What is log base 5(4*7 )+log base 5 of 2 written as a single log?
A.log base 5 of 21
B.log base 5 of 26
C.log base 5 of 30
D.log base 5 of 56

Answers

Answer 1
The answer for the exercise shown above is the last option (Option D), which is:

 D. log base 5 of 56

The explanation is show below:

 1. You have the following logarithm expresssion:

 log5(4*7 )+log5(2)

 2. By the logarithms properties, you can rewrite the logarithm expression as following:

 log5(28)(2)
 log5(56)

 3. Therefore, as you can see, the answer is the option mention before.
 
Answer 2

Answer:

D. log base 5 of 56

Step-by-step explanation:

Since, by the multiplication law of logarithm,

[tex]log_a(m)+log_a(n) = log_a(mn)[/tex]

Given expression is,

log base 5(4*7 )+log base 5 of 2

[tex]=log_5(4\times 7)+log_5(2)[/tex]

[tex]=log_5(28)+log_5(2)[/tex]

By the above property,

[tex]=log_5(28\times 2)[/tex]

[tex]=log_5(56)[/tex]

= log base 5 of 56

Hence, Option D is correct.


Related Questions

what is the value of the expression?

Answers

To solve this we are going to use the unitary circle and the fact that [tex]tan \alpha = \frac{sin \alpha }{cos \alpha } [/tex]

From our circle we can infer that [tex]sin\frac{5 \pi }{3}= \frac{- \sqrt{3} }{2} [/tex] and [tex]cos\frac{5 \pi }{3}= \frac{1}{2} [/tex].

Since [tex]tan \alpha = \frac{sin \alpha }{cos \alpha } [/tex], [tex]tan\frac{5 \pi }{3}= \frac{\frac{- \sqrt{3} }{2}}{\frac{1}{2} } [/tex]
[tex]tan\frac{5 \pi }{3}=- \sqrt{3} [/tex]

We can conclude that [tex]tan\frac{5 \pi }{3}=- \sqrt{3} [/tex].

HELP!!!!!!What is the equation of the graph below?

Answers

The answer to your question is y = sin(x + 90) as we have a sine graph phase shifted 90 units left

Henry has a defined benefit plan that promises a 2.5% annual retirement benefit based on the average of his last five years of salary. At retirement Henry has 21 years of service and an average salary over the last five years of $95,000. What will his annual benefit be?

Answers

Henry's annual retirement benefit will be $2,375.

We have,

To calculate Henry's annual retirement benefit, we need to find 2.5% of his average salary over the last five years.

First, let's calculate 2.5% of $95,000:

2.5% = 2.5/100 = 0.025

Annual benefit = 0.025 * $95,000

Annual benefit = $2,375

Therefore,

Henry's annual retirement benefit will be $2,375.

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Cans of juice cost 25p each to produce
There are 6 cans in a pack.
12 packs are sold at £3.60 each.
What is the profit?

Answers

 the profit is 1.60 beacuse at 25  cents times 6 is two dollars and since it is 3.60 the profit is 1.60 and 1.60 times twelve is 19.20 so the answer is 19 dollars  and twenty cents

Help needed soon. please

Answers

For this case we first define variables:
 x = daisies flowers
 y = roses flowers
 We write the system of equations:
 x + 2y = 33
 x = y + 3
 Solving the system we have:
 x = 13
 y = 10
 Therefore, the cost of roses is:
 2 * y = 2 * 10 = 20 $
 Answer:
 
Roses = $ 20

Compute the stock turnover in dollars for a product that has sales of $6,000 and an average value of inventory investment of $1,500.

Answers

Question: It should be inventory turnover.

Solution:
Inventory turnover = Cost of goods sold/Average inventory

Substituting the values given for cost of goods and average inventory;
 Inventory turnover = 6,000/1,500 = 4

Answer: 4

Step-by-step explanation:

Given: Cost of product sold = $6,000

Average value of inventory= $1,500

We know that the inventory turnover formula is given by :-

[tex]\text{Inventory turnover}=\frac{\text{ Cost of product sold}}{\text{Average value of inventory}}[/tex]

[tex]\\\Rightarrow\ \text{Inventory turnover}=\frac{\$6,000 }{\$1500}\\\\\Rightarrow\ \text{Inventory turnover}=4[/tex]

Therefore, the stock turnover for a product that has sales of $6,000 and an average value of inventory investment of $1,500 = 4

The unt informs club has 16 members. they need to elect a president, a vice president, a secretary and a treasurer. how many different ways can this group of 4 officers be formed? (order is important)

Answers

If they needed to elect just the president there could be 16 possible combination. If they needed to elect the president and the vice there could be 16×15 possible combination, because each president could have 15 possible vice. So the possible combination are 16×15×14×13=43 680.

Hope this helped!

A survey of 80 students found that 24 students both play in the band and play a sport. But 22 students are not in band and do not play a sport. There are 48 students in the band. If being in band is the row variable and playing sports is the column variable, fill in the labels in the table. tables Which of the following correctly represents the given data in the problem?

Answers

We have that 48 students are in the band and that 24 out of them also play sport. Hence, in total 24 students are in the band but dont play sports. We have that there are 4 categories and we know the other 2 categories (do both, do none). There is a 4th category, only sports. We know that the sum of all those categories is 80 (since a student either does or does not a combination of those). Hence, 80=24+24+22+x. We have that x=10, hence 10 students play sports but are not in the band.

D) a = 24, c = 48, e = 22, i = 80


Please help me, if you'd be so kind.

A right rectangular prism is shown.

What is the length of DH¯¯¯¯¯¯ to the nearest tenth of an inch?

Drag and drop the answer into the box.

Answers

[tex]\overline{DH}=\sqrt{3^2+1.5^2+1^2}=\sqrt{9+2.25+1}=\sqrt{12.25}=\boxed{3.5}[/tex]

someone please help asap! Which statement is most likely true for this distribution?

Answers

Answer:

C) The mean is greater than the median.

Step-by-step explanation:

This distribution is right skewed; that means it has a longer tail to the right and the data is "bunched up" at the left.

In a right skewed distribution, the majority of data points are at the smaller end; for this reason, the median will be towards the left side of the graph.

The higher numbers in the "tail" will bring the mean up, making it larger than the median.

The correct statement for the distribution is the mean is greater than the median.

What is mean and median?

The mean is the average of a data set. The arithmetic mean is found by adding the numbers and dividing the sum by the number of numbers in the list.

The median is the middle term of a distribution.

It measure determines the middle value of a dataset listed in ascending order.

Therefore, from the distribution the data are rightly skewed. The higher numbers in the "tail" will bring the mean up, thereby making it larger than the median.

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what is the sum of the geometric series E (-2)(-3)^n-1

Answers

Sum of the geometric series: S=?
S=(-2)(-3)^(1-1)+(-2)(-3)^(2-1)+(-2)(-3)^(3-1)+(-2)(-3)^(4-1)
S=(-2)[(-3)^0+(-3)^1+(-3)^2+(-3)^3]
S=(-2)[1+(-3)+9+(-27)]
S=(-2)(1-3+9-27)
S=(-2)(-20)
S=40

Answer: Third option 40

Answer:

The sum is 40.

Step-by-step explanation:

Given,

[tex]\sum_{n=1}^{4} (-2)(-3)^{n-1}[/tex]

We know that,

[tex]\sum_{n=1}^{4} (-2)(-3)^{n-1}=(-2)(-3)^{1-1}+(-2)(-3)^{2-1}+(-2)(-3)^{3-1}+(-2)(-3)^{4-1}[/tex]

[tex]=(-2)(-3)^{0}+(-2)(-3)^1+(-2)(-3)^2+(-2)(-3)^3[/tex]

[tex]=-2\times 1 - 2\times - 3 - 2\times 9-2\times -27[/tex]

[tex]=-2+6-18+54[/tex]

[tex]=40[/tex]

Hence,

[tex]\sum_{n=1}^{4} (-2)(-3)^{n-1}=40[/tex]

This is a question about inverse/transcendental functions. Can anyone confirm that the answer is D? The question is asking which statement is FALSE, and I'm bouncing back and forth a bit.

Answers

Your choice is correct. The slope of the function on the interval is negative. The slope of the inverse function is the reciprocal of that, still negative.

It is NOT true that [tex]\dfrac{d}{dx} \left( f^{-1}(x) \right) \ge 0[/tex]

|-x-2y| for x =-3 and y=3

Answers

[tex]|-x-2y|\ for\ x=-3\ and\ y=3.\\\\substitute:\\\\|-(-3)-2\cdot3|=|3-6|=|-3|=3[/tex]

How many arrangements are possible using the letters in the word fuzzy if each letter "z" is distinctly different than the other? how many arrangements are possible if the letter "z" is interchangeable with the other? explain your reasoning?

Answers

If the letter z's are distinctly different, there are P(5,5) arrangements. That is 
    [tex]P\left(5,5\right)=5!=5\cdot 4\cdot 3\cdot 2\cdot 1=120[/tex]

If the z's are interchangeable, the number of different arrangements is given by 
     [tex]\frac{5!}{2!}=5\cdot 4\cdot 3=60[/tex]

When each letter "z" is distinctly different, there are 60 possible arrangements.
When the letter "z" is interchangeable with the others, there are 24 possible arrangements.

1. When each letter "z" is distinctly different from the others:
- The word "fuzzy" has 5 letters in total, including 2 "z" letters.
- To calculate the number of arrangements, we use the formula for permutations with repeated elements:
- The formula is: n! / (n1! n2! ... * nk!)
- n is the total number of letters in the word (5 in this case).
- n1, n2, ... are the number of repetitions of each distinct letter.
- Calculating: 5! / (1! 2! 1! * 1!) = 120 / 2 = 60 arrangements.

2. When the letter "z" is interchangeable with the other letters:
- In this case, there are 4 distinct letters in the word "fuzzy" (f, u, z, y).
- The total number of arrangements can be calculated using the formula for permutations of distinct items.
- Calculating: 4! = 24 arrangements.
In summary:
- When each letter "z" is distinctly different, there are 60 possible arrangements.
- When the letter "z" is interchangeable with the others, there are 24 possible arrangements.

PLS HELP! Tanisha is planning a party. She will serve hamburgers, potato salad, strawberry shortcake, and lemonade. Including Tanisha, 28 people will be at the party. Tanisha expects that each person will drink two 8−ounce glasses of lemonade at the party, and makes 448 ounces of lemonade. Tanisha's mother buys 38 lemons. They know it takes 8 lemons to make 80 ounces of lemonade. Does Tanisha need more lemons?

Answers

Shee needs 448 ounces of lemonade.

448 ÷ 80 =5.8
⇒ There are 5.6 80-ounce of lemonade.

80 ounces of lemonade needed 8 lemons.
448 ounces of lemonade needed 8 x 5.6 = 44.8 lemons.

Tanisha has 38 lemons. 
She does not have enough lemons.
She needs 44.8 - 38 = 7 more lemons.

Answer: Tanisha needs more lemons. She needs 7 more.

Answer: 7 more lemons

Step-by-step explanation:

Since she needs 448 ounces of lemonade you have to divide which is 5.6 . As a result there are 5.6 80 ounces of lemonade. 80 ounces needs 8 lemons.  448 ounces of lemonade are needed 8 x 5.6 = 44.8 lemons.  Tanisha only has 38 lemons, which isn't enough. 44.8 - 38 =  is about 7 more lemons.

I really need help

What is the equation of a circle with its center at(10,−4) and a radius of 4?

(x−10)2+(y+4)2=4

(x+10)2+(y−4)2=16

(x−10)2+(y+4)2=16

(x+10)2+(y−4)2=2

(x−10)2+(y+4)2=2

(x−10)2+(y+4)2=8

(x+10)2+(y−4)2=8

(x+10)2+(y−4)2=4

Answers

The answer should be
(x-10)²+(y+4)²=16


The equation of any circle is
(x – h)² + (y – k)² = r²

(h,k) is the center point and r is the radius

Which additional information is needed to solve this problem?



John wants to buy a new game for his computer. He can save $12 a week if he mows his neighbor's lawn and $10 a week if he babysits his nephew. How many weeks will it take John to save enough money to buy the computer game?


A.
total amount John can save in 1 week

B.
the cost of the game

C.
amount John earns per hour babysitting

Answers

Hi there!

The answer is B.
the cost of the game.

We need to know the cost of the game in order to find out how many weeks John has to save money. If we don't know this price, we'll never know whether John has saved enough money.

We can find out the total amount of money John can save in 1 week (so A. is not the answer). The amount of money John earns per hour doesn't matter to answer the question (so C. is wrong).

~ Hope this helps you!
the answer is B he won't know how much to save if he does not know the cost of the game

Four golf balls are packaged in a cylindrical container as shown below. The balls just touch the top, bottom, and sides of the cylinder. The diameter of each ball is 4cm.

What is the volume of the cylinder rounded to the nearest cubic centimeter?

What is the total volume of the four balls rounded to the nearest cubic centimeter?

What percent of the volume of the container is occupied by the four balls?

Answers

Hello,
Please, see the attached files.
Thanks. 

What is the slip of the line given by the equation y=-1/3 x

Answers

the slip?  I don't think it has any slip, but as far as the slope goes, well, the equation is in slope-intercept form, thus

[tex]\bf y=\stackrel{slope}{-\cfrac{1}{3}}x~~\stackrel{y-intercept}{+0}[/tex]

Calculate the total cost of the order: Veggiburger with cola and soup, sales tax 4%, tip 15.

Veggiburger: $3.25
Cola: $1.50
Soup: $2.25

A $8.33
B $7.28
C $7.00
D $5.50

Answers

Add the prices of the food together to get $7. Then you calculate the sales tax, which is 1.04 * $7 = $7.28. The tip is 15% I am assuming, and not 15, so it would be $7 * 0.15 = $1.05. Add $1.05 with $7.28 to get $8.33, so the answer is A.
Final answer:

The cost of the order, including the sales tax of 4%, comes out to be $7.28. However, the tip is unclear in the question. If it's 15%, the cost rises to $8.37, but none of the provided options match this result.

Explanation:

The first step is to calculate the total cost of the Veggiburger, cola, and soup by adding them together. So, $3.25 (Veggiburger) + $1.50 (cola) + $2.25 (soup) = $7.00. Next, apply the 4% sales tax on this amount which is $7.00 * 4/100 = $0.28. So the subtotal now is $7.28 ($7.00 + $0.28). Finally, the tip mentioned in the problem is not clear whether it is a percentage or a fixed amount. If it is a 15% tip, then calculate 15% of the subtotal, i.e $7.28 * 15/100 = $1.09 (Approx). Adding this to the subtotal we get $8.37 which is not an option in the given answers. If $15 is a fixed tip amount, the total cost would be substantially larger. Please ensure the tip amount is correct.

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Multiply: (2x2 − 5x)(4x2 − 12x + 10)

Answers


The answer is 60x^2 - 138x + 72

Hope this helps!

Answer:

[tex]8x^4-44x^3+80x^2-50x[/tex]

Step-by-step explanation:

The given expression is

[tex](2x^2-5x)(4x^2-12x+10)[/tex]

Using distributive property we get

[tex]2x^2(4x^2-12x+10)-5x(4x^2-12x+10)[/tex]

[tex]2x^2(4x^2)+2x^2(-12x)+2x^2(10)-5x(4x^2)-5x(-12x)-5x(10)[/tex]

On simplification we get

[tex]8x^4-24x^3+20x^2-20x^3+60x^2-50x[/tex]

On combine like terms.

[tex]8x^4+(-24x^3-20x^3)+(20x^2+60x^2)-50x[/tex]

[tex]8x^4-44x^3+80x^2-50x[/tex]

Therefore the product of two polynomials is [tex]8x^4-44x^3+80x^2-50x[/tex].

Tina can paint a room 1.5 times faster than Joey can. If they work together, they can paint a room in 6 hours. How long would it take the slower person working alone to paint the room?

Answers

So, the rate is 1 job / hours, so:
1/n + 1/1.5n = 1/6
We'll make the denominator 3n:
3/3n + 2/3n = 1/6
5/3n = 1/6
Cross multiply:
3n = 30
n = 10
It will take the slower person 10 hours to complete the room.

a triangle with a base of 6cm and a height of 8cm is similar to a triangle with base 21cm. What is the height of the second triangle

Answers

Make a proportion.

Do base over height; [tex] \frac{base}{height}[/tex].

[tex] \frac{6}{8} = \frac{21}{h} [/tex]
h is the height of the second triangle. Solve for h.

Cross multiply.
[tex] \frac{6}{8} = \frac{21}{h} [/tex] 
6h = 168
h = 28

The height of the second triangle is 28 cm.

During a family vacation, Ms. Walker drove 918 miles on 3 tanks of gasoline. Her daughter, Amani, wants to create an equation in the form em equals square tee, to represent the total number of miles, m, her mom can drive on t tanks of gasoline. What number should Amani put in the square to complete her equation?

Answers

To complete the equation Amani needs the rate of the miles driven per tank, this will be given by:
Rate=(miles)/(number of tanks)
thus the rate will be:
miles=918 mile
tanks=3 tanks
thus
rate=918/3=306 miles/tank

A license plate has 3 letters and 3 digits in that order. a witness to a hit-and-run accident saw the first 2 letters and the last digit. if the letters and digits can be repeated, how many license plates must be checked by the police to find the culprit?

Answers

26×10×10=2600

Hope this helped!

The police must check 2600 possible license plates, calculated by multiplying 26 possibilities for the third letter not seen by the witness with 100 possibilities for the two digits also not seen.

To determine how many license plates the police must check to find the culprit, we consider the information that the witness saw the first two letters and the last digit. Since letters can be repeated, there are 26 possibilities for each of the two letters the witness saw. For the last digit, which the witness also saw, there are 10 possibilities (0 through 9). The third letter and the other two digits, which the witness did not see, each have the following number of possibilities: 26 for the third letter, and 10 for each of the two remaining digits.

Calculating the number of possible combinations:

First two letters (seen by the witness): 26 * 26 = 676 possibilitiesLast digit (seen by the witness): 10 possibilitiesThird letter (not seen by the witness): 26 possibilitiesThe two remaining digits (not seen by the witness): 10 * 10 = 100 possibilities

Therefore, the total number of license plates the police must check is the product of the possibilities for the parts the witness did not see:

26 (third letter) * 100 (two remaining digits) = 2600 possible license plates.

Find the surface area of the cylinder in terms of π.

See picture

a) 1008π in.2

b) 522π in.2

c) 360π in.2

d) 396π in.2

Answers

[tex]\bf \textit{total surface area of a cylinder}\\\\ SA=2\pi r(h+r)~~ \begin{cases} r=radius\\ h=height\\ -----\\ r=9\\ h=20 \end{cases}\implies SA=2\pi (9)(20+9) \\\\\\ SA=18\pi (29)\implies SA=522\pi [/tex]

match the following situation with one of the linear systems. Lewis wants to acquire at most 12 packages of baseball cards. Some packages have 4 rookie cards and some have only 3. In all, there are at most 38 rookie cards.
A.

B.

C.

D.

Answers

The correct linear system for the student's question is D. x + 3y \<= 38, x + y \<= 12, which matches the conditions of Lewis's situation for acquiring baseball cards.

The student is looking to match a situation with a linear system. The situation is that Lewis wants at most 12 packages of baseball cards, some containing 4 rookie cards and others 3 rookie cards, with a total of 38 rookie cards at most.

To match the situation with the correct linear system, we must set up two inequalities: one for the number of packages and another for the number of rookie cards.

Let x represent the number of packages with 4 rookie cards and y represent the number of packages with 3 rookie cards.

The first condition is that Lewis can have at most 12 packages, which gives us the inequality x + y \<= 12. The second condition is that the total number of rookie cards is at most 38, which gives us the inequality 4x + 3y \<= 38.

Considering these conditions, the correct answer is: D. x + 3y \<= 38,  x + y \<= 12.

HEEEELLLPP!!!!!!!!!!!!!!!WILL GIVE THE BRAIN!!!!!POINTS!!!!!!!
plz

Answers

If you observe the graph, it has a minimum point at x = -2

It is the local minimum as it is the minimum point in the neighboring. The term local is used, as it is the lowest point within a short interval and not for the entire function. 

The interval which correctly shows the local minimum is [-3, -1]

So, the correct answer is option Third

Tom has been given 35 chores to complete today this morning he finished seven of them how many chores does he now have left to do

Answers

Simple equation: 35-7=28 chores left to do
He should only have 28 left to do.

Suppose that a small town has seven burger shops whose respective shares of the local hamburger market are (as percent- ages of all hamburgers sold): 23 percent, 22 percent, 18 percent, 12 percent, 11 percent, 8 percent, and 6 percent. what is the four-firm concentration ratio of the hamburger industry in this town

Answers

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