Which statement cannot be justified by one of the properties of real numbers?
A. (a + b) + c = a + (b + c)
B. a – (b÷c) = (a – b) ÷c
C. (ab)c = a(bc)
D. (a + b) + 0 = 0 + (a + b)

Answers

Answer 1

Answer:

B

this answer for this question


Related Questions

the formula for the area of a triangle is 1/2bh=A. Which of the not a first step to rearrange this formula to find to find the base of the triangke?

Answers

Answer:

base=area=1/2b×h

Step-by-step explanation:

it's a pleasure to help you goodbye. if I'm wrong tell me right away.

Which of the following would have the same graphic representation as the function
f) = 16.2^x? Select all that apply.

Answers

Answer:

the first on and the 4th one

Step-by-step explanation:

if 70kg is 20% of peter's weight, then what is peter's total weight? ​

Answers

Answer:

14

Step-by-step explanation:

20\100×70=14........

solve for x
3x + 7 = -2​

Answers

Answer:

x = -3

Step-by-step explanation:

1. Write the equation

3x + 7 = -2

2. -7 from both sides

3x = -9

3. Divide 3 from both sides to get x alone

x = -3

Answer:

Hello There!!

Step-by-step explanation:

3x+7=-2 (-7 from both sides)

-7 -7

3x=-9 (divide by 3 from both sides)

÷3 ÷3

x=-3

hope this helps,have a great day!!

~Pinky~

Someone answer this please coreectly!!

Answers

Answer:

7 and 8

Step-by-step explanation:

[tex]7^{2} =49\\\\8^{2} =64[/tex]

Find the acceleration. I don’t understand this, please help

Answers

Answer:

At t = 9, Whitney's acceleration will be -0.2 miles per minute.

Step-by-step explanation:

Remember that the acceleration is the derivative of velocity.

Since we want to find Whitney's acceleration at t = 9 and we are given the velocity function, we can simply find the derivative of the point at t = 9. In other words, a(9) = v'(9).

For the interval (7, 11), we simply have a line. So Whitney's acceleration at t = 9 will be equivalent to the slope of that line.

We have the two points (7, 0.8) and (11, 0). So, the slope between them is:

[tex]\displaystyle m=\frac{0-0.8}{11-7}=\frac{-0.8}{4}=-\frac{1}{5}[/tex]

So, a(t) = v'(t) = -0.2 ∀t ∈ {t | 7 < t  < 11}. Then at t = 9, Whitney's acceleration will be -0.2 miles per minute.

convert 2 miles to centimeters.
express your answer in scientific notation

Answers

Answer:

To convert miles to cm, multiply the mile value by 160934.4. For example, to find out how many centimeters there are in 2 miles, multiply 2 by 160934.4, that makes 321868.8 cm in 2 miles.

multiply 2 by 160934.4, which is

321868.8 cm in 2 miles.

How do you change miles into centimeters?

To convert a mile to a centimeter, multiply the length by the conversion ratio. The length in centimeters is equal to the miles multiplied by 160,934.4.

The distance in km is equal to the distance in miles multiplied by 1.609344. Since 1 mile is equal to 1.609344 km, that's the conversion ratio used in the formula.

Learn more about distance conversion here

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Evaculate 7/13×8/11. Will be marked brainliest

Answers

Answer:

hahahah Evaculate thats so funny but its 0.3916083916

Step-by-step explanation:

Mia removes the plug from a trough to drain the water. The volume, in gallons, in the trough after it has been unplugged can be modeled by the expression 10x2 −19x + 6, where x is time in minutes. Choose the appropriate form of the expression that would reveal the time in minutes when the trough is empty.

Answers

Answer:

(5x − 2)(2x − 3).

Step-by-step explanation:

Question 7 of 19
A right cylinder has a radius of 4 and a height of 11. What is its surface area?
A. 1527 units2
B. 887 units2
C. 120 units2
D. 607 units2
SUBMIT

Answers

C, 120 units2 is the answer

At the time of her​ grandson's birth, a grandmother deposits $2000 in an account that pays 6.5% compounded monthly. What will be the value of the account at the​ child's twenty-first​ birthday, assuming that no other deposits or withdrawals are made during this​ period?

Answers

Answer:

$41, 863. 50

Step-by-step explanation:

$2000 - 6.5% = $1,993.50

$1,993.50 x 21 = $41, 863. 50

how to find the range in a dot plot

Answers

Answer:

By examining the line plot, we find the number with the maximum number of crosses or occurrences. This gives the mode of the data set. We find the smallest and the largest number from the data set and find their difference and this difference is the range of the given data set.

