Expand the expression.
log(7x3y)

Answers

Answer 1

Answer:

log 7 + 3log x + log y

Step-by-step explanation:

log(7x³y) = log 7 + log x³ + log y = log 7 + 3log x + log y

Answer 2

Answer:Expand log4(x3)log4(x3) by moving 33 outside the logarithm.log4(7)+3log4(x)+log4(y)


Related Questions

How many 6-digit whole numbers have the digits 2, 0, 2, and 2 as a 4-digit consecutively ordered block with no other digits between them?

Answers

There are 1680 digits 2, 0, 2, and 2 as a 4-digit consecutively ordered block with no other digits between them

How to determine the selection

To determine the number of whole numbers, the following must be true

Case 1: If the sequence starts from the first digit

The first digit can be any of the three 2's (i.e. 3 digits)The second digit can only be 0The third digit can be any of the remaining 2's (i.e. 2 digits)The fourth digit can only be the last 2 (i.e. 1 digit)The fifth digit can be any of 0 - 9 (i.e. 10 digits)The sixth digit can be any of 0 - 9 (i.e. 10 digits)

So, we have:

[tex]Case\ 1 = 3 * 1 * 2 * 1 * 10 * 10[/tex]

[tex]Case\ 1 = 600[/tex]

Case 2: If the sequence starts from the second digit

The first digit can be any of 1 - 9 (i.e. 9 digits)The second digit can be any of the three 2's (i.e. 3 digits)The third digit can only be 0The fourth digit can be any of the remaining 2's (i.e. 2 digits)The fifth digit can only be the last 2 (i.e. 1 digit)The last digit can be any of 0 - 9 (i.e. 10 digits)

So, we have:

[tex]Case\ 2 = 9 * 3 * 1 * 2 * 1 * 10[/tex]

[tex]Case\ 2 = 540[/tex]

Case 2: If the sequence starts from the third digit

The first digit can be any of 1 - 9 (i.e. 9 digits)The second digit can be any of 0 - 9 (i.e. 10 digits)The third digit can be any of the three 2's (i.e. 3 digits)The fourth digit can only be 0The fifth digit can be any of the remaining 2's (i.e. 2 digits)The last digit can only be the last 2 (i.e. 1 digit)

So, we have:

[tex]Case\ 3 = 9 * 10 * 3 * 1 * 2 * 1[/tex]

[tex]Case\ 3 = 540[/tex]

The total number of whole numbers is:

[tex]Total = 600 + 540 + 540[/tex]

[tex]Total = 1680[/tex]

Hence, there are 1680 6-digit whole numbers that the digits

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One of the angles in an isosceles triangle is 74°.
What could the other two angles be?

Answers

Answer:
53

Explanation:
180 - 74 = 105
105 / 2 = 53

Consider the equation y = 3x - 1
Identify the slope and y-intercept and
sketch the graph.

Answers

Given :-

A equation y = 3x -1 .

To Do :-

To identify slope and y intercept and then sketch it's graph .

Solution :-

Given equation to us is ,

→ y = 3x -1

As we know that , the slope intercept form of the line is ,

→ y = mx + c

where m is the slope and c is the y intercept .On comparing both , we have ,

slope = 3 y intercept = -1 .

So the graph will cut the y axis at (0,-1) . And will have a slope of 3 .

When y coordinate is 0 ,

say the point is (x,0) .

So that ,

→ x - 0 / 0 -(-1) = 3

→ x/0+1 = 3

→ x/1 = 3

x = 3

Hence one other point is (3,0 ).

Now we may plot the graph using these two points (3,0) and (0,-1) .

For graph see attachment .

I hope this helps .

Marcia bought a 500 g packet of flour. She used some flour to bake a cake, and she used two thirds of the remaining flour to make some scones. She used 60 g more flour for the cake than for the scones. How much flour did Marcia use for the cake?​

Answers

Answer:

The answer should be 236g.

Step-by-step explanation:

If we take the amount of flour used for the cake as 'x,' the flour used to make the scones would be (500-x)×2/3 as 2/3 of the remaining is used for the scones.

We know that 60g more flour is used for the cake.

So,

x-60=(500-x)×2/3

Cross multiply, and brng the 3 to the other side.

3(x-60)=(500-x)2

3x-180=1000-2x

Bring the x-terms to one side and the numbers to one side.

3x+2x=1000+180

5x=1180

Divide both sides by 5 to find x(the amount of flour used to make the cake)

Therefore,

x=236g

Consider the equation y = 3x - 1
Identify the slope and y-intercept and
sketch the graph.

Answers

Answer:

The slope is 3/1

Y-intercept is at 0,1

Step-by-step explanation:

A boy band is performing a concert on the 10th of December and the stadium has 5000 square metres of space for the audience. The stadium is split such that 40% of the space is the mosh pit and 60% of the space is seated and each seat is 2 square metres in size. If 80% of the people assigned to a seat stand up during the performance, now many people are sitting down during the performance?
A 4,000
B 1,200
C. 1000
D. 300
E. 600​

Answers

Answer:

C

Step-by-step explanation:

Because 80% of 5,000=4,000 and if there is 5,000 then what is left?

1,000 because 4,000 to 5,000 is 1 more thousand

Also I need my tickets to the concert!

Please please please help

Answers

Answer: 2nd option

Step-by-step explanation:

A line going through the points (-3, -10) with a slope m = 1/4.

Answers

Step-by-step explanation:

(-3,5) and (x,y)

Slope = (y - 5)/[x - (-3)] = (y - 5)/(x + 3)

(y - 5)/(x + 3) = -1/4

y - 5 = -1/4(x + 3)

y - 5 = (-1/4)x - 3/4

y = (-1/4)x - 3/4 + 5

y = (-1/4)x + 17/4.

Sofia is going to drive from her house to City A without stopping. Let DD represent Sofia's distance from City A t hours after leaving her house. The table below has select values showing the linear relationship between t and D. Determine how long Sofia has been driving the moment she was 157.5 miles away from City A.

Answers

Answer:

3.5 Hours

Step-by-step explanation:

I do not know what measurement or timelapse you're looking for. But this should be the answer to it, no I don't have an explanation though.

The distance between the city and the house is 260 miles.

What is an equation?

A mathematical statement that has a "equal to" symbol between two expressions with equal values is called an equation. as in 3x + 5 = 15, for instance. There are different types of equations like linear, quadratic, cubic, etc.

t              d

1             195

2            130

2.5         97.5

The distance will be calculated by the equation of the line,

y = mx + c

m = ( 130 - 195 ) / ( 2 - 1 )

m = -65

y = -65x + c

195 = -65 + c

c = 260miles

Hence, the distance will be 260 miles.

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Use the diagram of parallelogram ABCD to find the length of each side.

Answers

Answer:

Side BC and AD are the same lengths so a=21

Side BC = 14

Side AB = 37

Side CD = 37

Step-by-step explanation:

Hope this helps!

please mark as brainliest =D

can someone help me with this

Answers

Step-by-step explanation:

1. cd and dg

2. angle 2

3. angle gde

4. angle cdh

5. cde is st line

6.cdf = cdh+hdf = 42+117= 159

7. angle fde = 90-73=17

The continental U.S. is about 200 miles wider than Australia.
What number should replace the question mark on the U.S. map?

Answers

Answer:

i think it is 300 miles,,,,.......

If the value of "y" varies directly with "x"
and y = -8 when x = 4.
Find "y" when x = -4.

Answers

Answer:

y=8

Step-by-step explanation:

Hope this helps!!

HELP QUICK!!!
complete the equation represents the relationship between C and A.

Answers

Answer:

a = 11c - 4

Step-by-step explanation:

7,18,29,40

constant difference = 11

now,

an = a+(n-1)d

or, an = 7+(n-1)11

or, an = 7 + 11n - 11

or, an = 11n - 4

A television is on sale for $75 off,
The price of the television with the sale is $300,
If you use the equation n - 75 = 300 to solve this problem, what does n represent?

Answers

The term n is the initial amount that the television is to be sold.

What is the meaning of n?

We are told that the television in this case is to be sold at a discount piece. The implication of this is that there is something that has to be removed from the price of the television as it is sold.

We are told that what they are to remove from the price of the television is about $75  and that when this is done, the price of the television would be about $300. Thus n is the original price of the television.

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The variable n represents the initial value of the television

How to interpret the variable n

From the question, we have the following parameters that can be used in our computation:

Amount off = $75

New price = $300

When represented as the equation, we have

n - 75 = 300

Add 75 to both sides of the equation

So, we have the following representation

n = 375

This means that the initial price of the television is $375

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Identify the sum of the angle measures in a decagon (a 10-sided polygon)
O 1800°
0 1440°
0 1620°
O 1260°

Answers

Answer:

1440°

Step-by-step explanation:

(n - 2)180° - (10 - 2)180° = 8(180°) = 1440°

Answer:

1440 degrees

Step-by-step explanation:

formula for calculating sum of angles in a polygon is (n-2) 180 where n is 10 that's 10-2 which is 8 and 8 * 180 which is 1440

There are about 208,000,000,000 different 8-letter passwords that can be formed using a 26-letter alphabet.

Express this number using scientific notation.

Answers

Answer:

2.08 × 10^11

Step-by-step explanation:

solve cos(2x)=1-sin(x)

Answers

Given:

[tex]cos(2x)=1-sin(x)[/tex]

Expanding using double angle formula,

[tex]1 - 2 \sin^{2} (x) = 1 - \sin(x) [/tex]

Rearranging into a single equation,

[tex]1 - 2 \sin^{2}(x) - 1 + \sin(x) = 0[/tex]

Combining like terms,

[tex] - 2 \sin^{2} (x) + \sin(x) = 0[/tex]

Now multiplying each term by -1,

[tex]2 \sin^{2} (x) - \sin(x) = 0[/tex]

Factor greatest common factors out,

[tex] \sin(x)(2 \sin(x) - 1) = 0[/tex]

Applying Zero property rule,

[tex] \sin(x) = 0 \: or \: 2 \sin(x) - 1 = 0[/tex]

{ For sin(x) = 0

• Solve the trignometric equation to find a particular solution,

[tex]x = 0 \: or \: x = π[/tex]

[tex] = > x = 2nπ \: or \: x = π + 2nπ[/tex]

• Find the union of the solution sets,

[tex]x = nπ[/tex]}

{ For 2 sin(x) - 1 = 0 ,

Rearrange unknown terms to the left side,

[tex]2 \sin(x) = 1[/tex]

Divide both sides of the equation by the coefficient of variable,

[tex] \sin(x) = \frac{1}{2} [/tex]

• Solve the trignometric equation to find a particular solution,

[tex]x = \frac{π}{6} \: or \: x = \frac{5π}{6} [/tex]

[tex] = > x = \frac{π}{6} + 2nπ \: or \: x = \frac{5π}{6} + 2nπ,n∈Z[/tex]

}

Now finding the union of both sets

[tex]x = nπ \: or \: x = \frac{π}{6} + 2nπ \: or \: x = \frac{5π}{6} + 2nπ,n∈Z[/tex]

Hence, the answer is [tex]x = nπ \: or \: x = \frac{π}{6} + 2nπ \: or \: x = \frac{5π}{6} + 2nπ,n∈Z[/tex]

Solve, solve , solve

Answers

Answer:

1.) 5 1/4

2.)1 1/2

Step-by-step explanation:

umm.....

Answer:

1)  5 2/8

2) 1 2/6

Step-by-step explanation:

1) 2 7/8 + 2 3/8

Write these fractions as improper fractions.

23/8 + 19/8

Add the fractions

42/8

Write the answer as a mixed number.

5 2/8

2) 3 1/4 -1 3/4

Write these fractions as improper fractions.

13/4 - 7/4

Subtract the fractions

6/4

Write these fractions as improper fractions.

1 2/6

Don't you dare keep scrolling. Help me out m8.

Answers

Answer:

option C gives, x = 8

Step-by-step explanation:

A.

[tex]\frac{5}{2}x+\frac{7}{2}=\frac{3}{4}x+14[/tex]

[tex]\frac{5}{2} x-\frac{3}{4} x = 14-3.5[/tex]

[tex]\frac{10}{4} x-\frac{3}{4} x = 10.5[/tex]

[tex]\frac{7}{4} x = 10.5[/tex]

[tex]x=\frac{10.5*4}{7}[/tex]

[tex]x = 6[/tex]

B.

[tex]\frac{5}{4}x-9=\frac{3}{2}x-12[/tex]

[tex]\frac{5}{4}x-\frac{3}{2}x=-12+9[/tex]

[tex]\frac{5-6}{4} x = -3[/tex]

[tex]-x = 4(-3)[/tex]

[tex]x =12[/tex]

C.

[tex]\frac{5}{4}x-2=\frac{3}{2}x-4[/tex]

[tex]\frac{5}{4}x-\frac{3}{2}x=-4+2[/tex]

[tex]\frac{5}{4}x-\frac{6}{4}x=-2[/tex]

[tex]-x = (-2)*4[/tex]

[tex]x=8[/tex]

D.

[tex]\frac{5}{2} x-7 = \frac{3}{4}x+14[/tex]

[tex]\frac{5}{2} x-\frac{3}{4}x = +14+7[/tex]

[tex]\frac{10}{4} x-\frac{3}{4}x = +21[/tex]

[tex]\frac{7}{4} x=21[/tex]

[tex]x= \frac{21*4}{7}[/tex]

[tex]x = 12[/tex]

What is the probability of hitting the centre if a dart is thrown four times

Answers

Answer:

Step-by-step explanation:

If it is on a regular dart board and the dart is thrown four times, the probability of hitting the centre would be slim (obviously) but to be more precise it would be 1/4 - if not none at all.

I know this isn't as specific but I hope it will help :)

plssss help!!!!!! #1​

Answers

Step-by-step explanation:

According to the diagram:

The base is 6 unitsThe height is 3 units

The area is:

A = bh = 6*3 = 18 units²

PLease hurry! i need it! And the testing thing is happening, so before 6 pm?

Answers

[tex]\begin{cases} -x+3y=9\\\\ y=\cfrac{2}{3}x \end{cases} \\\\[-0.35em] ~\dotfill\\\\ -x+3y=9\implies 3y=9+x\implies \underline{3y-9=x} \\\\[-0.35em] ~\dotfill\\\\ \stackrel{\textit{substituting ont the 2nd equation}}{y=\cfrac{2}{3}(\underline{3y-9})\implies 3y=2(3y-9)}\implies 3y=6y-18\implies 18+3y=6y \\\\\\ 18=3y\implies \cfrac{18}{3}=y\implies \boxed{6=y}[/tex]

What does is 9 times 9

Answers

Answer:

81

Step-by-step explanation:

The correct answer is 81

hope it helps :))

6) Write the equation, g(x), that is 9 units below f(x) = 3^X+ 2.

Answers

Answer:

g(x) = 3^x -7

Step-by-step explanation:

In an exponential function like this, the constant at the end of the function represents the vertical shift. This means that the original function is shifted 2 units up. So, 9 units lower than +2 is -7. Thus, the new function, g(x), is g(x)=3^x - 7.
We can prove that g(x) is 9 units lower through y-intercepts. The function f(x) has a y-intercept of 3 and g(x) is -6. Since -6 is 9 lower than 3, we know that there is a 9 unit difference between the functions.

The number of students taking classes at RSM Branch A is 1 4 more than the number of students taking classes at RSM Branch B. If Branch A has 1,650 students, how many students does Branch B have? Write an equation that shows the relationship between the number of students at the two branches, A and B.

Answers

The equation illustrates that the number of students that Branch B have will be 2100.

How to solve the equation

From the question, the number of students taking classes at RSM Branch A is 1.4 more than the number of students taking classes at RSM Branch B. If

Since Branch A has 1,650 students, the number of students that Branch B have will be:

= 1500(1.4)

= 2100

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Write a congruence statement for the given polygons

Answers

Answer:

b

Step-by-step explanation:

Solve the equation.

-5 - 2 3/7 =

Answers

Answer:

-52/7 or 7 3/7

Step-by-step explanation:

-5 is also -35/7

2 3/7 is also 17/7

-35/7-17/7 = -52/7

-52/7 = 7 3/7

Answer:

-7 3/7

Step-by-step explanation:

-5 -2 3/7

Factor out the negative sign

-(5 + 2 3/7)

Write as a sum

-(5 + 2 + 3/7)

Calculate

-(7 + 3/7)

Write as a mixed number

-7 3/7

Hope this helps :)

What are the first five terms of the recursive sequence?

Answers

Answer: Choice A

9, 30, 93, 282, 849

====================================================

Explanation:

The first term is 9 because of the notation [tex]a_1 = 9[/tex]

To get the second term, we use the recursive rule given to us which is

[tex]a_n = 3a_{n-1} + 3[/tex]

I recommend using parenthesis to separate things like this

[tex]a_n = 3(a_{n-1}) + 3[/tex]

If n = 2, then,

[tex]a_n = 3(a_{n-1}) + 3\\\\a_2 = 3(a_{2-1}) + 3\\\\a_2 = 3(a_{1}) + 3\\\\a_2 = 3(9) + 3\\\\a_2 = 27 + 3\\\\a_2 = 30[/tex]

The second term is 30.

You can use the same idea as above to find the third term, or you can use this slightly different approach

[tex]\text{third term} = 3*(\text{second term}) + 3\\\\\text{third term} = 3*(30) + 3\\\\\text{third term} = 90 + 3\\\\\text{third term} = 93[/tex]

To generate any new term, we first triple the previous term and then add on 3.

George decided to accept a 20% drop in his salary during 2020.By what percentage must George's salary increase to get back to where it was before the salary drop during 2020​

Answers

Answer:

25%

Step-by-step explanation:

Let George's salary = $50,000 per year

If his salary dropped by 20%, then his salary would be 80% of his previous salary (as 100% - 20% = 80%).

Convert 80% to a decimal: 80% = 80/100 = 0.8

Therefore, 80% of 50000 = 0.8 x 50000 = $40,000

We wish to increase his salary back to the original amount of $50,000.

The difference between the two salaries is : 50000 - 40000 = 10000

Therefore, we need to calculate the percentage that $10,000 is of $40,000.

⇒ (10000 / 40000) x 100 = 25%

So George's salary needs to increase by 25% to get back to where it was before the salary drop.

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