Mathematics High School

Describe and correct the error in identifying the property being illustrated .
8+(-21)=-21+8
Associative property

Answers

Answer 1

Step-by-step explanation:

8+(-21)= -21+8

it is not associative property it is commutative property

Related Questions

help me , i’ll give u brainlist

Answers

The cube root of 216 is 6.

A line that passes through ( 3, 1) and 0,3 in y= mx+ b form

Answers

Answer:

y = -0.7x + 3

Step-by-step explanation:

I just used a math app called geo-gebra. Put the points in made a line and bam an answer. Hope this helps!

Evaluate 24−8x when x=−2.

Answers

Answer:

40

Given:

x=-2

Step-by-step explanation:

24−8x

24 - 8(-2)

24- (-16)

24+16

40

hope it helps you!!

Given h(x) = -5x + 3, find h(5).

Answers

5x+5=3
5x=-2
X=-2/5
Alternative form is x=-0.4

Anybody wanna learn how to scratch it?

(pls I need students)

Answers

Answer:

sure

Step-by-step explanation:

1.04 x 10^-4 in standard form

Answers

Answer:

0.000104x

Step-by-step explanation:

A palr of parallel lines is cut by another palr of parallel lines as shown in the fgure. which angles are congruent to angle K OA angles P, Q, and R OB. angles M, E, and C OC. angles G, A, and B OD. angles D, E, arnd C OE. angles M, N, and P​

Answers

Answer:

Angles G, A, and B

Step-by-step explanation:

i need help bc i strugglew

Answers

Answer:

1. (9,6)

2. You can use the graph by following the line drawn on it and, using the dotted points to be able to find where the number of balloons is 15 and what the cost for 15 balloons is

Mr. Shaw graphs the function f(x) = -5x + 2 for his class. The line contains the point (-2, 12). What is the point-slope
form of the equation of the line he graphed?
Oy - 12 = -5(x + 2)
Oy - 12 = 2(x + 2)
O y + 12 = 2(x - 2)
O y + 12 = -5(x - 2)

Answers

Answer:

The first choice is correct. y-12=-5(x+2)

Step-by-step explanation:

Point-Slope Form of a Line

The point-slope form of the equation of a line is:

y-k=m(x-h)

Where m is the slope and (h,k) is a point through which the line passes.

The equation of the line in slope-intercept form is:

y=mx+b

Where b is the y-intercept.

Mr. Shaw graphs the function y=f(x)=-5x+2

The coefficient of the x can be identified as the slope m=-5. We are given the point (-2,12) to build the point-slope form of Mr. Shaw's line as follows:

y-12=-5(x+2)

The first choice is correct. y-12=-5(x+2)

Answer:

a

Step-by-step explanation:

i took test

it takes john 30minutes to walk 15 blocks to the library as this rate how many blocks can he walk in one minutes

Answers

Answer:

He can walk 1/2 of a block in one minute.

Step-by-step explanation:

Answer:

2 blocks per minute

Step-by-step explanation:

if you do a ratio graph you would obviously have to do 30/15, which your answer would be 2

I will give you 5 stars if your right ​

Answers

Answer:

i got C

Step-by-step explanation:

What’s 1/2 + 3/2 equal

Answers

Answer:

2

Step-by-step explanation:

2 2 2 2 2 2 2 2. 2 2 2 2 2 2 2. 2 2 2. 2 2 2 2

What is 1+89789798798798787897897878978998798789789783687367896784674864987.798789879779779879878967543213456789765342456789765432456789

Answers

Answer:

1177839001982.628292

Answer:

89789798798798787897897878978998798789789783687367896784674864988.798789879779779879878967543213456789765342456789765432456789

Step-by-step explanation:

3. The temperature is 3°C below zero.​

Answers

Answer:-3

Step-by-step explanation:

If the temp is 3 below 0 then it’s 0-3 so it’s -3°C

(2x-10) °= °


Please help

Answers

Answer:

2(x-5)

Step-by-step explanation:

Y – 9.9 = 6.4
What are the steps to solve this and the answer

Answers

to be honest I'm looking for the delay but if they are not going through it and it will work and I am going through it.

Hope the answer I gave you helps!!!
:)

HELP! 10 points- i know, very little

A philanthropist decided to donate 46% of her savings to charity.


What fraction of the philanthropist's savings was donated?


46/1000

91/200

1/46

23/50

Answers

Answer:

It would be 23/50. Don't care about points only here to help you out

Step-by-step explanation:

Heyo!! Quite sure it would be 1/46 cause that’s how you would write a percent as a fraction :p

Alex is training for his school's Jog-A Thon and needs to run at least 1 mile per day. If Alex runs to his grandma's house, which is 5/8 of a mile away and then to his friend Justin's house which is 1/2 mile away, he will have trained enough for the day? Group of answer choices True False

Answers

True. 5/8 + 1/2 is. 9/8. Yes he have trained enough, even more than a mile

4x + 1 = 2x - 5
show all steps

Answers

How to solve your question

Your question is

4

+

1

=

2

−

5

4x+1=2x-5

4x+1=2x−5

Solve

1

Subtract  

1

1

1

from both sides of the equation

2

Simplify

3

Subtract  

2

2x

2x

from both sides of the equation

4

Simplify

5

Divide both sides of the equation by the same term

6

Simplify

Solution

=

−

3

Step-by-step explanation:

4x+1=2x-5

4x-2x=-1-5

2x=-6 divide 2x in both side x= -3.

you have to put the variables on both sides the 4x stay positive because it was on the variable side, but 2x became -2x because it was on the exponent side. then you put 1 on the exponent side so it became negative you keep -5 because it Is on the exponent side. then you solve 4x-2x= 2x and -1-5= -6 then you divide 2x in both side and it is x=-3.

can u help me with this problem please ​

Answers

No she did not. How you can tell is when you subtract the two numbers they don’t make out the same thing. For example 120-65 is 55 but 195-120 is 75. Hope this helps!

