Answers
Answer:
0.171 m
Step-by-step explanation:
First, let's determine how many mm of track he has in total...
74mm+97mm=171 mm
Now, we can set up a unit converter to convert mm to m (note that 1 mm is [tex]10^{-3{[/tex] m)...
[tex]171mm(\frac{10^{-3}m}{1mm})[/tex]
The "mm" cancels out...
[tex]171*10^{-3}m=0.171m[/tex]
Answer:
Step-by-step explanation:
74 + 97 = 171 mm
Length of the train track = 171 mm = 171÷ 1000 = 0.171 m
Related Questions
Select the correct answer.
Vincent borrowed $500 from Mitchell for six months. How much interest will Mitchell earn if he charges Vincent a simple interest rate of 3 percent?
simple interest = P × r × t
A.
$7.50
B.
$15
C.
$75
Answers
Answer:
A
Step-by-step explanation:
I= PRT
[tex]simple \: interest = \frac{500 \times 3 \times 1}{100 \times 2} [/tex]
[tex] = \frac{1500}{200} [/tex]
=$7.50
A particular type of diet cola advertises that each can contains 12 ounces of the beverage. Each hour, a supervisor selects 10 cans at random, measures their contents, and computes a 95% confidence interval for the true mean volume. For one particular hour, the 95% confidence interval is 11.97 ounces to 12.05 ounces.
a. Does the confidence interval provide convincing evidence that the true mean volume is different than 12 ounces? Explain your answer.
b. Does the confidence interval provide convincing evidence that the true mean volume is 12 ounces? Explain your answer.
Answers
According to the given confidence interval, we have that:
a) Since 12 ounces is part of the confidence interval, the interval does not provide convincing evidence that the true mean volume is different than 12 ounces.
b) Since 12 ounces is part of the confidence interval, the interval provides convincing evidence that the true mean volume is 12 ounces.
What is the hypothesis tested?It is being tested if the true mean volume is different of 12 ounces, hence:
If the confidence interval contains 12 ounces, it provides convincing evidence that the true mean volume is 12 ounces.If the confidence interval does not contain 12 ounces, it provides convincing evidence that the true mean volume is not 12 ounces.In this problem, the interval is (11.97, 12.05), hence it provides convincing evidence that the true mean volume is 12 ounces, and basically, item a is False and item b is True.
You can learn more about confidence intervals at brainly.com/question/16236451
Which set of ordered pairs (x,y) could represent a linear function
Answers
Use the following compound interest formula to complete the problem. A = P (1 StartFraction r over n EndFraction) superscript n superscript t Currently you have two credit cards, H and I. Card H has a balance of $1,186. 44 and an interest rate of 14. 74%, compounded annually. Card I has a balance of $1,522. 16 and an interest rate of 12. 05%, compounded monthly. Assuming that you make no purchases and no payments with either card, after three years, which card’s balance will have increased by more, and how much greater will that increase be? a. Card I’s balance increased by $53. 16 more than Card H’s balance. B. Card I’s balance increased by $13. 45 more than Card H’s balance. C. Card H’s balance increased by $35. 61 more than Card I’s balance. D. Card H’s balance increased by $49. 06 more than Card I’s balance. Please select the best answer from the choices provided A B C D.
Answers
Answer:
B. card I'' increased by 1.2986 = 13 more than card H's
Step-by-step explanation:
please help me with the question
Answers
Answer:
-2.5 m/s^2
Step-by-step explanation:
From 2 seconds to 8 seconds (the last 6 seconds), the speed decreased from 15 m/s to 0. The average acceleration is ...
(-15 m/s)/(6 s) = -2.5 m/s^2
C. Multiple Choice. Read each Item Carefully. Choose the letter of the correct answer then write it on the
space provided for. (Use figures 1, 2 and 3 for item #s 11-15.)
figure 1 figure 2 figure 3
___________11. What is the side corresponding to PO in ΔPOG ≅ ΔSOR (figure 1)?
A. OS B. RD C. RS D. SO
____________12. Name the congruent triangle illustrated in figure 1
A. ΔFOG ≅ ΔSOR B. ΔPOG ≅ ΔROS C. ΔROS ≅ GOS D. ΔPOR ≅ ΔGOS
____________13. What is the triangle congruence postulate used in figure 2 based on its marking.
A. SSS postulate B. ASA Postulate C. SAS Postulate D. AAA postulate
____________14. Based on the given marking in figure 3, what is the triangle congruence postulate is used in
describing triangle.
