Answers
Answer:
[tex]\displaystyle \log_7\frac{1}{81}\approx -2.2[/tex]
Step-by-step explanation:
We want to find:
[tex]\displaystyle \log_7{\frac{1}{81}}[/tex]
First, using the quotient rule:
[tex]\displaystyle \log_b\frac{a}{c}=\log_b a-\log_b{c}[/tex]
We can rewrite our expression as:
[tex]=\log_7 1-\log_7 81[/tex]
The logarithm of 1 is always 0. Therefore:
[tex]=-\log_781[/tex]
We can rewrite this as:
[tex]=-\log_7 9\cdot 9[/tex]
Using the product rule:
[tex]\log_b ac=\log_ba+\log_bc[/tex]
This is equivalent to:
[tex]=-(\log_79+\log_79)[/tex]
Substitute:
[tex]=-(1.1+1.1)=-2.2[/tex]
Related Questions
what is a 2 3/8 divided by 1 and 3/4
Answers
Explanation:
2 3/8 = 19/8
1 3/4 = 7/4
19/8 divide 7/4
= 19/8 x 4/7
= 19/14
Work out
a) 4 1/3 × 6
b) 2 3/5 × 3 1/3
Answers
Answer:
1. 26
2. 8 2/3
Step-by-step explanation:
4 1/3 x 6 = 13/3 x 6 = 78/3 = 26
2 3/5 x 3 1/3 = 13/5 x 10/3 = 130/15 = 8 2/3
Answer:
41/3 x 6 = 82
2 3/5 x 3 1/3=86.7
Step-by-step explanation:
have to slove for x
Answers
Answer:
x<4
Step-by-step explanation:
Can someone please help me understand how to expand 8(3y-4). Please give a detailed explanation.
Answers
Answer:
24y - 32
Step-by-step explanation:
You take the 8 and multiply each term by in the parentheses by 8, so
8(3y - 4) becomes 8 * 3y - 8 * 4 = 24y - 32
Answer:
well, you can multiply them, to simplify the equation, but to expand, try adding or multiplying 2 multiples of 8, in the middle the 4 can change by adding 2+2 or 3+1. For 3y, you can do 3*y.
Step-by-step explanation:
need help ...........
Answers
Answer:
SAS
Step-by-step explanation:
Hope I helped!!
Solve expression completely.
4-3
O 1/64
O
-64
O 1/16
O
64
Answers
Answer:
1/ 64
Step-by-step explanation:
1 / 4³ = 1/ 64
hope it helps!
You have to work on Distributive property 14(5+4)
Answers
explanation: solved it
Georgia is able to save $58 a week
from her earnings for babysitting her
neighbor's daughter. How much money
is Georgia able to save in 3 months?
Answers
Answer:
She will get $696 from babysitting in 3 months.
Step-by-step explanation:
58x4 = 232. 232x3= $696.
Answer:
696
Step-by-step explanation:
Is the given value a solution to the equation? 4(n) - 3 = -2(n) + 9 n=2
Answers
Answer:
Yes!
The solution to the equation is n = 2
Step-by-step explanation:
Given the equation
[tex]4\left(n\right)-3=-2\left(n\right)+9[/tex]
remove the parentheses
[tex]4n-3=-2n+9[/tex]
Add 3 to both sides
[tex]4n-3+3=-2n+9+3[/tex]
Simplify
[tex]4n=-2n+12[/tex]
Add 2n to both sides
[tex]4n+2n=-2n+12+2n[/tex]
Simplify
[tex]6n=12[/tex]
Divide both sides by 6
[tex]\frac{6n}{6}=\frac{12}{6}[/tex]
Simplify
[tex]n=2[/tex]
Therefore, the value of n = 2.
Hence,
Yes!
The solution to the equation is n = 2
Simplify the expression:
(14 - 3a) + (5a+4)
show work if u can
Answers
Answer:
(2a + 18)
Step-by-step explanation:
Rearrange Terms
(14−3)+(5+4)
(−3+14)+(5+4)
Eliminate the brackets
(−3+14)+(5+4)
−3+14+5+4
Add the numbers
−3+14+5+4
−3+18+5
Combine like terms
−3+18+5
= 2+18
answer asap ty.!
Thanks
Answers
Answer:
x=0
Step-by-step explanation:
5-9+3x = -10+6
-4+3x = -4
+4 . +4 (Both sides)
3x = 0
/3 /3 . (divide both sides by 3)
x=0
i need help with my math problems
Answers
Answer:
Step-by-step explanation:
X Y X Y
0 3 0 5
1 7 1 8
2 11 2 11
3 15 3 14
4 19 4 17
Solve expression completely.
64°
O
1
O 64
O Unknown
Answers
Answer:
b
Step-by-step explanation:
Question 5 Which of these expressions is equivalent to z+z+z+z?
Answers
Answer:
well, there is no image but it could be..
4z,z+3z,2z+2z
Hue is arranging chairs. She can form 2 rows of a given length with 3 chairs left over, or 5 rows of that same length if she gets 15 more chairs. Complete the equation and solve it to find how many chairs are in that row length. In your equation, use the variable x to represent the number of chairs in each row.
Answers
Answer:
X=4
Step-by-step explanation:
2x+3=5x+15
2x-5x=15-3
-3x=12
-3x/-3 = 12/-3
X=4
Find the missing value pls help need an answer ASAP
Answers
Answer:
-7
Step-by-step explanation:
-7 + 5 = -2
Can u mark me brainly pleasee???
Answer:
-7
Step-by-step explanation:
give brainliest jayfeather friend me
Is it true that when you find 10% of a number, that you are finding 1/10 of that number or dividing (divvy) the number by 10. This is the same as moving the decimal place by one.
Answers
Answer:
Yes this is true
Step-by-step explanation:
when ur moving right of the decimal point it goes tenths hundredths and thousandths so yes this is true PLEASE MARK BRAINLIEST ;C
Find the GCF of 15 and 16
Answers
Answer:
The GCF of 15 and 16 is 1
Step-by-step explanation:
They don't have any other number they are divisible by other than 1
Answer: GCF = 1
Step-by-step explanation:
15=
- 3 x 5
- 1 x 15
16=
- 1 x 16
- 2 x 8
- 4 x 4
-2(7 – n) + 4
What is the answer to this any body know it??????????
Answers
Answer:
2n+10
Step-by-step explanation:
you just distribute the -2 and you get -14+2n+4 and then add and you'll get 2n+10
if you are solving for the variable n then you would want your equation like this 2n+10=0
next you would put the 10 on the other side of the equation and have 2n=-10
finally you would divide by 2 and get n=-5
solve the triangle. round decimal answers to the nearest 10th.
Answers
Answer:
Step-by-step explanation:
m∠A=132°
b≈25.5
c≈18.7
A shop has a sale.
All items are 40% off.
A pair of jeans now cost £24.
How much did they cost before the sale
Answers
A recipe calls for 1 1/2 cups of flour for 1 dozen of cookies. How much flour is needed for 32 cookies?
Answers
Explanation: 1 1/2 is = to 12 so 1/2 is equal to 4. 1 then is equal to 8 and you multiply by 4 to get 32.
The length of a rectangle is 3 inches less than three times its width. The perimeter of the rectangle is 34 inches. Find the dimensions of the rectangle
Answers
Given:
The length of a rectangle is 3 inches less than three times its width.
The perimeter of the rectangle is 34 inches.
To find:
The dimensions of the rectangle.
Solution:
Let x be the width of the rectangle. Then, the length of a rectangle is 3 inches less than three times its width.
Length of the rectangle = 3x-3
Now, perimeter of the rectangle is
[tex]Perimeter=2(Length + Width)[/tex]
[tex]Perimeter=2(3x-3+x)[/tex]
The perimeter of the rectangle is 34 inches.
[tex]34=2(4x-3)[/tex]
[tex]34=8x-6[/tex]
[tex]34+6=8x[/tex]
[tex]40=8x[/tex]
Divide both sides by 8.
[tex]\dfrac{40}{8}=x[/tex]
[tex]5=x[/tex]
The value of x is 5. So, width of the rectangle is 5 inches.
[tex]Length=3x-3[/tex]
[tex]Length=3(5)-3[/tex]
[tex]Length=15-3[/tex]
[tex]Length=12[/tex]
Therefore, the length of the rectangle is 12 inches and the width of the rectangle is 5 inches.
10 Which shows the factored form of x2 - 12x - 45?
А
(x + 3)(x – 15)
B
(x - 3)(x - 15)
c
(x + 3)(x + 15)
(x - 3)(x + 15)
Answers
Answer:
The answer is (x+3)(x-15)
which graph represents the solution for the following inequality
c < -2
Answers
Answer:
I am pretty confident that the answer is the last one
Step-by-step explanation:
I'm not really sure how to explain though lol.
Hope this helps!
What is f /4 − 24 = −28
Answers
Answer: i assume you're looking for F, if so F = -16
Step-by-step explanation:
you would start by adding +24 to each side of the equation, giving you f/4 = -4
then, you would multiply each side of the equation by 4, giving you f = -16
how do you graph x+ 4
Answers
Your soccer team has won 9 games out of 12 games. You lost 3 out of the 12 games. What is the relative frequency of winning a game? Leave your answer as a percent.
Group of answer choices
75%
25%
1.3%
90%
Answers
Answer:
75%
Step-by-step explanation:
9 ÷ 12 = 0.75
0.75 = 75%
Alexa is making a bracelet using beads. She uses 1 red bead for every 5 silver beads. If she uses a total of 20 silver beads, how many red beads does she use? Tingsug can you please answer this for me? pls
Answers
Answer:
4 red beads
Step-by-step explanation:
6−3+4x+1= in one solution
Answers
Answer:
4x + 4
Step-by-step explanation:
1. 6 - 3 = 3 + 1 = 4
2. You keep the 4x.
3. So 6−3+4x+1= 4x + 4.
