If 3^x=8 what does 3^-2x equal

Answer:

1417.4 if they are looking for a whole number the answer is 1417

Step-by-step explanation:

Hope this helped :)

P.S. If this is wrong please let me know

Answer:

2/5

Step-by-step explanation:

If you take 5/7//9+82+23=2-5

Answer:

The answers are

x

=

−

2

and

x

=

−

4

.

Step-by-step explanation:

To start, the quadratic formula is

x

=

−

b

±

√

b

2

−

4

a

c

2

a

In this problem,

a

=

1

(as the

x

2

term has no coefficient),

b

=

6

, and

c

=

8

.

Plug those values into the quadratic equation to get:

x

=

−

6

±

√

6

2

−

4

(

1

)

(

8

)

2

(

1

)

Multiply

2

⋅

1

on the bottom of the fraction:

x

=

−

6

±

√

6

2

−

4

(

1

)

(

8

)

2

Square

6

and multiply

4

⋅

1

⋅

8

within the square root:

x

=

−

6

±

√

36

−

32

2

Subtract

36

−

32

inside the root:

x

=

−

6

±

√

4

2

Solve for

√

4

x

=

−

6

±

2

2

If the

±

is positive, you get

x

=

−

6

+

2

2

, which simplifies to

x

=

−

4

2

, or

−

2

If the

±

is negative, you get

x

=

−

6

−

2

2

, which simplifies to

x

=

−

8

2

, or

−

4

FALSE

7Y= 1 --> Y= ⅐ NOT 7

so it can't be it's solution

Answer:

21

Step-by-step explanation:

First add 1 and 3 which will give you 4 then you add 4 and 7 and will get 11 then add 1 to get 12 then add 4 to get 16 then add 2 and get 18 and then add 3 and you will get the final answer 21

Hope this helps!

Answer:

See below.

Step-by-step explanation:

Order of operations state that the order in which to solve is left to right.

1+3+7+1+4+2+3

1+3=4

4+7=11

11+1=12

12+4=16

16+2=18

18+3=21

-hope it helps

Answer:

x= 31 degrees

Step-by-step explanation:

122x2=244

360-244 = 116

116/2 = 58

z= 91 degrees

so the inside next to corner b is 58 degrees

91 + 58 = 149

180 - 149 = 31

x = 31

Answer:

Height of replica = 10.63 feet

Step-by-step explanation:

Given :-

Scale factor = 100 : 1

Height of Eiffel Tower = 1063 feet

To Find :-

Height of replica (h)

Solving :-

100 = 1063 / x

x = 1063/100

x = 10.63

Solution :-

Height of replica = 10.63 feet

Answer:

60°

0° or 360°

Step-by-step explanation:

*for the symmetrical hexagon you can rotate it one angle and it'll look unmoved.

*for the 4 since it's not symmetrical you need to do a complete rotation or not move it at all. so either 360° or 0°

Answer:

second one!

Step-by-step explanation:

Answer:

A. Multinomial population

Explanation:

A multinomial population has categorical data. In other words data in this form has different classes in which data is grouped into. These classes do not overlap and are more than two as opposed to binomial populations that have just two outcome variables or data categories. For example in the above data, we see that data is grouped into three categories:students in business college, students in liberal art college and students in education college

Answer:

0.5 pounds - 1 bag

4.5 pounds - x bags

[tex]x = \frac{4.5}{0.5} = 9[/tex]

Answer:

Union

Step-by-step explanation:

The UNION of two or more sets is the set that contains all elements of the set.

Part A

distance of point 1 = -1.6

distance of point 2 = 0.3

difference: -1.6 - 0.3 = -1.9

distance: 0.3-(-1.6) = 1.9

The expression that represents the distance between the two points is |0.3 + 1.6| and the distance between the two points is 1.9 units

The points on the line are represented as:

Point 1 = 0.3

Point 2 = -1.6

The distance between the two points is calculated using the following absolute value equation

d = |Point 1 - Point 2|

Substitute the known values

d = |0.3 - -1.6|

This gives

d = |0.3 + 1.6|

Hence, the expression that represents the distance between the two points is |0.3 + 1.6|

In (a), we have:

d = |0.3 + 1.6|

Evaluate the sum

d = |1.9|

Remove the absolute sign

d = 1.9

Hence, the distance between the two points is 1.9 units

Read more about number lines at:

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Answer:

The answer is D. 216 [tex]in^{3}[/tex]

Step-by-step explanation:

I took the test. Hope this helps.

The volume of the container is 216 inches³.

Volume of a three dimensional shape is the space occupied by the shape.

Given a container.

A triangular prism consists of two triangular bases and three rectangular faces.

The given container is a right triangular prism.