Step-by-step explanation:

A positive number
plus a negative
number is negative
Answer
Ans:
Explanation
Expl

Answers

Answer:

it depends on the larger number

Step-by-step explanation:

A positive and a negative is the same as subtracting

ex: 7 + (-2) = 7 -2 = 5

ex: -7 + 2 = 2-7 = -5

Answer:

-5 + 6=1

but

-6+5=. -1

Step-by-step explanation:

it depends , if the negative number is lesser than the positive then the answer will be in the positive, but if the negative number is greater than the positive it is a negative

7. Construct Arguments Harriet says that it
is not possible to draw a quadrilateral that
is not a trapezoid and not a parallelogram.
Is Harriet correct? Explain why or why not.

Answers

Answer:

She is not correct because trapezoid and parallelogram are not the only type of Quadrilaterals.

Step-by-step explanation:

Quadrilaterals are basically 4 sided shapes. Examples include Square, rectangle, rhombus, parallelogram, trapezoid, kite e.t.c.

Now, Harriet is saying that it

is not possible to draw a quadrilateral that is not a trapezoid and not a parallelogram. This statement is wrong because aside trapezoid and parallelogram, I have listed other types of Quadrilaterals above that can be drawn.

y=x^2-10x-5
what’s (x,y)

Answers

Answer:

(5, -30)

Step-by-step explanation:

Judy bought 20 apples at the store, and the total weight was 2 kilograms. If the apples all had about the same weight, how much did each apple weigh?
100 grams
200 grams
2,000 grams
500 grams

Answers

Answer:

100 grams

Step-by-step explanation:

Because I listened to someone on this question with the answer being 200 grams but it was wrong and the correct answer is 100 grams.

Need help with this if possible ​

Answers

Answer:

hope it helps...

Step-by-step explanation:

Part A
Redcross Cab Taxi charges a $1.75 flat rate in addition to $0.65 per mile (m).
​​Katie has no more than $10 to spend on a ride.
​Write an inequality that represents Katie’s situation.

Part B
How many miles can Katie travel without exceeding her limit?
A- m≤11
B- m≤12
C- m≤10
D- m≤13

Answers

Answer:

A. 10 is less than or equal to 1.75+0.65m

B. D

Step-by-step explanation:

Which of the following equations could be solved to determine the length of RS?

Answers

Answer:

[tex] \frac{Sin(80)}{RS} = \frac{Sin(52.5)}{7} [/tex]

Step-by-step explanation:

Given:

S = 52.5°

s = QR = 7

Q = 80°

q = RS = ?

Required:

Equation that could be used to find the length of RS

Solution:

We would need the law of Sines which is given as:

[tex] \frac{Sin(A)}{a} = \frac{Sin(B)}{b} = \frac{Sin(C)}{c} [/tex]

Applying the Law of Sines, we would have the following equation:

[tex] \frac{Sin(Q)}{q} = \frac{Sin(S)}{s} [/tex]

Plug in the values

[tex] \frac{Sin(80)}{RS} = \frac{Sin(52.5)}{7} [/tex]

Therefore, the equation that can be used to determine the length of RS is [tex] \frac{Sin(80)}{RS} = \frac{Sin(52.5)}{7} [/tex]

HELLLLP ! What is the area of the triangle below?
4
18
A. 72 sq. units
B. 16 sq. units
C. 36 sq. units
D. 32 sq. units
HELP !!!

Answers

36! use the formula A=1/2bh

What’s the answer to question 1,2,3,4?

Answers

Answer:

1. y=0

2. y=2

3. y=4

4. y=-2(-4)-4

=32

Answer:

y = 2x

x = 0

y = 2*0 = 0

Answer: 0

x = 1

y = 2*1 = 2

Answer: 2

x = 2

y = 2*2 = 4

Answer: 4

y = -2x - 4

x = -4

y = -2*-4  - 4 = 8 - 4 = 4

Answer: 4

Step-by-step explanation:

ZABD and ZDBC are supplementary angles.
What is the measure of x?
x = [?]°
DK
Х
AK
140°
B
>C
Angles are not drawn to scale.
Enter

Answers

Answer:

the answer would be 40

Step-by-step explanation:

supplementary angles are 180

180-140=40

x=40

Help ASAP!!!!!! Plzzzzzz

Answers

Answer:

2nd option

Step-by-step explanation:

a school has 900 students. 1/6 of the students in the school are in year 7. 2/5 of the year 7 students are going on a trip to the castle. how many year 7 students are going on the trip?

Answers

Answer: 12 students

Step-by-step explanation:

1/6 of 900 is 30 kids. and 2/5 of the 30 kids is 12

Adam thinks of a number.
He multiplies it by 8, adds 6 and then divides it by 2.
He ends up with 131.
What was the number he started with?

Answers

He started with the number 32. You just have the do the opposite of the steps using the end result, 131 (131 MULTIPLIED by 2, instead of divided). Hope this helps.

The number Adam started with is 32.He ends up with 131.

Let's denote the number Adam started with as "x." After multiplying by 8, we have 8x.

He adds 6 to the result.

The expression becomes 8x + 6.

He divides the result by 2.

The expression becomes (8x + 6) / 2.

The final result is 131.

Setting up the equation:

(8x + 6) / 2 = 131

To find x, we can solve this equation.

Multiplying both sides by 2:

8x + 6 = 262

Subtracting 6 from both sides:

8x = 256

Dividing both sides by 8:

x = 32

Therefore, the number Adam started with is 32.

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What is the equation of the given line?
A. Y = -4x
B. X = 4
C. X = -4
D. Y = -4

Answers

The answer is D. Y=-4.

Explanation-
The equation goes across the Y axis not the X axis, therefore, you can eliminate B and C. There also is no slope so there should be no variable after the number. You can also eliminate A from there. Leaving you with the correct answer, D.

9. Which of the following statements is the best description for the data in 1 point
Question 8?
.. +
1.
N-00
+
10
0
4
6
8
12
14
16
DOLLARS OF ALLOWANCE EACH WEEK
A. The data is spread out and skewed left
O B. Most of the data is far from the median and skewed right.
O C. The data is symmetrical and close to the median.
D. The data is spread out with $5 being the most common weekly allowance.

Answers

Answer:

D

Step-by-step explanation:

It cant be a because theres also dots in the right too

it cant be b because they are not far from the median and not skewed right

it cant be c because no way in HELL THAT LOOKS SYMMETRICAL

so its d cause they are literally all over the place

There are 74 milligrams of cholesterol in a 3.9 oz serving of lobster how much cholesterol is in 8 ounces of lobster

Answers

9514 1404 393

Answer:

  151.8 mg

Step-by-step explanation:

Assuming the cholesterol content (c) is proportional to the serving size, we have ...

  c/8 = 74/3.9

  c = 8(74/3.9) ≈ 151.8 . . . . mg of cholesterol

Ms. Basta received a 30% discount on the purchase of a $1,250 laptop. How much did Ms. Basta save?

Answers

Answer:

Ms. Basta saved $375, and the laptop was $875 after the 30% off.

Answer:

$375 dollars

Step-by-step explanation:

since she recived a 30% discount on the product, we are looking for 30% of 1250, which is 375. So Ms. Basta saved $375 dollars.

Determine if the three side lengths given can create a triangle or not. Prove it by working out the inequality.

25cm, 13cm, 14cm

a. yes a triangle can be constructed
b. no a triangle can not be constructed

Answers

Hello, I Am BrotherEye

Answer:

A. Yes a triangle can be constucted

Step-by-step explanation:

All you have to do is use the Triangle Inequality Theorem, which states that the sum of two side lengths of a triangle is always greater than the third side. If this is true for all three combinations of added side lengths, then you will have a triangle.

~

BrotherEye

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Which of the following is an example of an application ? i know this is kinda long but,Fact: In 1790 the South seemed to be an underdeveloped agricultural region with little prospect for future growth. Comparison or Contrast: ____________________ 2. Fact: In the colonial period, tobacco was the most profitable crop in Virginia; Georgia and South Carolina produced rice and indigo. Comparison or Contrast: _____________________ 3. Fact: In the late 1700s, a worker painstakingly separated the plants sticky seeds from the cotton fibers by hand, processing about one pound of cotton a day. Comparison or Contrast: _______________________ 4. Fact: By 1860 the Upper South still produced tobacco, hemp, wheat, and vegetables. Comparison or Contrast: _______________________ 5. Fact: In the industrial North, large numbers of people moved to the cities to be near factories and work. Comparison or Contrast: __________________________ 6. 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You notice that there is a rare recessive trait that causes the starfish to have 6 legs instead of 5. Of the 27 starfish you can find, only 1 has 6 legs. What are the allele frequencies for this population pls help me. i'm stuck and don't remember how to do it. will mark brainliest if correct!!!3/4 x = (4/3)(negative 2) For the following right triangle, find the length x Please help, I will give brainliest to correct the answer! Answer honestly and no spamming!?A) Diversitopia is a mid-sized city. It has recently bought a piece of land from a private owner. The farmland is approximately 500 hectares, or 2 square miles, and sits on top of a hill that overlooks a river.The office of city planning and the mayor are accepting proposals for how the land should be used. They are interested in sustainable planning and consider themselves a green city. They would like a project that encourages a diverse community of organisms, protects nutrient cycling, and maintains soil stability. 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