whats the answer ?
[tex]2(x^2 - 3) - 8 = - 6[/tex]

Answers

Answer 1

Step-by-step explanation:

Remove the parentheses

2x^2-6-8= -6

Cancel equal terms

2x^2-8=0

Move the constant to the right

2x^2=8

Divide both sides by 2

x^2=4

Simplify the equation

x=+2 or -2


Related Questions

1.If a number a is always less than another number b, which of the following expressions expresses their relationship?

A.a≤b

B.a≥b

C.a>b

D.a 0

D.x 9
Which of the following sentences is the word equivalent of the expression above?

A.The product between 3 and a number is no less than 9.

B.The product between 3 and a number is greater than 9.

C.The product between 3 and a number is no more than 9.

D.The product between 3 and a number is less than 9.

Answers

Answer:

Let's define the symbols:

x <  y

means that x is strictly less than y.

x ≤ y

means that x is less than or equal to y.

(both of these signs can be in the other direction, take that in mind).

A) " a is always less than another number b"

Here we should have:

a < b.

a is always less than the other number b.

This is not in the options, so i suppose that there is a mistake in the question.

B) The expression "above" is not shown here, so i will just writhe the correspondent expression for each option, and you can see which one matches with the expression above.

a) "The product between 3 and a number is no less than 9"

3*n ≥ 9.

b) "The product between 3 and a number is greater than 9."

3*n > 9

c) "The product between 3 and a number is no more than 9"

3*n ≤ 9

d) "The product between 3 and a number is less than 9"

3*n < 9

any help would be appreciated(brainly for best answer)

Answers

Answer:

(See below)

Step-by-step explanation:

m<1 = 180-130= 50 degrees

because <1 and the 130 degree angle are a linear pair so they are supplementary

m<2 = 50 degrees

because <1 and <2 are alternate interior angles so they are congruent

A ufo has a speed of 3000 km/h the distance between a and b is 7500km. how long will it take for the Ufo to fly from A to B
Please show the formula

Answers

Answer:

..........................

s +9=25
Help me please

Answers

it’s 16 lovely i need to write 20 letters

write this number in scientific notation 2,000,000,000

Answers

Answer:

2,000,000,000
In scientific notation is,
2 x 10^9
See attachment for answer:

how many 4-digit number are divisible by 7,8,10 and 25​

Answers

9514 1404 393

Answer:

  7

Step-by-step explanation:

In order for a number to be divisible by all of 7, 8, 10, and 25, it must be a multiple of the least common multiple of those numbers.

  LCM(7, 8, 10, 25) = 7×8×25 = 1400

There are floor(10,000/1,400) = 7 4-digit numbers divisible by 7, 8, 10, and 25. They are ...

  1400, 2800, 4200, 5600, 7000, 8400, 9800

what is the missing segment in the image below

Answers

It should be 8 if I did it correctly

PLEASEEE ITS EASY ALGEBRA 1 ):

Answers

Answer:

6, 7, and 8

Step-by-step explanation:

2x/3 + 7 > 11

Subtract 7 from both sides

2x/3 > 4

Multiply both sides by 3

2x > 12

Divide both sides by 2

x > 6

6, 7, and 8 are the ones that work

A bathtub drains at a rate of 4 1/5 liters of water in 1/5 of a minute. How many liters of water does the bathtub drain per minute

Answers

Answer:

I think the answer is 252 liters a minute.

Step-by-step explanation:

I got 252 liters a minute because I had to first put 4 1/5 as a fraction and it was 21/5. In ever minute there are 60 seconds. I then multiplied 21/5 times 60 to get me to 252 liters. To double check your work you have to divide 252 by 60. When you divide 252 by 60 you would get 4.2 which reduces to 4 1/5 which makes 252 liters per minute the right answer. Hope this helps.

I need help with this pls!!

Answers

answer : (12,4)
that is the max point

the sales tax is $1002.80 on an automobile purchase of $21800. what is the sales tax rate?

Answers

Answer:

21.7391%

Step-by-step explanation:

21800/1002.80

A family eats out at a restaurant and the total for their meals is $73.89. They also pay sales tax of 5.8% and leave a tip for their server. If the family leaves a total of $93, which of the following might be a description of the service they received? a. They left a 10% tip, so the service was probably below average. b. They left a 15% tip, so the service was probably average. c. They left a 20% tip, so the service was probably above average. d. They left a 25% tip, so the service was probably outstanding.

Answers

Answer:

C.

Step-by-step explanation:

The sales tax is ≈ 12.74

The total of $93 - (12.74 + 73.89)  = 6.37

$6.37 is approximatley 20%

The description of the service they received is

They left a 20% tip, so the service was probably above average.

What is percentage?

To determine the quantity or percentage of something in terms of 100, use the percentage formula. Per cent simply means one in a hundred. Using the percentage formula, a number between 0 and 1 can be expressed. A number that is expressed as a fraction of 100 is what it is. It is mostly used to compare and determine ratios and is represented by the symbol %.

let the amount of tax be x.

So, 100% of x = 73.89 x 5.8%

x = 428.562/100

x= 4.285

Now, the tip amount would be

= 93 - 73.89 4.28

= $14.83

Now, the amount of tip in percent is

73.89 / 100 = 14.83 / x

x = 14.83 /0.7389

x= 20.07

x= 20%

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Calculate the area of the shaded region in two different ways. Explain the difference between your two methods.

Answers

Answer:

20 unit²

Step-by-step explanation:

Method 1

Area of trapezium

A = 1/2(b1 + b2)hA = 1/2(3 + 7)(4) = 1/2(10)(4) = 20 unit²Method 2

Area of rectangle - Area of triangle

A = lw = 7*4 = 28 unit²A = 1/2bh = 1/2*4*4 = 8 unit²28 - 8 = 20 unit²

Ava is driving home from college this winter holiday. She travels 60 miles during the 1st hour of her trip. If she continues at the same rate, how many TOTAL hours will it take her to reach her home 330 miles away? 5.5 hours 5.5 hours 5 hours 5 hours 6.5 hours 6.5 hours 4 hours

Answers

Answer: 5.5 hours

Step-by-step explanation:

distance/speed = time

330/60 = 5.5

Answer:

Step-by-step explanation:

330/60= 5 1/2 or 5.5 hours total time

Sarah would like to hire a clown for her daughter's birthday party. Clown A
is offering his services for an initial fee of $105 in addition to $9 per hour.
Clown B is offering her services for an initial $155 fee in addition to $6 per
hour. When will the two clowns charge the same amount of money? Use a
table to estimate the solution.

Answers

The two clowns charge the same amount of money at 16.66 hours.

What is Wages?

Payment for work based on hours worked (or sometimes per day or per amount of work done).

Here, let the duration of birthday party be x hours.

For Clown A,

Initial fee = $ 105

Additional charge = $ 9 per hour

Total amount of clown A = $ (9x + 105)   ...........(i)

For Clown B,

Initial fee = $ 155

Additional charge = $ 6 per hour

Total amount of clown B = $ (6x + 155)   ...........(i)

Now, according to question

9x + 105 = 6x + 155

9x - 6x = 155 - 105

3x = 50

x = 50/3

x = 16.66 hours

Thus, the two clowns charge the same amount of money at 16.66 hours.

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Can someone please help?
I am stressing because I honestly do not understand this and the last person who answered this did not make it clear

Answers

Answer:

[tex]\frac{108}{125}[/tex]

Step-by-step explanation:

[tex]\frac{3}{5}[/tex]*[tex]\frac{25}{24}[/tex]= [tex]\frac{72}{125}[/tex]

[tex]\frac{72}{125}[/tex]÷[tex]\frac{2}{3}[/tex]=[tex]\frac{108}{125}[/tex]

Hope this helps you!

need help , if you can answer it pls do . thank you

Answers

Answer:

9

Step-by-step explanation:

14-5=9

therefore TV=9

hope this helped

If <1=(7−19)°and <2=(+5)°, find the <2

If m<5 = 42° and m<1 = 117°, find m
If M is the midpoint of XY, find the coordinates of X if M(-3,-1) and Y(-8, 6).

Find the distance between the two points. Round to the nearest thousandth.(-8, -2) and (6, -1)

If DE = 4x –1, EF = 9, and DF = 9x –22, find the value of x.

Answers

Answer:

We know that the section formula states that if a point P(x,y) lies on line segment AB joining the points A(x

1

,y

1

) and B(x

2

,y

2

) and satisfies AP:PB=m:n, then we say that P divides internally AB in the ratio m:n. The coordinates of the point of division has the coordinates

P=(

m+n

mx

2

+nx

1

,

m+n

my

2

+ny

1

)

Let C(1,1) divides the line segment AB joining the points A(−2,7) and B(x

2

,y

2

) in the ratio 3:2, then using section formula we get,

C=(

m+n

mx

2

+nx

1

,

m+n

my

2

+ny

1

)

⇒(1,1)=(

3+2

3x

2

+(2×−2)

,

3+2

3y

2

+(2×7)

)

⇒(1,1)=(

5

3x

2

−4

,

5

3y

2

+14

)

⇒1=

5

3x

2

−4

,1=

5

3y

2

+14

⇒5=3x

2

−4,5=3y

2

+14

⇒3x

2

=5+4,3y

2

=5−14

⇒3x

2

=9,3y

2

=−9

⇒x

2

=

3

9

,y

2

=−

3

9

⇒x

2

=3,y

2

=−3

Hence, the point B(x

2

,y

2

) is B(3,−3).

Round the following factors to estimate the products
597x52= ____ x____=_____
A reasonable estimate for 597 x 52

Answers

Step-by-step explanation:

597 rounding would be 600 while 52 would be 50.

So 600 x 50

= 30,000

Help meeeeeeeeee rn pos

Answers

to solve for slope intercept you would get y=x+2.5

Answer:

y = x + 2.5 or y = x + 5/2

Step-by-step explanation:

Multiply both sides by 2 so that they are not fractions anymore.

[tex](2)\frac{2y}{2} = \frac{2x}{2} + \frac{5}{2} (2)\\[/tex] This gives you...

2y = 2x + 5 (divide both sides by 2 to get the y alone.)

y = x + 2.5

Hope this helps ya!!

Write V – 250 in simplest radical form.

Answers

Answer:

5i√10

Step-by-step explanation:

hope this answers your question

:)

Answer:

5√10

Step-by-step explanation:

please help, will give brainlist
(x-2)(x-1) use the distributive property

please explain as well!

Answers

Answer:

Step-by-step explanation:

(x-2)(x-1)

You need to take the first x and multiply by the other x. Then multiply the first x by the -1. Do this for the -2 also. -2 by the second x and -2 by the -1.

You get x^2-x-2x+2 then combine terms.

x^2-3x+2

Answer:

x² - 3x + 2

Step-by-step explanation:

(x-2)(x-1)

xx - x - 2x + 2

x² - 3x + 2

Mark bought groceries two days during the week.
.
Mark purchased $15.00 worth of groceries and paid $17.10 after taxes on Monday.

Mark paid $51.30 after taxes on a purchase of groceries that cost $ 45.00 on Friday

Which equation models the relationship between y, the cost of the groceries after taxes,
and x, the cost of the groceries before taxes?

A. y=0.15x
B. y=1.14x + 0.15
C. y=1.14x
D. y=.015x + 17.10

Answers

Answer:

Its either A or C

Step-by-step explanation: times the 45.00 x 0.15 and then try 45.00 x 1.14 it will give you the answer :D

If x is positive and x^2 = 729, what is the value of x?

