Answer:
Percentage of error by Clare is estimated as 4.1667 %
Step-by-step explanation:
Height measured by Clare = 4 feet
Height measured by Doctor = 4 feet, 2 inches
Percentage error = ?
Percentage error = Difference/ Actual height *100
Percentage error = (2/ (4*12))*100
Percentage error = 4.1667 %
The accurate height is measured by Doctor, as he have more accurate measurement system.
Which of the following expressions represent 15% tip on a $20 meal? Which represents the total bill? **Select all that apply**. Explain your reasoning for the choices you select.
A.) 1520
B.) 20+0.1520
C.) 1.1520
D.) 1510020
Answer:
15/100 * 20, because the meal is 20 dollars and to find the percent of something you divide it with 100 so you will divide 15 with 100 and you’ll get 0.15. Then you will times it with the amount the meal cost because thats the charge. So 0.15•20 and you’ll get $3. A 15% tip for a $20 meal is $3.
A pair of sneakers that originally costs $120 is on sale for 60% off. Which of the following is true?
Answer:
Sale price:$48.00
Step-by-step explanation:
Answer:
the answer is $72 also there are no "following" answers are true so there is the answer
What is the area of a circle with a radius of 20 inches?
10π square inches
100π square inches
40π square inches
400π square inches
Step-by-step explanation:
20×20×3.14= I got 1256 inches ²
Which comparison is not correct?
-8 < |-4|
|-2| < |-9|
|-7| > -9 |
8| > |-9|
Answer:
the 2 one is wrong
Step-by-step explanation:
the 2 would be greater than the 9 sense both the numbers are negative and the bigger the negative number is the less amount it is so -9 is smaller than -2
Meghan knows the volume of a cube and wants to calculate the surface area of the cube. Which would be the best first step for Meghan to use?
answer choices
dividing the volume by 6 to get the area of one face of the cube
dividing the volume by 4 to get the length of one side of the cube
finding the square root of the volume to get the area of one face of the cube
finding the cube root of the volume to get the length of one side of the cube
Answer:
finding the cube root of the volume to get the length of one side of the cube - this is the answer - Option D
12 gallons of water are used to completely fill 5 fish tanks. If each tank holds the same amount of water, how many gallons will each tank hold?
Express your answer as a mixed number.
Answer:
2.4 gallons/tank
Step-by-step explanation:
12/5=2.4 gallons
HEY THERE PLZ HELP WITH THE EQUATION!!! THANKS IF U ANSWER
Suppose that a phone that originally sold for $800 loses of its value each year after it is released. After 2 years, how much is the phone worth? Write an equation for the value of the phone, , years after it is released.
Answer:
V=800-Y
V=Value
Y=years
Where are my fellow Bi Queens/Kings???<333
Im trying to do IXL and I dont understand the way my teacher teaches (ironic right?)
Can you please help?
the points (p,3) and (-4,-4) fall on a line with a slope of 1/2. What is the value of p?
Answer:
the value of p is 0
Step-by-step explanation:
i use desmos testing calculator but they have a graph option and i just plugged in the (-4, -4) and put the 3 in the y and put random numbers in the x that would fit the slope line of 1/2 (i hope that makes sense)
i need help, this is over due and i need to get it done and I have no ide what I'm doing
Answer:
I have the answers, we did this homework.
Help me PLEASEEEEEEEEEEEE :C
Answer:
A. 525 in squared
Step-by-step explanation:
Fundamentally, the area of a parellelogram such as this can be calculated the same way the area of a normal rectangle is calculated: Length x Width.
Thus,
(27 + 8) x 15 = Area
35 x 15 = Area
525 = Area
Don't forget your units! (Inches squared)
Pls help with this questions
A high school track is shaped as a rectangle with a half circle on either side. Jasmine plans on running three laps. How many yards will Jasmine run? Use 3.14 for Pi.
A. 248.5 yd
B. 490.5 yd
C. 725.5 yd
D. 745.5 yd
Step-by-step explanation:
= 25 yards ; r = 25/2 = 12.5 yards
circumference of two semicircle = circumference of circle
= 2πr = 2*3.14*12.5 = 78.5 yards
Perimeter of school truck = 78.5 + 85 + 85 = 248.5 yards
Distance traveled by Jasmine = 3* 248.5 = 745.5 yards
Answer:
d
Step-by-step explanation:
i took the test
Louis wants to carpet the rectangular floor of his basement. The basement has an area of 507 square feet. The width of the basement is 1/3 its length.
What is the length of Louis's basement?
plz help i stayed all night thinking about this but still it doesn't click in my brain
Write an equivalent expression for (1.5 + k) +2.25
Answer:
k+3.75
Step-by-step explanation:
The equation can be simplified to k+3.75:
k+1.5+2.25
k+3.75
what is the answer 8s + 8 + 3st + 4s
Answer:
12s + 8 + 3st
Step-by-step explanation:
Combine like terms:
8s + 4s = 12s
8
3sr
Find the area of the shaded region. Use 3.14 for π. Round to the nearest tenth if necessary. Whats the label?
Answer:
460
Step-by-step explanation:
yeg
Answer:
Step-by-step explanation:
3.14(10²) - 3.14(6²)
3.14(10² - 6²)
3.14(100 - 36)
3.14(64)
200.96
201
i think
It takes Marvin 2/3 of an hour to to mow 1/2 of his lawn. If Marvin continues mowing at the same rate, how long will it take him to mow his entire lawn?? ( Will mark brainliest)
Answer:
2/3-=40 minutes to mow half his yard
Step-by-step explanation:
80- minutes to mow full yard
Answer: 1hr 20 minutes
Step-by-step explanation:
PLEASE HELPPPP!!!!!!
Answer the following questions.
Answer:
Where is the question to answer on the picture?
Answer:
1. $50,000
2. $75,000
3. $100,000
4. $125,000
sorry this is all I have
Amil is given the equation shown.
x2 + 14x + 37 = 0
He completes the square and rewrites the given equation. Which equation is
equivalent to the given equation?
A.
(x + 7)2 – 12 = 0
B.
(x – 7)2 – 12 = 0
C.
(x + 7)2 + 12 = 0
D.
(x – 7)2 + 12 = 0
The equation equivalent to the Amil equation is (x + 7)² - 12 = 0 thus option (A) is correct.
What is the equation?The definition of an equation in algebra is a mathematical statement that demonstrates the equality of 2 mathematical expressions.
A formula known as an equation uses the same sign to denote the equality of two expressions.
As per the given Amil equation,
x² + 14x + 37 = 0
Add 12 on both sides,
x² + 14x + 37 + 12 = 0 + 12
x² + 14x + 49 = 12
(x + 7)² = 12
(x + 7)² - 12 = 0
Hence "(x + 7)² - 12 = 0 represents the Amil equation's equivalent".
For more about the equation,
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Which of the following angles can be added together to create 177°? Explain your answer using words.
Consider the figures on the coordinate
plane.
Figure
41
Figure A
-2
o
Figura
2
Figure B
Which two figures are congruent?
A. B and C C. A and C
B. B and D D. B and A
Answer:
d B and A
Step-by-step explanation:
:> I need hep with this math thingyyyyyyyyyyyy
Answer:
65 is the answer
Step-by-step explanation:
17+39+29+81+87+99+103=455= A). 65
I hope this helps.
Please help me!!! I’m really struggling!
plz answer
WILL GIVE BRAINLIEST
Answer:
Its the number 3
Step-by-step explanation:
Answer:A
Step-by-step explanation:
Please give brainliest i only need a few more to rank up
5. Which would be a good first step to use to solve this system?
1st equation: y = 6x + 4
2nd equation: 5x + 2y = 12
A. Multiply the first equation by 2, and add the result to the second equation.
B. Substitute 5x + 12 for for y in first equation.
C. Substitute 6x + 4 for x in the second equation.
D. Substitute 6x + 4 for y in the second equation.
Answer:
d. substitute 6x +4 for y in the second equation
A flat-screen television costs $724.89 when it is new. The value of the television is expected to change by −12 3/5% per year. What is the expected value, to the nearest cent, of the television after 4 years?
The solution is $ 422.98
The expected value of the television after 4 years is $ 422.98
What is exponential growth factor?
The exponential growth or decay formula is given by
x ( t ) = x₀ × ( 1 + r )ⁿ
x ( t ) is the value at time t
x₀ is the initial value at time t = 0.
r is the growth rate when r>0 or decay rate when r<0, in percent
t is the time in discrete intervals and selected time units
Given data ,
Let the initial amount of the television be x₀
The value of x₀ = $ 724.89
Now , value of the television is expected to change by -12 3/5 % per year
So , the exponential decay rate of the television is r = -12 3/5 %
The rate r = -63/5 %
The rate r = -12.6 %
The number of years t = 4 years
So , the exponential decay rate of the television after 4 years is calculated from the formula
x ( t ) = x₀ × ( 1 + r )ⁿ
Substituting the values in the equation , we get
x ( 4 ) = 724.89 ( 1 - ( 12.6/100 ) )⁴
On simplifying the equation , we get
x ( 4 ) = 724.89 ( 1 - 0.126 )⁴
x ( 4 ) = 724.89 ( 0.874 )⁴
x ( 4 ) = 724.89 x 0.583506543376
x ( 4 ) = $ 422.978
So , rounding to the nearest cent , we get
The value of x ( 4 ) = $ 422.98
Hence , The expected value of the television after 4 years is $ 422.98
To learn more about exponential growth factor click :
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here is 1-12 of the assignment
help me please with this