Answer:

No she is not going the same speed.

Explanation: I know she isn't going the same speed because if you multiply 65 with 2 you will get 130 not 120. So right off the bat she wasn't going the same speed. Hope this helps

What is -6 to the second power times -6 to the fifth power

Answers

Answer:

2799366

Step-by-step explanation:

A computer store is having a clearance sale. All items are discounted 20%. What is the sale price of a disc drive that regularly costs $50?
A.40
B.25
C.20
D.10

Answers

Answer:

the answer is D.10

Step-by-step explanation:

Could you help me with these?

Answers

Step-by-step explanation:

Molly should have multiplied three first so that it would have been

x + 6 + 3x + 12

4x + 18

Dylan did not add x to 5x

it should have been

6x - 12

Jose did not multiply 7 and -5

it should have been

x + 3 + 7x - 35

8x - 32

if there is 1$ in taxes on 25$ worth of clothing, what percent is paid for the 25$ in clothing?

Answers

Answer:

Well it would be 4 percent

Step-by-step explanation:

Thinm of it this way, if you mutliply 25 times 4 it equals 100 then mulitply then 1 dollar by 4 getting 4 dollars worth of tax making it 4 percent of the total ckst

Explain why 6(y + 2) = 2(3y + 6) has infinitely many solutions.
Choose the best response below.
O The coefficients of y are the same, but the constant terms are different.
O The coefficients of y are the same, but the constant terms are the same.
O The coefficients of y are the same, and the constant terms are the same.
O The coefficients of y are different, and the constant terms are different.

Answers

Answer:

B

Step-by-step explanation:

The Answer is B

can some one solve this its subtitution i need the brainlyist i will give yo a thanks a five star and brainlyist

Answers

I think it’s (-2, -16)

If u substitute the y into the second equation it gives you 8x=2x-12 then, you subtract 2x from both sides and it gets you 6x=-12 lastly, you divide by 6 which gets you x=-2. To find y you can take the first equation and plug x in which gives you y=8(-2) and then you multiply which gives you y=-16!! I really hope this helped!!

Step-by-step explanation:

Hey there!

Given;

The equations are;

y = 8x...........(i)

y = 2x-12..........(ii)

Now;

Substituting the value of "y" from equation (i).

8x = 2x-12

8x-2x = -12

6x = -12

X = -12/6

Therefore, X= -2.

Now; Substituting the value of "y" in equation (i)

y = 8*-2

y = -16

Therefore, y= -16.

Therefore, x= -2 and y= -16.

Check:

y = 2x

-16= 8*-2

-16 = -16 (true).

Hope it helps...

13z − 12z − 1 = 4
please help !!!! ......

Answers

Answer:

Z=5

Step-by-step explanation:

13z-12z=1z

4+1=5

hope this helps!

(Geometry) WILL GIVE BRAINY) Mark each figure to indicate the given information.

Answers

Answer:

From A to B that is equal to C to D mark those sides with the same line m<A angle A is equal to m<D Angle D mark those with a half circle

Step-by-step explanation:

let me know if that helped

SIMPLIFY...;
SAGFDKWEJSHVFWENRBSADHFBDSAUYEW

Answers

Answer:

The answer is 4

Step-by-step explanation:

[tex]8-40/4^3\\[/tex]

[tex]32/64=1/2[/tex]

[tex]4^2-8\\16-8\\=8[/tex]

[tex]\frac{1}{2}[/tex]×8

=+4

I think it’s C??? (Don’t kill me if that’s wrong, I’m not too good with math but I tried)

Un inversionista desea comprar acciones de dos tipos. Las de tipo A generan un interés simple a razón de una tasa de 0,5 % mensual; mientras que las de tipo B producen un interés compuesto del 0,3 % mensual capitalizable trimestralmente. Si se invierten S/10 000 en acciones del tipo A, ¿cuánto de ganancia se obtendrá al cabo de seis meses? ¿Cuánto se debe invertir en acciones del tipo B para que al cabo de seis meses se obtenga una ganancia de S/876,00? ¿A qué tasa de interés compuesto anual la utilidad en un año es la misma para los dos tipos de acciones?

Answers

Answer:

Si se invierten S/10 000 en acciones del tipo A, ¿cuánto de ganancia se obtendrá al cabo de seis meses?

$10,000 x 0.5% x 6 = $300

¿Cuánto se debe invertir en acciones del tipo B para que al cabo de seis meses se obtenga una ganancia de S/876,00?

interes compuesto = 0.9% trimestral

X · (1 + 0.009)² = X + $876

1.018081X = X + $876

0.018081X = $876

X = $876 / 0.018081 = $48,448.65

¿A qué tasa de interés compuesto anual la utilidad en un año es la misma para los dos tipos de acciones?

$1 x 106% = $1 x (1 + i)⁴

$1.06 = $1 x (1 + i)⁴

(1 + i)⁴ = $1.06 / $1 = 1.06

⁴√(1 + i)⁴ = ⁴√1.06

1 + i = 1.01467

i = 0.01467 = 1.467% trimestral

0.489% mensual capitablizable trimestralmente

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