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
If ∠ G is supplementary to ∠ H and the measure of ∠ G is 65 ° what is the measure of ∠ H ?
Please help
Answers
180 - 65 = 115
So angle H = 115 degrees
Measure of ∠H = 115°
What are supplementary angles?Two angles are called supplementary when sum of their measures is 180 degrees.
Given,
∠G is supplementary to ∠H
∠G is 65 °
∠G + ∠H = 180°
65° + ∠H = 180°
∠H = 180° - 65°
∠H = 115°
Hence, 115° is measure of ∠H .
Learn more about supplementary angles here
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-(x-3)=-7 I need help with this equation
Answers
Answer:
x = 10
Step-by-step explanation:
Given
- (x - 3) = - 7 ( divide both sides by - 1 )
x - 3 = 7 ( add 3 to both sides )
x = 10
Of the numbers 5, 6, or 7, which is a solution of the inequality y + 4 < 10?
Answers
[tex] \begin{cases}5 \in y \\ 6 \in y \\ 7 \in y \end{cases}[/tex]
Solve the Inequality.[tex]y + 4 < 10 \\ y < 10 - 4 \\ y < 6[/tex]
Therefore, the value of y is lesser than 6. That meane it can't be y = 6 or greater. Hence, 5 is the solution to the Inequality.
Answery = 5 is the solution to the Inequality.
But if you want to solve for Inequality only then it is y < 6
Helping me would be very appreciated.
Answers
Answer:
B I used Desmos to graph it and this was the same as the picture
Step-by-step explanation:
A line is parallel to y = 4x + 1 and
intersects the point (-2,-5). What is the
equation of this parallel line?
y = [?]x + [
Answers
Answer:
y = 4x+3
Step-by-step explanation:
The equation in point slope form is expressed as y - y0 = m(x-x0)
m is the slope
(x0, y0) is the point on the line
If a line is parallel to y = 4x + 1, the slope of the line m = 4
Substitute m = 4 and the point (-2, -5) into the equation above;
y - (-5) = 4(x - (-2))
y+5 = 4(x+2)
y+5 = 4x+8
y = 4x+8-5
y = 4x + 3
Hence the equation of the line is y = 4x+3
pls help is it A. B. C. D.
Answers
Answer:
C
Step-by-step explanation:
Hope I was able to help!! :)
Calculate the value of (6.72 x 10^5) + (3.2 x 10^4)
Give your answer in standard form.
Answers
Answer:
7.04× 10^5
Step-by-step explanation:
6.72 x 10^5= 6.72 x 10^(4+1)= 6.72 x 10^1 ×10^4
= 67.2 x 10^4
(67.2 x 10^4)+ (3.2 x 10^4)
(67.2+3.2) × 10^4 = 70.4 × 10^4
7.04× 10^5
Answer:
7.04× 10^5 Step-by-step explanation:
please help me i will mark brilient
Answers
[tex] \red{20 \: \frac{1}{4} \div 9}[/tex]
[tex] = \frac{81}{4} \div 9[/tex]
[tex] = \frac{^{9}\cancel{81}}{4} \times \frac{1}{\cancel{9}^{1} } [/tex]
[tex] = \frac{9}{4} [/tex]
[tex] \blue{ = \boxed{2 \: \frac{1}{4} }}[/tex]
Answer:2 ¼ m is the length of each piece of the rope
=============================Hope it helps
=============================Pls help me!
It’s Aleks homework 5.3
Answers
Step 1. Y x 13= Y13
Step 2. 7 x 4= 28
Step 3. set it equal to each other: 28=Y13
Step 4. 28/13= 2.2
Y= 2.2 is your answer
Hiiioo can someone please help me please!
Answers
1-4 / 5-1 = -3/4
Answer:
B, -3/4
Step-by-step explanation:
Slope can be found by using rise over run. From point x the line drops three points making the rise -3, and it goes to the right four points making the run 4. That makes our answer -3/4.
For the 1,000-meter running event, Abby's mean time is 4.5 minutes with a standard deviation of 0.75 minutes. For the 800-meter event, Abby's mean time is 3.2 minutes with a standard deviation of 0.4 minutes. In the last track meet, Abby ran the 1,000-meter race in 4.1 minutes and the 800-meter race in 3 minutes. In which event did Abby have a better performance?
Answers
Answer:
He performed better in the 800 m race
Step-by-step explanation:
Obtain the standardized score for each event :
Zscore = (score - mean) / standard deviation
1000 meter :
Mean = 4.5 ; Standard deviation = 0.75 ; x = 4.1
Zscore = (4.1 - 4.5) / 0.75
Zscore = - 0.4 / 0.75 = - 0.5333
800 meter :
Mean = 3.2 ; Standard deviation = 0.4 ; x = 3
Zscore = (3 - 3.2) / 0.4
Zscore = - 0.2 / 0.4 = - 0.5
-0.5 > - 0.533
Hence, he performed better in the 800 m race
Answer:
Abby had a better performance in the 800-meter because this z-score was closer to the mean than the z-score for the 1,000-meter.
Step-by-step explanation:
did it on egde
Numbers 6 , 3 , (X – 4) are length of sides of an isosceles triangle , X =
Answers
PLEASE HELP ME IV'E BEEN TRYING TO GET HELP BUT NOBODY WILL HELP ME PLEASE HELP "A phone sells for $137.99. It is now on sale for 1/10 off the original price. Tom has a coupon for an extra 5% off the sale price. To the nearest dollar, how much less that the original price will Tom pay for the phone."
Answers
Answer:
$122.99
Step by Step explanation
help me........... .
Answers
Answer:
I do not see the question.
Step-by-step explanation:
If an investment's value can be modeled with A= 325 (1+.027/12)^12t
then which of the following describes the investment?
Answers
Answer:
Step-by-step explanation:
It's an investment that has a nominal interest rate of 2.7% compounded monthly
3. The investment has a nominal rate of 27% compounded 12 times per year
Given that,
The investment value should be [tex]A= 325 (1+.027\div 12)^12t[/tex].Based on the above information, the information is as follows:
The above formula represent that the investment should have the nomibal rate of 27% that compounded 12 times per year.
Learn more: brainly.com/question/17429689
What is the area or the figure below? THE FIRST TO ANSWER GETS MARKED AS BRAINLIEST
Answers
Answer:
168 in.²
Step-by-step explanation:
it is the correct answer
(n-2) x M when n=5 and m=9
Answers
Answer:
27
Step-by-step explanation:
n=5
5-2=3
3xm
M=9
3x9=27
2
Selecting a Colored Ball
An urn contains 3 red balls, 2 blue balls,
and 5 white balls. A ball is selected and
its
color noted. Then it is replaced. A
second ball is selected and its color
noted. Find the
probability of each of these.
Selecting 1 blue ball and then 1 white
ball
Answers
A study has shown that the daily amount of milk produced by a dairy cow is
normally distributed, with a mean of 6.2 gallons and a standard deviation of
0.7 gallons. On a given day, 95% of the cows will produce an amount of milk
within which of the following ranges?
A. 5.5 gallons to 6.9 gallons
B. 4.8 gallons to 7.6 gallons
O
C. 4.1 gallons to 8.3 gallons
O D. 3.4 gallons to 9.0 gallons
SUBMIT
Answers
The range of milk production that 95% of the cows will fall within is option B: 4.8 gallons to 7.6 gallons.
To find the range of daily milk production that 95% of the cows will fall within, we can use the empirical rule, which states that for a normal distribution:
About 68% of the observations fall within one standard deviation of the mean.
About 95% of the observations fall within two standard deviations of the mean.
About 99.7% of the observations fall within three standard deviations of the mean.
Since we are looking for the range of milk production that 95% of the cows will fall within, we need to find the range that is within two standard deviations of the mean. That range is:
Mean ± 2SD
= 6.2 ± 20.7
= 6.2 ± 1.4
= [4.8, 7.6]
To learn more about the standard deviation;
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HELP I don’t understand
Answers
Answer:
D. y <= -x+2
Step-by-step explanation:
I used desmos and put all four then determined which one matched
Picture below...........
Answers
Answer: The correct answer is B.
Step-by-step explanation:
Write in Slope Intercept form
Answers
Answer:
its the first choice
Step-by-step explanation:
Answer:
y= -3/5x +5
Step-by-step explanation:
Step one - find where the line is intercepting. In your case this is at positive 1.
Next step is to check the change of the slope - directio. The line goes up to the positive Y access and to the left of the negative X access.
That leads to a negative slope.
Respectavley the only posible answer on this question is
y= -3/5x +5
Good luck.
FB: sharp4math
: Susan bought a 6-month $1,400 certificate of deposit. At the end of 6 months, she
received $126 simple interest. What annual rate of interest did the certificate pay?
Answers
Helpppp me plzzzzzzzzzz
Answers
Answer:
it is correct
Step-by-step explanation:
trust ur gut
Answer:
you have to correct answer
Step-by-step explanation:
just convert the square roots and fractions to whole numbers and then put them from least to greatest
Which holiday showed greater variability in the
data?
Answers
Answer:
christmas
Step-by-step explanation:
PLEASE HELP! I NEED A WRITTEN RESPONSE. WILL GIVE BRAINLIEST
Answers
Answer:
The more they seem to change the more they stay the same.
Is this right? ( Algebra 1 )
Answers
Step-by-step explanation:
x
2
−
12
x
+
27
=
(
x
−
3
)
(
x
−
9
)
Explanation:
x
2
−
12
x
+
27
Find two numbers that when added equal
−
13
and when multiplied equal
27
. The numbers
−
3
and
−
9
meet the criteria. The two factors are
(
x
−
3
)
(
x
−
9
)
.
If 2 pounds of grapes cost 6 dollars. How many ponds does 1 dollar get?
Answers
Answer:
I have no idea I think 3 sorry of wrong
1. Bryan randomly selects 2 items from his closet. What is the probability that he selects 2 pairs
of pants?
Answers
find the missing length indicated
thank yall for helping!
Answers
The total side of the “top” line is 8 + 10 = 18. The total side of the “bottom” line is 45. This makes the ratio 18/45.
Now we are trying to find the “larger” bottom segment, let it be x. Because the lines are parallel, the ratio of the “larger” top and bottom segments is equal to the ratio of the whole top and bottom lines.
So 18/45 = 10/x
Reduce 2/5 = 10/x
Cross multiply 2x = 50
Solve x = 25