Answers

Answer:

x=27

Step-by-step explanation:

x would be the square root of 729, or 27

Answer:

27

Step-by-step explanation:

(x^2=729, x=?)is the same as finding the sqrt of 729, which is 27

Solve the compound equality, and show work!!
2(x-1) ≥ 10 or 3-4x > 15

Answers

Answer:

To solve a compound inequality, first separate it into two inequalities. Determine whether the answer should be a union of sets ("or") or an intersection of sets ("and"). Then, solve both inequalities and graph.

Step-by-step explanation:

Hope this helps!!!!!

:)

Find the value of x
X/5 + 1 = 5 X= ?

Answers

Answer:

20

Step-by-step explanation:

5-1=4×5=20 that's why

Answer:

x = 20

Step-by-step explanation:

[tex]\frac{x}{5} + 1 = 5[/tex]

isolate the [tex]\frac{x}{5}[/tex] by subtracting 1 from both sides

[tex]\frac{x}{5} + 1 -1 = 5-1[/tex]

[tex]\frac{x}{5} = 4[/tex]

then isolate the x by multiplying both sides by 5

[tex]\frac{x}{5} * 5 = 4 * 5[/tex]

[tex]x = 4 *5 = 20[/tex]

so

[tex]x = 20[/tex]

hope this helps :))

can someone pls help me? :)
Example:
2x + 4x - 3x = 18
6x - 3x = 18 (2x + 4x = 6x)
3x = 18 (6x - 3x = 3x)
x = 6 (18 divided by 3 = 6)

Example:
10s - 4 = 7s + 8
10s - 7s = 8 + 4
3s = 12 (12 divided by 3 = 4)
s = 4

Directions: Solve each of the following equations.
a. Combine like terms
b. Then isolate the variable if necessary
c. Follow rules for signed numbers
1. 15t + 8t - 2t = 16
2. 24m + 24m = 96
3. 26 = 12n + 2n
4. 20a - 3a = 34
5. 170x + 4 = 64
6. 15x - 25 = 200
7. 5s + 3s = 42
8. 10t + 2t = 28
9. 14s + 35s - 7s = 42
10. 124s - 14s + 12s = 12
11. 76x + 23x = 33
12. 140r - 8r - 4r = 216
13. 98c - 99c = 1
14. 104mn + (-84mn) = 36
15. 118j - 234j = 234

Answers

Step-by-step explanation:

1 t=16/21

2.m=2

3.n=13/7

4.a=2

5.x=6/17

6.x=15

7.s=21/4

8. t=7/3

9. s=1

10. s=6/61

11. x=1/3

12. r=27/16

13. c=−1

14.m=9/5n

15. j=−117/58

Find the greatest common factor of 14 and 55

Answers

Answer: The factors of 14 are 14, 7, 2, 1.

             The factors of 55 are 55, 11, 5, 1.

The common factors of 14 and 55 are 1, intersecting the two sets above.

In the intersection factors of 14 factors of 55 the greatest element is 1.

Therefore, the greatest common factor of 14 and 55 is 1.

Step-by-step explanation:

The greatest common factor of 14 and 55 is 1.

To find the greatest common factor of 14 and 55.

First write the factor of 14.

14 × 1 = 14, 7 × 2 = 14, 2 × 7 = 14, 1 × 14 = 14.

Which are 14, 7, 2 and 1.

Now, write the factor of 55.

55 × 1 = 55, 11 × 5 = 55, 5 × 11 = 55, 1 × 55 = 55

Which are 55, 11, 5 and 1

Therefore, the common factor of 14 and 55 is 1.

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4. If the two angles and their non-included side of one triangle is congruent to the two
angles and their non-included side of another triangle, then the two triangles are
congruent by:
a. SAS postulate
b. AAS postulate
c. AAA postulate
d. ASA postulate

Answers

It think it B because that was the meaning for AAS postulate

What percent is equivalent to 12/30?
0 12%
O 30%
0 40%
O 60%

Answers

Answer:

40 is the answer

Step-by-step explanation:

The answer would be 40% hope u pass:)
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