Answers
Answer:
13.896 kg
Step-by-step explanation:
Volume of Gold Bar = Area of [Trapezium x Length of Bar]
Length of Bar = 16 cm
Area of Trapezium = 2 × Area of Triangle + Area of Rectangle
Area of Triangle = 0.5 × 5 × 3 = 7.5 cm²
2 × Area of Triangle = 2 × 7.5 = 15 cm²
Area of Rectangle = 6 × 5 = 30 cm²
Area of Trapezium = 15 + 30 = 45 cm²
Volume of Gold Bar = 45 × 16 = 720 cm³
Density of Gold = 19.3 g/cm³
Mass of Gold Bar = 720 × 19.3 = 13896 g = 13.896 kg
Mass of Gold Bar = 13.896 kg
Therefore the mass of the Gold Bar is: 13.896 kg (kilograms).
Answer:
13.896kg
Step-by-step explanation:
First, find the volume of the trapezium.
Volume = area of cross-sectional area times the length (16cm)
[(a+b)/2] times height
(6+12)/2 x 5
(18/2) x 5
9 x 5
= 45 <-- area of cross section
45 x 16 = 720 cm^3 <-- volume
To find the mass, multiply volume times density
720 x 19.3 = 13 896g = 13.896kg
For detailed, step-by-step explanations you can visit my fiverr account: kesja_
I provide detailed explanations for math questions for as little as $1!
Related Questions
An investor has an account with stock from two different companies. Last year, his stock in Company A was worth $3750 and his stock in Company B was worth $1860. The stock in Company A has decreased 24% since last year and the stock in Company B has decreased 20%. What was the total percentage decrease in the investor's stock account? Round your answer to the nearest tenth (if necessary).
Plssssssss help ill give brainliesttttt
Answers
Answer: Heyy Bestie Your answer would be 22.7%
Love ya and stay sliving ❤️
Step-by-step explanation:
What is the slope of the line?
1/2
2
-1/2
-2
Answers
Question 1
(a) Using Geometry Vocabulary, describe a sequence of transformations that maps figure X onto figure Y.
(b) Write the Transformation Mapping Rule(s) for the sequence you described in part (a).
- No text entered -
Question 2
Jonny is writing a program for a video game. For one part of the game he uses the rule given below to move objects on the screen.
Showing all your work, give the output that the rule gives for the inputs.
(x, y)→(x−7.5, y+6.8)
First input: (5.3, 2.7)
Second input: (9.4, -3.9)
Question 3
Triangle ABC has its vertices at the following coordinates:
A(-5, 2) B(-3, 1) C(-1, 5)
Give the coordinates of the image triangle A'B'C' after a 90° counterclockwise rotation about the origin.
Answers
Answer: Question 1 = reflection over y axis, transformation 1 unit to the left
Step-by-step explanation:
3x^2 + 2x-4 = 0 help
Answers
Answer:
[tex]{ \rm{3 {x}^{2} + 2x - 4 = 0 }}[/tex]
• let's use the quadratic formular to solve the quadratic equation given.
• Considering general quadratic equation; ax² + bx + c = 0
• therefore;
[tex]{ \tt{x = \frac{ - b \pm \sqrt{ {b}^{2} - 4ac } }{2a} }} \\ [/tex]
a is 3b is 2c is -4• substitute following the mathematical operation rules:
[tex]{ \rm{x = \frac{ - 2 \pm \sqrt{ {2}^{2} - (4 \times 3 \times - 4) } }{(2 \times 3)} }} \\ \\ { \rm{x = \frac{ - 2 \pm52}{6} }} \\ [/tex]
• split the values:
[tex]{ \rm{either \: \{x = \frac{ - 2 + \sqrt{52} }{6} \} \: \: or \: \: \{x = \frac{ - 2 - \sqrt{52} }{6} \} }} \\ \\ { \rm{either \: \{x = 0.87 \} \: \: or \: \: \{x = - 1.54 \}}}[/tex]
12,285 divided by 525
Please add an explanation.
Answers
525 goes into 1228 2 times, and 1228 - 1050 = 178.
525 goes into 1785 3 times, and 1785 - 1575 = 210.
525 goes into 2100 4 times, and 2100 - 2100 = 0, which means the number’s decimals have stopped.
i don’t know if i explained it in a way you can understand, sorry if i didn’t.
watch help video
What is the slope of the line that passes through the points (-2,-5) and (-3,-6
Answers
Answer:
[tex]Slope=1.[/tex]
Step-by-step explanation:
[tex]Calculate \: the \: slope \: m \: using \: the \\ \: slope \: formula \: [/tex]
[tex]m = \frac{y2 - y1}{x2 - x1} [/tex]
[tex]with(x^1,y^1)=(-2,-5)and(x^2,y^2)=(-3,-6)[/tex]
[tex]m = \frac{ - 6 - ( - 5)}{ - 3 - ( - 2)} = \frac{ -6 + 5}{ - 3 + 2} = \frac{ - 1}{ - 1} = 1.[/tex]
[tex]Thank \: you!!![/tex]
Please someone help im giving brainliest :)
Answers
Answer:
No, they are opposite as squared is multiplication. Please give brainliest!
what is the answe ?????
