log[tex]Evaluate log _{2} {\frac{1}{128} }[/tex]

Answers

Answer 1
128*2+ 1/ 127 =2.00781
Answer 2

9514 1404 393

Answer:

  -7

Step-by-step explanation:

It is helpful to recognize 128 = 2^7. Then you know ...

  [tex]\log_2\dfrac{1}{128}=\log_2{2^{-7}} =\boxed{-7}[/tex]

__

If you don't know that, you can use the change of base formula:

  [tex]\log_2{\dfrac{1}{128}}=\dfrac{\log{\dfrac{1}{128}}}{\log{2}}=\dfrac{-2.1072}{0.30103}=\boxed{-7}[/tex]


Related Questions

I need help! Im very confused!

Answers

Answer:

Surface area of net = 310 cm²

Step-by-step explanation:

Given:

Dimension of two same rectangle = 11 cm by 9 cm

Dimension of single rectangle = 11 cm by 7 cm

Height of two triangle = 5 Cm

Base of two triangle = 7 Cm

Find;

Surface area of net

Computation:

Surface area of net = Surface area of two same rectangle + Surface area of single rectangle + Surface area of two same triangle

Surface area of net = 2[l x b] + [l x b] + 2[(1/2)(b)(h)]

Surface area of net = 2[11 x 9] + [11 x 7] + 2[(1/2)(7)(5)]

Surface area of net = 198 + 77 + 35

Surface area of net = 310 cm²

Give the value of each trigonometric ratio.

cos m
cos n
sin m
sin n
tan m
tan n

Answers

Step-by-step explanation:

Cos m = 35/37 = 0.94

Cos n = 12/37 = 0.32

Sin m = 12/37 = 0.32

Sin n = 35/37 = 0.94

tan m = 12/35 = 0.34

tan n = 35/12 = 2.91

What is the speed of a wave that has a wavelength of 2m and frequency of 1.5 Hz?
Doc Below

Answers

Speed =wavelength x frequency
= 2x1.5 = 3m/s

Help please

The lines on a coordinate plane are perpendicular.
Perpendicular lines form what type of angles?

Answers

Answer:

B. Right angles

Step-by-step explanation:

When perpendicular lines intersect, they create 90° angles (aka right angles)

PLEASE HELP ME!

Rolando imported 138 boxes of mangoes.

There were 24 mangoes in each box.


He reserved 72 mangoes for his friends and sold the rest to 3

customers.

If each customer bought an equal number of mangoes, how

many mangoes did each customer buy?

Answers

Answer:

Each customer bought 45 boxes which is equivalent to mangoes 3240 in total.

Step-by-step explanation:

1. Subtract 3 boxes from the total of 138 imported boxes. ( 3 boxes are the 72 mangoes for his friends )

2. Divide 135 by 3 ( The amount of customers ) = 45 boxes per customer.

3. 45 x 24 ( The amount of mangoes in each box ) = 1080

4. 45 boxes/1080 mangoes per customer.

To recheck:

1080 x 3 ( The amount of customers again ) = 3240.

135 x 24 ( The amount of mangoes per box ) = 3240.

I Hope this helped! :)

Bananas cost 0.59 per pound. Create an equation that could be used to find the total cost of y of x bananas

Answers

Answer:

y = 0.59x

Step-by-step explanation:

Cost per pound of banana = $0.59

If Number of banana's = x

Total Cost of an item = price per item * number of items

Therefore,

Total cost, y = price per pound of banana * number of bananas

y = 0.59 * x

y = 0.59x

what is the equation of the line
(0,1) (4,-1)

Answers

hope it helps this to you figthing sheeeeeeeeeeeeeeeeeeeeeeeesh!!!

i need help with this

Answers

Since 12 is hypotenuse, formula we would use is:
12^2=5^2+x^2
144=25+x^2
x^2= 144-25
x^2=119
x= √119
x=10.9087
Rounded to nearest tenth,
x=10.9
Good luck.

What is the area? Plz show me step by step. :)

Answers

Answer:

124

Step-by-step explanation:

A triangle is BH/2

6.2 is the height and 5 is the base

one triangle is 15.5 so multiply it by 8 since its an octagon

How do I solve this finding the first four of the sequence?

