Evaluate. Round your answer to the nearest thousandth.
log4 ^21

Evaluate. Round Your Answer To The Nearest Thousandth.log4 ^21

Answers

Answer 1

[tex]\log_4 21 = \dfrac{1}{2}\cdot \log_2 21 = \dfrac{1}{2}\cdot \left(\log_23+\log_2 7\right) \approx \dfrac{1}{2}\cdot\left(1.584+2.807\right) \approx 2.196[/tex]


Related Questions

Factor the polynomial 8x² − 24x − 224 completely. help now!

Answers

Answer:

8 ( x  −  7 )  ( x  +  4 )

Step-by-step explanation:

You have 29 thirds. This is a fraction greater than one.
How many wholes can I make with that?
How many thirds would be left over?

Answers

You could make 9 wholes with that and there would be 2 thirds left over.

To solve it you would just have to divide 29 by 3 which would give you 9 and leave you with 2 thirds left.

Simplify (2V5 - 4)(3 V5+2).
a.
4
c.
b.
8-4v5
d. 22-8v5

Answers

Answer:

[tex](2\sqrt{5} - 4)(3\sqrt{5}+2)= 22 - 8\sqrt{5}[/tex]

Step-by-step explanation:

Given

[tex](2\sqrt{5} - 4)(3\sqrt{5}+2)[/tex]

Required

Simplify

[tex](2\sqrt{5} - 4)(3\sqrt{5}+2).[/tex]

Expand brackets

[tex]2\sqrt{5}(3\sqrt{5}+2). - 4(3\sqrt{5}+2).[/tex]

Open each bracket

[tex]2\sqrt{5}*3\sqrt{5}+2\sqrt{5}*2 - 4*3\sqrt{5}-4*2[/tex]

[tex]6 * 5 + 4\sqrt{5} - 12\sqrt{5} - 8[/tex]

[tex]30 + 4\sqrt{5} - 12\sqrt{5} - 8[/tex]

Collect Like Terms

[tex]- 8+30 + 4\sqrt{5} - 12\sqrt{5}[/tex]

[tex]22 - 8\sqrt{5}[/tex]

Hence:

[tex](2\sqrt{5} - 4)(3\sqrt{5}+2)= 22 - 8\sqrt{5}[/tex]

Help me pls thank you sooooo much

Answers

Answer: Length: 24

Step-by-step explanation:

Answer:

I think its 32.4

Step-by-step explanation:

324/30=10.8

10.8*3=32.4! Hope this helped!! :)

pls help pls or i will fail pls hurry

Answers

mean- 60
mode- 48
median- 56
range- 32

Answer:

Mean = 60

Median = 56

Mode = 48

Range = 32

Step-by-step explanation: You can find the Mean by adding all the number together then dividing by how many number in the problem. So, 48 + 64 + 80 + 48 = 240 then, divide by 4, which is how many numbers are in this equation.  You can find the Median by putting the numbers in the equation in order, 48, 48, 64, 80. Then, you will find what number is in the middle, or look at it as for the number in the middle to have the same amount of numbers on each side. So, in this case 48 and 64 are in the middle. There are two numbers in the middle instead of one, so you have to add them together to get 112 then divide by 2, because it is how many numbers you added together. You can find the Mode by seeing what number occurs the most, which in this case is 48, it appears two times. Sometimes, there will be no mode. You can find the Range by putting the numbers in order and subtracting the highest amount from the lowest amount, which in this case is 80 - 48 = 32. Hope this helps ^-^

What general equation is suggested by the graph line?

y = mx + b
y = k(1/x)
y = kx2

Answers

Y=mx+b is suggested by the graph line

Answer:

y=mx+b

Step-by-step explanation:

I took the test :)

Write an equation in slope intercept form that passes through the point (2,-2), and has a slope that equals -2 (please hurry)

Answers

Answer:

y = -2x + 2

Step-by-step explanation:

Plug in the point and slope into y = mx + b, and solve for b:

y = mx + b

-2 = -2(2)  + b

-2 = -4 + b

2 = b

Plug in the slope and y intercept into y = mx + b

y = -2x + 2

So, the equation is y = -2x + 2

Sorry for the bad picture quality, lol trust me I’m not android user... bUt I really am struggling! Help!-

Answers

Answer:

a to u

Step-by-step explanation:

Maria had $22 to spend on five pencils. After buying them she had $12.
How much did each pencil cost

Answers

22-12=10, so 10 divided by 5 is equal to 2. each pencil cost 2 dollars :) i would rlly appreciate being marked brainliest !
$2 each. 22-10=12/5=2

Jenniter's bill for lunch was $15.00 if Jennifer left a 20% tip, which proportion would BEST represent how to find how much tip she should leave? 15 100 20 B — 20 100 15 15 20 100 O D 15 100​

Answers

Answer:

Well, I usually multiply this which would be 15 x .2 which would equal the tip.

Step-by-step explanation:

Add negative 8 + positive 8

Answers

Answer: 0

Step-by-step explanation: -8+8=0

Answer:

0

Step-by-step explanation:

So if you have -8 and 8 and you add them together they cancel out each other and make 0

Pls help urgently extra points and mark brainlist sorry it’s reading but easy

Answers

Answer:

Gather

Step-by-step explanation:

Answer: Gather

Hope this helps!

. What will be the coordinates of point T after a 180° rotation about the origin? ​

Answers

Step-by-step explanation:

180 Degree Rotation

When rotating a point 180 degrees counterclockwise about the origin our point A(x,y) becomes A'(-x,-y)

Dan is moving old monitors and printers from an office to a local electronic recycling center. Danhas to move a total number of 60 printers and monitors with a combined weight of 1750 lbs. One monitor weighs 35 pounds, and a printer weighs 25 pounds. Does Dan recycle a greater weight of printers or monitors. Explain using a system of equation. ​

Answers

Answer:

Dan is recycling equal weight of printers and monitors.

Step-by-step explanation:

Let,

x be the number of printers

y be the number of monitors

According to given statement;

x+y=60      Eqn 1

25x+35y=1750   Eqn 2

Multiplying Eqn 1 by 25

25(x+y=60)

25x+25y=1500    Eqn 3

Subtracting Eqn 3 from Eqn 2

(25x+35y)-(25x+25y)=1750-1500

25x+35y-25x-25y=250

10y = 250

Dividing both sides by 10

[tex]\frac{10y}{10}=\frac{250}{10}\\y=25[/tex]

Putting y=25 in Eqn 1

x+25=60

x=60-25

x=35

Weight of printers = 35*25 = 875 lb

Weight of monitors = 25*35 = 875 lb

Therefore,

Dan is recycling equal weight of printers and monitors.

A certain population increases at a rate proportional to the square root of the population. If the population goes from 2500 to 3600 in five years, what is the population at the end of t years

Answers

Answer:

[tex]P(t) = (2t + 50)^2[/tex]

Step-by-step explanation:

A certain population increases at a rate proportional to the square root of the population.

This means that the population can be described by the following differential equation:

[tex]\frac{dP}{dt} = r\sqrt{P}[/tex]

In which r is the growth rate.

Solving by separation of variables, we have that:

[tex]\frac{dP}{\sqrt{P}} = r dt[/tex]

Integrating both sides:

[tex]2\sqrt{P} = rt + K[/tex]

In which K is a random constant

[tex]\sqrt{P} = 0.5rt + K[/tex]

Finding the squares of both sides:

[tex]P(t) = (0.5rt + K)^2[/tex]

Finding the value of K

The initial population is of 2500. That is, when [tex]t = 0, P = 2500[/tex]. So

[tex]P(t) = (0.5rt + K)^2[/tex]

[tex]2500 = (0.5r(0) + K)^2[/tex]

[tex]K^2 = 2500[/tex]

[tex]K = \sqrt{2500}[/tex]

[tex]K = 50[/tex]

So

[tex]P(t) = (0.5rt + 50)^2[/tex]

Finding the value of r

Population of 3600 in 5 years(when t = 5). So

[tex]P(t) = (0.5rt + 50)^2[/tex]

[tex]3600 = (0.5r(5) + 50)^2[/tex]

[tex](2.5r + 50)^2 = 3600[/tex]

Taking the square root of both sides

[tex]\sqrt{(2.5r + 50)^2} = \sqrt{3600}[/tex]

[tex]2.5r + 50 = 60[/tex]

[tex]2.5r = 10[/tex]

[tex]r = 4[/tex]

So, the equation for the population at the end of t years is given by:

[tex]P(t) = (0.5rt + 50)^2[/tex]

[tex]P(t) = (0.5(4)t + 50)^2[/tex]

[tex]P(t) = (2t + 50)^2[/tex]

HELP I NEED HELP ON THIS ASSIGNMENT

Jeff invested 3000 dollars into an account that gives 6.5% interest, compounded annually. The formula of the compound interest is A(t)=P(1+i)^t.


How much did Jeff have after three years?

Answers

Answer:

he will have $3623.85 after 3 years.

Graphing Ratios Which line includes the ratios in the table? Reading a Graph All the ratios lie on line

Answers

Answer:

b

Step-by-step explanation:

pls give the right answer to this question it is not 0.45662100456

Answers

Answer:

2.19

Step-by-step explanation:

Answer:

2.19

Step-by-step explanation:

What is the best estimate for 18.301 ÷ (-5.927)?

