Which equation has both 7 and -7 as a
possible value of x?

A. X^2=14
B. x^3=14
C. X^3=49
D. X^2=49

Answers

Answer 1

Answer:

D. X^2=49

Step-by-step explanation:

X= -4 or X=7

X^2=(-7)^2=49

or

X^2=(7)^2=49


Related Questions

If L ll m, solve for x

Answers

Answer:

x = 26

Step-by-step explanation:

1. First, we should realize that the angle with 5x + 7 and the angle with 8x - 71 are alternate exterior angles, so they're congruent.

This means that 5x + 7 = 8x - 71

2. (Solving)

Step 1: Subtract 8x from both sides.

[tex]5x + 7 - 8x = 8x - 71 - 8x[/tex] [tex]-3x + 7 =-71[/tex]

Step 2: Subtract 7 from both sides.

[tex]-3x + 7 - 7 = -71 - 7[/tex] [tex]-3x = -78[/tex]

Step 3: Divide both sides by -3.

[tex]\frac{-3x}{-3}=\frac{-78}{-3}[/tex] [tex]x = 26[/tex]

Step 4: Check if solution is correct.

[tex]5(26)+7=9(26)-71[/tex] [tex]130 + 7 = 208 - 71[/tex]  [tex]137 = 137[/tex]

Therefore, x = 26.

A farmer wants to create a rectangular pen with an area of 16 m2 using the least amount of fencing. He should build the pen in the shape of a square.

Question 17 options:
A) True
B) False

Answers

The answer is:
B. False

For the return trip, Moses suggests taking a shortcut that will save 4 miles from the total 40-mile hiking distance. He calculates that they will need to average 6 miles per day over the 4 days coming back, because 4 - 4 - 6. Is Moses correct?​

Answers

Moses is incorrect.
40miles - 4 miles = 36 miles
36 miles/4 days = 9 miles/day

find the 8th term 3,6,12

Answers

3
3
,
6
6
,
12
12
,
24
24
,
48
48
,
96

Answer:

3,6,12,24,48,96 ,192 ,384

Step-by-step explanation:

The formula for the area of a trapezoid is A=1/2(b1+b2)h. Solve the equation for b1

Answers

2A=b1 +b2
So
b1= 2A-b2

the measure of a is 116 degrees the measure of b is 3 times the measure of c

Answers

is there more too that question?

A shoe store uses a 60% markup for all of the shoes it sells.What would be the spelling price of a pair of shoes that has a wholesale cost of 55$?

Answers

Answer: 88

Explanation:

55x1.6=88

Six plus -2 times a number is the same as 26 plus six times the same number.

Answers

Step-by-step explanation:

let the number be x

and according to question,

six + 2 times a number = 2x + 6

26 + 6 times a number = 6x + 26

2x + 6 = 6x + 26

-6x + 2x = 26 - 6

-4x = 20

x = 20/4 = 5

x = 5

therefore, the number is 5.

hope this answer helps you dear...take care and may u have a great day ahead!

over 2 days, students completed a math test. in the first test. there were 50 questions, and one student got 39 questions correct. which percent equation correctly represents this situation?​

Answers

Answer:

78%

Step-by-step explanation:

39/50 x2 → 78/100 so 78%

4^3 • 5^3 and 20^3, Are the expressions equivalent? Yes or no?

Answers

Answer:

Yes

Step-by-step explanation:

4³ × 5³

(4 × 5)³

=20³

Both are equivalent

Hey there!

4^3 * 5^3 = ?

4^3

= 4 * 4 * 4

= 16 * 4

= [64]

5^3

= 5 * 5 * 5

= 25 * 5

= [125]

125 * 64

= [8,000]

20^3

= 20 * 20 * 20

= 400 * 20

= 8,000

8,000 = [8,000]

Therefore, this statement is TRUE so your answer is: [YES]

Good luck on your assignment and enjoy your day!

~Amphitrite1040:)

this is what my techer told me to do "Show a different way to solve 99x76"

Answers

Answer:

I think it's 76×99

Step-by-step explanation:

hope it helps

Evaluate the expression when b= 7 and x = -3. -b + 4x​

Answers

Answer:

-19

Step-by-step explanation:

-7+4×-3

-7-12

-19

Maybe it's correct

Before polling the students in Scion School of Business, a researcher divides all the current students into groups based on their class standing, such as freshman, sophomore, and so on. Then, she randomly draws a sample of 50 students from each of these groups to create a representative sample of the entire body in the school.

Required:
What is the sampling method the researcher is practicing?

Answers

2500 is the answer got it

My sis is having a hard time simplifying a problem. I'm not good at simplifying myself So I cant help her ):P

simplify 48 divided by 2 x 4

Answers

3 x 2 x 2 x 2 x 2 / 2 x 2 x 2

48 / 2 x 4

[48 can be simplified to 24 x 2 and 4 can be simplified to 2 x 2]

24 x 2 / 2 x 2 x 2

[24 can be simplified to 12 x 2]

12 x 2 x 2 / 2 x 2 x 2

[12 can be simplified to 6 x 2]

6 x 2 x 2 x 2 / 2 x 2 x 2

[6 can be simplified to 3 x 2]

3 x 2 x 2 x 2 x 2 / 2 x 2 x 2

PLEASE HELP ME!! WILL GIVE BRAINLIEST PLEASEEE!!
In order to prove that the diagonals of a rhombus are perpendicular to each other using the following figure, which triangle congruency postulate is used?

Answers

Answer:

SSS Postulate

Step-by-step explanation:

took the test and got it right! good luck! God bless you!

sec^2 (pi/2 - x) * [sin^2 (x) - sin^4 (x)]

Answers

Answer:

Explanation:

Identity:  sec2θ=1+tan2θ

sec2(π2−x)−1=1+tan2(π2−x)−1

=tan2(π2−x)

Identity: tan(π2−θ)=cotθ

=cot2x

For the first year of a new job, you make P70,000. You get an annual raise each year of 3%. Find out total amount of money you will make in 5 years.

Answers

Answer:

P371,639.507

Step-by-step explanation:

First year: 70,000

Second year: 72,100

Third year: 74,263

Fourth year: 76,490.89

Fifth year: 78,785.6167

If you plus them all the total is 371,639.507

PLEASE HELP!!!

Please answer this

Answers

Answer:

angle 2 and angle 7

.........they are exterior alternate angles

Find the slope between points (–2, 6) and (6, 2).

Answers

Answer:

slope of the line is =y2-y1/x2-x1

=2-6/6+2

=-4/8

=-1/2

=-(1/2)

which is an equivalent fraction to 0.265

Answers

Answer:

32/125

Step-by-step explanation:

Answer:

Steps to convert 0.265 into a fraction:

Write 0.265 as  

0.265/1

Multiply both the numerator and denominator by 10 for each digit after the decimal point:

0.265/1  =  

0.265 x 1000/1 x 1000

=  265/1000

In order to reduce the fraction we find the Greatest Common Factor (GCF) for 265 and 1000. A factor is just a number that divides into another number without any remainder.

The factors of 265 are: 1  5  53  265

The factors of 1000 are: 1  2  4  5  8  10  20  25  40  50  100  125  200  250  500  1000

The Greatest Common Factor (GCF) for both 265 and 1000 is: 5

Now to reduce the fraction we divide both the numerator and denominator by the GCF value.

265/1000 =  265 ÷ 5/1000 ÷ 5

 =  

53/200

Simply the answer is 53/200

Hope This Helps!!!

Please help it’s due in tomorrow and I have no idea how to do it :).

Answers

Answer:

-2

Step-by-step explanation:

27^m÷243^n can be written as

3^3 ÷ 3^5

the base are both 3, make it one 3

3^3-5

= 3^-2

=3^a is 3^-2 and a is -2

Please help!!! Last question I have

(Will mark most Brainly)

Answers

Answer:

Assuming they don't use the budget for anything else, the greatest number of people they may invite and still stay within the budget is 107 people.

PLEASE HELP ME! D:Find the missing length the triangles in each pair are similar

Answers

Answer:

11)The unknown answer is 24

So sorry I couldn't solve the remaining ones

Rewrite the equation below so that it does not have fractions.
3/4x-2=2/5

Do not use decimals in your answer.

Answers

5x = 16

Step-by-step explanation:

¾ x - 2 = ⅖

¾ x = ⅖ + 2

¾ x = (2 + 10)/5

¾ x = 12/5 → (multiplied by 20)

20(¾)x = 20(12/5)

5(3)x = 4(12)

15x = 48 → (divided by 3)

5x = 16

How do I simplify (9 square 3-4 square+2)-(x square 3+3 square 2 +1

Answers

Answer:

8x³ - 3x² - 4x + 3

Step-by-step explanation:

first, eliminate the parenthesis. you can just drop the first set, but you have to distribute the negative through the second set.

9x³ - 4x + 2 - x³ - 3x² +1

then combine like terms (terms with the same exponent)

8x³ - 4x + 3 - 3x²

then put it in the correct order

8x³ - 3x² - 4x + 3

please help! circled numbers only. tysm, ILL MARK BRAINLIEST!

Answers

2. 4 2/5
4. 6 3/8
6. 4 5/12
8. 2 1/3
10. 24 2/3
12. 7 5/6
14. 33/5
16. 102/11
18. 81/5
20. 163/7
22. 1295/6
24. 1329/16

Answer:

2) 4 and 2/5

4) 6 and 3/8

6) 4 and 5/12

8) 2 and 1/3

10) 24 and 2/3

12) 7 and 5/6

14) 33/5

16) 102/11

18) 81/5

20) 163/7

22) 1295/6

24) 1329/16

Step-by-step explanation:

Hope this helps! Pls give brainliest!

Use the graph below to find the x- and y-intercepts.

x -intercept : 2 ; y- intercept : 6

x-intercept: - 3 ; y - in intercept: 6

x-intercept : 6 y- intercept : -3

x-intercept : 6 y - i intercept : 2

Answers

Answer:

the y intercept is -3

the x intercept is 6

looks like your 3rd answer listed.

whats the missing number if you have 3/10 =1/5

Answers

Answer:

1/10?

Step-by-step explanation:

I dont really understand what you are aasking here.

what is x? 12=-4(-6x-3)

Answers

Answer:

Step-by-step explanation:

-4(-6x - 3) = 12

24x + 12 =12

24x = 0

x = 0

Rates & proportional relationships: Quiz 1
Which equation has a constant of proportionality
equal to 10?
Choose 1 answer:
2
y = х
20
30
y = -
3
©
12
y = -
2
5
Y= T

Answers

Answer:

The answer is B. when you do 30 / 3 you get 10

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