Answers

Answer:

Step-by-step explanation:

a(1) = -7 (given)

a(2) = a(1) + 4 = -7 + 4 = -3

a(3) = a(2) + 4 = -3 + 4 = 1

a(4) = a(3) + 4 = 1 + 4 = 5

and so on.

Answer:

Step-by-step explanation:

which of the following points is a solution to the system of inequalities shown graphed below?

1.(-3,1)
2.(-1,4)
3.(3,-2)
4.(-2,-4)

Answers

2. (-1,4) because it’s the only point in the intersection of both intersections. All the other points only fall into the solution of one inequality or in the case of 4 none

write the base and power of each of the following exponent.
(-23/56)^6​

Answers

Answer:

-191.10

Step-by-step explanation:

When you divide 56/23 you get 2.4, 2.4 is negative.

Multiply 2.4 6 times

&

2.4^6.

You get -191.10.

I am probably wrong but I tried.

Solve the system by substitution.
y = 8x – 6
y = 2x

Answers

Answer:

x = 1

y = 2

Step-by-step explanation:

y =8x - 6  ---------------------------------(I)

y = 2x -------------------------------------(II)

substitute y = 2x in equation (I)

2x = 8x - 6

Add 6 to both sides

2x + 6 = 8x

Subtract 2x from both sides

6 = 8x - 2x

6 = 6x

Divide both sides by 6

6/6 = x

x = 1

Substitute x = 1 in equation (II)

y = 2*1

y = 2

Since both equations equal to y, that would mean that both equations would equal each other. This means that the equation would turn into 2x = 8x - 6. Once you have this equation, you have to move all the terms that have the pronumeral x to the left. So, you would move 8x to the left. In order to do this, you have to minus 8x on both sides, 2x-8x=8x-8x-6. This is equation will simplify to -6x=-6. To find out what x is equal to, you then need to get rid of the -6 by dividing -6 by both sides. In the end, x should equal to 1. Then you need to find out what y is equal to. Since x=1, you can substitute it into one of the equations. Let’s use the equation y=2x. If you substitute x with 1, y should equal to 2. Now you know what y and x equals to.

I need help on this problem for math, please answer ASAP :)

Answers

Answer:

x = 6

Step-by-step explanation:

10x + 11 + 17x + 7 = 180°

combine like terms:

27x + 18 = 180

subtract 17 from both sides of the equation:

27x = 162

divide both sides by 27:

x = 6

help asap!! i’ll give brainliest!

Answers

Answer:

-4a

Step-by-step explanation:

How many faces, vertices, and edges are in the figure below?

Answers

Answer:

faces = 7, vertices = 7, edges = 12

Step-by-step explanation:

i took the test just now :D (brainlest always acceptable! :D)

The number of faces, vertices, and edges are 8, 18 and 12.

We are given that;

The figure of hexagonal prism

Now,

A hexagonal prism is a 3D shape with

8 faces, 18 edges, and 12 vertices12.

The faces are 2 hexagons and 6 rectangles.

The figure below shows the faces, edges and vertices of a hexagonal prism.

Therefore, by the prism answer will be 8 faces, 18 edges, and 12 vertices12.

Learn more about rectangular prism;

https://brainly.com/question/15843335

#SPJ4

Sam's Saddles is having a sale on cowboy hats. The hats are being sold for
a 30% discount. The expression below can be used to determine the cost
of a hat on sale (h). h -0.3h Which expression could also be used to determine the cost of a hat on sale?
0.30h
0.70h
1.30h
1.70h

Answers

Answer: 0.70h

Step-by-step explanation:

The hat is being sold at a 30% discount. The expression that shows this will be:

Price = h - 0.3h

When the 0.3h is subtracted from h, we have:

= 0.7h

Another way to get to that expression:

Hat is being sold at 30% discount which means that 30% has been removed from the value leaving:

= 100% - 30%

= 70%

Price is now 70% * Normal price which is denoted as h.

= 70% * h = 0.7h

The following are the last 10 run scores Colin got in cricket: 21, 14, 23, 23, 20, 8, 23, 34, 10, 22 a) Work out Colin's mean score. b) Colin plays cricket again on Sunday. He gets 22 runs. What is his new mean score? Give your answers as decimals. Please answer ASAP.

Answers

Answer:

19.8,41.8

Step-by-step explanation:

wish you all the best hope you understand.

An olive press produces 6 2/3 gallons of oil in 32 minutes. At this rate, how many gallons of olive oil will be produced in 1 hour?

A. 3.6 gallons
B. 12.5 gallons
C. 8.8 gallons
D. 6.2 gallons

PLEASE HELP ITS A TEST!!!!

Answers

Answer:

B. 12.5 gallons

Step-by-step explanation:

sense its 6 2/3 gallons ever 30 min it make sence that it would be B im sorry if i dont get it right

Answer: B. 12.5

Explanation: Have a good day!

i need help on thissssssssss

Answers

Answer:

s2Wzwxr tcyvybubububyxrz

Solve for x?


NO LINKS OR FILES

Answers

Answer:

50

Step-by-step explanation:

The triangle is an isosceles triangle as shown with the lines on the sides of the triangles. That means the unknown angle is 35 degrees since angle Q cannot be 35 degrees. Solve the equation:

2x + 80 = 180

2x = 100

x = 50

Can I have Brainliest?

X is 50

The triangle in the picture is an isosceles triangle, that means two of the sides are equal. An isosceles triangle has two equal sides, therefore it also has two equal angles. That means that side QR is equal to QP, which also means that point P and point R have equal angles. We know that the angles in a triangle must always add up to 180°. We already know the information for angle R and angle P so we can add those together, this gets us 70°. We can now build an equation with the information we have: 2x + 10 + 70 = 180. Solve the equation and you’ll have your final product, x = 50.

which point is located on the x-axis​

Answers

download connects works everytime

Answer:

Point C

Step-by-step explanation:

X axis is bottom row and Point C is directly on it.

what is the answer for C = 4π

Answers

Answer: 12.5663706144

Step-by-step explanation: 12.6 becuase you round 12.5 to the nearest tenth.

HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP

Answers

Answer and Step-by-step explanation:

To find the sequence, we must plug in values for n and solve, starting with 0.

f(0) = ⁻13 - 2(0) = ⁻13

f(1) = ⁻13 - 2(1) = ⁻13 - 2 = ⁻15

f(1) = ⁻13 - 2(2) = ⁻13 - 4 = ⁻17

f(1) = ⁻13 - 2(3) = ⁻13 - 6 = ⁻19

When seeing this, we can see that the answer to the questions is A.

#teamtrees #PAW (Plant And Water)

The ____________ organs produce hormones called estrogen and testosterone. *

Answers

Ovaries

The ____________ organs produce hormones called estrogen and testosterone. *

Melissa is saving money to buy a game. So far she has saved $20, which is four-fifths of the total cost of the game. How much does the game cost?

Answers

Answer:

25

Step-by-step explanation:

5 10 15 20 25

Answer:

25 dollars

Step-by-step explanation:

20 divided by 4 equals 5 then times that by 5 equals 25 then thats the total and ur answer is 25

help plllls help
pls​

Answers

Answer:

7) Right triangle

8) Acute

9) Right triangle

10) obtuse

Step-by-step explanation:

help me!!
what's 50×50×50=
thanks!!

Answers

Answer:

solution

50×50×50=125000

Answer:

125000

Step-by-step explanation:

HELP ASAPPPP DUDE PLS PLS PLSSSSSS NOOO LINKS

Answers

Answer:

Step-by-step explanation:

use   25,000*(1-0.15)^8 = $ 6812.26

True or False? When an exponential function decreases, it is called exponential growth.​

Answers

Answer:

When we know the initial population

, the next thing we need to solve the growth constant

to derive the exponential growth function.

If the problem gives the time it takes for the population to double or the doubling time

τ

. We can find the growth constant by substituting the doubling constant into the equation and solving for t.

This means that the statement is TRUE because the term for initial population cancels out when solving for k and the doubling time is given.

Step-by-step explanation:

can i have brainliest

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