can u guys please help I'm really behind in school I'm in 7th grade ​

Answer:

x^2 = 1 / x ^ -2

x^4 ÷ x^3 = x

(x^2)^2 = x^4

x^3 × x^3 × x^3 = x ^ 9

Step-by-step explanation:

By using law on indices the equivalent expression of x² = 1/x⁻²,x⁴ ÷ x³ = x,(x²)² = x⁴ and x³ × x³ × x³ = x⁹.

Index (indices) in Maths is the power or exponent which is raised to a number or a variable.

For example 5³ = 5²5 here we break 5³ into 5² and 5 so it is called the law of indices.

As per the given expression,

x² now by the law of indices that aˣ=1/a⁻ˣ.

Therefore,x² = 1/x⁻²

x⁴ ÷ x³ = x(x³)/x³=x

Now,

(x²)² the law of indices that (a²)³=a²ˣ³=a⁶

Therefore,(x²)² = x⁴

Now,

x³ × x³ × x³ the law of indices that aˣ × aˣ × aˣ =a⁽ˣ⁺ˣ⁺ˣ⁾

Therefore,x³ × x³ × x³ = x⁹

Hence "By using law on indices the equivalent expression of x² = 1/x⁻²,x⁴ ÷ x³ = x,(x²)² = x⁴ and x³ × x³ × x³ = x⁹".

To learn more about indices,

https://brainly.com/question/170984

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Answer:

Where is the table? Where

Answer:

Step-by-step explanation:

the point (12,5) is on the graph, what do the coordinates tell you about the water in the bucket?

Answer:

The tomato goes to the last box

The carrot goes to the middle box

The broccoli goes to the first box

Step-by-step explanation:

Answer:

for the second picture: the answer is 15 hours

Step-by-step explanation:

174 miles is for 3 hours, divide that by 3 to find how many miles per hour it is, 870 divided by 58 will give you the number of hours; 15. hope this helps!

Answer:

x=6

Step-by-step explanation:

25+133+4+3x=180

3x=180-162

3x=18

x=6

Answer:

The answer is~ no solution

Step-by-step explanation:

its no solution because

3x−3(x+1)=3

Step 1: Simplify both sides of the equation.

3x−3(x+1)=3

3x+(−3)(x)+(−3)(1)=3(Distribute)

3x+−3x+−3=3

(3x+−3x)+(−3)=3(Combine Like Terms)

−3=3

−3=3

Step 2: Add 3 to both sides.

−3+3=3+3

0=6

Answer:

There are no solutions.

Answer:

10 = 10

Step-by-step explanation:

x + 3 = 10

Substitute 7 in for x

7 + 3 = 10

Add

10 = 10

Answer: no wrong cause in order to get 7 as x=7 you need to do x+2=10 cause x+3=4 so that would be wrong

Step-by-step explanation: x=3=10 x=7

x+3=4x=10

4x-10=6

Answer:

24  h^16

Step-by-step explanation:

4h ^10 · 6h^6

Multiply the constants

4*6 = 24

Since the bases are the same, add the exponents

h^10 * h^ 6 = h^ ( 10+6) = h^16

24  h^16

Answer:

x = -2

Step-by-step explanation:

-95= 14x - 7 + 30x (collect like terms)

-95 = 44x - 7 (add 7 on each side)

-88 = 44x (divide by 44 on each side)

-2 = x

Answer:

0.125 < x < 0.18.... WHICH YOUR BEST ANSWER IS PROBABLY D

Step-by-step explanation:

The options are not complete

Given

x = 18%

x> 1/8

Required'

Determine the range that makes x an inequality

We have:

x< 18% and x > 1/8

Convert all to decimal

x < 0.18 and  x> 0.125

This can be rewritten as:

x< 0.18 and 0.125 < x

0.125 < x < 0.18

SO YOUR BEST BET IS ANSWER D

Answer:

-6

Step-by-step explanation:

Answer:

7 units

Step-by-step explanation:

the line JL starts at -2 and ends at 5. in order to get from -2 to 5 you have to add 7.

