If (2a) (2b) = 128, what is a + b equal to?

Answers

Answer 1

The exponents' best option will be determined by

a + b's value is seven.

Describe exponent.

How often a number is multiplied by itself is indicated by the exponent.

For instance

In this case, 2 is multiplied by 4

Now in ( m times)

The base is designated as a, and the power is designated as m.

There are some indexing laws.

[tex]1)a^m \times a^n = a^{m+n}\\2)\frac{a^m}{a^n} = a^{m-n}\\3) (a^m)^n = a^{mn}\\4) (ab)^m = a^mb^m\\5) a^0 = 1\\6) a^{-m} = (\frac{1}{a})^m[/tex]

Here,

[tex](2^a)(2^b) = 128\\[/tex]

[tex]2^{a+b} =2^7[/tex] [According to laws of indices]

[tex]a + b = 7[/tex]

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Complete Question

If [tex](2^a)(2^b) = 128\\[/tex], then a  + b is equal to?


Related Questions

Please help math 100 points its easy.

Answers

From the given statement based on different conditions following are true :

Statement 2, 3, 4 are true

As given in the question,

1. Lisa has 1 4/12 cups of grapes = 16 /12 cups

  Dawn has 1 11/12 cups of grapes = 23 /12 cups

Together they have = (16/12) + (23/12)

                              = (39 /12) cups of grapes

Given statement of 2 1/2 cups of grapes is false.

2. Rachel has 1 7/15 cups of chocolate chips = 22/15

Maya has 8/15 cups of chocolate chips

Rachel has more cups of chocolate chips than Maya

Difference = (22/15) - (8/15)

                 = 14 /15

3. George has 2 5/10 cups of milk = 25 /10

Raymond  has 1 1/10 cups of milk =11 /10

George has more cups of milk than Raymond

Difference = (25 /10) - (11/10)

                = 14/10

                 = 1.4 cups of milk

                 ≈ 1 cup of milk (approximately)

Statement is true.

4. Gavin has 1 13/14 buckets of water = 27 /14

    Devin has  1 3/14 buckets of water = 17 /14

  Together they have = (27/14) +(17/14)  

                =44/14

                 = 3.14

                 ≈ 3(approximately) buckets of water

Statement is true.

Therefore, from the given statement based on different conditions following are true :

Statement 2, 3, 4 are true .

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plsssss helpp me out asap​

Answers

Answer:  [tex]m = 7.3\pi[/tex]

I multiplied both sides by pi to isolate m.

What is .. 9x-4 = 2x +3

Answers

Answer:

X=1

Step-by-step explanation:

9x -4 = 2x+3 :

9x-4=2x+3

9x -4 + 4= 2x + 3+4

Simplify

subtract 2x from both sides

Simplify

Divide both sides by the same factor

simplify

X=1

The answer to your question is X=1

what is x=.30(729). explain

Answers

Answer:

x = 218.7

Step-by-step explanation:

To solve for x, we multiply .30 by 729. Once multiplied, we get the answer 218.7. Therefore, x = .30(729) is the same as x = 218.7.

The linear model represents the height, f(x), of a water balloon thrown off the roof of a building over time, x, measured in seconds. Use the constraints of the real-world situation to predict the height of the water balloon at 15 seconds. Use complete sentences to support your answer.

Answers

From the linear model we can see that the height of the balloon after 15 seconds is 0 feet.

Depending on the context, the phrase "linear model" is used differently in statistics.

The word is frequently used interchangeably with a linear regression model since it occurs most frequently in relation to regression models. The phrase has a different connotation when employed in time series analysis, though. The term "linear" is used in each instance to denote a subclass of models for which a significant decrease in the complexity of the underlying statistical theory is feasible.

From the linear model we can see that the water balloon is thrown from a height of 40 feet upwards.

Now the balloon reaches a height of 70 feet and then falls back down on earth due to gravity.

At about 10 seconds the balloon falls on the ground and splashes.

Hence for further time the balloon is always at the ground.

Therefore at time of 15 seconds the height of the balloon is always 0 feet as represented in the linear model.

