Note: Your equation seems a little unclear. But, I am assuming that your equation is:
[tex]e^x\:+\:e^{-1}=\:2[/tex]
Because my solution would still clear your concept about this topic, no matter what the question is.
Answer:
Please check the explanation.
Step-by-step explanation:
Given the equation
[tex]e^x\:+\:e^{-1}=\:2[/tex]
subtract [tex]e^{-1}[/tex] from both sides
[tex]e^x+e^{-1}-e^{-1}=2-e^{-1}[/tex]
[tex]e^x=2-\frac{1}{e}[/tex]
[tex]\ln \left(e^x\right)\:=\ln \:\left(2-\frac{1}{e}\right)[/tex]
[tex]\:x\cdot ln\left(e\right)=\ln \:\:\left(2-\frac{1}{e}\right)[/tex]
[tex]\:x\cdot 1=\ln \:\left(2-\frac{1}{e}\right)[/tex] ∵ [tex]\:\:\ln \left(e\right)=1[/tex]
[tex]x=\ln \:\left(2-\frac{1}{e}\right)[/tex]
[tex]x=0.5[/tex]
Plz I need this ASAP
Answer:
12
Step-by-step explanation:
1/3( 4×3)+8
1/3(12)+8
4+8
12
Answer:
b
Step-by-step explanation:
i think of a number x double it add eleven i get 25
Answer:
x=7
Step-by-step explanation:
CAN SOMEONE CREATE A QUESTION THEN MARK ME BRAINLIEST PLS I WILL MARK YOU BRAINLIST ON THIS QUESTION TOO BUT MAKE YOUR QUESTION ALSO
Answer:
ok go answer one of my questions ill then give it to u
Answer:
ok i will it will thx to you too
Step-by-step explanation:
What are the respective coefficients when the equation is balanced with the smallest whole number integer values?
Answer: That would be 4,3,2
Step-by-step explanation: Hope this helps
3.4z+ 2.8z =
I need help now!!!
Answer:
6.2z
Step-by-step explanation:
its basically just 3.4 + 2.8 but you add a z.
Answer:
6.2z
Step-by-step explanation:
Basically adding 3.4 +2.8 getting 6.2 then adding z to the end of it
X^3 = 1000 for math please help
Answer:
x=10
Step-by-step explanation:
since there are 3 zeroes in 1,000
x is 10
because 10^3=1000
Answer:
10
Step-by-step explanation:
The image below shows the parts of the pair of similar triangles that we've solved for so far in the video. What is the length of side AB?
The teacher asked Jenny's class to solve the equation $5x - 6 = 4x + 9$. Jenny copied the coefficient of $x$ on the right-hand side incorrectly and wrote down a different equation. Jenny correctly determined that her equation had no solutions. What was the coefficient of $x$ on the right-hand side of Jenny's equation?
Answer:
15
Step-by-step explanation:
5x - 6 = 4x + 9
+6 + 6
5x = 4x + 15
-4x - 4x
x = 15
Help me please find which ones are the right triangles (10 points )
Answer:
i can't delete my answer but at first i thought it was just #7 but then i paid attention to the others and they all look like right triangles but idk fs sorry
Step-by-step explanation:
Find the time required for an investment of 5000 dollars to grow to 8300 dollars at an interest rate of 7.5
percent per year, compounded quarterly.
Your answer is t =
years.
You may enter the exact value or round to 2 decimal places.
Answer:
1.60 (rounded)
Step-by-step explanation:
I haven't done this in a while but you'd use the compound interest formula a=p(1+r)^n where a=8300 p=5000 r=0.075 and solve for n
Marvin rides his bike at an average speed of 13 miles per hour. How far can he bike in 8 hours?
Answer:
104 miles
Step-by-step explanation:
13 miles * 8 hours = 104 miles
Answer:
104 miles
Step-by-step explanation:
In Ms. Henrick's class, there are 10 boys and 12 girls. What is the ratio of boys to girls? Express your answer as a fraction in simplest form.
Answer:
5:6
Step-by-step explanation:
the ratio before would be 10/12 so you would have to divide both sides by 2 so you would get 5/6.Hope this helped
I have no idea what I'm doing
A research scientist wants to know how many times per hour a certain strand of bacteria reproduces. He wants to construct the 95% confidence interval with a maximum error of 0.09 reproductions per hour. Assuming that the mean is 6.6 reproductions and the variance is known to be 4.84, what is the minimum sample size required for the estimate? Round your answer up to the next integer.