Answer:

4.600 x 107 km (3.075 x 10-1 A.U.)

Step-by-step explanation:

Answer:

The correct option is;

[tex]\dfrac{x + 40}{x + 160} = 0.333[/tex]

Which is of the form of option C with 2 replaced by x and the characters formatted

Step-by-step explanation:

The given parameters are;

Jose's present batting average = 0.250

The number of times he was at bat = 160

The number of times he made a hit = 40

The batting average he wants to improve to = 0.333

If he makes a hit the next x times he was at bat is represented as if he makes a hit each time, for the next x time he was at bat. We have;

The number in times he makes a hit the next x times he was at bat = x

Therefore, we get;

New total number of hits Jose makes = 40 + x = x + 40

New total number of time Jose was at bat = 160 + x = x + 160

Therefore, given that Jose intends to improve his batting average to 0.333, and that the batting average is given by the relation;

[tex]Batting \ average = \dfrac{The \ number \ of\ hits}{The \ number \ of\ at \ bat }[/tex]

To find x, we have;

[tex]0.333 = \dfrac{x + 40}{x + 160}[/tex]

Therefore, the correct option is most likely C. where the 2 is supposed to be x.

Answer:

X=1

Step-by-step explanation:

2(X+5)=3(5-1)

2x+10=3*4

2x=12-10

2x=2

X=2÷2

X=1

Answer:

a = 5

Step-by-step explanation:

3(a+3)+6 = 30

subtract 6 from both sides

3(a+3) = 24

divide both sides by 3

a+3 = 8

subtract 3 from both sides

a = 5

Answer:

y= 3x + 5

Step-by-step explanation:

find your slipe and intercept using y=mx + b. mx, being slooe you'd use rise over run. And the b is your y-intercept, being 5.

Answer:

Answer One: 3 miles. Answer Two:  105.

Step-by-step explanation:

Answer One: Due to it being 7/10s we have to get 2/5 to a tenth. We multiply 2 and 5 by 2 to get 4/10s subtract 7/10s to 4/10s getting 3/10s which is equal to 45 minutes. So that means 4/10s is equal to an hour. The change in height is 3/10s. Answer Two: It begins it's flight at 7/10s above ground so after 45 minutes it's now at 4/10s due to 45 minutes equaling 3/10s, you need another hour to reach the ground so add 45 minutes to 60 minutes to get 105.

Answer:

$102.2 were collected

Step-by-step explanation:

If there are 15 members in total, and 8 of them paid it on the first day, then you know that 7 people paid it the next day, because the remaining people paid it the next day.

7x14.60=102.2

Answer:

24

Step-by-step explanation:

Answer:

1.First option

2.last option

3.last option

Answer: 1/4

Step 1: Convert to percents.

3/4 = 75%

1/2 = 50%

Step 2: Subtract.

75% - 50% = 25%

Step 3: Convert to fraction.

25% = 1/4

Hope this helps!

Answer:

The answer is Sometimes True.

Step-by-step explanation:

Radicals are number that have roots (√) .

Irrational are numbers that cannot be written in a form of fraction (a/b) .

I will show you some examples :

√2 × √2 = 2 (rational)

√2 × √5 = √10 (irrational)

Therefore, the products of 2 radicals will sometimes give rational or irrational numbers.

Answer:

255.039

Step-by-step explanation:

Answer:

ok

Step-by-step explanation:

1+1=2

then times it by 2

2x2=4

then add 4

4+4=8

Answer:

x > -22/7

Step-by-step explanation:

To find out which inequality is is equivalent, you solve for x.

-4(x+7) < 3(x-2): distribute variables

-4x-28 < 3x-6: Add 6 to both sided

-4x-22 < 3x: add 4x to both sides

-22 < 7x: divide by 7

-22/7 < x: you can switch sides if prefered but you have to switch sign too

x > -22/7

Answer:

13

Step-by-step explanation: