1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Anit [1.1K]
3 years ago
12

Write 1-2log7x as a single logarithm

Mathematics
1 answer:
slavikrds [6]3 years ago
4 0

Answer:

log_{7} \frac{7}{x^{2} }

Step-by-step explanation:

We need to write 1 - 2log_{7}x as a single logarithm.

We know that

log_{7}7 = 1

Therefore we have:

log_{7}7 - 2log_{7}x

→ log_{7}7 - log_{7}x^{2}

→ log_{7} \frac{7}{x^{2} }

The solution is: log_{7} \frac{7}{x^{2} }

You might be interested in
A line with a slope of 2 passes through (3,9). Which choice is an equation of this line?
Veronika [31]

Answer:

The answer to your question is number 3.

Step-by-step explanation:

Data

slope = m = 2

Point = (3, 9)

Process

1.- Write the equation of the line in the form point-slope

               y - y1 = m(x - x1)

2.- Identify the values of x1 and y1

        x1 = 3   y1 = 9

3.- Substitution

               y - 9 = 2(x - 3)

4.- Simplify

              y - 9 = 2x - 6

              y = 2x - 6 + 9

5.- Result

              y = 2x + 3       slope y-intercept form

6 0
3 years ago
ASAPPP!!!! HELP I WILL GIVE 100POINTS AND BRAINLIST Question 9 (Essay Worth 10 points)
Luda [366]

Answer:

Part A)

The <em>x-</em>intercepts are (-1/4, 0) and (4, 0).

Part B)

The vertex is a maximum because the leading coefficient is negative.

The vertex is (1.875, 72.25).

Part C)

We can plot the zeros and the vertex, and connect them with a curve.

Step-by-step explanation:

The function given is:

f(x)=-16x^2+60x+16

Part A)

To find the <em>x-</em>intercepts of the function, set the function equal to 0 and solve for <em>x: </em>

<em />0=-16x^2+60x+16<em />

We can divide both sides by negative four:

0=4x^2-15x-4

Factor:

0=(4x+1)(x-4)

Zero Product Property:

x-4=0\text{ or } 4x+1=0

Solve for each case:

\displaystyle x=-\frac{1}{4}\text{ or }x=4

Hence, our zeros are:

\displaystyle \left(-\frac{1}{4}, 0\right)\text{ and } \left(4, 0\right)

Part B)

Note that the leading coefficient of our function is negative.

So, our function will be concave down.

Hence, our vertex will be the maximum.

The vertex is given by:

\displaystyle \left(-\frac{b}{2a}, f\left(-\frac{b}{2a}\right)\right)

In this case, <em>a </em>= -16, <em>b</em> = 60, and <em>c</em> = 16.

Find the <em>x-</em>coordinate of the vertex:

\displaystyle x=-\frac{(60)}{2(-16)}=\frac{15}{8}=1.875

Substitute this back into the function to find the <em>y-</em>coordinate:

f(1.875)=-16(1.875)^2+60(1.875)+16=72.25

Hence, our vertex is:

(1.875, 72.25)

Part C)

Since we already determined the zeros and the vertex, we can plot the two zeros and the vertex and draw a curve between the three points.

The graph is shown below. Again, to do this by hand, simply plot the three points and connect them with a parabola. If necessary, we can also find the <em>y-</em>intercept.

7 0
3 years ago
Correct answer gets brainliest what is 17/12 + 11/12
Diano4ka-milaya [45]

Answer:

\frac{28}{12} = \frac{7}{3} (they're the same)

Step-by-step explanation:

  1. \frac{17}{12} + \frac{11}{12} = \frac{28}{12}
3 0
3 years ago
Yasmine bought 4 bracelet. Each bracelet cost $ 3
Morgarella [4.7K]
She spent a total of $12
5 0
3 years ago
Solve each of the following equations for the given variable using proper algebraic notation. Show ALL work for full marks.
icang [17]

Answer:

3x=42

Divide 3x to both sides

14=x

56=8x

Divide 8 to both sides

7=6

6x+4=40

subtract 4 to both sides

6x=36

divide 6 to both sides

x=6

58=4x-6

add 6 to both sides

64=4x

divide 4 to both sides

16=x

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • An adult blue whale can eat 4.0 x 10 square root 7 krill in a day, At that rate, how many krill ca an adult blue whale eat in 3.
    13·1 answer
  • Kevin just bought a refrigerator for 469. He paid 140.60 in a down payment and will pay the rest in equal installments. How much
    9·1 answer
  • One highlighter has a mass of 11 grams. Another highlighter has a mass of 10.800 milligrams. Which highlighter has the greatest
    11·1 answer
  • HELP ME PLEASEE
    10·1 answer
  • Michael practiced his harmonica 3 times as long as Timothy did. Michael practiced for 126 minutes. Write an equation that repres
    8·2 answers
  • What is the probability of selecting the letters that spell “FABULOUS” from a hat that contains all the letters of the alphabet,
    15·1 answer
  • What is the area of a triangle<br> with the base of 20 inches and a<br> height of 6 inches?
    8·2 answers
  • Which of the following graphs is not a function?
    5·1 answer
  • Complete the sentences to compare the functions.
    12·1 answer
  • Find the slope of the line.<br><br> PLS HELP I AM SO BEHIND
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!