Why is the number that satisfies this equation not a real number?
x^2=--1

Answers

Answer 1

Answer:

I assume that says [tex]x^2=-1[/tex], but that is the case because when we square a number, we can NEVER get a negative number. The smallest square we can get is 0. 1^2 is 1, and no real number squared gives us a negative number.

Step-by-step explanation:


Related Questions

please how do you solve 60cos25​

Answers

Answer:

60cos(25)=54.378467222199

In a cookie jar containing 6 chocolate chip cookies, 8 wafer cookies and 10 double chocolate cookies, what is the

probability that a person who isn't looking when they get a cookie will get a chocolate chip cookie?

Group of answer choices

15%

20%

33%

25%

Answers

Answer:

25%

Step-by-step explanation:

10+8+6= 24 (total)

6 (chocolate chip) /24

25%

Answer:

25%

Step-by-step explanation:

10+8+6=24

so that means it is 25%

What is the simplified value of the exponential expression 27 ^1/3

Answers

Answer:

27^1/3=3^3×1/3=3^1=3

therefore required answer is 3.

Answer:

3

Step-by-step explanation:

(27)^1/3

(3^3)^1/3

3

As 3*3*3 is 27 so we can write 3^3 ...both power got cancelled hence we got 3 as a answer

Write the equation of the line, in slope-intercept form, with the
following information:
slope: -2
y-intercept: (0, -3)

Answers

y = 2x-3

look at comments for more!!

Find all of the missing angles, #1-22. pleasssseeee helpppppp

Answers

1 = 53
2 = 115
3 = 107
4 = 73
5 = 115
6 = 66

I’ll do the rest later

Find the missing height of the solid figure

Answers

9514 1404 393

Answer:

  5 in

Step-by-step explanation:

The figure's angles are presumed to be right angles everywhere, so the left-side vertical dimension is equal to the right-side vertical dimension.

The right side is marked as 15 inches.

The left side has two vertical segments, one of which is 10 inches. Since the total left-side height must be the same as the right-side height, we have ...

  10 in + ? = 15 in

  ? = 5 in . . . . . . subtract 10 in

The missing height is 5 inches.

If a fair die is rolled twice and two numbers X1=result of the first roll and X2=result of the second roll are obtained. Given that X1+X2=7, what is the probability that X1 =4 or X2 =4

Answers

Answer:

P = 2/3 = 0.67

Step-by-step explanation:

Assuming that X1 + X2 = 7

The total number of outcomes such that X1 + X2 = 7 are:

X1 = 3, X2 = 4

X1 = 4, X2 = 3

X1 = 1, X2 = 6

X1 = 6, X2 = 1

X1 = 2, X2 = 5

X1 = 5, X2 = 2

So there are 6 total outcomes such that X1 + X2 = 7

Now, the probability that X1 = 4 is equal to the quotient between the number of outcomes where X1 = 4 (only one outcome) and the total number of outcomes (6)

Then:

p = 1/6

And the probability that X2 = 4 is calculated in the same way, then the probability is:

q = 1/6

Now, the probability that X1 = 4 or X2 = 4 is the sum of both probabilities we've found above, then:

P = p + q = 1/6 + 1/6 = 2/6 = 2/3 = 0.67

What is the dominan and range of the relation below? Answer using set notation.

Answers

Answer:

domain: -2 < x < 4

range: -3 < y < 1

The sum of two numbers is 54 and the difference is 8. What are the numbers?

Answers

Answer:

23 and 31 are the numbers you are searching for.

Step-by-step explanation:

23 + 31 = 54

31 - 23 = 8

Have a nice day!

What is 117.126 in standard form?​

Answers

1.17126 x 10^2

Hope it helps!

Answer:

1.17126x 10*2

Step-by-step explanation:

Which is the solution to the system 3x+y=8 and 7x−4y=25

Answers

Answer:

(3, - 1 )

Step-by-step explanation:

Given the 2 equations

3x + y = 8 → (1)

7x - 4y = 25 → (2)

Multiplying (1) by 4 and adding to (2) will eliminate the y- term

12x + 4y = 32 → (3)

Add (2) and (3)  term by term to eliminate y

19x + 0 = 57

19x = 57 ( divide both sides by 19 )

x = 3

Substitute x = 3 into either of the 2 equations and solve for y

Substituting into (1)

3(3) + y = 8

9 + y = 8 ( subtract 9 from both sides )

y = - 1

solution is (3, - 1 )

Which point is not on the graph of the function y = x + 3?

(6, 9)
(97, 100)
(8, 12)
(2, 5)

Answers

Answer: (8, 12)! :)

Explanation:
12 = 8 + 3
12 = 11
NOT TRUE

(Also, I would love to get brainliest!)

Answer:

8,12

Step-by-step explanation:

I forgot how to do this, can someone please help

Answers

Answer:

Solution given:

<R=<J=49°[ inscribed angle standing on a same Aaka equal in a circle]

<K=90°[inscribed is triangle on a semicircle is 90°]

now in triangle JKL

<J+<K+<L=180°[ sum of interior angles of a triangle is 180°]

49°+90°+<L=180°

<L=180°-49°-90°=41°

:.arcJK=41°

is your answer.

Answer:

Question:

Find the measure of the arc or angle indicated.

Solution:

In ∆LRK & ∆JKL,

∠KRL= ∠LJK = 49°

( inscribed angle standing on a same Aaka equal in a circle)

Now , In ∆JKL,

∠JKL = 90°

(angle suspended to the center of the circle =90°)

Now,

construction: A line segment OK joining the points O(center)& K

Since, OK&OJ are the radii of the same circle,

Hence, OK = OJ

.°. JKO = OJK = 49°

Now,

In ∆ JOK,

∠JKO +∠OJK+ ∠JOK = 180°

Angle sum property of a∆

∠JOK = 180°- (∠JKO +∠OJK)

∠JOK = 180°-(49°+49°)

∠JOK = 180°- 98°

∠JOK = 82°

Hence, 82° is your answer

[tex] \\ \\ [/tex]

Hope it helps

-------☆゚.・。゚ᵴɒƙυᴚᴀ_ƨȶäᴎ❀

What could this answer be??

Answers

The number in the parentheses is the rate of change. Because this number is less than 1 it is a decrease, so it is a decay.

The percent decrease is 1 - 0.63 = 0.37 = 37% decrease

Pls, answer!!!!. Please answer the Geometry worksheet. 50 points, and brainliest

Answers

Answer:

you didnt put the picture out !!!!!!!!

can i get more information or a picture so i can help

4) The following set of ordered pairs represents a
function:
{(8, 2), (-8,4), (4,-10), (0,9), }
Which of the following could be the missing ordered
pair? Unit 4, 1 point.
a) (-8,-4)
b) (0,0)
c) (2, -10)
d) (8,0)

Answers

Answer:

b76vtvtc4c4c5ctvtvtctvtvtv

PLEASE HELP I WILL GIVE BRAINIEST. How much students received between 8 and 9 gifts?

Answers

Answer:

9

Step-by-step explanation:

9 students did

Answer:

It would appear that 9 students recieved between 8 and 9 gifts.

Step-by-step explanation:

If you look at the X axis and see the gifts recieved, and the Y axis and see the students, you can easily add those two together and get the answer.

I hope I helped you, and a "Brainliest" is always appreciated! ☺

What is 0.00047 in standard form.​

Answers

Step-by-step explanation:

0.00047. = 47÷10 000

=4.7×10/10^-5

= 4.7×10^-4

A $100 tablet is marked up by 10% and then the new price is marked down by 10%. What is the final price?

Answers

Answer:

$99

Step-by-step explanation:

So the initial price of the tablet was $100. It was marked up by 10% and then marked down by 10%. We are asked to find the final price.

To find the final price, lets first find the price after the tablet price was marked up by 10%. This means that the tablet price increased by 10%. To find the price, we can add 10% of the new original price (or 10% times $100) original price ($100):

$100 + ($100 × 0.1) = $100 + $10 = $110

We could have also multiplied $100 by 1.1 (or 1 + 10%) to find the new price.

So now we know that the new price after the tablet is marked up by 10% is $110. Now, to find the final price, we have to find the price after the new price is marked down by 10%. We can do this by taking the new price ($110) and subtracting 10% of the new price (or 10% times $110):

$110 - ($110 × 0.1) = $110 - $11 = $99

So the final price of the tablet would be $99.

I hope you find my answer to be helpful. Happy studying.

given the following sequences : -17 -25 -33 -41... write an explicit formula and find the 28th term in this sequence

Answers

Answer:

a(n) = -8n -9

a(28)  = -233

Step-by-step explanation:

a(n) = a(1) + (n - 1)d

n is the nth term, a(1) is the first term, d is the common difference.

*d = -25 - (-17) = -8

a(n) = -17 + (n - 1)(-8)

      = -17 + (-8n + 8)

      = -17 - 8n + 8

      = -8n - 9

For the 28th term

a(28) = -8(28) - 9

        = -224 - 9

        = -233

%
Jaden goes to her dance class every
10 days and Scarlett goes to the same dance
class every 5 days. If they are together at the
class on Saturday, what is the next day they
will be together at the dance class?

Answers

Answer:

tuesday is answere .........

plz help I am being timed

Answers

Answer:

24

Step-by-step explanation:

Using the figure below, determine which segment is parallel to the given segment.

Answers

Answer:

seg tu is parallel to seg qp

seg ts is parallel to pr

seg us is parallel to qr

Step-by-step explanation:

hope this helped :)

Nine scores have an average of 8. Scores x and x+1 are added, and these increase the average to 9. Find x

Answers

Answer:

x must be 13

Step-by-step explanation:

Represent the nine scores by a, b, c, d, e, f, g, h, i.

Write the following equation to indicate that the average of these nine scores is 8:

a+b+c+d+e+f+g+h+i

----------------------------- = 8, or a+b+c+d+e+f+g+h+i = 72 if we multiply both

               9                      sides of this equation by 9.

Next, we add scores x and x+ 1 to

a+b+c+d+e+f+g+h+i  +  x + x + 1

and divide the result by 11, as there are now 11 scores instead of just 9:

a+b+c+d+e+f+g+h+i  +  x + x + 1

----------------------------------------------

                        11

Earlier, we saw that a+b+c+d+e+f+g+h+i = 72.  We can now replace

a+b+c+d+e+f+g+h+i in the above fraction by 72:

 72 + 2x + 1

------------------- = 9 (as the new average is 9)

         11

Multiplying both sides of this equation by 11 results in:

73 + 2x = 99, or  2x = 26.

Then x must be 13, and x + 1 must be 14.

2. What was the volume of each small cube?
1/32
1/64
1/128

Answers

Answer:

1/64

Step-by-step explanation:

What is the value of x?
(9x - 3)
(6x)
48°
Enter your answer in the box.
X=

Answers

Answer:  x = 9

Step-by-step explanation:

The sum of three interior angles of a triangle is 180°.

(9x - 3)  + (6x)  + 48° = 180°

9x - 3 + 6x + 48 = 180

15x + 45 = 180

15x = 135

x = 9

In parallelogram IFGH, mF = (x + 20° and mi
(4x – 10)
Find the value of x.

Answers

Answer:

x = 34

Step-by-step explanation:

4x - 10 + x + 20 = 180

5x + 10 = 180

5x = 170

x = 34

Answer:To find the value of x, we can use the property of opposite angles in a parallelogram. In a parallelogram, opposite angles are congruent.

Given that mF = x + 20° and mi = 4x - 10, we can set these two expressions equal to each other:

x + 20° = 4x - 10

Now, let's solve for x:

x - 4x = -10 - 20°

-3x = -30°

Divide both sides by -3:

x = -30° / -3

x = 10°

Therefore, the value of x is 10°.

Step-by-step explanation:

Calculate the total mass of 3 blocks of cheese each weighing 2.3 kg,4.75kg and 0.56kg respectively.​

Answers

Answer:

7.61 Kg

Step-by-step explanation:

Total mass of all the cheese.

f(1) =

please help:)

Answers

Answer:

f(1) = 1

f(1) = -2

f(1) = -8

Step-by-step explanation:

see where there is/are points on the graph where the y-value equals one

(1, 1)

(-2, 1)

(-8, 1)

A pizza place offers 10 topping choices for their pizzas. How many different two-topping pizzas can you order?
A. 2
B. 45
C. 90
D. 100​

Answers

You can order 100 different two- toppings pizzas

Answer:

B. 45

Just took the test!

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