solve each logarithmic equation. Round your answer to two decimal places.
Teach me this one? I want to work on the next and will submit it once I have it done.
7 log9 (x + 8) = 7

Answers

Answer 1

Answer:

[tex]\sf \boxed{\bold{x=1}}[/tex]

Explanation:

[tex]\rightarrow \sf 7 log_9 (x + 8) = 7[/tex]

divide both sides by 7

[tex]\rightarrow \sf \dfrac{7\log _9\left(x+8\right)}{7}=\dfrac{7}{7}[/tex]

simplify the following

[tex]\sf \rightarrow \log _9\left(x+8\right)=1[/tex]

apply log rules                   [tex]\underline{The \ rule}: \ \bold{log_{b} (a)= c} \ \ \Longrightarrow \sf a = b^c[/tex]

[tex]\sf \rightarrow x+8 = 9^1[/tex]

simplify

[tex]\sf \rightarrow x+8=9[/tex]

subtract both sides by 8

[tex]\sf \rightarrow x=1[/tex]

Answer 2

[tex]\\ \rm\Rrightarrow 7log_9(x+8)=7[/tex]

[tex]\\ \rm\Rrightarrow log_9(x+8)=1[/tex]

[tex]\\ \rm\Rrightarrow x+8=9^1[/tex]

a^1=a

[tex]\\ \rm\Rrightarrow x+8=9[/tex]

[tex]\\ \rm\Rrightarrow x=9-8[/tex]

[tex]\\ \rm\Rrightarrow x=1[/tex]


Related Questions

Classify the questions as statistical or not statistical. How many bags do I own? How many cars does each person in my neighborhood own? How many hours do students in my class study every day? How many students in my class own 2 bags? How many hours did Ryan study last Saturday? How many houseplants does each house on my block have? Statistical Questions Not Statistical Questions​

Answers

Answer:

In order - Not statistical, statistical, statistical, statistical, statistical, statistical

Step-by-step explanation:

A statistical question is one which has answers based on the gathering of data (possibly multiple answers).

A non statistical question is one which requires no data gathering, and has only one answer.

Karly has 81 ounces of white paint.
She pours the paint into 7.2-ounce
containers. How many containers can
Karly fill with paint?

Answers

Karly will be able to fill 11 containers

A group of 25 employees want to go out for a group dinner.
18 employees want to go to Restaurant A.
7 employees want to go to Restaurant B.
Use this information to answer the questions below.
ws the proportion of employees who want to an to Restaurant

Answers

A is 18:25
B is 7:25

The area of a gymnasium is 956 yd2. The width of the gymnasium is 4 yd longer than its length. Find the length and width of the gymnasium (round to the nearest yard). Include a labeled diagram in your work for full credit?

Answers

Answer:

L = 29

w = 33

Step-by-step explanation:

  Area = w × L

           = (L + 4) × L

⇔ 956 = L² + 4L

⇔ 956 = (L + 2)² − 4

⇔ 956 + 4 = (L + 2)²

⇔ 960 = (L + 2)²

[tex]\Leftrightarrow L+2=\sqrt{960}[/tex]

[tex]\Leftrightarrow L+2=30.983866769659[/tex]

[tex]\Longrightarrow L+2 \approx 31[/tex]

[tex]\Longrightarrow L \approx 29[/tex]

[tex]\Longrightarrow w=L+4 \approx 29+4\approx33[/tex]

Kelso had two dogs. Each
dog eats one and a half cups
of dog food each day. There
are 75 cups in a bag of food.
How many days does one
bag of food last?

Answers

Answer:

Its gonna last 25 days

Step-by-step explanation:

75/3 = 25

3 -> 1.5*2

Question 1 (2 points)
Which box-and-whisker plot represents the data set?

10, 5, 8, 14, 21, 7, 13, 17, 17

Answers

The answer is the last one

Clarissa made a scale drawing of a rectangle. she used a scale factor of 3 to draw the new rectangle. how does the length of the new rectangle compare to the original? the length of the new rectangle is one-third the length of the original. the length of the new rectangle is startfraction 1 over 12 endfraction the length of the original. the length of the new rectangle is 3 times the length of the original. the length of the new rectangle is 12 times the length of the original.

Answers

Answer:

The length of the new rectangle will be 3 times the length of the original.

Step-by-step explanation:

Let the side of the rectangle be x and y.

Therefore after factoring it up by 3 the new sides will be [tex]3x,3y[/tex]

Thus, the length of the new rectangle will be 3 times the length of the original.

Answer:

c

Step-by-step explanation:

I really need help right now

Answers

Answer:

true

Step-by-step explanation:

bc my brain is right ( BTW i got my dad to check :>)

Samuel bought 4 rolls of tape to seal boxes. Each roll contains 32.9 meters of tape. He uses 1.2 meters of this tape to seal each box. What is the total number of boxes Samuel can seal with these 4 rolls of tape?

Answers

Answer:

109

Step-by-step explanation:

32.9 × 4 = 131.6

131.6 ÷ 1.2 = 109.6666666667

round down because you can seal 1 more box with .7 m of tape.

