A teacher divides her class into groups and assigns each group the task of measuring the mass of the same object three times. The teacher already knows that the mass of the object is 25 g. Based on the results each group records, which group makes the most precise measurements of the object? A. Group D: 20.0 g, 25.0 g, 30.0 g B. Group A: 28.5 g, 28.4 g, 28.5 g C. Group C: 32.1 g, 35.0 g, 25.0 g O D. Group B: 25.5 g, 25.0 g, 24.8 g SUBMIT​

Answers

Answer 1

Answer:

I think it would be group B due to the fact that they are the closest to 25 g

Step-by-step explanation:

Answer 2

Answer:

B Group A 28.5 g, 28.4 g, 28.5 g

Step-by-step explanation:


Related Questions

I need help my mom is going to kill me

Answers

Answer:

x=8

m<FGH=32

m<HGI=32

m<FGI=64

Step-by-step explanation:

The first thing you're going to do is form an equation using 5x-8 and 6x-16. The reason for this is because the two angles FGH and HGI are congruent. You form an equation by setting the two equal to each other. LIke this:

5x-8=6x-16

Then you will find x which is 8. After you find x just plug in x for one of the equations like so:

5(8)-8=_  or 6(8)-16=_

You only need to plug in x for one of the angles because they are congruent so you will get the same answer.

To find the measurment of FGI you add the values from FGH and HGI together (32+32) and you'll get 64.

Write the nature of roots of the quadratic equation 9x^2 -6x+2

Answers

Answer:

roots are not real

Step-by-step explanation:

Given a quadratic equation in standard form

ax² + bx + c = 0 (a ≠ 0 )

Then the nature of the roots can be found using the discriminant

Δ = b² - 4ac

• If b² - 4ac > 0 then roots are real and distinct

• If b² - 4ac = 0 then roots are real and equal

• If b² - 4ac < 0 then roots are not real

Given

9x² - 6x + 2 = 0

with a = 9, b = - 6, c = 2 , then

b² - 4ac = (- 6)² - (4× 9 × 2) = 36 - 72 = - 36

Since b² - 4ac < 0 then the roots are not real

can you help? 6+(−4 3/4)+(−2 1/8)

Answers

6+(-4 3/4)+(-2 1/8) = -7/8

Answer:

I believe it's -7/8

you have to make the fractions improper first with a common denominator and since -4 3/4 and -2 1/8 are negative and 6 is positive, you come out with -7/8

You have at most $3.65 to make copies for a school project. Each copy costs $0.25. Write and solve an inequality that represents the number of copies you can make.

Answers

The equation for the problem is [tex]0.25x[/tex] ≤ [tex]3.65[/tex]

Hope it helps!

You can make the maximum number of copies would be 14.6 which is determined by the inequality 0.25x ≤ 3.65 where x represents the number of copies.

What is inequality?

Inequality is defined as mathematical statements that have a minimum of two terms containing variables or numbers that are not equal.

What are Arithmetic operations?

Arithmetic operations can also be specified by subtracting, dividing, and multiplying built-in functions. The operator that performs the arithmetic operation is called the arithmetic operator.

You have at most $3.65 to make copies for a school project. Each copy costs $0.25 which is given in the question.

As per the given condition, the required inequality would be:

⇒ 0.25x ≤ 3.65

Here x represents the number of copies

⇒ 0.25x ≤ 3.65

Divided by 0.25 both sides of the inequality, and we get

⇒ x ≤ 3.65/0.25

⇒ x ≤ 14.6

Therefore, you can make the maximum number of copies would be 14.6.

Learn more about inequalities here:

brainly.com/question/20383699

#SPJ2

A box Jelly fish travels at a rate of 6.5 feet per second. What is the distance after 5 seconds?

Answers

Answer:

32.5ft

Step-by-step explanation:

Answer:

32.5 feet per 5 seconds

Step-by-step explanation:

multiply 5 by 6.5 you get 32.5

A number problem states, “–5 times a number, minus 22 gives a result of 23.” What is the number?

Answers

Answer:

im pretty sure its -9

Step-by-step explanation:

the equation explained would look something like this...

-5x-22=23

so you would isolate the variable by first adding 22 to both sides and the dividing by -5 on both sides

-5x-22=23

    +22  +22

-5x/-5=45/-5

x=-9

-5x -22=23
+22 +22
-5x = 45
—————
-5x -5x

X=-9

Diana usually drives at average rate of 30 mph.

If Diana drives with the average rate x mph, how long would it take her to get to Tony's house?

Answers

Answer:

12/x hours

Step-by-step explanation:

d=12

s*t=d

t=d/s

t=12/s

Hope this helps pls if it help u mark me BRAINLIST pls thank u.

Answer:

12

Step-by-step explanation:

no

Please help me it would mean a lot

Answers

42.5 i think

The whole angle is 127 minus the angle we know (32) this leaves us with 85 for the rest of the angle but we still have to deal with the angle bisector so we divide it by 2 leaving us with 42.5 I'm pretty sure.

PLEASE HELP ASAP!!!!!!!!!! YOU WILL GET BRAINLEST!!!!!!!!!!!!!!!!

The model represents an equation. What value of x makes the equation true?
A) 3/4
B) 9/2
C) −3/4
D) −9/2

Answers

Answer:

I am not completely sure I think it is A im not positive but I think

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

On the left, we have 7 -Xs and 7 1s. So, the left can be represented by the expression:

[tex]-7x+7[/tex]

On the right, we have 5 (positive) Xs and 16 1s. So, the right can be represented by the expression:

[tex]5x+16[/tex]

They are equal to each other. So:

[tex]-7x+7=5x+16[/tex]

Solve for x. Add 7x to both sides:

[tex]7=12x+16[/tex]

Subtract 16 from both sides:

[tex]-9=12x[/tex]

Divide both sides by 12:

[tex]x=-9/12[/tex]

Reduce:

[tex]x=-3/4[/tex]

So, our answer is C.

3х – 2
= 2х – 8
4

I don’t know how to do this

Answers

Answer:

x=17.2

Step-by-step explanation:

here a picture of how i did it cause its hard to expialn

Endpoint: (-8, -10), midpoint: (10,-7)

Answers

Answer:

(28,-4)

Step-by-step explanation:

Solve the system x+2z=30 y+z=12 z=1

Answers

Answer:

x=28 y=11 z=1

Step-by-step explanation:

plug in 1 for z in x+2z=30 to get x+2(1)=30. Then you should get x+2=30 which is x=28.

Then, plug 1 in for the second equation of y+z=12 so you get y+1=12. Then you should get y=11.

Some one help me please..?

Answers

Answer:

x = -18

Step-by-step explanation:

3 + -18 = -15

Answer:

the answer is d

Step-by-step explanation:

collect the like terms

Explain how you would solve for the value of x when you are given the solution to a function.

Answers

Answer:

Substitute

Step-by-step explanation:

Substitute the values given in the function

and you will get the answer.

P.s. It depends on the question

A grocery store owner is planning a display by stacking cans of soup in a pyramid. The top row of the stack will have 1 can, the row underneath it will have 3 cans, the row underneath it will have 5 cans, and so on. If the owner wants the display to have a total of 12 rows, then how many cans will he need?

Answers

Answer:

144?

Step-by-step explanation:

1+3+5+7+9+11 blah blah blah...

1+3+5+7+9+11+13+15+17+19+21+23 which gives 144.

-5(-6k + 10) =
Help ASAP

Answers

Answer:

30k - 50

Step-by-step explanation:

-5 (-6k + 10)

= 30k - 50

Help me with algebra 1 core if its the right answer i'll make you the brainliest! Help me ASAP please i'll give some extra points.

Answers

Answer:

y=3x

Step-by-step explanation:

y=3x

the line passes through the origin so when x=0, y=0

A plumber earns $50 for a repair job, plus an additional $75 per hour he works. On Tuesday, he completed 3 repair jobs and earned a total of more than $600. Part A: Write an inequality that can be used to determine h, the number of hours the plumber worked Tuesday.

Answers

Answer:

[tex]150 + 75h > 600[/tex]

Step-by-step explanation:

The inequality that can be used to determine h is shown below:-

As per the given situation,  it is mentioned that a plumber could earns $50 for a repair job, so for three jobs he earned $150 as a total amount

Now

We presume h be the number of hours

Also he earns additional $75 per hour worked so $75

Total amount is $150 + $75h)

The total amount is more than $600

So, the inequality equation is as given below:

[tex]150 + 75h > 600[/tex]

How do I round up this number 86,088

Answers

to the nearest hundredth

Answer:

86,000

Step-by-step explanation:

You look at the 88 and 88 would round up to one, but since 1 is less than four the number becomes 86,000

I can add fractions with unlike denominators. 2/5 + 3/10 =​

Answers

Answer:

7/10

Step-by-step explanation:

2/5 multiply the denominator by 2 which will make it 10. Then multiply the numerator by 2 which will make it 4. So it will be 4/10. Then add 4/10 to 3/0 which makes 7/10.

It takes Caroline 1/5 of an hour to walk a mile. Four of Caroline's friends time themselves on their own walk of different lengths. Which friend is walking at the same rate as Caroline? *
0/1
Captionless Image

Answers

Answer:

Please comment the image, it won't load.

Step-by-step explanation:

Nitrogen and oxygen are the most abundant gases in Earth’s atmosphere. A nitrogen molecule is 0.00000000003 meters larger than an oxygen molecule.

Which statements describe writing 0.00000000003 in scientific notation? Check all that apply.

Answers

Answer:

3 x 10 to the 11th

Step-by-step explanation:

move the decimal to the right, keeping it positive, 11 times to make it 0.3

Answer:

The exponent represents the number of places the decimal moves.

The decimal moves to the right.

The exponent is negative.

Step-by-step explanation:

You need to find two numbers where one number is 4 times as large as the other and where the difference is
the two numbers are 39. What are the numbers?
equation

Answers

x and y
4x = y
y - x = 39
Substitute the value of y in
4x - x = 39
3x = 39
x = 13
4x = y
Y = 52


x = 13 and y = 52. Your welcome and a Brainliest would be much appreciated

What to use? Pick two points from the table and
use the slope formula to find the slope.
Example: The table below has a constant rate of
change. Find the slope.
Х
Y
- 1
4
0
6
1
8
2
10
3
12.
4.
14

Answers

Answer:

The slope is 1/2

Step-by-step explanation:

AS seen in the graph I provided you can see that the points are increasing by 1/2

Which of the following types of numbers is irrational?

A.) a whole number
B.) fractions
C.) the number pi
D.) a decimal that terminates

Answers

Answer:

C

Step-by-step explanation:

the definition of an irrational number is an infinite decimal that has no repeating pattern. rational numbers can be converted into fractions.

A is incorrect because a whole number can be converted into a fraction.

      ex: 1 is also 3/3

B is incorrect because the definition of a rational number is that it can be converted into a fraction.

D is incorrect because a terminating decimal can be made into a fraction.

      ex: 4.5 is also 9/2

Answer:

D)

Step-by-step explanation:

A Irrational number is a decimal that terminates. I hope this helps! Please rate Brainiest!

-Aslina

what is the answer for 2(5/3+3/4)-4/3s​

Answers

Distribute the 2 to the parenthesis:
10/3 + 3/4 - 4/3s

Change the denominator of 10/3 and 3/4 so they are equal. Multiply 10/3 by 4, 3/4 by 3, and 4/3 by 4 to get:
40/12 + 9/12 - 16/12s
49/12 - 16/12s

At Norris Middle School 11 out of 22 students bike to school. At Lewis and Clark Middle School 14 out of 28
students bike to school. Determine whether the ratios are equivalent and explain your reasoning in the
workspace provided.​

Answers

Both ratios are equivalent due to the fact that 11/22 as a simplified fraction makes 1/2 and 14/28 also makes 1/2 if simplified.

someone help me please please please I really need this ​

Answers

Answer:

Step-by-step explanation:

12

rs st tw rt rw sw

13

sr sw tr st tw

14

tr and tw

sr and st

I'll depend on you to add the proper markings on the answer.

Newton has 10 more dimes than nickels. He has
twice the number of quarters than nickels. If he
has $6.20, how many of each coin does he have?

Answers

Given:

Newton has 10 more dimes than nickels.

He has  twice the number of quarters than nickels.

Total amount he has = $6.20.

To find:

The number of each coin.

Solution:

Let the number of nickels be x.

Newton has 10 more dimes than nickels.

Dimes = x+10

He has  twice the number of quarters than nickels.

Quarters = 2x

We know that, 1 nickel = $0.05, 1 dime = $0.10 and 1 quarter = $0.25.

Total amount he has is $6.20.

[tex]x\times 0.05+(x+10)\times 0.10+2x\times 0.25=6.20[/tex]

[tex]0.05x+0.10x+1+0.50x=6.20[/tex]

[tex]0.65x=6.20-1[/tex]

[tex]0.65x=5.20[/tex]

Divide both sides by 0.65.

[tex]x=\dfrac{5.20}{0.65}[/tex]

[tex]x=8[/tex]

Now,

Number of nickels = 8

Number of dimes = 8 + 10 = 18

Number of quarters = 2(8) = 16

Therefore, the number of nickels, dimes and quarters are 8, 18 and 16 respectively.

PLEASE HELP ,,,,1. If AMNP is an equilateral triangle, find the values of x
and y.

Answers

An equilateral triangle is a triangle in which all three sides have the same length[tex].[/tex]

⭆ 14 = 3x - 4

⭆ 3x = 14 + 4

⭆ 3x = 18

⭆ x = 18/3

x = 6

In equilateral triangle, all three internal angles are also same and each are of 60°.

⭆ 5y - 5 = 60

⭆ 5y = 60 + 5

⭆ 5y = 65

⭆ y = 65/5

y = 13

★ Final answer :

x = 6y = 13Hope It Helps!

Answer:

x = 6y = 13

Step-by-step explanation:

equilateral triangle, all sides are equal,

MN = MP

14 = 3x - 4

x = 18/3

x = 6

internal angles are also equal.

5y - 5 = 60    (180/3 = 60)

5y = 65

y = 13

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