Answers
Hello there!
The right prime factorization is
2*2*2*3*11 because 2 and 3 and 11 are prime.
Take a look at the words "prime" and "factorization"
Can you see something that looks like "prime factors?" Exactly!
2 is prime. 3 is prime. 11 is also prime.
A prime number is only divisible by 1 and itself.
What is the value of 5+2*15+(12*4)?
If you remember "Please Excuse My Dear Aunt Sally" that's great as long as you know what that means.
P = Parentheses
E=Exponents
M=Multiplication
D=Division
A=Addition
S=Subtraction
5+2*15+(12*4)=5+2*15+(48)=5+30+48=83
A farmer has 40 tomatoes in a basket. 18 were green. How many were red?
[tex]Given:[/tex]
18 green
40 total
[tex]Find:[/tex]
Red
40-18=22
Hope this helps
Answer:
18 green
40 total
Red
40-18=22
Step-by-step explanation:
In a high school basketball game, a player on the home team makes two free throws. One student asks the student next to her what he thinks the probability of hitting two free throws in a row is. The student replies, "The probability of him making a free throw is probably about .6, so hitting two free throws is probably about 1.2." Why can this immediately be dismissed as incorrect?
A.
The final number, 1.2, is a fraction, which can never represent a probability.
B.
The probability of making a free throw can never be .6.
C.
The probability of an event happening twice in a row can never be equal.
D.
The final number is greater than 1, which is not a valid probability.
Answers
Answer:
DStep-by-step explanation:
The probability can be expressed as a number between 0 and 1 or a percent value between zero and 100%.
Correct choice is:
D. The final number is greater than 1, which is not a valid probability.order the set of decimals in order from least to greatest 0.30.035 0.53 0.503
Answers
Answer:
0.30 - 0.35 - 0.503 - 0.53
Step-by-step explanation:
help me please and thank u
Answers
Answer:
4
Step-by-step explanation:
Can someone pleases help me with my math hw!!!!!!
I will only give brainliest if you do 14-23
Answers
I see you need help with 14 - 23 evens, so hopefully this is what you need. If not, comment and I will edit it as appropriate :) Have a nice day
14: It is slightly hard to see, but I am going to say 15 mm. We can decide this because the ruler says it is in mm and on both sides are 10 and 20. It is in the middle so we will decide the answer is 15.
16: 3,629 - 429 = 3,198 (not much explanation, just use a calculator or do the subtractation)
18: 491 * 700 = 343,700 (multiply 491 * 7, then add the two zeros onto the end of the answer because it's 700, not 7)
20: 5n = 3,175 ; n = 635 (divide both sides of the equation by 5)
22: See pictured below
After that, 2/3 is equal to 0.66666666666, which we can round to 67%
Even though it is not an even, you said "14 - 23" so here is 23 as well:
230, 240, 250, 260, 270, etc
/\
256 is inbetween here
It is above 5, so the answer is C 260
Solve: ƒ(x) = 2x(x + 1)(3x − 1)
1 and -3
0, 1, and -3
0, -1 , and 3
None of these choices are correct.
Answers
Answer: Answer in Photo
Henry has 15 lawns mowed out of a total of 60 lawns what percent of the lawn so does Henry still need to mow
Answers
Answer:
45 lawns
Step-by-step explanation:
If you subtract 60-15 it will give you 45
HELP !
Which product is negative?
06.(-2).(-3). 1
O-7.(-3).(-5).(-8)
-3.(-4).(-9). 0
0 -2.(-4)-8.(-1)
Answers
Answer:
it's the 0-7
Step-by-step explanation:
because all of the numbers are negative and if you have negative and positive numbers the product will just be positive
Please help!! GEOMETRY
Answers
Answer:
x = 70
Step-by-step explanation:
The 70-degree angle is a verticle angle to x, meaning, they are equal in measurements.
Can someone please help me in 33 and 36!!
Answers
Answer:
33. x=4
This is because 2 and 14 equal 16 which is divided by 4 to sove for x. that is why that equals 4.
36. 60 degrees
180 divided by the 3 angles a triangle has equals 60.
Answer:
33. 4x=2+14
4x= 16
4x/4= 16/4
x= 4
36. 180° = the sum
to find one angle 180/3 since they're 3 angles in a triangle
180/3= 60°
can you guys do 1 and 3 for me
Answers
Answer:
1) DE = 18
3) [tex]x=18[/tex]
Solve for x:
[tex]x=18[/tex]
Step-by-step explanation:
1) [tex]19-1=18[/tex]
3) [tex]2x-32+2x-23=4x-55;4x-55=17;x=18[/tex]
Tip:
DE + EF = DF = 19
IJ + JK = IK = 17
- 8/9x - 4/45x + 1/5x = - 70
Answers
Answer:
x = 90
Step-by-step explanation:
- [tex]\frac{8}{9}[/tex] x - [tex]\frac{4}{45}[/tex] x + [tex]\frac{1}{5}[/tex] x = - 70
Multiply through by 45 ( the LCM of 9, 45, 5 ) to clear the fractions
- 40x - 4x + 9x = - 3150 , that is
- 35x = - 3150 ( divide both sides by - 35 )
x = 90
i need the original slope and parallel slope
Answers
Answer:
Slope is -2/3
Parallel slope is the same just draw another line with the same slope but a different y-intercept
Step-by-step explanation:
!30 points! Which angle corresponds to angle N? (Photo attached)
A. N
B. O
C. O'
D. P'
Answers
Answer:
The answer is D. "P". hope this helps you
Answer:
I believe the answer is A
Step-by-step explanation:
65 + = 180 complete the steps to find the value of x
Answers
x = 115
Step-by-step explanation:
180 - 65
115
115+65 = 180
x = 115
Plz help fast
I will mark Brainlyist
Answers
Answer:
its side angle side
Step-by-step explanation:
the sides are equal and the angle in between is the same
can you plz find this witj equation
Answers
Explanation:
Pr-6p^2r,3p^2r-2pr, 2pr-p^2r
Collect like terms so:
Pr-3p^2r-2pr,2pr-p^2
Pr-4p^2+2pr
-4p^2r+3pr
-3p^2r-p^2= -4p^r
Pr+2pr=3pr
I hope that explains it, if you still don’t understand it let me know and I’ll try explaining it better.
Find the missing side of each triangle. Round your answers to the nearest tenth if necessary. (Please Show your work)
Answers
Answer:
12.2 mi
Step-by-step explanation:
We need to use the Pythagorean theorem, we can use the equation A^2 + B^2 = C^2 then get the square root of the answer
plugging in the numbers with the equation we get the equation:
10.6^2 + 6.1^2 = c^2
then we multiple the available numbers by their exponents we get:
112.36 + 37.21 = c^2
Adding the numbers together we get:
112.36 + 37.21 = 149.57
Get the square root of 149.57 (Since the earlier equation was just everything squared) we get:
12.2298814385
Round it to the nearest tenth as directed, then we get:
12.2
The answer is 12.2 mi
___________
[tex] \: [/tex]
[tex]\boxed{ \rm{answer \: by \: { \boxed{ \rm{☆HayabusaBrainly}}}}}[/tex]
Step by step :x² = (10,6)² + (6,1)²
x² = 112,36 + 37,21
x² = 149,57
x = 12,22mi✔
The record time for running the Boston Marathon is 2.12 hours at an average speed of 12.5 miles per hour. What distance does the Boston Marathon approximately cover?
Answers
Answer:
26.5 miles.
Step-by-step explanation:
Given: Time for running Boston Marathon= 2.12 h
Speed= 12.5 mph
Distance covered in Boston Marathon
Distance covered= speed x time
Distance covered = 12.5 x 2.12=26.5 miles
∴ Distance covered in the Boston Marathon is 26.5 miles.
Answer:
26.5
Step-by-step explanation:
You have two numbers. Do you think you should add, multiply, substract, or divide..?
Multiply, 2.12 x 12.5 on paper or a calculator and you will get 26.5.
Which relation represents a proportional function?
(O) The cost of a pizza from Marco’s Pizza is $10 plus $4.50 delivery fee.
(A) The cost of a cheese pizza from Pizza Hut is $8 plus $1.50 for each topping.
(E) The cost of a pizza from Domino’s is $13, including delivery.
(I) The cost of a pizza is $12 from Little Caesar’s with a coupon for $2 off.
Answers
16 out of 25 dog owners prefer walks. What percentage of dog owners prefer walks?
Answers
This would give you 64 percent
16/25 is 64%
64% of owners prefer walks
What is the solution to the system of linear equations? 2x + 3y = 3 3x + 5y = 5 Enter you answer into the boxes.
Answers
Answer:
x = 0
y = 1
Step-by-step explanation:
2x + 3y = 3 Multiply this equation by 3
3x + 5y = 5 Multiply this equation by 2
3(2x + 3y = 3)
6x + 9y = 9
2(3x + 5y = 5 )
6x + 10y = 10 Notice the xs are the same.
6x + 9y = 9
6x + 10y =10 Subtract
- y = - 1 Multiply each side by -1
y = 1
2x + 3y = 3
2x + 3*1 = 3
2x = 0
x =0
I already answered this, but I ain't sure ‘bout the answer that I got. So, I need clarifications, can you solve this for me please?
Answers
[tex]35x( \frac{3}{7} = \frac{1}{5} + \frac{1}{x} ) \\ = > 35x \times \frac{3}{7} = > 35x \times \frac{1}{5} + 35x \times \frac{1}{x} \\ = > 5x \times 3 = 7x + 35 \\ = > 15x = 7x + 35 \\ = > 15x - 7x = 35 \\ = > 8x = 35 \\ = > x = \frac{35}{8} \\ = > x = 4.375[/tex]
Answer:x = 4.375