Volume of a triangular prism = Base area × Length of the prism.

Base area = Area of right triangle

                 = [tex]\frac{1}{2}[/tex] × 6 × 8

                 = 24 inches²

Length of the prism = length between the base triangles = 9 inches

Volume = 24 × 9 = 216 inches³

Hence the required volume of the container is 216 inches³.

Learn more about Volume here :

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Answer:

Step-by-step explanation:

First we will solve powers

-6 -(-4)

-6+4=-2

Now put power -2

-18^-2

=−−0.00308

Answer:

3.99=4

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

the equation would be D bc using the point given u can fill out the equation y-y1=m(x-x1) so it would be y-10=m(x-(-3). then fill in slope and change the (x-(-3) into x+3. The equation is now y-10=2(x+3).

Answer:

LAST ONE

Step-by-step explanation:

Answer:

the angles and side length will stay the same

Step-by-step explanation:

it's a rigid translation, meaning that the shape doesn't change

Answer:

1 1/2

Step-by-step explanation:

Brainiest please

Answer:

19.5+24+7.5 = 51

19.5+51+24 = 94.5

51+24+94.5=169.5

Step-by-step explanation: Basically for the blanks you insert the answer you got..

Answer:

19.5+24+7.5=51

19.5+7.5+24=51

19.5+24+7.5=51

Answer:

20

Step-by-step explanation:

(You could also use 3-4-5 method, 15, 20 , 25)

[tex]15^{2} +x^{2} =25^{2}\\225+x^{2}=625\\-225 -225\\x^{2}=\sqrt{400}\\x = 20\\Length = 20 \\\\\\[/tex]

Answer:

B

Step-by-step explanation:

Because if 2 angle of a triangle are equal the 3rd ones will be equal, since the sum of the angles of the triangle is 180

Using the point-slope form:

⇒ [tex](y-y0) = m(x-x0)[/tex]

Which require one point (x0,y0) on the line and the slope (m)

Thus let us plug int the value

[tex](y + 2) = 0(x + 4)\\y + 2 = 0\\y = -2[/tex]

Thus the equation of the line is y = -2

Hope that helps!

Answer:

[tex]x=32[/tex]

Based on the given conditions, formulate:

[tex]x-3=29[/tex]

Rearrange variables to the left side of the equation

[tex]x=29+3[/tex]

Calculate the sum or difference

[tex]x=32[/tex]

I hope this helps you

:)

Answer:

8

Step-by-step explanation:

4,5,6,6,7,7,8,8,8,8,8,9,9

x  x x x x x     x  x  x x x x

Find the required table attached

Since the speed of the Cheetah is constant, this means that the speed must be the same all through in the table.

To get the unknown time and distance, we will have to use the formula below:

Speed = 120/4 = k

Speed = 30m/s = k

We are to get the distance when the time is 25secs

Speed = Distance/Time

30 = d₂/25

d₂ = 30 × 25

d₂ = 750 m

To get the time in the third column

Time = Distance/Speed

t₃ = 270/30

t₃ = 9seconds

Find the completed table attached:

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Answer:

2

Step-by-step explanation:

Subject: Re: Need the math proof for 1 + 1 = 2

The proof starts from the Peano Postulates, which define the natural

numbers N. N is the smallest set satisfying these postulates:

P1. 1 is in N.

P2. If x is in N, then its "successor" x' is in N.

P3. There is no x such that x' = 1.

P4. If x isn't 1, then there is a y in N such that y' = x.

P5. If S is a subset of N, 1 is in S, and the implication

(x in S => x' in S) holds, then S = N.

Then you have to define addition recursively:

Def: Let a and b be in N. If b = 1, then define a + b = a'

(using P1 and P2). If b isn't 1, then let c' = b, with c in N

(using P4), and define a + b = (a + c)'.

Then you have to define 2:

Def: 2 = 1'

2 is in N by P1, P2, and the definition of 2.

Theorem: 1 + 1 = 2

Proof: Use the first part of the definition of + with a = b = 1.

Then 1 + 1 = 1' = 2 Q.E.D.

Note: There is an alternate formulation of the Peano Postulates which

replaces 1 with 0 in P1, P3, P4, and P5. Then you have to change the

definition of addition to this:

Def: Let a and b be in N. If b = 0, then define a + b = a.

If b isn't 0, then let c' = b, with c in N, and define

a + b = (a + c)'.

You also have to define 1 = 0', and 2 = 1'. Then the proof of the

Theorem above is a little different:

Proof: Use the second part of the definition of + first:

1 + 1 = (1 + 0)'

Now use the first part of the definition of + on the sum in

parentheses: 1 + 1 = (1)' = 1' = 2 Q.E.D.

Answer:

10

Step-by-step explanation: