I know the answer already but can someone explain it please
2187= 3^x
Answer is x=7

Answers

Answer 1

Answer:

3^x = 2187 is equivalent to log 3 (2187) = x.  (the three is the small number that goes lower next to the g). Then, use a calculator to do log(2187) / log(3)

Step-by-step explanation:


Related Questions

Factor completely, then place the factors in the proper location on the grid.

128x2 +96xy + 18y2

Answers

Answer:

2(8x+3y)*squared*

-5(x + 1) s 30. What is a possible value of x?
help me pls

Answers

Answer:

the answer should be x= -7 hope this helps!

verify X + y equal to y + X when:x=-8/9and y=-3/5​

Answers

Given:

[tex]x=-\dfrac{8}{9},\ y=-\dfrac{3}{5}[/tex]

To verify:

[tex]x+y=y+x[/tex]

Solution:

We need to verify,

[tex]x+y=y+x[/tex]

Taking left hand side, we get

[tex]LHS=x+y[/tex]

After substituting the values, we get

[tex]LHS=-\dfrac{8}{9}+\left(-\dfrac{3}{5}\right)[/tex]

[tex]LHS=-\dfrac{8}{9}-\dfrac{3}{5}[/tex]

[tex]LHS=\dfrac{-40-27}{45}[/tex]

[tex]LHS=\dfrac{-67}{45}[/tex]

Now,

Taking right hand side, we get

[tex]RHS=y+x[/tex]

After substituting the values, we get

[tex]RHS=-\dfrac{3}{5}+\left(-\dfrac{8}{9}\right)[/tex]

[tex]RHS=-\dfrac{3}{5}-\dfrac{8}{9}[/tex]

[tex]RHS=\dfrac{-27-40}{45}[/tex]

[tex]RHS=\dfrac{-67}{45}[/tex]

Clearly,

[tex]LHS=RHS[/tex]

Hence verified.

16ef³÷8e²f=
24m²n³
_____=
2mn

2k³+k
_____=
4k



Answers

Answer:

Answer is below

Step-by-step explanation:

16ef³÷8e²f=[tex]\frac{2f^{2}}{e}[/tex]

[tex]\frac{24m^{2} n^{3} }{2mn} = 12m n^{2}[/tex]

[tex]\frac{2k^{3} +k}{4k} =\frac{1}{2} k^{2} +\frac{1}{4}[/tex]

What does the variable r represent in the equation 10r+4=8?
what does r represent in it?????
URGENTTTT

Answers

r =

I think “represent” is asking you to solve to a number.

10r + 4 = 8
Subtract 4 from both sides of the equation:
10r = 4
Divide both sides by 10:
r = 0.4

Check the math:

10(0.4) + 4 =
4 + 4 = 8

Determine x-intercepts and zeros of each function

Answers

Given:

The function is:

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

To find:

The x-intercepts and zeros of the given function.

Solution:

We have,

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

For x-intercepts, [tex]y=0[/tex].

[tex]-(2x-4)(x-2)=0[/tex]

[tex](2x-4)(x-2)=0[/tex]

Using zero product property, we get

[tex](2x-4)=0[/tex] and [tex](x-2)=0[/tex]

[tex]2x=4[/tex] and [tex]x=2[/tex]

[tex]x=\dfrac{4}{2}[/tex] and [tex]x=2[/tex]

[tex]x=2[/tex] and [tex]x=2[/tex]

The given function has two equal zeroes or x-intercept, i.e., [tex]x=2[/tex].

Therefore, the zeroes are 2 and 2.

Note: All options are incorrect.

Which function is best represented by this graph?
A y = 1/4 x + 8
B y = 1/4 x - 2
C y = 4x -2
D y = 4x + 8

⚠️Hurry⚠️

Answers

Answer:

B- y=[tex]\frac{1}{4}[/tex]x-2

Step-by-step explanation:

To look at the slope you can count over four and then up one and its at the next point.

Also, the place on the y-axis is at -2

So, b makes the most since :)

Hope this helps :) (if it does, brainliest??)

What is the value of the expression below when w=3?
10w2 +9w-2

Answers

Answer:

85 if the "2" in 10w(2) is being multiplied.

But if not, then

115 if the "2" in 10w2 is an exponent.

Answer:

85

Step-by-step explanation:

10(3)2 + 9(3)-2

(30)2 + (27)-2

60+25=85

If the probability of an event happening is 0.45.

​What is the probability of the event NOT happening?
​A0.55
B0.50
C0.65

Answers

A.) 0.55
This is because the probability has to com out to 1 (technically 100%) so, 1-0.45 is 0.55 (these could all be percentages if you multiply them by 100)

Last month you purchased 6 individual songs and 1 albums for a total of $21.99.



This month you spent a total of $44.97 on 4 individual songs and 3 albums.

How much does each song and album cost

Answers

Answer:

Song =$1.50 Album =$12.99

Step-by-step explanation:

Lets assume Individual songs = x

albums=y

6x + y = 21.99-------- y= 21.99- 6x

4x + 3y= 44.97

Replace y in the second equation

4x+ 3(21.99-6x) = 44.97

4x +65.97- 18x = 44.97

14x= 21

x = 1.50

y= 21.99- (6*1.50)

= 12.99

Which of the following pairs of lines whose equations are given are perpendicular?

R 2x + 3y = 10

3x + 2y = 5

G. 2x - 3y = 10

H. 3x - 2y = 10

21 - Jy=5

I 2x - 3y = 10

2x + 3y = 5

Answers

H and is the correct answers

the graph shows the height of a golf ball in meters when it is hit. the height is modeled by f(x)=-5x^2+50x, where x is time in seconds. How long is the ball in the air

Answers

Answer:

This may be wrong, but x = 10

Explanation:

-5^2 + 50x
-5x (x - 10)


-5x = 0
x = 0 (This answer doesn’t make sense)

x - 10 = 0
x = 10

determine the minimum or maximum value of the function f(x)= -2x^2+4x+4

Answers

Answer:

-2x^2+4x+4= -4x+ 4x+4= 4

so the answer is 4

done

Which x value are solution to both of the following inequality 128>x and x<82

Answers

Answer:

A is the answer they are all possible answers but the answer a is the best

Step-by-step explanation:

Answer:

All 3 of them

Step-by-step explanation:

A  B and C are correct

Penelope decides to reduce her math tutoring to half the amount of time she has been tutoring each month. After making this change, what will be her total amount of monthly income?

Answers

Answer: $300 per month (assumed)

Step-by-step explanation:

As figures are lacking in this question, I will use assumed figures and you can use it as a reference.

Assume Penelope had been tutoring for 60 hours a month and her hourly rate was $10 originally.

If she reduces this time to half, the amount of hours she begins to tutor is:

= 60 hours / 2

= 30 hours

At a rate of $10 an hour, her monthly income becomes:

= 10 * 30

= $300 per month

an inequality is written below

Answers

Answer:

x > 28

Step-by-step explanation:

[tex]\frac{x-4}{-3} <-8\\\\x-4>24\\x>24+4\\x>28[/tex]

Uhm I also need help with this

Answers

Answer:

D. Perpendicular

Step-by-step explanation:

First answer A. Answer A is not even correct. Parallel are two or more lines that NEVER cross

Answer B is also not correct. Line segments are a line of specific length. These are two LINES. You can tell by the arrows on the edge of each line.

Both C and D can be correct. But the answer would be D. Here is why

Intersecting lines are two or more lines that cross. Yes these lines are crossing by perpendicular lines also cross. The difference is, intersecting lines can cross at any angle. Perpendicular lines have to cross at 90 degrees making 4 right corners.

please help me i need this grade !

Answers

A . One solution

B . infinite solution

C . infinite solution

D . no solution

_________________________________

Thus the correct answer is option A .

Suppose that the population of deer in a state is 7,700 and is growing 3% cach year. Predict the population
after 5 years

Answers

Answer:

Future Value= 8,927

Step-by-step explanation:

Giving the following information:

Present Value (PV)= 7,700

Growth rate (g)= 3%

Number of periods (n)= 5 years

To calculate the future value (FV) of the population after 5 years, we need to use the following formula:

FV= PV*(1 + g)^n

FV= 7,700*(1.03^5)

FV= 8,927

An experiment consists of spinning a spinner. Use the results in the table to find the experimental probability of the spinner not landing on red.
Red = 8
Blue = 7
Green = 9
Yellow = 6

A. 3/5
B. 11/15
C. 2/5
D. 4/15

Answers

Answer:

Probability(Not red) = 11 / 15

Step-by-step explanation:

Given:

Outcomes;

Red = 8

Blue = 7

Green = 9

Yellow = 6

Find:

Probability(Not red)

Computation:

Probability(Not red) = 1 - Probability(red)

Probability(Not red) = 1 - [Number of red/ Total]

Probability(Not red) = 1 - [8/(8+7+9+6)]

Probability(Not red) = 1 - [8/30]

Probability(Not red) = 1 - [4/15]

By taking LCM

Probability(Not red) = (15 - 4) / 15

Probability(Not red) = 11 / 15

Juan's earnings vary directly with the number of hours he works. Suppose that he worked 10 hours yesterday and earned $160. How much will he earn today if he works 13 hours?

Answers

Answer: Juan’s earnings for today will be $208.

Explanation: Find the unit rate/how much he earns if he works 1 hour
160 divided by 10: 16
Which will mean: 16 dollars for working 1 hour.
Multiply 16 by 13 to find out how many he earns for working 13 hours
16 x 13 = 208
So Juan earns $208 if he works 13 hours
Goodluck! You can trust my answer
Mark me brainliest plsss

2. What is the name of the ray that is opposite RP?

Answers

Answer:

its pr

Step-by-step explanation:

because im smart

Which scatterplot shows a nonlinear association?

Answers

Answer:

d

Step-by-step explanation:

it's the only one that isn't a trend

Answer:

A.

Step-by-step explanation:

It has a curve in it and linear is just like a strait line.

(45 points)


(1) It takes 4 eggs for 5 waffles. How many more waffles can 6 eggs make?

(2) A 1-lb. mix will make 32 biscuits. How many ounces of mix are needed for 24 biscuits?

Answers

Answer:

1. 5/4=1.25 egg for each waffle and 6*1.25=7.5

7.5-5=2.5

Write an equation in slope-intercept form for the line that passes through the
given point and is parallel to the graph of the given equation.
(-1, -2), 3x - y = 5

Answers

Make slope intercept
3x - y = 5
3x = y + 5
y = 3x - 5
Parallel = same slope
Slope = 3
Y = 3x + b
Plug in the point
-2 = 3(-1) + b
-2 = -3 + b, b = 1

Solution: y = 3x + 1

Answer:

y = 3x + 1

Step-by-step explanation:

the slope of the line of the given equation can bé find in this way: -a/b, where a is the number that multiplies x and b is the number that multiplies y

m = -3/-1 = 3

two parallel lines have the same slope, so also the line that we are a searching has m=3

now we can use this formula

y-y1 = m(x-x1) where y1 and x1 indicate the coordinates of the given point

y-(-2) = 3 (x-(-1)

y+2 = 3x + 3

y = 3x + 3-2

y = 3x + 1

I need help with this please

Answers

Answer:

idek that looks like sum top tier math problem figure it out

Step-by-step explanation:

figure it out

please help ASAP will give brainleast to correct answer plus thank you!

Answers

Answer:

-31

Step-by-step explanation:

-15-9+(-7)

-15-9-7

-24-7

-31

Answer:

Is D

Step-by-step explanation:

Hope it helps you its -1

An Attorney charges a fixed fee on $250 for an initial meeting and $150 per hour for all hours worked after that. Write an equation in slope-intercept form

Answers

Answer:

y = 150x + 250

A car is on a Ferris wheel with a radius of 20 feet. How far does the car travel over an angle of 2π3 radians? The car travels the distance of feet.

Answers

Answer: 21 feet, I think the first guy was wrong

EHIE HELP PLS
thank you so much you helped a lot , this is last problem

Answers

Step-by-step explanation:

I think it's 8 down again.

And 7 down.

8•7 = 56

• = Multiplication

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