rachel has a toy shaped like a triangular pyramid in which the base and the lateral faces are congruent equilateral triangles.

Answers

Answer 1

Answer:

21 in. squared

Step-by-step explanation:


Related Questions

Pierce has 1/4 as many tokens as Kelly. Ron has 8 more than 50% of the tokens that Kelly has. Kelly has 64 tokens. Write an expression for the total number of tokens the group has.

Answers

Answer:

120

Step-by-step explanation:

Kelly = 64 tokens

Ron = 40 tokens

Pierce = 16 tokens

Total = 120 tokens

Use the slope formula to find the slope of the line through the points (4,8) and (−7,6).

Answers

(4,8)(-7,6)

Slope:-

[tex]\\ \rm\longmapsto m=\dfrac{y_2-y_1}{x_2-x_1}[/tex]

[tex]\\ \rm\longmapsto m=\dfrac{6-8}{-7-4}[/tex]

[tex]\\ \rm\longmapsto m=\dfrac{2}{11}[/tex]

A lighthouse sits at the edge of a cliff, as shown. A ship at sea level is 980 meters from the base of the cliff. The angle of elevation from sea level to the base of
the lighthouse is 47.3. The angle of elevation from sea level to top of the lighthouse is 51.3°. Find the height of the lighthouse from the top of the cliff.
Do not round any intermediate computations. Round your answer to the nearest tenth.
Note that the figure below is not drawn to scale.

Answers

The height of the lighthouse from the top of the cliff is 161.2 cm

The situation forms two right angle triangle.

Right angle triangle

Right angle triangle has one of its angles as 90 degree. Therefore, the sides and angles can be found using trigonometric ratios as follows;

tan 51.3 = opposite / adjacent

where

opposite = height of cliff and light house = x

adjacent  = distance of the ship from the base of the cliff

Therefore,

tan 51.3 = x / 980

cross multiply

x = 980 tan 51.3

x = 1223.23995563 meters

tan 47.3 = opposite / adjacent

where

opposite = height of cliff = y

adjacent = distance of the ship from the base of the cliff

tan 47.3 = y / 980

y = 980 tan 47.3

y = 1062.01582791 meters

The height of the lighthouse from the top of the cliff = 1223.23995563 -  1062.01582791 = 161.224127725  = 161.2 cm

learn more on trigonometric ratio here: https://brainly.com/question/26299702


Tito's taxi charges $6,26 fee for a ride plus $2.75 for each additional mile. Write an
expression that gives the cost for a trip of d miles?
a) Algebraic Expression:
b) How much would it cost to travel 23 miles?
Answer Sentence:

Answers

Answer:

A. ok so lets make a alebra equation

2.75d+6.26

first of all they charge a certain amount per mile so thats why we multiply that by the number on miles then we add the base price of 6.26

B. ok so lets just plug in

77.76

Hope This Helps!!!

(a)

Given the info that Tito charges a $6.26 fee for a ride plus $2.75 for every ride, we derive

Y is the amount of money in total

X is the amount of miles for each ride

Algebraic Expression: Y=2.75X+6.26

(b)

Plugging in 23, we get

Y=2.75(230+6.26

Y=69.51

Answer Sentence: It would take $69.51 to travel 23 miles on TIto's taxi.

-Hunter

A certain Tutoring company promised that they will help Suzy's son,Sidney ,to increase his marks by 50% or more.Sidney's Mathematics average mark was 30%.At the end of the year.Sidney's mark increased to 48%.Did this Tutoring company deliver?​

Answers

Answer:

yes

Step-by-step explanation:

48 - 30 = 18

18/30 = 3/5 = 60%

Need help need help Fast

Answers

Answer:

920 cm^2

Step-by-step explanation:

There are 2 rectangles in the overall shape, find the areas of each rectangle... The first one is 800 and the second is 120 then we add those to make the whole shape: 920!

I need help figuring out what the area is of the given shape

Answers

Answer:

15ft square

Step-by-step explanation:

Area of triangle =1/2b×h

=1/2×6ft×5ft

=1/2×30ft square

=15ft square

g^2 + 13g Find the value of this expression where g=4

68

23

5

456

Answers

Answer:

68

Step-by-step explanation:

=> g²+13g

putting the value of g which is 4

=> 4²+13(4)

=> 16+52

=> 68

Answer:

68

Step-by-step explanation:

We simply just plug in 4 for g since the problem states that "g=4"

Which turns our expression to "[tex]4^{2} +13(4)[/tex]"

_________________________

We start by calculating what [tex]4^{2}[/tex] equals which is 16 (4 * 4)

Now we do 13 times 4 which is 52

52 + 16 = 68

What is the solution to this inequality?
7x - 4< 4(x+3)

Answers

Answer:

x <16/3

Step-by-step explanation:

7x - 4< 4(x+3)

Distribute

7x - 4< 4x+12

Subtract 4x from each side

7x-4x - 4< 4x-4x+12

3x-4 < 12

Add4 to each side

3x-4+4 < 12+4

3x<16

Divide each side by 3

3x/3 <16/3

x <16/3

estimate the area of a circle with 28 cm

Answers

Answer:

[tex]A=784\pi[/tex]

Step-by-step explanation:

Calculate area of the circle:

[tex]A=784\pi[/tex]

plz answer the following file attached

Answers

Answer:

i like how to tell us to answer something with no file

Step-by-step explanation:

Anita recorded the amount of rainfall each day for 14 days. What was the total amount of rainfall in the 14 days?l

Answer Choices:

A. 6 7/8 inches

B. 4 1/2 inches

C. 3 3/8 inches

D. 1/8 inches

Answers

The total amount of rainfall is the sum of the rainfall on each day

The total amount of rainfall is [tex]3\frac 38[/tex] inches

How to determine the total amount of rainfall

From the dot plot, we have the following frequency table

Rainfall    Frequency

0                  4

1/8               5

1/4               1

3/8              2

1/2               1

1 1/4             1

So, the total amount of rainfall is:

[tex]Total = 0 * 4 + \frac 18 * 5 + \frac 14 * 1 + \frac 38 * 2 + \frac 12 * 1 + 1\frac 14 * 1[/tex]

Evaluate the sum

[tex]Total = 3\frac 38[/tex]

Hence, the total amount of rainfall is [tex]3\frac 38[/tex] inches

Read more about dot plots at:

https://brainly.com/question/15853311

The length and breath of a rectangular garden are 2m 60cm and 4ft 8in respetively.find the diferences between the length and the breath in ft

Answers

Answer:

2m 60cm-4ft 8in=1.1776 meters which in feet

3.86351706 ft

Hope This Helps!!!

You bought a laptop and paid initial $150 you will
Make 12 payments of $69.50 how much will computer cost of your state charges 6% sales tax on the total sale?

Answers

Answer:

Step-by-step explanation:

Total Cost = 150 + 69.50*12

Total Cost = 150 + 834

Total Cost = 984

Hidden in that is a 6% sales tax

Cost before sales tax =  1.06 * x = 984. This is the key step. The 6% sales tax is hidden in the 1.06. So you call the original price = x.

1.06 * x = 984                 Divide by 1.06

x = 928.3                        without the sales tax

The question seems to be answered by 984. The sales tax is in that cost.

PLEASE I NEED HELP QUICKLY!! Solve for x in the figure.

Answers

Answer:

23 degrees

To get this:

5x means 5 squared, also known as 5 times itself. 5x5 is 25.

25 - 2 is 23.

23 degrees should be it.

Answer:

The value of x is 16 degree

Step-by-step explanation:

5x-2=78(vertically opposite angle)

or,5x=78+2

or,x=80/5

   x=16

you throw a rock up into the air as hard as you can. it stays in the air for 8 seconds. what was the velocity of the rock when you threw it?

Answers

Answer:

39.2 m/s

Step-by-step explanation:

Let a = 9.8 m/s^2, t = 8 sec, find the initial velocity v

After time t, the rock hit the ground, so the height h = 0

Use h = vt - at^2/2 = 0

v = at/2 = 9.8 * 8/2 = 39.2 m/s

PLEASE HELP ME WITH THIS !! ILL GIVE BRAINLIEST

Answers

Answer:

D. d ≈ 9.4

Step-by-step explanation:

[] We can use the distance formula to solve

-> The distance formal is attached.

[tex]d = \sqrt{(4-9)^{2}+ (2-10)^{2} }[/tex]

[tex]d = \sqrt{(-5)^{2}+ (-8)^{2} }[/tex]

[tex]d = \sqrt{25+ 64 }[/tex]

[tex]d = \sqrt{89}[/tex]

d ≈ 9.4

Have a nice day!

     I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly.

- Heather

help asap with this question please

Answers

Answer:

Here is the graph for the equation, which is y = 4^x

Step-by-step explanation:

Hope this helps =)

Graph the parabola that has the following properties:

Vertex (0.1)
x-intercept = none
y-intercept = 1
Direction of opening is up

Answers

ABC def ghi jkl mno pqr stu vwy z

she sells tickets for $15 each her goal is to raise more than $180 how many tickets to get her goal

Answers

Answer:

12

Step-by-step explanation:

you will have to divide $15 by $180 and when you do that your result should end up being 12, hope that helped

Question 8 of 13
The table below represents the closing prices of stock ABC for the last five
days. Using your calculator, what is the equation of linear regression that fits
these data?
Day
1
2
Value
24.31
23.31
23.01
23.16
23.27
4
Un
5
O A. y=-0.147x + 19.217
O B. y=-0.223x + 24.081
O c. y = 0.194x - 24.815
O D. y=-0.237x + 25.139
SUBMIT

Answers

Linear regression are used to represent scatter plots

The linear regression equation is: [tex]y = -0.223x + 24.081[/tex]

How to determine the linear equation

Start by entering the table values in a graphing calculator.

From the graphing calculator, we have the following calculation summary

Sum of X = 15Sum of Y = 117.06Mean X = 3Mean Y = 23.412Sum of squares (SSX) = 10Sum of products (SP) = -2.23

Hence, the linear regression equation is:

[tex]y = -0.223x + 24.081[/tex]

Read more about linear regression at:

https://brainly.com/question/25987747

The line of best fit is y = -0.223x + 24.081

Linear equation

A linear equation is in the form:

y = mx + b

where y, x are variables, m is the slope of the line (rate of change) and b is the y intercept (initial value of x).

Plotting the values of the table using geogebra online graphing tool, the line of best fit is y = -0.223x + 24.081

Find out more on Linear equation at: https://brainly.com/question/14323743

Would you prefer a fully taxable investment earning 8.1 percent or a tax-exempt investment earning 6.1 percent

Answers

Answer:

Assuming that all other factors are equal, (and they never are), I would prefer a 20% or more ROI investment, located in a tax deferred, or tax exempt account!

Assuming that you are for some reason entirely unmotivated to look for better investments than the two you have pointed out, why not just buy the 8.1% investment with your IRA, Roth IRA, 401(k), SEP IRA, or spousal IRA funds?

You can then pretty much ignore your tax rate. Just move over any portion of your standard deduction that remains unused near the end of the year, via a Roth conversion. You will pay no additional taxes, and the money converted will forever remain free of RMDs, (which will otherwise occur later on), for the rest of your life!

Step-by-step explanation:

Use your now freed up taxable money to invest in tax free transactions, (similar to the effect of having a periodic Roth IRA), and live happily ever after!

As always, upvote and follow me, either if you are entertained by my answers, or, if you are sufficiently curious to investigate my other answers posted on Quora, and realize that you COULD be making FAR MORE money with your investments than you have been!

Thank you for reading and I hope it helps

Use the piecewise function graph to the right to find:

Answers

Answer:

a) f(-8) = 1

b) f(-4) = 5

c) f(2) is undefined

Step-by-step explanation:

f(x) notation means "the function of x".  Therefore, for f(-8) you need to find the y value when x = -8.  Locate -8 on the x-axis and then follow up (or down) until you meet the curve/line.  Then find the corresponding y-coordinate of this point.

From inspection of the graph:

a) f(-8) = 1

b) f(-4) = 5

c) f(2) is undefined

A meal has 408 calories in 8 servings. Find the unit rate.

Answers

Answer:

51 calories per serving

Step-by-step explanation:

Take the total number of calories and divide by the number of servings

408 calories / 8 servings

51 calories per serving

The unit rate is 51.
408/8=51

tan 45° + cos 60
Sin 150°

Answers

Answer:

solution:

2+2cos (60)

Step-by-step explanation:

wc:>

Tyler orders a meal that costs $15
the sales tax in tyler’s county is 6.6%
how much will the sales tax be on tyler’s meal?

Answers

Answer:

0.44

Step-by-step explanation:

Divide the percent with the original price to get your answer

Find the volume of the prism

Answers

Answer:

The volume of the prism is 20 meters.

Step-by-step explanation:

2 x 2 x 5 equals 20

Answer:

20 m³

Step-by-step explanation:

Volume of a rectangular prism = width x length x height

Given:

width = 2length = 2height = 5

⇒ volume = 2 x 2 x 5 = 20 m³

A shipment of 13 microwave ovens contains six defective units. A vending company purchases four units at random.
(a) What is the probability that all four units are good?

(b) What is the probability that exactly two units are good?

(c) What is the probability that at least two units are good?

Answers

Not sure but I think

a) 4/6 which is 66.67%
b) 2/6 which is 33.33%
c) 4/6 which is 66.67%

i haven’t even finished high school so please don’t blame me if im wrong I do think that is the answer

A negative number is always less than a positive number do you beliece in that statement? why or why not​

Answers

Answer:

yes a negative number is less than a positive.

Step-by-step explanation:

Because  the negative number is below zero and positive number are above Zero

What is the solution to the equation below. square root x + 6 = x - 6

Answers

Answer:

[tex]x = 10[/tex]

Step-by-step explanation:

[tex]\sqrt{x+6} =x-6\\[/tex]

square both sides:

[tex]\implies x+6=(x-6)^2[/tex]

Expand brackets:

[tex]\implies x+6=x^2-12x+36[/tex]

Collect and combine like terms:

[tex]\implies x^2-13x+30=0[/tex]

[tex]\implies (x-10)(x-3)=0[/tex]

[tex]\implies x=10, x=3[/tex]

Substitute values back into original equation:

[tex]x=10: \sqrt{10+6} =10-6 \implies 4 = 4 \ \ \checkmark[/tex]

[tex]x=3: \sqrt{3+6} =3-6 \implies 3 = -3 \ \ \textsf{incorrect!}[/tex]

Therefore, [tex]x=10[/tex] only

[tex]\\ \tt\rightarrowtail \sqrt{x+6}=x-6[/tex]

[tex]\\ \tt\rightarrowtail x+6=(x-6)^2[/tex]

[tex]\\ \tt\rightarrowtail x+6=x^2-12x+36[/tex]

[tex]\\ \tt\rightarrowtail x^2-13x+30=0[/tex]

[tex]\\ \tt\rightarrowtail x^2-10x-3x+30=0[/tex]

[tex]\\ \tt\rightarrowtail (x-3)(x-10)=0[/tex]

[tex]\\ \tt\rightarrowtail x=3,10[/tex]

Other Questions
Three friends went apple picking and then counted the apples they picked.Who has the largest red to green apple ratio? Use original complete sentences.!! WILL GIVE BRAINLIEST IF CORRECT !! 19 1 point "I read with interest the recent article in your newspaper entitled 'Should a Woman Demand All the Rights of a Man? In my view, to answer that question correctly, we first need to examine the roles of men and women in civilization-especially modern civilization-because what may have been true in ancient times no longer applies in our present situation. Modern civilization has moved beyond the condition of the past because society is no longer characterized by roughness and reliance on physical power. Victory no longer goes to him who was the strongest, the best able to endure hardship, or committed the most atrocities. By contrast, the basis of our modern civilization is good upbringing and the refinement of morals through the development of literary knowledge, courtesy, and compassion for the oppressed, all of which women are better at. So all our doctors and scientists who exalt man's strong muscles, his wide skull, his long arm-to-body ratio and the like, miss the point entirely. Those physical facts, while undeniable, no longer grant man preference over woman in modern civilization" Letter from an anonymous female reader to the Egyptian journal Al-Hilal, 1894 The letter's reference in the third paragraph to the claims of "our doctors and scientists" is best understood in the context of which of the following late nineteenth-century processes? Bourgeois ideas of cultural and literary refinement became prevalent in many parts of the world. The achievements of medieval Muslim science became known in the West, stimulating new interest in biology and medicine. Physical differences between genders and racial groups were used to justify the denial of rights to women and non-Europeans. The scientific method stressing experimentation and the collection of empirical evidence was discovered and first used. Which wire has the most total charge carriers flowing past a point in the wire during the specified time interval Solve for x : Y=3x- 8 Y=-4x+6 Find the next 3 terms and hows the numbers changing The vagus nerve operates under the control of the parasympathetic nervous system and causes the ________. * If P(E) = 0.32, then what are the odds against E? What type of mass movement moves the most material, averaged over the earths land and over long times?. Can anyone help me with this? what is the formula of circle The number of neutrons and electrons in chlorine On what date is the feast of lupercalia celebrated?. can someone please help me solve the following? In the Soviet Union, Joseph Stalin governed by means of secret police, censorship, and purges. This type of government is called Question 6 options: democracy totalitarian limited monarchy theocracy. i dont know how to do this I will give brainleist Subway opens approximatelynew restaurants every year.)1000B100C50DD) 5 The setting of a story includes not only where but when the story takes place. What is the setting in Chapter One of The Boy in the Striped Pajamas? HELP!!! The graph shows the relationship between the distance that a snail crawls and the time that it crawls. What numbers will correctly complete the table below? plese guys I need help. USATESTPREPExamine the image here showing the different characteristics of the components of the electromagnetic spectrum. Ultraviolet light is often used to sterilize water in a water treatment facility. Which characteristics of ultraviolet light allow it to sterilize water? Select ALL that apply.A) It is not visible, so pathogens cannot detect its presence. B) It has low enough energy to be safe to humans but harmful to pathogens. C) Its energy level is high enough to cause ionizing damage to DNA and molecules. D) It has wavelengths too large to cause molecular changes to the molecules of water. E) Its wavelengths are small enough to interact with bacteria and viruses, which can be pathogenic in the water.