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
Explain your thinking Your answer of " a square can also be classified as a kite"
Answers
Answer:
A square isn't always a kite but a kite can be classified as a square the same way a rectangle can be classified as a square I think.
Answer:
No, a square has four 90 degree angles and a kite does not.
Possibly a kite might sometimes be a square though.
Step-by-step explanation:
i need help its due in 1 hour (ALL MY POINTS)
Answers
Answer:
Area : 27.5
Perimeter : 20
Step-by-step explanation:
All sides of a regular pentagon have the same length
1 side = 4
4x5 = 20 = Perimeter
Pentagon area formula :
1/4(sqrt(5(5+2sqrt(5)))x)
Plug x in (side length)
27.53
round to nearest tenth
27.5
LAST CHANCE!
GIVING 100 POINTS AND BRAINLIEST TO WHOEVER ANSWERS THIS QUESTION
WHATS 5+9+9
Answers
Answer:
23
Step-by-step explanation:
Is 9x negative or positive?
-9x + 17x + -8x
Answers
Answer:
-9x is negative but the answer of the whole problem would be 0.
Can someone please answer this
Answers
Which rule explains why these triangles are congruent?
С
F
А
B
G
ASA
SSS
AAS
SAS
help urgently please
Answers
Answer:
Side Angle Side
Step-by-step explanation:
What is the answer to - (2 - 7x) if you simplify
Answers
Answer:
It would be
-2+7x
Step-by-step explanation:
write the equation of a line from the graph
Answers
Answer:
you take the graphs information and you write it in an equation.
Step-by-step explanation:
you take the graphs information and you write it in an equation.
Please, i need this done fast... 75 points.
Find WX, ST = 10x + 5, WX = 7x + 8, UV = 8x - 1
Answers
Answer:
WX=29
Step-by-step explanation:
ST=10x+5
WX=7x+8
UV=8x-1
since SW=UW, WX is centered between UV and ST
(10x+5)-(7x+8)=(7x+8)-(8x-1)
3x-3=-x+9
4x=-12
x=3
substitute
WX=7(3)+8=29
Answer:
29 lol i took this st00pid test and got it right :)
Step-by-step explanation:
Jason,Jennifer, Josh, and Jill went to a toy store. Jason spent $11.02. Jennifer spent $10.20. Josh spent 12.75. Jill spent 12.80. Which list shows the amounts spent in order from greatest to least
Answers
Answer:
(from greatest to least)
Jill (12.80) , Josh (12.75) , Jason ( 11.02) , Jennifer (10.20)
Step-by-step explanation:
Jason = 11.02
Jen = 10.20
Josh = 12.75
Jill = 12.80
Least = Jennifer
Greatest = Jill
Jill (12.80) , Josh (12.75) , Jason ( 11.02) , Jennifer (10.20)
Answer: Jill (12.80), Josh (12.75), Jason (11.02), and then Jennifer (10.20)
Step-by-step explanation: Amounts of money spent from greatest to least!
do manners matter ? opinion
Answers
Answer:
Of course!
Step-by-step explanation:
not having manners gives u a title and not that many people would want to be around you sadly.
Answer:
yes i think manners matter so you will be able to have them in the "real world" although i think parents go overboard about it i still think its important.
Step-by-step explanation:
PLEASE HELP
A company makes steel rods shaped like cylinders. Each rod has a diameter of 8 centimeters and a height of 20 centimeters. If the company used 28,134.4 cm3 of steel, how many rods did it make?
Answers
Answer:
1,172.3 cm³
Step-by-step explanation:
Find the volume of one rod, then divide the total volume of steel used by the volume of one rod. The volume of one rod is
V = (πd²/4)h
d = 4 cm
h = 20 cm
Plugin the numbers and get V in cm³, then divide the given total volume of 28,134.4 cm³ by V. If the result is not an integer, then round down.
Add
20 + 4 = 24
Then
28,134.4 ÷ 24 = 1172.26
Rounded to the nearest 0.1 or the Tenths Place = 1,172.3
Therefore, 1,172.3 rods will be made per hour.
Please help me! What does X equal?
Answers
Answer:
x = 75
Step-by-step explanation:
X = 180 - 78 - 27 = 75
Answer:
The answer is 75
Step-by-step explanation:
I got this answer because i added 78 and 27 then i subtracted it from 180 because that was the interior angle of a triangle and i got 75.
pls help
Solve the following system of equations for y using elimination:
6x – 12y = 24
-X – 6y = 4
A. -6
B. 0
C. -1
D. 4
Answers
Answer:
C
Step-by-step explanation:
5g - g - 10h + 15 - 3
Answers
5g - g - 10h + 15 - 3
4g - 10h + 15 - 3
4g - 10h + 12
Answer:
4g - 10h + 12
Step-by-step explanation:
5g - g - 10h + 15 - 3
4g - 10h + 12
Christopher bought a car for $16,500. He paid a 4.5% sales tax for this car. How much did Christopher pay for the car in all? How much was the sales tax for the car he bought?
Answers
Answer:
$17242.50 is the total amount he paid. The sales tax is $742.50
Step-by-step explanation:
what non-metal cannot form multiple bonds
Answers
Answer:A given nonmetal atom can form a single, double, or triple bond with another nonmetal. Which type of bond is formed between the atoms depends on their numbers of valence electrons.
Step-by-step explanation:
Answer:
A nonmetal atom can form either a single double or triple bond with another nonmetal. The type of bond that is formed between the atoms depends on their numbers of valence electrons.
Step-by-step explanation:
-4x^3 times 2y^-2 times 5y^5 times x^-8
Answers
Answer:
-64x X 4y X 3125y X x
-64X^2 X 1250Oy^2
Step-by-step explanation:
Answer:
-40y^3 / x^5
Step-by-step explanation:
Apply exponent rules
a^b * a^c = a^b+c
a^-b = 1/a^b
Please I need help :(
Answers
Answer:
it's D you multiply everything by 2
find the slope of the line that goes through the given points
1. (0,7) (0,-8)
2. (-7,9) (-18,9)
3. (-5,9)(7,3)
4. (-7,8)(8,-3)
find the slope of the line from the given equation
1. y=-3x-4
2. y=2x+1
3. y= 3/2x
4. y= 5/9x+10
PLEASEEE HELP ILL MARK BRAINLIST
Answers
Answer:
1st=2. (-7,9) (-18,9)
2nd=4. y= 5/9x+10
points belong to a vertical line. There is no slope.
2. (-7,9) (-18,9)
points belong to a constant, linear function.
Slope= 0
3. (-5,9)(7,3)
m = -6 / 12 = -1 / 2 = Slope -0.5
4. (-7,8)(8,-3)
m = -11 / 15 = Slope -0.73333
At a restaurant, the cost for one breakfast taco and one glass of milk is $2.10.
The cost for two tacos and three glasses of milk is $5.15.
How much would it cost for 3 tacos and 4 glasses of milk
Answers
Answer: $7.25
Step-by-step explanation:
Let T = taco cost
Let M = milk cost
T + M = 2.10
2T + 3M = 5.15
Multiply the first equation by (-2) and add it to the second equation
-2T - 2M = -4.20
2T + 3M = 5.15
M = 0.95
Plug this value for M in to the first equation
T + 0.95 = 2.10
T = 1.15
So a taco costs $1.15 and the milk costs $0.95
1.15 * 3 = 3.45
0.95 * 4 = 3.80
3.45 + 3.80 = 7.25
which equation is closest to the line of best fit in the graph below ?
Answers
Answer: B
Step-by-step explanation:
please hurry : AA'B'C'is a rotation of AABC 180° about the origin. What is the length of A'C'?
В,
A. 4 units
B. 3 units
O C. 6 units
D. 13 units
Answers
Answer:
B, 3 units
Step-by-step explanation:
Rotating the triangle doesn't change the length of its sides.
Answer:
B. 3
Step-by-step explanation:
Write an equation of the line passing through the points (-4,13) and (8,-2)
Answers
I can explain it if you want. Or if you want the standard form or the point-slope form, I’ll give it to you and explain of you want.
Find the slope of the line passing through the points (-7,7)and (2,7)
Answers
Answer:
57
Step-by-step explanation:
23ewrfgdxdf
Answer:
0
Step-by-step explanation:
[tex]\frac{y2 - y1}{x2 - x1}[/tex]
[tex]\frac{7 - 7}{2 - -7} = \frac{0}{9} = 0[/tex]
is honors math easy?
Answers
Answer:
NO
Step-by-step explanation:
Answer:
Actually it is. Think of it as a standard math. It is not at all hard. AP MAth is very hard because it's a ton of stuff and a whole bunch of maybe even college assignments. I would know because i was one in honors but now in AP. Trust me when i ay that i fool around in clas and still get an A.
Step-by-step explanation:
help!
vWhich of the following is 192 written as a mixed radical in simplest form:
Select one:
a. 45
b. 42
c. 83
d. 248
Answers
this is easy for some ppl but not me
Answers
Answer:
[tex] - 5 \frac{1}{3} \div 3 \frac{1}{10} \\ = \frac{ - 5 \times 3 + 1}{3} \div \frac{3 \times 10 + 1}{10} \\ = \frac{ - 16}{3} \times \frac{10}{31} \\ = \frac{ - 160}{93} [/tex]
Hope it will help :)
Answer:
-160/93
Step-by-step explanation:
reduce the expression, as long as this is possible, by canceling out common factors. Then you get -160/93
Almost 9 over 11 of the total electricity supplied to a town is used in farms and houses. Determine the decimal equivalent of 9 over 11.
Use words to explain if the decimal terminates or repeats.
Answers
Hope this helps. Brainliest?
Answer: .81
Step-by-step explanation: divide 9 and 11
Divya wants to make fruit smoothies for dessert. She purchases a container of rice milk for $3.49, two pounds of strawberries at $4.99 per pound, and six bananas at $0.75 each. How much did Divya spend on dessert? Show your work.
PLEASE HURRY