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A warehouse is 64 yards​ long, 28 yards​ wide, and 8 yards high. What is the area of the warehouse​ floor? If the warehouse is filled to half its height with tightly packed​ boxes, what is the volume of the​ boxes?

Answers

The volume should be 7168 yards

The area for the floor should be 14,336 yards

Warehouse details:

64 yds long

28 yds wide

8 yds high

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

What is the area of the warehouse​ floor?

the base of the warehouse is 64*28

which is 1792 yds squared

1792 yards squared

If the warehouse is filled to half its height with tightly packed​ boxes, what is the volume of the​ boxes?

half the height of the warehouse is 8/2=

4 yards

the volue of half the warehouse is

1792 * 4 = 7168 yds squared

I'm not quite sure how they want me to answer this but this is all that I got

(this part below can't be trusted)

either the boxes can be 1x1x1 which means 7168 boxes will fit

either the boxes can be 2x2x2 which means 896 boxes will fit

either the boxes can be 3x3x3 which means 265.481481 boxes will fit, which is definetly not it because they said "filled...tightly packed boxes".

plus, we don't know if the boxes are square or rectangle so I'm not sure

The area of a square field is 3.24hectares . Find its perimeter in decimeters

Answers

The filed has a perimeter value of 720000 decimeters

How to determine the perimeter of the field?

From the question, the area of the field is given as

Area = 3.24 hectares

Also, we have the shape of the field to be square

So, we start by calculating the side length of the field using

Length = √Area

Substitute the known values in the above equation

Length= √3.24 hectares

Length= √3.24 * 10000 square meters

Evaluate the square root

Length= 18000 meters

The perimeter is calculated as

P = 4 * Length

So, we have

P = 4 * 18000 meters

Evaluate

P = 72000 meters

Convert

P = 720000 decimeters

Hence, the perimeter is 720000 decimeters

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What is the
Domain??
Someone pls help me outtt

Answers

Answer:

:]

Step-by-step explanation:

[tex]-2\leq x\leq 2[/tex]

Answer:

In mathematics, the domain of a function is the set of inputs accepted by the function. It is sometimes denoted by {\displaystyle \operatorname {dom} } or {\displaystyle \operatorname {dom} f}, where f is the function

Can you please help with with this?
Thanks

Answers

Answer:

slope is 3

Step-by-step explanation:

8-5/-2-(-3)=3/1=3 3 is the slope

Which expression is equivalent to t+4+3-2t

Answers

Answer:

7-t

Step-by-step explanation:

t+4+3-2t

= t+7-2t

= -t+7 or 7-t

HELP ASAP NEEDS TO BE DONE BY TONIGHT

Answers

Answer: y = (5x/4) + 2

Step-by-step explanation:

Answer:

y = 5/4x + 2

Step-by-step explanation:

First, we convert 4x + 5y = 15 to slope intercept form (y=mx+b):

5y = -4x + 15

Divide both sides by five

y = -4/5 (x) + 3

The slope is -4/5

A perpendicular slope is the negative reciprocal of the other line. To find the negative reciprocal, you switch the numerator and denominator and switch the sign.

Slope = 5/4

Plug the slope and (-4, -3) into the slope-intercept form:

-3 = ( 5/4 · -4 ) + b

Isolate b (the y-intercept):

-3 = -5 + b

b = 2

y = 5/4x + 2

The finish line is 253 m away. You begin to run from rest. You must reach a velocity of 53.2 m/s or you will explode. What must your acceleration be?

Answers

The acceleration require for the body to not explode will be 0.2941[tex] m/s^2 [/tex]

The finish line as given is 253m away so that distance to be covered will be 253m.

Also we had started to run from rest so that initial velocity will be 0m/s.

We should take care that we could not explode and this is possible only if we reach to the velocity of 53.2m/s. So our final velocity will be 53.2m/s.

Now average velocity will be the sum of initial velocity and final velocity divided by 2.

∴ Average velocity  =  (initial velocity + final velocity) / 2.

∴ Average velocity = (0 + 53.2) / 2 = 53.2 / 2 = 26.6m/s

As we know that average velocity will give us an average time of the run by formula average speed = distance / average time.

∴ Average time = distance / average speed

∴ Average time = 253 / 26.6 = 9.51s.

Now as we know by the formula to calculate acceleration we need the average velocity, average time and we have both of them.

∴ Acceleration = [tex] \frac{average\ velocity}{(average\ time)^2}[/tex]

∴ Acceleration = [tex] \frac{26.6}{(9.51)^2}[/tex]

∴ Acceleration = [tex] \frac{26.6}{90.44}[/tex]

∴ Acceleration = 0.2941[tex] m/s^2 [/tex]

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Eden is creating a presentation about bee hummingbirds in PowerPoint Online, She would like to add an image to her side about how they collect nectar. What is the most relevant image she should add to her slide?​

Answers

From following steps, she can add relevant pictures to her slide.

What is PowerPoint?

It is a presentation-based program that employs graphics, movies, etc. to enhance the interactivity and appeal of a presentation. A saved PowerPoint presentation has the ".ppt" file extension. PPT is another name for a PowerPoint presentation that includes slides and other elements. Create presentations from scratch or using a template with PowerPoint on your PC, Mac, or mobile device. Include text, pictures, artwork, and videos. Using PowerPoint Designer, pick a polished layout. Cinematic motion, transitions, and animation should be added.

Given Data

Eden is creating a presentation about bee hummingbirds in PowerPoint Online, She would like to add an image to her side about how they collect nectar.

From following steps, she can add relevant pictures to her slide.

Open the slide to which you wish to add a photograph.

Point to Picture in the Insert menu, and then click Photo Browser.

Navigate to the image you want to insert in the dialogue box that appears, click it to pick it.

Then drag it to the slide.

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[PLS HELP I’LL RATE BRAINLIEST] What is the measure of (5y+5)

Answers

Answer:

5y + 5 = 80

Step-by-step explanation:

5y + 5 +6y + 10 = 180  A straight angel is 180  Combine like terms

11y +15 = 180  Subtract 15 from both sides

11y = 165  Divide both sides by 11

y = 15  Substitute 15 in for y

5y + 5

5(15) + 5 = 80

Answer:

80 THIS TOOK ME SO LONG LOL

Step-by-step explanation:

Add all like terms together:

11y+15=180

And then subtract 15:

11y=165

Then Divide by 11:

y=15

Then you input the Y and solve:

5(15)+5

75+5

80

22. A student recorded her scores on weekly math quizzes that were marked out of a
possible 10 points. Her scores were as follows:
8, 5, 8, 5, 7, 6, 7, 7, 5, 7, 5, 5, 6, 6, 9, 8, 9, 7, 9, 9, 6, 8, 6, 6, 7

What is the mode of her scores on the weekly math quizzes?

Answers

Answer:

6 since it occurs the most times

7 or 6 they both occur 6 times

Solve 3(2m + 1) − 3m = −12. m = −5 m equals negative 13 over 3 m equals negative 15 over 6 m = −0.33

Answers

The value of m from the given equation is -5. Therefore, option A is the correct answer.

The given equation is 3(2m+1)-3m=-12.

What is an equation?

In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.

A general rule for equation solving:

Remove parentheses from each side of the equation and combine similar phrases to make it simpler.To separate the variable term on one side of the equation, use addition or subtraction.To find the variable, use division or multiplication.

The given equation can be solved as follows:

6m+3-3m=-12

⇒ 3m+3=-12 (Subtract the like terms)

⇒ 3m=-12-3 (Transpose 3 to other side of the equation)

⇒ 3m=-15

⇒ m=-15/3 (Transpose 3 to other side of the equation)

⇒ m=-5

The value of m from the given equation is -5. Therefore, option A is the correct answer.

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Answer:

m=-5

Step-by-step explanation:

CAN SOMEONE HELP
BD//EF, BF//DE
AB=8cm BC=12cm
x=?​

Answers

The value of x is 4.8cm.

Here BD // EF and BF // DE

So from this, we have ∠ABF = ∠EFC

Let's take two triangles ΔABC and ΔFCE

∠C =∠C (common angle)

∠ABC = ∠EFC

So ΔABC ≅ ΔEFC

So ∠BAC = ∠FEC

AB/ EF = BC/ FC

AB = 8cm, EF =x, BC = 12cm, FC= 12-x

8/x = 12/ 12-x

2/x = 3/ 12-x

24 - 2x = 3x

5x = 24

x = 4.8cm

Therefore the value of x is 4.8cm.

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need help please
mrs dawson bought 6 new plants for her garden each plant cost $5 the store gave her a discont so she only paid 2/3 pf a ragular price for each plant
use the propertys of multiplation to find the total cost for all the plants
A. $3.33
B. $20.00
C $45.00
D. $30.00

Answers

Answer:

B

Step-by-step explanation:

6x5=30

30x2/3=20

What is 6/7 of 2/3 ? PLEASEE HELPPP-

Answers

Answer:

4/7

Step-by-step explanation:

6/7 of 2/3

= 6/7 * 2/3

= 12/21

= 4/7

Under her cell phone plan, Salma pays a flat cost of $55 per month and $5 per gigabyte. She wants to keep her bill under $75 per month. Use the drop-down menu below to write an inequality representing gg, the number of gigabytes she can use while staying within her budget.

Answers

69. Is it ok to have you in your room or something to say hello there per month

Anton picks corn at a local farm. He is paid 80 cents per bushel for the first 50 bushels, 90 cents per bushel for the next 50 bushels, and 95 cents per
bushel for all bushels picked over 100.
Determine how much Anton would earn if "x" is 128 bushels. $

Answers

First 50 bushels: 0.80 x 50 = 40
Next 50 bushels: 0.90 x 50 = 45
Remaining bushels: 0.95 x 28 = 26.6

$40 + $45 + $26.6 = $111.6

Anton would earn $111.6 if "x" is 128 bushels.

What is an equation?

An equation is an expression that shows the relationship between two or more numbers and variables.

A mathematical equation is a statement with two equal sides and an equal sign in between. An equation is, for instance, 4 + 6 = 10. Both 4 + 6 and 10 can be seen on the left and right sides of the equal sign, respectively.

We are given that Anton picks corn at a local farm.

Anton is paid 80 cents per bushel for the first 50 bushels, 90 cents per bushel for the next 50 bushels, and 95 cents per bushel for all bushels picked over 100.

Thus, First 50 bushels: 0.80 x 50 = 40

Next 50 bushels: 0.90 x 50 = 45

Remaining bushels: 0.95 x 28 = 26.6

Total = $40 + $45 + $26.6 = $111.6

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Nina can ride her bike 63,360 feet in 3,400 seconds, and Sophia can ride her bike 10 miles in 1 hour. What is Nina’s rate miles per hour if there are 5,280 feet in a mile?
Which girl bikes faster?

Answers

We know that
3600 seconds = 1 hour
Then
3400 seconds = 3400/3600
= 17/18 hours
5280 feet = 1 mile
Then
63360 feet = 63360/5280 mile
= 12 mile
© 239 # 4.7
So
Distance covered by Nina in 17/18 hours = 12 mile
Then
Distance covered by Nina in 1 hour = 12/(17/18)
miles
= 12.71 miles.
From the above deduction, we can conclude that the speed of Nina is 12.71 miles per hour.
Speed of Sophia is 10 miles per hour. So Nina is the girl that rides at a faster speed.

Brown bears attempt to catch salmon. during the day, 20% of the attempts are successful. during the night, 36% of attempts are successful. a bear tries to catch 40 fish during the day and makes 50 attempts at night. use probability to estimate the number of fish the bear caught.

Answers

The probability for the number of fish the bear caught is 0.289

Given,

Number of fish the bear tries to catch during day = 40

Number of attempts made by the bear at night = 50

Percentage of successful attempts during day = 20%

Percentage of successful attempts at night = 36%

Number of fish the bear caught during day = 40 × (20/100) = 4 × 2 = 8 fish

Number of fish the bear caught at night = 50 × (36/100) = 36/2 = 18 fish

Total number of fish the bear caught = 8 + 18 = 26 fish

Now,

Probability for the number of fish the bear caught:

Probability = Number of fish caught / Total attempts

Probability = 26 / (40 + 50)

Probability = 26 / 90

Probability = 0.289

Therefore,

The probability for the number of fish the bear caught is 0.289

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How would you write (a-b)^5 without simplifying it?

