendulum A is 20 cm long and has a 5 g mass on it. Pendulum B is 30 cm long and has a 10 g mass on it. Which one has a faster period?

Answers

The formula for the period T of a pendulum is T = 2π Square root of√L/g, where L is the length of the pendulum and g is the acceleration due to gravity.

Select the correct answer.
Which of these is a non-real complex number?

Answers

Answer:

Step-by-step explanation:

[tex]\dfrac 83 +\sqrt{-\dfrac 73}\\\\=\dfrac 83 + \sqrt{-1} \sqrt{\dfrac 73}\\\\=\dfrac 83 +i\sqrt{\dfrac 73}~~~~~~;\left[i =\sqrt{-1}\right]\\\\\text{It is now in the standard form of complex number (a+bi).}[/tex]

3 of 8
If x = -8 and y = 4, evaluate the
-
following expressions:
i) (4y)² - (2x)²=
ii) 4y²– 2x²=

Answers

Answer:

Step-by-step explanation:

i) (4*4)^2-(2(-8))^2=256-(16)^2=256-256=0

ii) (4*16)-2*(-8)^2=64- 2(16)= 64-32=32

can someone help me with this? please

Answers

Answer:

14.4 feet

Step-by-step explanation:

i need help asap please

Answers

Answer:

x = 52 due to vertical angle theorem

Step-by-step explanation:

Vertical angles mean that the angles are congruent.

If we know that one angle is 52 the other one shall be 52 as well because vertical angles state that ones that are directly across are congruent known as equal.

Find the length of the missing side of the right triangle.

Answers

Answer:

b=8

Step-by-step explanation:

Since this is a right triangle, we can use the Pythagorean theorem

a^2+b^2 =c^2 where a and b are the legs and c is the hypotenuse

6^2 + b^2 = 10^2

36+b^2 = 100

Subtract 36 from each side

b^2 = 100-36

b^2 = 64

Take the square root of each side

sqrt(b^2) = sqrt(64)

b = 8

Please help around 60 points

Answers

Answer:

i don't know do you play any games

The market sells 1 dozen bagels
for $7.00. The bagel shop sells
bagels for $0.60 each. Which is
the better buy?

Answers

Answer:

market

Step-by-step explanation:

Market

1 dozen bagels = 12 bagels

⇒ Cost per bagel = $7.00 ÷ 12 = $0.58 (nearest cent)

Bagel shop

Cost per bagel = $0.60

As $0.58 < $0.60 the market is a better buy

A Ferris wheel contains 16 cars evenly spaced on a circle with a radius of 20 feet. What is the distance between any two cars on the Ferris wheel?

Answers

Answer:

230.4

feet

Explanation:

arc length

circumference

fraction of circle

165

360

165

360

230.4

feet to nearest tenth

Answer:

Step-by-step explanation:

the answer is 22.5 but rounded to the nearest whole which is 23

what is the exact value of tan(19pi/12)

Answers

Answer:

the answer is -2-√3

Step-by-step explanation:

[tex] \tan( \frac{19\pi}{12} ) \\ \tan( \frac{19 \times 180}{12} ) \:\:we \: know \: that \: \pi = 180 \\ \\ \tan(285) \\ = - 2 - \sqrt{3} [/tex]

16/x 45/3 find the value of x round to the nearest tenth

Answers

Answer:

x would be equal to 1.1

Step-by-step explanation:

Step 1: Determine the value of x

I assume that the equation looks like this: 16/x = 45/3

Therefore, using the cross multiply method we can do (16*3) = (x*45)

This will give us 48 = 45x

Then we divide both sides by 45 so we can isolate x by itself

45x/45 = 48/45

x = 1.0667

Then we round to the nearest tenth

x = 1.0667

x = 1.1

Answer: x would be equal to 1.1

Answer:

x = 16/15, or (to the nearest tenth) x = 1.1

Step-by-step explanation:

Note: there must be an " = " sign between the two fractions:

16 45

------- = -------

x 3

Also note that 45/3 reduces to 15: 16/x = 15

Multiplying both sides by x yields 16 = 15x, so that x must be x = 16/15 = 1.1

please help with this

Answers

Answer:

Step-by-step explanation:

This is pretty straight forward. Here are the answers verified:

A. Incorrect. Pretty much not even close to 2°. If it was, then it would've been a very small triangle.B. Incorrect. It is kind of close to it, but it is not 28°. Once again, it would've been small.C. Correct. Angle just about right to reach 62°.D. Incorrect. This triangle would've been kind of big. Though it is not 88°, it is not big.

Correct choice is C.

There are 62 seats on a train. 31 of the seats are empty. What percentage of the seats on the train are empty?

Answers

Answer:

50%

Step-by-step explanation:

31/62 of the train seats are empty,meaning there is 50%

You measure 20 dogs' weights, and find they have a mean weight of 41 ounces. Assume the population standard deviation is 11.9 ounces. Based on this, what is the maximal margin of error associated with a 99% confidence interval for the true population mean dog weight.

Give your answer as a decimal, to two places

Answers

Answer:

(34.15, 47.85)

Step-by-step explanation:

[tex]n = (\frac{z*stddev}{ME} )^{2}[/tex]

stddev = 11.9

z = invNorm(

area = (1 + confidence interval)/2

mean = 0

stddev = 1

)

= invNorm(

0.995

)

≈ 2.576

n = 20

square root both sides

[tex]\sqrt{20} = 2.576 * 11.9 / ME[/tex]

multiply both sides by ME, divide both sides by √20 to isolate ME
ME = 2.576 * 11.9/√20

≈ 6.85

interval = mean ± ME
= (41-6.85, 41+6.85)

= (34.15, 47.85)

Nadia wants to estimate the mean driving range for her company's new electric vehicle. She'll sample vehicles and measure each of their driving ranges to construct a confidence interval for the mean driving range. She wants the margin of error to be no more than 10 kilometers at a 90% level of confidence. A pilot study suggests
that the driving ranges for this type of vehicle have a standard deviation of 15 kilometers.

Which of these is the smallest approximate sample size required to obtain the desired margin of error?

A) 5 vehicles
B) 7 vehicles
C) 10 vehicles
D) 15 vehicles
E) 30 vehicles

Answers

Using the z-distribution, it is found that the smallest sample size required is given by:

B) 7 vehicles.

What is the margin of error for a z-distribution confidence interval?

It is given by:

[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]

In which:

z is the critical value.[tex]\sigma[/tex] is the population standard deviation.n is the sample size.

In this problem, we have a 90% confidence level, hence[tex]\alpha = 0.9[/tex], z is the value of Z that has a p-value of [tex]\frac{1+0.9}{2} = 0.95[/tex], so the critical value is z = 1.645.

The margin of error and the population standard deviation are given by, respectively:

[tex]M = 10, \sigma = 15[/tex].

Then, we solve for n to find the needed sample size.

[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]

[tex]10 = 1.645\frac{15}{\sqrt{n}}[/tex]

[tex]10\sqrt{n} = 1.645 \times 15[/tex]

[tex]\sqrt{n} = 1.645 \times 1.5[/tex]

[tex](\sqrt{n})^2 = (1.645 \times 1.5)^2[/tex]

[tex]n = 6.1[/tex]

Rounding up, 7 vehicles have to be sampled, hence option B is correct.

More can be learned about the z-distribution at https://brainly.com/question/25890103

Slope-intercept form that passes through (9, 3) and has a slope of -

Answers

Step-by-step explanation:

Let m and c be the slope and y-intercept respectively,

(y-3)/(x-9) = m

y-3 = mx-9m

y= mx - 9m+3

y = mx + 3(1-3m)

What is x .
ABC~ DEF

Answers

Answer:

Dado, △ABC∼△DEF

Por lo tanto

A.C

Así que

2x−1

3x+9

2x+2

Ahora tomando

2x−1

tenemos

2x−1

o 4x−2=18 o x=5

Por lo tanto, AB=2×5−1=9,

BC=2×5+2=12,CA=3×5=15,

DE=18,EF=3×5+9=24

y FD=6×5=30

Por lo tanto

AB = 9 cm, BC = 12 cm, CA = 15 cm, DE = 18 cm, EF = 24 cm y FD = 30 cm

find an equation of the line through the given points. give the final answer in slope-intercept form (-2,2) (4,-1)

Answers

to get the equation of any straight line, we simply need two points off of it, let's use the points in the picture below.

[tex](\stackrel{x_1}{-2}~,~\stackrel{y_1}{2})\qquad (\stackrel{x_2}{4}~,~\stackrel{y_2}{-1}) \\\\\\ \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{-1}-\stackrel{y1}{2}}}{\underset{run} {\underset{x_2}{4}-\underset{x_1}{(-2)}}}\implies \cfrac{-3}{4+2}\implies \cfrac{-3}{6}\implies -\cfrac{1}{2}[/tex]

[tex]\begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{2}=\stackrel{m}{-\cfrac{1}{2}}(x-\stackrel{x_1}{(-2)}) \\\\\\ y-2 = -\cfrac{1}{2}(x+2)\implies y-2=-\cfrac{1}{2}x-1\implies y=-\cfrac{1}{2}x+1[/tex]

In the problem 7/10 – 3/4, what is the LCM you can use as the denominator in both fractions?

Answers

1 ) Multiply the largest number (10) by 1.

Can the smallest (4) go into this number evenly?

10 x 1 = 10

10/4 = 2.5 ❌

2 ) Now multiply the largest number by 2.

Can the smallest go into this number evenly?

10 x 2 = 20

20/4 = 5 ✅

The LCD is 20

BRAINLIEST please if this helped!

Convert 21 inches to feet using dimensional analysis round to 2 decimal places necessary

Answers

1 foot = 12 inches = 1/12

21/1 x 1/12 = 21/12 = 1.75 feet

Answer: 1.75 feet

which product is less than 111
31/55x111
31/31x111
55/55x111
55/31x111

Answers

Answer:

31/55 * 111

Step-by-step explanation:

For all the other products, the number before the slash is greater than, or equal to the number after the slash. This means that the fraction is greater than or equal to 1 and thus a bigger product. For 31/55 however, the value is less than 1 (0.56) and thus, the actual product will be less than 111.

plot the points on the coordinate plane and answer the questions k (11,...),L(....,11), and M(40,....) are on that line, too what are the missing coordinates

Answers

The missing coordinates on the line after plotting the points are k(11, 0), L(0, 11) and M(40, 40).

Plotting the points on the coordinate planes

The points can be plotted on coordinate planes as shown below in the graph uploaded.

The missing coordinates are determined as follows;

k (11, 0)L (0, 11)M (40, 40)

Thus, the missing coordinates on the line after plotting the points are k(11, 0), L(0, 11) and M(40, 40).

Learn more about coordinates here: https://brainly.com/question/17206319

#SPJ1

Find the perimeter of a triangle with sides 11 inches and 5 inches and 13 inches x

Answers

Answer:

Step-by-step explanation:

Perimeter of a triangle is the total of sides a+b+c
11+5+13=29

Other Questions

What is the answer to -5x+2y-8x+6y A square tile has an area of110 square centimeters. Which is thebest estimate of the length of oneside? On December 1, a company pays $3,600 for a 36-month insurance policy. After one month, accrual accounting requires $ _________(100/3,600) of insurance expense be reported on the income statement ending December 31. However, if cash basis accounting is used, $ _______(100/3,600) of insurance expense would be reported at the time of purchase. What is the product of 2.5 x 10^2 and 3.7 x 10^5 expressed in scientific notation? The numerator of a fraction is 19 less than the denominator of the fraction. GIve that the fraction 2/9 is obtained when 1 is subtracted from the numerator and 1 is added to the denominator, fing the original fraction. which shows a right triangle Gente que significa "Cuando cambien las estaciones... te quedaras conmigo?" ayuda no entiendo XD What did Colin do to one of the ladies near the sea? Question 2 options: He screamed and bit her hand. He said bad things about her. He patted her cheek. He lied to her. What were the three waysnations were aligned afterWW2 ? (china ,Egypt , india Volusia, Inc. Is a U. S. -based exporting firm that expects to receive payments denominated in both euros and Canadian dollars in one month. Based on today's spot rates, the dollar value of the funds to be received is estimated at $500,000 for the euros and $300,000 for the Canadian dollars. Based on data for the last fifty months, Volusia estimates the standard deviation of monthly percentage changes to be 8 percent for the euro and 3 percent for the Canadian dollar. The correlation coefficient between the euro and the Canadian dollar is 0. 30. What is the portfolio standard deviation What are the foundations of conceptualism?It is directly connected to abstract expressionism and Pollock's drip painting conceptsIt is about the conversation over the idea, not about the looks or stunning techniquesIt is about the idea of working in meticulous detail and highly realistic to get people talking about the workThe artists of this movement wanted to simplify art and make the viewer think about the elements as they were, not by using realism or symbolism Pat needs to determine the height of a tree before cutting it down to be sure that it will not fall on a nearby fence. the angle of elevation of the tree from one position on a flat path from the tree is and from a second position farther along this path it is what is the height of the tree? I have to do homework, but i kinda need help with an answer. (this is not the actual question but it is related to it!) What gets energy and matter from non-living things?and i dont need examples of non living things but i need to know what gets that energy from the non living thingplease give me a good answer for points Read the excerpt below from act 2.1 of The Tragedy of Julius Caesar and complete thBRUTUS:We all stand up against the spirit of Caesar,And in the spirit of men there is no blood.Oh, that we then could come by Caesar's spiritAnd not dismember Caesar.Explain the irony in Brutus' wish to kill Caesar's spirit as indicated in the passage above. What is the length of the hypotenuse? If necessary, round to the nearest tenth. Help me PLEASE 100 points plus a brainlest! What are the portfolio weights for a portfolio that has 185 shares of Stock A that sell for $64 per share and 115 shares of Stock B that sell for $49 per share Rachel carson was a marine biologist and conservationist credited with helping to advance the global environmental movement. What is the name of the book she wrote and published in 1962 that introduced environmental concerns to much of the american public?. Which theme is best supported by the passage? the strongest will always prevail. Perfect justice can never be achieved. Revenge is ultimately self-defeating. There is dignity even in defeat. Which phrase describes air pressure?