Answers

Answer:

negative 3.08

Step-by-step explanation:

The perimeter of a picture frame is 68 inches. The difference between the length of the frame and th
times its width is 2. The system of equations

Answers

Answer:

L - W = 2 and 2L + 2W = 68

Step-by-step explanation:

The two equations here are going to be-

Length minus width equals 2

L - W = 2

And

Length x 2 + Width x 2 = 68

2L + 2W = 68

please help it would mean so much to im stressed out​

Answers

5) the line goes diagnol right throuh the zero from the bottom left corner to the top right.

6) straight line across 3 (3,0)

7) straight line across -2 (-2,0)

8) its a open dot on 1 with the line going right

9) ok so they are both intercecting im pretty sure its a no solution tho

can someone help me plz

Answers

14,606 is the right answer

keith reads 30 pages in 3 hours how many pages did he read per hour?

Answers

Answer:

10 pages per hour

Step-by-step explanation:

3*10=30

have a wonderful night:)

A simple random sample of 25,000 individuals are surveyed in order to determine the prevalence of individuals that contracted the flu in the past year. Assuming 4,250 individuals indicated they had been diagnosed with the flu at some point in the past year, what is the prevalence of flu for the past year, as indicated from the survey participants

Answers

Answer:

The prevalence of flu for the past year, as indicated from the survey participants, was of 17%.

Step-by-step explanation:

Given the survey, the prevalence of the flu, as a percentage, is given by:

Number of individuals diagnosed with flu, multiplied by 100, and divided by the size of the sample.

In this question, we have that:

Sample of 25,000, and 4,250 of those had been diagnosed with the flu at some point in the past year. So, the prevalence of the flu is given by:

[tex]\frac{4250*100}{25000} = 17[/tex]

The prevalence of flu for the past year, as indicated from the survey participants, was of 17%.

==50 POINTS==
Select all the correct answers.
Which expressions are equivalent to this exponential expression?

⇒⇒
PLEASE HELP

A- 6⁻⁶
B- 6⁶
C- 1/6⁶
D- 1/6⁻⁶
E- 1/36

Answers

Answer: A and D thanks for th 25 pts

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

)) What is the area of this figure?
3 mi
5 mi
8 mi
15 mi
6 mi
18 mi
8 mi
9 mi
Write your answer using decimals, if necessary.
square miles

Answers

Answer:

678182829jijsjsjsjsjskskwkdkw

Area of the given figure is 199.5 square miles.

What is Area?

Area of a two dimensional shape is the total region which is bounded by the object's shape.

The given figure can be divide in to smaller figures to find the area of each smaller figure and add it.

A rectangle with sides 5 miles and 3 miles.

A rectangle with sides 15 miles and 6 miles.

A rectangle with sides (8 - 5) + 6 = 9 miles and 3 miles.

A triangle with base length 9 miles and height 8 + 6 + 3 = 17 miles.

Area = (5 × 3) + (15 × 6) + (9 × 3) + (1/2 × 9 × 17)

        = 15 + 90 + 18 + 76.5

        = 199.5 square miles

Hence the area of the given figure is 199.5 square miles.

Learn more about Area here :

https://brainly.com/question/23718948

#SPJ2

A colony of 100,000 ants has been declining in number at a rate of 11.4% per month. If allowed to decline uninhibited, how long will it take the population to decrease to 25,000 ants? Round to the nearest tenth.

a. 17.6 months
b. 12.2 months
c. 5.3 months
d. 24.3 months

Answers

Answer:

b. 12.2 months

A percentage is a way to describe a part of a whole. The correct option is B.

What are Percentages?

A percentage is a way to describe a part of a whole. such as the fraction ¼ can be described as 0.25 which is equal to 25%.

To convert a fraction to a percentage, convert the fraction to decimal form and then multiply by 100 with the '%' symbol.

Given that the colony of 100,000 ants has been declining in number at a rate of 11.4% per month. Therefore, the number of months it will take for the ant population to reach 25,000 ants is,

Population = 100,000(1-0.114)ⁿ

25,000 = 100,000(1-0.114)ⁿ

0.25 = 0.886ⁿ

log(0.25) / log(0.886) = n

n = 11.45335

Since the value is close to 12.2 months.

Hence, the correct option is B.

Learn more about Percentages:

https://brainly.com/question/6972121

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welp this is me with my instrument...i look weird

Answers

Answer:

wow i have never seen that instrument before.

Step-by-step explanation:

1/4 ÷ (−3/8) Can anyone help me with this?

Answers

Answer:

Fraction:

- 2 over 3

Decimal: -0.66666666

(- Repeating Decimal-)

Step-by-step explanation:

What is 1.2 divided by 25?

A. 0.48
B. 0.0048
C. 48.0
D. 00.48

Answers

Answer:

D 0.048

Step-by-step explanation:

Answer:

0.048

Step-by-step explanation:

0.048 is the correct answer but I don't see that choice.

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