Answer:

The total number of boxes able to be sealed with this amount of tape is 109.6

Step-by-step explanation:

Sydney took a trip to a relatives house for Thanksgiving. She drove 65 miles per hour for 1. 5 miles and 55 miles per hour for 3. 5 hours. What was the total distance in miles that she traveled duribg this time?

Answers

The  total distance in miles that she traveled duribg this time is 17.21miles

Distance and speed

Speed is defined as the rate of change of distance. Mathematically speed is expressed as:

Speed = Distance/Time

For the second trip

Speed = 55mph
Time = 3.5hours

Distance = 55/3.5

Distance = 15.71 miles

Total distance travelled = 1.5 miles + 15.71miles

Total distance travelled  = 17.21miles

Hence the  total distance in miles that she traveled duribg this time is 17.21miles

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Pick a square that doesn’t belong with the others and explain why you made your choice

Answers

Answer:

8+7

Step-by-step explanation:

8 + 7 does not belong because it is the only one that does not add up to equal 14

please answer/fix these questions

Answers

Honestly I can’t remember the last time I had to deal with arcs in school, but the answer to the second one is 63 because all triangles add up to 180 degrees and 46+71= 117. 180-117=63

What is the value of h?

Answers

The angle on one side of a straight line is 180°, so 40° + 60° + h = 180°.
If you rearrange this you will get h = 180° - 60° - 40°, this will give you: h = 80°.
Hope this helps

Please help me
I will give brainly ond 5 stars and a thanks

Answers

Answer:

Step-by-step explanation:

The y values differ by 1. They are also 1 larger than the x value.

The equation is y = x + 1

Use x = 4 ans an  example

y = x +  1

x = 4

y = 4 + 1

y = 5

At least for this example the equation works. It will for all the others as well.

Find the component form of the resultant vector.
a= (-6, -5)
Unit vector in the opposite direction of a

Answers

Answer:

-6

Step-by-step explanation:

A vector is defined as having a magnitude of 15 m and a direction of East. Multiply this vector by the scalar value of –6.

what is x/ solve for x 3x + 22

Answers

Answer:

Step-by-step explanation:

3x + 22 = 0

      -22  -22

3x = -22

--   ---------

3       3

x = -22

       ---

        3

Given: ABCD is a parallelogram.


Prove: ∠A ≅ ∠C and ∠B ≅ ∠D


Parallelogram A B C D is shown.


By the definition of a ▱, AD∥BC and AB∥DC.


Using, AD as a transversal, ∠A and ∠

are same-side interior angles, so they are

. Using side

as a transversal, ∠B and ∠C are same-side interior angles, so they are supplementary. Using AB as a transversal, ∠A and ∠B are same-side interior angles, so they are supplementary.


Therefore, ∠A is congruent to ∠C because they are supplements of the same angle. Similarly, ∠B is congruent to ∠

answers: d, supplementary, bc, d

Answers

Answer:

E2020

Step-by-step explanation:

Answer:

d, supplementary, bc, addition

Step-by-step explanation:

Find the gradients of lines a and b

Answers

Answer:

Line A =   y = 8x – 6

Line B =  y = -4x + 8

Step-by-step explanation:

Complete the steps, which describe how to find the area of the shaded portion of the circle. a circle is shown. 2 raddi are drawn. a chord connects the points of the radii on the circle to each other. the space between the chord and the outline of the circle is shaded. 1. find the area of the sector by multiplying the area of the circle by the ratio of the _________________________ to 360. 2. subtract the area of the triangle from the area of the sector. length of the radius length of the diameter measure of the central angle circumference of the circle

Answers

The term segment refers to an area that is bounded by two radii and a chord.

What is a segment?

The term segment refers to an area that is bounded by two radii and a chord.

We have to obtain the area of the segment by;

the area of the sector is obtained as the product of the area of the circle and the ratio of the angle subtended by the sector to 360.Secondly, the area of the triangle formed as part of the segment is subtracted from from the area of the sector.

This is how to obtain the area of the segment.

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Answer:

the correct option is C

Step-by-step explanation:

What is the volume of the cone in terms of ​π ?

Answers

[tex]v = \frac{1}{3} \times \pi \times {r}^{2} \times height \\ [/tex]

[tex]v = \frac{1}{3} \times \pi \times {2}^{2} \times 6 \\ [/tex]

[tex]v = \frac{24}{3} \pi \\ [/tex]

[tex]v = 8\pi \: \: \: {in}^{3} [/tex]

Use the following number line to choose the correct statement.

P + Q > R
P > S - Q
S > R + Q

Answers

Answer:

S > R + Q

Step-by-step explanation:

Locations:

P = 0.30

Q = 1.10

R = 2.80

S = 4.40

Statements:

A. P + Q > R

B. P > S - Q

C. S > R + Q

Find the correct statement:

P + Q > R

0.30 + 1.10 > 2.80

1.40 > 2.80

This statement is incorrect

P > S - Q

0.30 > 4.40 - 1.10

0.30 > 3.30

This statement is incorrect

S > R + Q

4.40 > 2.80 + 1.10

4.40 > 3.90

This statement is correct

Therefore, the correct statement is S > R + Q

Hope this helps!

Ms. Lance is planning a birthday party. She decided that she
would spend no more than $I20 to buy a cake and balloons.
If the price of the cake is $45 and each balloon costs $15.
how many balloons can she buy?


Need the inequality and equality answer, and final answer

Answers

Answer:

The answer is 3

Step-by-step explanation:

You have to subtract 120-45 and that gets you to 75 Then divide 75 by 15 and that gives you 3. So the answer is 3

Answer:

15n + 45 ≤ 120

n ≤ 5

She can buy up to 5 balloons.

Step-by-step explanation:

Fixed amount: $45

Amount per balloon: $15

Let n = number of balloons

Total expense: maximum of $120, which means less than or wequal to $120

15n + 45 ≤ 120

15n ≤ 75

n ≤ 5

She can buy up to 5 balloons.

2x² - 4x - 6 = 0, what is the positive solution to the equation? ​

Answers

I believe it's x = 3.

Step-by-step explanation:

Common factorDivide both sides by the same factorUse the quadratic formulaSimplifySeparate the equationsSolve

Solution: x = 3

What is the yield on a corporate bond with a $1000 face value purchased at a discount price of $925, if it pays 6% fixed interest for the duration of the bond?

Answers

For a $1000 face value purchased at a discount price of $925, if it pays 6% fixed interest for the duration of the bond is the yield on a corporate bond mathematically given as

Yield = 6.5%

What is the yield on a corporate bond?

Generally, the equation for the interest paid is mathematically given as

Interest paid = value of bond x Interest rate

Interest paid = 1000 * 6%

Interest paid = 60

Therefore

Yield = Interest paid / Price paid

Yield = (60 / 925)x 100

Yield = 6.5%

In conclusion, the yield on a corporate bond is
Yield = 6.5%

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A graph is shown. Which of the following equations are represented by the graph?

Answers

Answer: A

Step-by-step explanation: I has a negative slope, which means that its line is shaped like a backslash. This graph is shaped like a forward slash, so it cannot be that one. III is a quadratic equation in factored form. The graph for a quadratic equation is shaped like a U or an upside down U, so it cannot be that one either. Using process of elimination, the only one that it can be is A, II and III.

I also used Desmos graphing calculator to double check and I was right. Here it is:

The cost of renting a moving truck is given by C = 40 + 0.99m , where C is the total cost in dollars and m is the number of miles driven. What does the 40 in the equation represent?

Answers

The 40 represents a base cost. The company charges $40 for just using their equipment.

The 40 in the equation C = 40 + 0.99m represents a fixed cost that is independent of the number of miles driven (m).

What is an Equation ?

An equation is a mathematical term, which indicates that the value of two algebraic expressions are equal. There are various parts of an equation which are, coefficients, variables, constants, terms, operators, expressions, and equal to sign.

For example, 3x+2y=0.

This fixed cost is a base fee that the rental company charges for the rental of the moving truck, regardless of how many miles the truck is driven.

In this equation, the 40 is a constant term that adds to the cost of the rental, and it represents the cost of the truck rental without taking into account the distance driven.

The 0.99m term represents the additional cost per mile driven, and it increases with the number of miles driven.

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Samantha is trying to pick out an outfit for the first day of school. She can choose from 2 pairs of pants, 2 t-shirts, and 9 pairs of shoes. How many different outfits does Samantha have to choose from?

Answers

Using the Fundamental Counting Theorem, it is found that Samantha has 36 different outfits to choose from.

What is the Fundamental Counting Theorem?

It is a theorem that states that if there are n things, each with [tex]n_1, n_2, \cdots, n_n[/tex] ways to be done, each thing independent of the other, the number of ways they can be done is:

[tex]N = n_1 \times n_2 \times \cdots \times n_n[/tex]

In this problem:

For the pants, there are 2 options, hence [tex]n_1 = 2[/tex].For the t-shirts, there are 2 outcomes, hence [tex]n_2 = 2[/tex].For the shoes, there are 9 outcomes, hence [tex]n_3 = 9[/tex].

Thus, the total number of outfits is given by:

N = 2 x 2 x 9 = 36.

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Grayson was given a large box of 42 chocolates for his birthday. If he eats exactly 2 chocolates each day, how many chocolates would Grayson have remaining 15 days after his birthday?

Answers

Answer:

12

Step-by-step explanation:

Let's write this in ratio form.

Days : Chocolates

1 : 2

15 : 30

So, he would eat 30 chocolates in 15 days. To find the remaining ones, we will subtract from the total of the chocolates given.

Chocolates = 42 - 30

= 12

Find the reference angle.
-230°

Answers

Answer:

pretty sure it would be like 90 or something, don't know if it's -90 or just 90 tho

Step-by-step explanation:

Answer:

50 degrees

Step-by-step explanation:

-230 is the same as   130      in quadrant II

reference angle   180 - 130 = 50 degrees

Which expressions are listed in the simplest form? Check all that apply.

Answers

we’re are the questions ?
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