A. SSS postulate B. ASA Postulate C. SAS Postulate D. AAA postulate
___________15. In figure 3, If triangle ΔABC ≅ ΔXYZ. What is the congruent angle of ∠A?
A. ∠B B. ∠X C. ∠Z D. ∠B
Answers
Congruent triangles have congruent corresponding sides and angles, while similar triangles may or may not be congruent
Corresponding side of POThe congruence statement is given as:
ΔPOG ≅ ΔSOR
The above means that:
Points P, O and G correspond to the points S, O and R
Hence, the corresponding side of PO in ΔPOG ≅ ΔSOR is SO
The congruent trianglesThe congruence statement is given as:
ΔPOG ≅ ΔSOR
Hence, the congruent triangles are ΔPOG ≅ ΔROS
The congruent postulateIn figure 2, we have:
2 congruent sides, and 1 congruent angle between the congruent sides
Hence, the congruence postulate is SAS
Congruent anglesThe congruence statement is given as:
ΔABC ≅ ΔXYZ
The above means that:
Point A corresponds to the point X
Hence, the congruent angle of <A is <X
Read more about congruent triangles at:
https://brainly.com/question/1675117
2 more than 5 times a number is greater than or equal to 3
Answers
Answer:
x >= 1/5
Step-by-step explanation:
2 + 5x >= 3
5x >= 1
x >= 1/5
Triangle ABC is right triangle. The length of one leg is 80 centimeters, and the hypotenuse is 120 centimeters. What is the length, in centimeters, of the other leg?
Answers
The length of the other leg of the right triangle is; 89.44 centimetres
Right triangles and the Pythagoras theoremAccording to the question;
We are required to determine the length, in centimetres of the other leg of the right triangle.By the Pythagoras theorem;
Hyp² = Opp² + Adj²Hence, It follows that;
120² = 80² + X²x² = 14400-6400x² = 80,000Find the square root of both sides of the equation;
x = √80,000x = 89.44 centimeters
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Help please! 50 points.
Answers
[tex]\qquad \qquad\huge \underline{\boxed{\sf Answer}}[/tex]
Here's the solution ~As we observe the points, we can conclude that :
Translation along x axis is ~
[tex]\qquad \sf \dashrightarrow \: 1 - ( - 3)[/tex]
[tex]\qquad \sf \dashrightarrow \:1 + 3[/tex]
[tex]\qquad \sf \dashrightarrow \:4 \: \: units \: \: towards \: \: left[/tex]
Translation along y axis ~
[tex]\qquad \sf \dashrightarrow \: - 8 - ( - 13)[/tex]
[tex]\qquad \sf \dashrightarrow \: - 8 + 13[/tex]
[tex]\qquad \sf \dashrightarrow \:5 \: \: units \: \: towards \: \: down[/tex]
So, same goes with translation of (-5 , 9)
[tex]\qquad \sf \dashrightarrow \: x \: \:coordinate = - 5 - 4 = - 9[/tex]
[tex]\qquad \sf \dashrightarrow \: y \: \:coordinate = 9 - 5 = 4[/tex]
So, the required coordinates of the image under same translation is ~
[tex]\qquad \sf \dashrightarrow \:(-9, 4)[/tex]
Answer:
Please help look at the image I need help with number 4. I already did the line plot for number 3 and the data in on the chart. Thank you! :)
Claudia school is selling tickets to a spring musical. On the first day of tickets sales the school sold 3 senior citizen tickets and 9 child tickets for a total of 75$ The school took in 67 on second day by selling 8 senior citizen tickets and 5 child tickets.what price each of one senior citizens ticket and one child ticket
Answers
Answer:
One senior citizen ticket costs 4 dollars and one child ticket costs 7 dollars
Step-by-step explanation:
Let x be the cost of a senior ticket and y be the cost of a child ticket then...
3x+9y=75
8x+5y=67
We can simplify the first equation by dividing everything by 3...
x+3y=25
Now, isolate x by subtracting 3y from both sides
x=25-3y
We can solve this system of equations using substitution (substitute 25-3y for x)...
8(25-3y)+5y=67
200-24y+5y=67
Combine like terms
-19y+200=67
Subtract 200 from both sides
-19y=-133
Divide both sides by -19
y=7
Plug 7 back in for y to solve for x
x=25-3(7)=25-21=4
One senior citizens ticket costs 4 dollars and one child ticket costs 7 dollars.
Selena buys several shares of stock at $32 per share and sells them at $28. 32 per share. What is the percent of decrease in the price of the stock? 12. 0% 11. 5% 11. 0% 10. 5%.
Answers
The total percent of decrease in price of the shares of Selena's stock which Selena first buys and then sold is 11.5 percent.
What is percentage decrease?Percentage decrease in a number is the ratio of total decrease in the original value of a number to the decreased value in the percentage form.
Given information-
The total stock buy by the Selena in $32.
The total stock sold by the Selena in $28.32.
As the total stock buy by the Selena in $32, and the total stock sold by the Selena in $28.32. Thus the total decrease in the price of stock is,
[tex]C_s=32-28.32\\C_s=3.68[/tex]
Thus the total decrease in the price of stock is $3.68.
As the cost price of the stock is $32 and the total decrease in the price of stock is $3.68. Thus the total percent of decrease in the price of the stock is,
[tex]\Delta C_s=\dfrac{3.68}{32}\times100\\\Delta C_s=11.5[/tex]
Thus the total percent of decrease in the price of the stock is 11.5 percent.
Learn more about the percentage decrease here;
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In parallelogram GRAM, m
Answers
Answer:
Step-by-step explanation:
Justin has a savings account.
-He started with $70 in his account.
-He deposits $15 into the account each week.
-Let 'b' represent the amount Justin has in the bank after 'w' weeks.
Which equation represents the total amount Justin will have in his account?
Answers
Which symbol replaces the box to make the statement true? 4. 16 – 16 04. [24 – 2. (4+8)] ( A
Answers
Answer:
More than sign as the first equation will give 40 whereas the second one is 0 so the first equation is larger
Therefore more than
9. The 8 grade class is selling pennants and flags. They earn $1 for each pennant
sold and $6 for each flag sold. They sell 50 items and earn $115. How many
pennants and how many flags did they sell?
Answers
Given :
The 8 grade class is selling pennants and flags.They earn $1 for each pennantsold and $6 for each flag sold. They sell 50 items and earn $115.To Find :
How many pennants and how many flags did they sell?Solution :-
Let us take that ,
→ number of flags sold = f
→ number of pennant sold = p
Money earned by selling flags
→ Money = $6 * f = $6f
Money earned by selling pennants
→ Money = $1*p = $1p
Total money earned
→ Total Money = $6f + $1p
Total items sold
→ Total items = f + p = 50 . . . . . (i)
According to the question ,
→ 6f + p = 115 . . . . . (ii)
Solving equations (i) and (ii) ,
On subtracting them ,
→ 6f - f = 115 -50
→ 5f = 65
→ f = 65/5
→ f = 13
Substitute this in equation (i) ,
→ 13 + p = 50
→ p = 50 -13 = 37
Hence they sold 13 flags and 37 pennants .
I hope this helps .
Which of the following are exterior angles? Check all that apply.
Answers
Answer:
4 and 5
Step-by-step explanation:
Solve the following system of equations and show all work.
y = −x2 + 4
y = 2x + 1
Answers
Given sin 0=7/4and angle 0 is in quadrant 1 what is the exact value of cos 0 in simplest form? Simplify all radics if needed
Answers
Answer:
Answer: ¾
Step-by-step explanation:
» From the trigonometric identities:
[tex]{ \tt{ \sin {}^{2} \theta + \cos {}^{2} \theta = 1 }}[/tex]
» Substitute to the formular:
[tex]{ \tt {( \frac{ \sqrt{7} }{4} )}^{2} + { \cos }^{2} \theta = 1 } \\ \\ { \tt{ \frac{7}{16} + { \cos}^{2} \theta = 1 }} \\ \\ { \tt{ \cos {}^{2} \theta = 1 - \frac{7}{16} }} \\ \\ { \tt{( \cos\theta) {}^{2} = \frac{9}{16} }} \\ \\ { \tt{ \sqrt{ {( \cos \theta}^{2}) } = \sqrt{( \frac{9}{16}) } }} \\ \\ { \tt{ \cos \theta = \frac{ \sqrt{9} }{ \sqrt{16} } }} \\ \\ { \boxed{ \tt{ \cos \theta = \frac{3}{4} }}}[/tex]
A hand glider dives at 25 mph in a direction 60° below horizontal. What is the component form of the velocity vector?.
Answers
Velocity can be represented in horizontal and vertical components
The horizontal component form of the velocity is 12.5 mph
How to determine the component form of the velocityThe given parameters are:
Velocity = 25 mph
Angle = 60 degrees
The horizontal component form of the velocity is then calculated as:
[tex]v_x = 25 * \cos(60)[/tex]
Evaluate the product
[tex]v_x = 12.5[/tex]
Hence, the horizontal component form of the velocity is 12.5 mph
Read more about velocity at:
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Find the inverse of g(x)=1/x-1+2
Answers
Answer:
Find the inverse of g(x)=1/x-1+2 :
[tex]g^{-1} (x)=\frac{1}{x-1}[/tex]
PLEASE PLEASE HELP!!!!
Find the value of x.
6x°
60°
A. 20
B. 10
C. 15
D. 5
Answers
Answer:D
Step-by-step explanation:
D
Answer:
I think the answer is letter C.15
Correct me if im wrong
#Thank you
The quotient of a number and -7,
decreased by 2, is 10. Find the
number.
Answers
Answer:
-84
Step-by-step explanation:
Let the number be x. Then we have,
[tex]\frac{x}{-7}[/tex] (the quotient of a number and -7)
[tex]\frac{x}{-7}-2[/tex] (decreased by 2)
[tex]\frac{x}{-7}-2=10[/tex] (is 10)
Now we can solve for x,:
[tex]\frac{x}{-7}-2=10[/tex]
[tex]\frac{x}{-7}=12[/tex]
[tex]x=-84[/tex]
So, the original number is -84
Answer:
-84
Step-by-step explanation:
[tex]\frac{n}{-7}[/tex] -2 = 10
add 2 to each side to get:
[tex]\frac{n}{-7}[/tex] = 12
multiply each side by -7 to get:
n = -84
Type the correct answer in the box. The solubility of calcium carbonate is 14. This rate means that 14 milligrams of calcium carbonate can dissolve in 1 liter of water. How much water would be required to fully dissolve 11 grams of calcium carbonate? Express your answer to the correct number of significant figures. One milligram is equal to 0. 001 grams. It would take liters of water to fully dissolve 11 grams of calcium carbonate.
Answers
Ratio compares two quantities. The amount of water that will be needed to dissolve 14 grams of calcium carbonate is 1000 liters.
Given to us
The solubility of calcium carbonate is 14.
We know that to dissolve 14 milligrams of calcium carbonate we will need 1 liter of water. therefore, the ratio of water and calcium carbonate can be written as,
[tex]\rm \dfrac{calcium\ carbonate}{water} = \dfrac{14\ milligram}{1\ liter}[/tex]
We need to find the amount of water needed to dissolve 14 grams of water, therefore, we will convert grams to milligrams,
1 gram = 1000 milligram
14 gram = 14,000 milligram
Using the same ratio,
[tex]\rm \dfrac{14,000\ milligram}{water} = \dfrac{14\ milligram}{1\ liter}[/tex]
[tex]\rm {water} = \dfrac{14000\ milligram \times 1\ liter}{14\ milligram}[/tex]
water = 1000 liters
Hence, the amount of water that will be needed to dissolve 14 grams of calcium carbonate is 1000 liters.
Learn more about Ratio:
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HELP ILL MARK BRANLIEST
Rectangle CDEF is rotated 45° in a clockwise direction. To which angle of the image does angle D correspond?
angle C prime
angle D prime
angle C
angle D
Answers
Answer:
Angle C prime
Step-by-step explanation:
First design and sketch it:
Make a rectangle with corners C D E and F. 90 degrees each. Now rotate it 45 degrees to the left. Angle D is diagonally from Angle C.
I hope this helps! :)
what is the answer to 7864 ÷ 51
Answers
I WILL GIVE 20 POINTS TO THOSE WHO ANSWER THIS QUESTION RIGHT NOOO SCAMS PLEASE. Find the area of the figure
_____m squared
Answers
Answer:
11700 m²
Step-by-step explanation:
Split the shape in two. One rectangle 150x30 and one triangle 180x80.
Find the areas of both and add them:
A = bh + 1/2bh
A = 150(30) + 1/2(180)(80)
A = 4500 + 7200
A = 11700
Pls help asap I will give brainliest
Answers
Answer:
the zeroes are -2 and 8
Step-by-step explanation:
[tex]-x^2 +6x+16\\\implies -(x^2-6x-16)\\\implies -(x+2)(x-8)[/tex]
Therefore, the zeroes are -2 and 8
PLS HELP MARKING BRAINLEIST
Answers
Answer:
[tex]4p^2q-4q+8p[/tex]
Step-by-step explanation:
[tex](12p^2q+p-3pq^2)-(4q-7p+8p^2q-3pq^2)[/tex]
Apply rule [tex]-(-a)=a[/tex] and [tex]-(a)=-a[/tex]:
[tex]\implies 12p^2q+p-3pq^2-4q+7p-8p^2q+3pq^2[/tex]
Collect like terms:
[tex]\implies 12p^2q-8p^2q-3pq^2+3pq^2-4q+7p+p[/tex]
Combine like terms:
[tex]\implies 4p^2q-4q+8p[/tex]
help!!!! please answer!!!
Answers
Answer:
116
Step-by-step explanation:
3 to the power of 4 is 81. 7x5 =35+81=116
Which regions have populations with 9 as the power?
Answers
Answer:
the regions whose populations have 9 as the power include Africa and Asia.
Step-by-step explanation:
Answer:
africa and asia
Step-by-step explanation: