If x^2 = 49, then x^-2 =

Answers

Answer 1

Answer:

0.001665973

Step-by-step explanation:


Related Questions

What is this answer and work shown please 5/2x -3 =2

Answers

Answer:

x = 2

Step-by-step explanation:

Given

[tex]\frac{5}{2}[/tex] x - 3 = 2 ( add 3 to both sides )

[tex]\frac{5}{2}[/tex] x = 5 ( multiply both sides by 2 to clear the fraction )

5x = 10 ( divide both sides by 5 )

x = 2

5/2x - 3 = 2

(subtract the three)

5/2x = 5

(multiply both sides by 2/5 so that the fraction can get cancelled out and the x is by itself)

x = 5 x 2/5 so 2

Find the length of the segment connecting (8,10) and (9,3). Round your answer to the nearest tenth.

Answers

Hey there! I'm happy to help!

Here's how to find the distance between any two points.

Subtract the x values.

8-9=-1

Square it.

-1²=1

Subtract the y values.

10-3=7

Square it.

7²=49

Add the two numbers you got.

49+1=50

And find the square root.

√50≈7.1.

Have a wonderful day! :D

1.BINOMIAL: A POLYMOMIAL WITH EXACTLY..................... TERMS


2. TRINOMIAL: A POLYMOMIAL WITH EXACTLY......................... TERMS


3. COEFFICIENT: A............. IN A TERM OF AN ALGEBRAIC EXPRESSION.​

Answers

1. Bi means two
2. Tri means 3
3. Coefficient: a constant in a term of an algebraic expression. FYI coefficient is 5 in 5x

Overnight, the temperature dropped 1.3 degrees every hour. How many hours did it take the temperature to drop 7.8 degrees?

Answers

Answer:

what was the temperature at first?

Why mathematics is important for artificial intelligence and machine learning?

Answers

Answer:

it helps us understand the more of the society around us and how ir works

HOPE IT HELPS :)

Step-by-step explanation:

AI is essentially just math and programming.

Math and programming is also necessary for machine learning.

Mathematics is at the core of AI and machine learning because it provides means of implementing [put (a decision, plan, agreement) etc into effect] how their goals can be reached.

Can you answer this?

Answers

Answer what? There is no question to answer

Algebraic equations with two or more operations can be solved by undoing them in reverse order of operations. True or false?

Answers

Answer:

false you would do it in order of operations

A triangular window has area
24 square feet and height six feet.
What is its base?

Answers

The base is 8 square feet

RS=2x-8, ST= 11, RT= x+10

Answers

Answer:

X=7 ST=11 RT=17

Step-by-step explanation:

RT=RS+ST. RS= 2(7)-8. ST=11

X+10=2x-8+11. =14-8=6. RT= x+10

X+10=2x+3. RS=6. 7+10=17

10=x+3. RT=17

X=7

2. Write the equation of the line that goes through (5, 4) and has a slope
NEEED HELLLPPPPP PLEASEEE

Answers

y= 4/5 x

Option 2

Step-by-step explanation:

[tex](5,4) = (x_1,y_1) \\ m = \frac{4}{5} [/tex]

Substitute values into the point slope form

y-y1 =m(x-x1)

y- 4= 4/5(x-5)

y -4= 4/5x -4

y= 4/5 x -4+4

y= 4/5x

4^x+ 2^(1+2x)= 50
I know what the answer is (about 2.03), but I need help getting there!

Answers

Step-by-step explanation:

4ˣ + 2¹⁺²ˣ = 50

Rewrite 4 as a power of 2.

2²ˣ + 2¹⁺²ˣ = 50

Factor out 2²ˣ.

2²ˣ (1 + 2) = 50

2²ˣ = 50/3

Take log of both sides.

ln(2²ˣ) = ln(50/3)

Use exponent property.

2x ln 2 = ln(50/3)

Solve for x.

x = ln(50/3) / (2 ln 2)

Simplify.

x = ln(50/3) / (ln 4)

x ≈ 2.03

Evaluate the expression.
10x - 3x2 when x = 2

Answers

Answer:

8

Step-by-step explanation:

Answer:8 or -16

Step-by-step explanation:

a) If you mean 10x - 3(x²) when x=2

10(2)- 3(2²)= 20-12=8

b) If you meant 10x - 3x²=

10(2)-(3 x 2)²= 20-6²

20-36=-16

find the 55th term of the arithmetic sequence 11,21,31,...

Answers

11+(55-1)×10=551 just use the formula

3: Mary has 26 sweets and is able to share them evenly between her friends.
Mary has more than 1 friend.
Write down how many friends Mary might have.​

Answers

Answer:

Mary has 12 friends, and a total of 13 people including her. Or, she has 25 friends, and a total of 26 people including her.

Step-by-step explanation:

First, we know that 26 is divisible by 1, 2, 13, and 26 because (2x13) and (1x26) both equal 26 but we know that Mary has more than 1 friend and if Mary is also added to the group where the candy is divided, that means that 1 and 2 are both out because Mary has more than 1 friend so 1 cannot be the answer and if Mary has 2 friends, that means that the candy would have to be divided 3 ways which is not possible evenly so the answer is either 12 friends or 25 friends.

10. A movie theater sells 3 different sizes of popcorn: small, medium, and large. An order of popcorn comes with 4 different topping choices: butter, cheese, caramel, or salt. [4 points] How many unique ways can you order a bag of popcorn? (You can only select one topping.) Ans:_ What is the probability that a randomly selected popcorn is large with either butter or salt?

Answers

Answer: 12

Step-by-step explanation:

The answer is 12 because:

sizes are 3

toppings are 4

Using the Fundamental Counting Principal you multiple the selections

( 3 x 4=12)

So just learn the fundamental counting principal and it'll be easier. :)

The number of unique ways that you can order a bag of popcorn if you can only select one topping is 12 ways.

How do solve probability combinations?

Combinations in probability refer to sequences of outcomes where the order does not matter.

Combinations are a way to calculate the total outcomes of an event where the order of the outcomes does not matter. To calculate combinations, we will use the formula nCr = n! / r! × (n - r)! where n represents the total number of items, and r represents the number of items being chosen at a time.

We are given the 3 different sizes of popcorn as;

Small

Medium

Large

Now, we are told that an order of popcorn comes with 4 different topping choices. Thus;

A number of unique ways that you can order a bag of popcorn are;

N = 3×4 = 12 unique ways

Read more about the probability combinations at; brainly.com/question/24756209

#SPJ2

Mary and her band are performing a concert. They need to make $1,963.50 to cover their travel, lodging, and meal costs. If they charge $8.50 for each ticket, how many tickets do they need to sell to cover their costs?

Answers

1963,50/8,50= 231
they need to sell 231 tickets

Answer:

231

Step-by-step explanation:

I got the answer right

How many metres of cloth 4.4 m wide will be required to make a conical tent of radius of whose base is 3.5m and whose height is 8.4m .

Answers

➢ Answєr :

[tex]\Huge{\boxed{\sf{\red{22.98m}}}}[/tex]

➢ Explαnαtion :

Givєn :

Radius of the tent,r = 3.5 mHeight of the tent, h = 8.4 m

To Find :

length of the cloth required.

Solution :

According to the question,

Slant height, l = [tex]\displaystyle{\sf{ \sqrt{{r}^2 + {h}^2} = \sqrt{{3.5}^2 + {8.5}^2}}}[/tex]

[tex]\implies[/tex] [tex]\displaystyle{\sf{ = 9.192m}}[/tex]

curved surface area = [tex]\displaystyle{\sf{ \pi rl}}[/tex]

[tex]\implies[/tex] [tex]\displaystyle{\sf{ \frac{22}{7} \times 3.5 \times 9.192{m}^2}}[/tex]

[tex]\implies[/tex] [tex]\displaystyle{\sf{ 101.112}}[/tex]

i.e., Area of the cloth is 101.11m²

Now, length of the cloth required = [tex]\displaystyle{\sf{ \frac{area}{width}}}[/tex]

[tex]\implies[/tex] [tex]\displaystyle{\sf{ \frac{101.11}{4.4}}}[/tex]

[tex]\implies[/tex] [tex]\large{\boxed{\sf{\red{22.98m}}}}[/tex]

What whole number power of 2 is 16384?

Answers

We just take the square root of 16384.

√16384 = 128

128^2 = 16384

Best of Luck!

work it out "the equation 1.5r + 15=2.25r represents the number r of movies u must rent to spend the same amount at each movie store. how many movies must u rent to spend the same amount at each movie store" then there's 2 pics one says "all rentals $1.50, membership fee $15" other says "membership free, all rentals $2.25"

Answers

Answer:

  20

Step-by-step explanation:

Your equation is correct. To solve it subtract 1.5r from both sides and divide by the resulting coefficient of r.

  15 = 0.75r

  15/0.75 = r = 20

You must rent 20 movies for the costs to be the same.

A hot-air balloon starts 6 feet above the ground and then rises 20 feet each minute.
What equation gives the height h in feet as a function of time t in minutes?
A. h=61
B. h=202
С. h = 204 + 6
D. h=6+ 20

Answers

At starting hot-air balloon starts 6 feet.

So, at t = 0 , h = 6 feet.

Now, distance travelled per minute is 20 feet.

So, extra distance travelled in t minutes is 20t feet.

Now,

Total height = Staring height + increase in height w.r.t time.

h = 6 + 20t

Therefore, the height h in feet as a function of time t in minutes is h = 6 + 20t .

Hence, this is the required solution.

if it is 2:30 what time would it be 1 hour and 30 minutes

Answers

Answer:

4:00

Step-by-step explanation:

If it’s 2:30 it would be 4:00 in an hour and a thirty minutes ahead

-7p = -3p - 8
p =
Help

Answers

Answer:

p=2

Step-by-step explanation:

-7p = -3p - 8

Add 3p to each side

-7p+3p = -3p+3p - 8

-4p = -8

Divide each side by -4

-4p/-4 = -8/-4

p = 2

Answer:

[tex] \huge{ \fbox{ \sf{p = 2}}}[/tex]

Step-by-step explanation:

[tex] \bigstar{ \sf{ \: - 7p = - 3p - 8}}[/tex]

[tex] \underline{ \underline{ \mathfrak{Let's \: solve}}} : [/tex]

[tex] \text{Step \: 1} : \sf{Move \: 3p \: to \: left \: hand \: side \: and \: change \: it's \: sign}[/tex]

[tex] \mapsto{ \sf{ - 7p + 3p = - 8}}[/tex]

[tex] \text{Step \: 2} : \sf{Collect \: like \: terms}[/tex]

[tex] \sf{Like \: terms \: are \: those \: which \: have \: the \: same \: base}[/tex]

[tex] \mapsto{ \sf{ - 4p = - 8}}[/tex]

[tex] \text{Step \: 3} : \sf{Divide \: both \: sides \: by \: - 4}[/tex]

[tex] \mapsto{ \sf{ \frac{ - 4p}{ - 4} = \frac{ - 8}{ - 4}}} [/tex]

[tex] \text{Step \: 4} : \sf{Calculate}[/tex]

[tex] \mapsto{ \sf{p = 2}}[/tex]

Hope I helped!

Best regards! :D

~[tex] \sf{TheAnimeGirl}[/tex]

The sum of a Rational Number and an irrational number is rational true or false?

Answers

Answer: FALSE

Step-by-step explanation:

An Irrational number is a decimal t hat is non repeating while a rational number is s repeating decimal.

Answer:

False

Step-by-step explanation:

Because the sum of a rational Number and an irrarional number is still irrational.

Plot the image of point Q under a reflection across the -axis.
please help, I don’t know this question!

Answers

Answer:

pit it on -4 because your reflecting it on x

The Mp of coke is 20%more than its purchased price.if the coke was sold after 15%duscount,there will be gain of rs.40,find the M.p and Cp

Answers

Answer:

let cp be x

mp= x+ (20% 0f x)= 1.2x

sp = mp -d%of mp= 1.2- 15% *1.2 =1.02x

profit = 40

sp-cp =40

1.02x-x=40

x=2000

cp =2000

mp= 1.2*2000=2400

Step-by-step explanation:

what is the slope of a line that passes through (-4,1) and (5,2)

Answers

basically use the formula y1-y2 over x1-x2 and just plug in the number

Need help don’t understand

Answers

Answer it is B

Step-by-step explanation:

Answer:

[tex] r^2 [/tex]

All choices are incorrect.

Step-by-step explanation:

Remember that [tex] r = r^1 [/tex].

Also remember the rule: [tex] \dfrac{a^m}{a^n} = a^{m - n} [/tex]

[tex] \dfrac{r^3}{r} = [/tex]

[tex] = \dfrac{r^3}{r^1} [/tex]

[tex] = r^{3 - 1} [/tex]

[tex] = r^2 [/tex]

Answer: [tex] r^2 [/tex]

All choices are incorrect.

please help!! (click on pic)

Answers

Answer:

1/2x³y^6

Step-by-step explanation:

how many line of symmetry has a kite​

Answers

Answer:

1

Step-by-step explanation:

Answer:

1

Step-by-step explanation:

A repair bill for your car is $553. The parts cost $265. The labor cost is $48 per hour. Write and solve equation to find the number of hours T of labor spent repairing the car

Equation : __ =553

T= ___ hours

Answers

Answer:

6

Step-by-step explanation

265+48=313

553-313=240

240/60=6

Answer:

equation : 265 + 48T = 553

T = 6 hours

Step-by-step explanation:

equation

553 - 265 = 288

288 /48 = 6

the number of hours spent is 6

equation : 265 + 48T = 553

T = 6 hours

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