Answers

The way we can write the expression (a - b)⁵ without simplifying is by using Pascals' Triangle to get; a⁵ + 5a⁴b + 10a³b² + 10a²b³ + 5ab⁴ + b⁵

How to use Pascals' Triangle of binomial coefficients?

Pascal’s Triangle is a method that is used to know the binomial coefficients of terms of binomial expression (x + y)ⁿ, where n can be any positive integer and x,y are real numbers.

For the expression (x + y)⁵, the coefficients are;

1, 5, 10, 10, 5, 1

According to the binomial expansion, the power of m will be decreasing while the power of 5 will be increasing as shown below. Thus;

(a - b)⁵ = (a + (-b))⁵ = a⁵ + 5a⁴b + 10a³b² + 10a²b³ + 5ab⁴ + b⁵

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What is the answer please…

Answers

Answer:

answer is T 25............

Which choice shows 2-3-15 rewritten correctly using the commutative property and then simplified correctly?

Answers

According to the commutative property of addition, you can rearrange the addends without altering the result.

2 + (-3) +(-15) = (-3) +(-15) +2

What is commutative property? Commutative law merely asserts that while adding and multiplying integers, you can rearrange the numbers in a problem without changing the solution. Division and subtraction do not work interchangeably.According to the commutative property of multiplication, the result will always be the same regardless of the sequence in which the numbers are multiplied.According to the associative property of addition, you can arrange the addends in several ways without changing the result. According to the commutative property of addition, you can rearrange the addends without altering the result.

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What are the coordinates of the point on the directed line segment from (3,−3) to (7,5) that partitions the segment into a ratio of 5 to 3

Answers

The coordinates along the directed line segment is (37/7, 11/7)

How to find the coordinates of the point?

The points are given as:

A  = (3, -3)

B = (7, 5)

The ratio on the segment can be represented as;

m : n = 4 : 3

So, we have the coordinates of the point that lies along the directed line segment to be

Point = 1/(m + n) * (mx2 + nx1, my2 + ny1)

So, we have:

Point  = 1/(4 + 3) * (4 * 7 + 3 * 3, 4 * 5 + 3 * -3)

Evaluate

Point  = 1/7 * (37, 11)

Evaluate the products

Point  = (37/7, 11/7)

Hence, the coordinates of the point is (37/7, 11/7)

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please help ASAP

Brainliest

Answers

Answer:

Check-mark the ones with the number 7

Step-by-step explanation:

A new health drink has 130% of the recommended daily allowance (RDA) for a certain vitamin. The RDA for this vitamin is 45 mg. How many milligrams of the vitamin are in the drink?

Answers

In the drink , there are 58.5 milligrams of vitamin  .

In the question ,

it is given that

the recommended daily allowance for a certain vitamin is = 45 mg

we have to find the quantity of the vitamin in  the drink ,

also given that the amount of vitamin that the new drink has is = 130% of RDA ,

on substituting the value of recommended daily allowance ,

we get

amount of vitamin in the drink is = 130% × 45

= 1.3 × 45        ... because 130% = 1.3

= 58.5 mg

Therefore , the drink has 58.5 milligrams of the vitamin .

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Please help me
What is the sign of 3.456 + \left(-3.456\right)3.456+(−3.456)

A. Positive

B. Negative

C. Neither positive nor negative—the sum is zero.

Answers

The sign of 3.456+(-3.456) is neither positive nor negative—the sum is zero.

We are asked to find the sign of 3.456+(-3.456)

This expression can be simply written as 3.456 - 3.456 because of the identity we have, x+(-y) = x-y

Now if same quantities are subtracted, we get zero only.

Also zero is neither positive nor negative.

Hence there is no sign for 3.456+(-3.456).

Also 3.456+(-3.456) = 0.

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