John had a rock that weighed 128 kg. The scale he used to weigh the rock has a percent error of 2%. Which could be measured weights of the rock?
Answers
Answer:
a
Step-by-step explanation:
Related Questions
What is the y-intercept of y = 4x?
Answers
Answer:
It depends on what x is
Step-by-step explanation:
I cant help
Answer:
0
Step-by-step explanation:
well if its just 4, then that means it doesnt have a y value
triangle ABC ~ triangle XYZ , where AB = 18 cm, BC = 30 cm , and CA = 42 cm . The longest side of triangle XYZ is 25.2 cm. What is the perimeter of triangle XYZ ?
Answers
Answer:
The perimeter of triangle XYZ is 54 cm
Step-by-step explanation:
In similar triangles, their corresponding sides are proportional, which means the ratios of the corresponding sides are equalTheir perimeters have the same ratio as their corresponding sides, which means P1 = r × P2, where r is the ratio of similarityTheir areas have the square of the ratio as their corresponding sides, which means A1 = r² × A2∵ Δ ABC is similar to Δ XYZ
∵ The longest side in Δ XYZ is 25.2 cm
→ That means its corresponding side in Δ ABC is the longest side
∵ AB = 18 cm, BC = 30 cm, CA = 42 cm
∴ The longest side in Δ ABC is CA
∴ CA is the corresponding side of the side of length 25.2 cm
∴ The ratio of similarity = [tex]\frac{25.2}{42}[/tex] = 0.6 ⇒ (r)
∵ The perimeter of Δ ABC = AB + BC + CA
∴ The perimeter of Δ ABC = 18 + 30 + 42
∴ The perimeter of Δ ABC = 90 cm
→ Use the 2nd fact above
∵ P of Δ XYZ = r × P of Δ ABC
∵ r = 0.6 and P of Δ ABC = 90
∴ The perimeter of Δ XYZ = 0.6 × 90
∴ The perimeter of Δ XYZ = 54 cm
What is the slope of the line through (0,5) and (-2,-1)?
Answers
Answer:
c
Step-by-step explanation:
the slope is 3
Rise over run. You rise 3 points to get to the other, and run over one. Hope this helps.
List some of the valid reasons that can be used in a proof:
Answers
Answer:
Experiment results, and more results!
They help a LOT!
Step-by-step explanation:
Marking brainlesssss!!
Answers
Answer:
I think the answer is C. 6.75
Answer:
6.75
Step-by-step explanation:
Simplify 45 / 3 + 2 * 8 - 12 + 42
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Answer:
61
Step-by-step explanation:
Pressure is force divided by area calculate the force when the pressure is 18N/m^2
Answers
Answer:
hi
Step-by-step explanation:
1+1=2
solve for the variable
x-2= -5
7+x=11
-12+x=1
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2. X=4
3. X= 13
A 150-foot fence encloses a garden.What is the length of each side of the garden.
Answers
Answer:
15 ft 45 ft 30 ft 60 ft
Step-by-step explanation:
What is the difference between a histogram and a bar graph?
a A histogram presents information in horizontal bars, while a bar graph presents information in
vertical bars
b. A histogram deals with data which displays a normal distribution, while a bar graph deals with
data in any distribution
c. There is no difference. The two terms are synonymous.
d. A histogram deals with continuous data in ordered columns, while a bar graph deals with
discrete data in separate columns
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Answer:
d.
A histogram deals with continuous data in ordered columns, while a bar graph deals with discrete data in separate columns.
Step-by-step explanation:
what5 is 12.4 x -1.35
Answers
Answer: -16.74
Step-by-step explanation:
Answer:-16.74
Step-by-step explanation:
Find the percent of decrease from 27 to 18.
PLEASE HELP
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-33.33333333333333 %A change from 27 to 18 represents a negative change (decrease) of -33.33333333333333%
Use the formula found below on this webpage to find the percent changeby replacing the given values:Percent change = New - Old|Old| 100%Percent change = 18 - 27|27| x 100 = -927 x 100 = -33.33333333333333decrease)
Where: 27 is the old value and 18 is the new value. In this case we have a negative change (decrease) of -33.33333333333333 percent because the new value is smaller than the old value.
The Answer is: -33.33333333333333% or 33.3Every Wednesday, Wayne works out for 3/4 of an hour at the fitness center. Every Saturday, he goes to the fitness center again and exercises for 3 times as long. How much time does Wayne spend at the fitness center in all each week?
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45 * 3 = 135 minutes
135 + 45 = 180 minutes
He spends 180 minutes or 3 hours
Every Wednesday, Wayne works out for 3/4 of an hour at the fitness center. Every Saturday, he goes to the fitness center again and exercises for 3 times as long. How much time does Wayne spend at the fitness center in all each week?
Answer:
3 hours (or 180 minutes)
Step-by-step explanation:3/4 of an hour = 45 minutes
45 minutes × 3 = 135 minutes or 2 hours and 25 minutes
2 hours and 25 minutes + 45 minutes = 3 hours (180 minutes)
can you please help me with this problem 2x + y = -9
Answers
Answer:
x = -9/2 - 1/2y
Step-by-step explanation:
2x + y = -9
2x = -9 - y
x = -9/2 - 1/2y
1/2(x+2)=5(x+2) solve the following completely
Answers
Answer:
X is equalled to '' - 2''
Step-by-step explanation:
If you need an explanation, leave a comment ;) As my hand writing is very messy. I'll write it here if you want.
Cheers! :)
Which is the value for 54 . 3 ÷ 10 0 54.3÷100? A. 0.543 B. 5.43 C. 54.3 D. 543
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Answer: The answer is acually 54.3
Step-by-step explanation: cause I did it
2.(X+3) > 5. (3x + 1)
Answers
Answer:
3x+1 > 7
Step-by-step explanation:
x+3 > 5
x > 5-3
x > 2
3(x)+1
= 3(>2)+1
= 3x+1 > 7
Hope this helped!
Will mark brainliest! Please help me! Ty!
Answers
Answer:
2.21
Step-by-step explanation:
2.96-0.75
Hope this helps.
Please tell me the answer
Answers
Answer:
(-∞,∞) Bottom answerI hope this helps you with your algebra
Answer:
Infinity
Step-by-step explanation:
Give brainiest to the other guy/girl they deserve it!!
(Hope dis helps!!!)
Michelle jumps from a plane at an altitude of 1000 m. After 10 seconds her parachute opens. The graph shows the relationship between the distance traveled and time. How long does it take for her to be half way between the plane and the ground? (1 point)
Continuous graph with the y axis labeled Distance (m) and the x axis labeled Time, min. The function consists of 3 lines, the first is almost vertical with a positive slope connecting the points 0,0, to approximately 1 of 6, 250. From that point the second line connects to the first and passes through the points 1,500, 2,800 and 2 1 over 3, 1000. From that point the function is horizontal.
a
40 s
b
1 min
c
1 min 20 s
d
1 min 40 s
Answers
Answer:
B
Step-by-step explanation:
If you look at the graph/chart, it starts at 1,000, so half of that is 500, so you go down to 500, and go straight down to see the number of time under it (In this case, is 1 minute) so you know it is one minute
On a map, 1 inch represents 100 feet. How many inches would
represent 350 feet? (Hint: answer will be a decimal) *
Answers
Answer:
3.5
Step-by-step explanation:
3.5 inches would represent 350 feet.
Inches and feetRelationship between inches and feet is that one inch is equal to [tex]\boldsymbol{100}[/tex] feets as per the map.
So,[tex]350[/tex] feet represent [tex]\frac{350}{100}=3.5[/tex] inches.
Therefore, [tex]\boldsymbol{3.5}[/tex] inches would represent [tex]350[/tex] feet in decimal.
Find out more information about inches here:
https://brainly.com/question/9300770?referrer=searchResults
A pre-image arrow pointing east is rotated 135° clockwise. In which direction is the image arrow pointing?
Answers
Answer:
Southwest.
Step-by-step explanation:
East clockwise 90 degrees is South
South clockwise 45 degrees is Southwest
PLS GIVE BRAINLIEST
Think about it.
Starting on the x-axis at 0° we move in a CLOCKWISE direction and stop in quadrant 3 at 135°.
We travel in the SOUTHWESTERN direction.
En la casa de la familia de Trevor viven 6 personas (incluyendo a Trevor) y hay 3 baños. En el último mes, cada
persona se bañó durante un promedio de 480 minutos y utilizó un promedio de 72 litros de agua al bañarse
(en todo el mes). El agua cuesta 0.20 dólares por litro.
¿Cuánto dinero gastó la familia de Trevor en total en agua al bañarse el mes pasado?
dólares.
Answers
Answer:
La familia de Trevor gastó 86.4 dólares al bañarse en todo el mes.
Step-by-step explanation:
El costo del agua viene dado por:
[tex] C = \$0.20/L [/tex] (1)
Y cada persona de la familia de Trevor gasto en promedio 72 litros de agua. Si la familia tiene 6 integrantes (incluido Trevor) entonces:
[tex] A = 72 L*6 = 432 L [/tex] (2)
Entonces, toda la familia usó 432 litros de agua en promedio en todo el mes.
Para saber el dinero total gastado por la familia debemos multiplicar la ecuación (1) y la ecuacion (2):
[tex] C = \$0.20/L*432 L = \$86.4 [/tex]
Por lo tanto, la familia de Trevor gastó 86.4 dólares al bañarse en todo el mes.
Espero que te sea de utilidad!
Usando proporciones, hay que la familia de Trevor gastó 86.4 dólares en total en agua al bañarse el mes pasado.
En la casa, hay 6 personas.Cada persona utilizó un promedio de 72 litros de agua.Por eso, en todo, 6 x 72 = 432 litros de agua fueron usados.
Cada litro cuesta $0.2. De esa forma, el total de dinero gasto es de:
T = 0.2 x 432 = 86.4.La familia de Trevor gastó 86.4 dólares en total en agua al bañarse el mes pasado.
Un problema similar es dado en https://brainly.com/question/20453191
determine the linear factors 18x^3-34x^2+16x
Answers
Answer:
good luck tho oh and dont forget to tell me the answer
Step-by-step explanation:
Answer:
2x(9x - 8)(x - 1)
Step-by-step explanation:
what is 3x^2+4-6x^2-18x+15=
Answers
Two rectangular boxes have the same volume. One box is a cube, and the other box has dimensions 8 ft by 4 ft by 16 ft. How many feet long is an edge of the cube?
Answers
Answer:
8 feet
Step-by-step explanation:
All you have to do is find the area of one box and find the root to find the cube edge, as it says they have the same volume.
Lets find the volume of the rectangular box.
8 x 4 x 16 =
32 x 16 =
512.
The volume of the cube is 512 feet cubed, but you are looking for the edge.
The edge cubed should be equal to 512 feet cubed.
So 512 cube root is 8, because 8 x 8 x 8 is 512.
8 feet.
Hope this helps!
Answer:
The answer to your question is 2744 ft³
Step-by-step explanation:
Data
length = 14 ft
width = 14 ft
height = 14 ft
- Volume of a Cube
Volume = length x width x height
-Substitution
Volume = 14 x 14 x 14
-Simplification
Volume = 2744 ft³
Conclusion
The volume of this cube is 2744 ft³
Solve 3/5k-5=7/10k by eliminating the fraction. Explain how you determine what to multiply each term by and all the steps to solving the equation.
Answers
9514 1404 393
Answer:
k = -50
Step-by-step explanation:
The fraction denominators are 5 and 10. The least common multiple of those values is 10. This means we can eliminate fractions by multiplying both sides of the equation by 10:
6k -50 = 7k
Subtracting 6k from both sides of the equation leaves you with the solution:
-50 = k
In triangleABC, a = 1.4 cm, b = 1.5 cm and c=1.5 cm. Find the measure of angleA to the nearest 10th of a degree.
Answers
Answer:55.6
Step-by-step explanation:
Answer:
55.6
Step-by-step explanation:
What expression represents the decimal 72.603
Answers
Answer: 7 x 10 + 2 x 1 + 6 x 1/10+ 3 x 1/1000
Step-by-step explanation: just had this question on the test
If g (x) = 3x – 2, find g (8) – g(-5)
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Answer:
I hope this helps you with your question