Answer:
The minimum sample size is [tex]n = 2295 [/tex]
Step-by-step explanation:
From the question we are told that
The margin of error is [tex]E = 0.09[/tex]
The sample mean is [tex]\= x = 6.6[/tex]
The variance is [tex]\sigma^2 = 4.84[/tex]
Generally the standard deviation is mathematically represented as
[tex]\sigma = \sqrt{\sigma^2}[/tex]
=> [tex]\sigma = \sqrt{4.84 }[/tex]
=> [tex]\sigma = 2.2[/tex]
From the question we are told the confidence level is 95% , hence the level of significance is
[tex]\alpha = (100 - 95 ) \%[/tex]
=> [tex]\alpha = 0.05[/tex]
Generally from the normal distribution table the critical value of [tex]\frac{\alpha }{2}[/tex] is
[tex]Z_{\frac{\alpha }{2} } = 1.96[/tex]
Generally the sample size is mathematically represented as
[tex]n = [\frac{Z_{\frac{\alpha }{2} } * \sigma }{E} ] ^2[/tex]
=> [tex]n = [\frac{1.96 * 2.2 }{0.09} ] ^2[/tex]
=> [tex]n = 2295 [/tex]
Express the decimal: 0.60 as a fraction
Answer:
3/5
Step-by-step explanation:
Answer:
[tex] \frac{60}{100} [/tex]
or more simplified:
[tex] \frac{6}{10} [/tex]
or more-more simplified:
[tex] \frac{3}{5} [/tex]
What is the correlation coefficient r for the data set?
Enter your answer to the nearest hundredth in the box.
r=
x y
25 240
26 242
27 230
28 229
28 220
28 219
29 200
30 202
31 184
32 180
I think its -0.95 but im not sure. please explain
Answer:
c
Step-by-step explanation:
Given that lines P & R are parallel, find the values of x and y.
Answer: Y = 17 and X = 43
Step-by-step explanation:
p and r are parallel meaning both angles are the same.
So
3y = 51
divide them by 3
y = 17
Now we take 51 from 180 and we get 129
129 divided by 3x is
x = 43
Are AC and DF definitely parallel? How do you know?
Answer:
We know that,
Angle E = 123
Angle B = 57
We observe that,
Angle DEB and Angle E form a linear pair and are supplementary.
Angle DEB + Angle E = 180
Angle DEB = 180-123
=57
We know that if two lines are parallel, the corresponding angles are equal.
Conversely, if the corresponding angles are equal, then the two lines are parallel.
Here,
As Angle B and Angle DEB are corresponding angles are equal in measure (Angle B = Angle DEB = 57), we can say that Line AC and Line DF are parallel.
Step-by-step explanation:
ang B = 180 - 57 = 123°
Since the corresponding angles are equal
So AC and DF are parallel to each other.
Which is the better buy?
2-quart carton of pineapple juice for $2.00
7-cup carton of pineapple juice for $3.01
Answer:
7-cup carton of pineapple juice for $3.01
Step-by-step explanation:
2-quart carton of pineapple juice for $2.00
2.00 : 2 = 1.00
check your work: 1.00 x 2 = 2.00
so for the first offer you will be paying $1.00 per quart
7-cup carton of pineapple juice for $3.01
1 cups = 0.25 quarts
7 cups = 1.75 quarts
3.01 : 7 = 0.43
check your work: 0.43 x 7 = 3.01
for the second offer you will be paying $0.43 per quart of juice. 7-cup carton of pineapple juice for $3.01 is a better buy because you will be paying less than half of the price for each quart than the first offer.
hope this helps!
What is the lcm of 84,102 and 100
Step-by-step explanation:
[tex]\sf{ 2 |{\underline{84,102,100}}}[/tex]
[tex]\sf{ 2|{\underline{42,51,50}}}[/tex]
[tex]\sf {3|{\underline{21,17,25}}}[/tex]
[tex]\sf {5|{\underline{7,17,25}}}[/tex]
[tex]\sf {\:\:{7,17,5}}[/tex]
LCM=2×2×3×5×7×17=7120Find the least squares regression line for the data points. (Let x be the independent variable and y be the dependent variable.) (−1, 0), (1, −2), (3, −3)
Answer:
y = - 0.9167 - 0.75x
Step-by-step explanation:
Given the data:
(−1, 0), (1, −2), (3, −3)
X : - 1, 1, 3
Y : 0, - 2, - 3
The regression model is written in the form:
y = C + mx
Where ;
C = intercept ; m = slope / gradient
Using the regression model calculator on the data values given above :
Slope (m) = - 0.75
Intercept (c) = - 0.9167
Hence,
y = - 0.9167 - 0.75x
c
Answer gets the crown
What does an algorithm have to do with processing?
Algorithms are a series of steps
Algorithms have nothing to do with processing
Algorithms are the steps that would be converted into a program that a computer could use to process information, changing it from input to an output.
Algorithms are the steps that would be converted into a program that a computer could use to process information, changing it from output to input.
How do I find the lcm of a number .
Can you please explain to me
i really need help and fast
Answer:
D. 51, 53, 55, 58, 60
Step-by-step explanation:
Pardon the messiness!
/
Which statement is false?
A.
by SSS
B.
by SAS
C.
by SAS
D.
Answer:
sorry, i haven't understood your question!! how can i tell which statement is false.
a dragon can fly 80 miles in 2 hours. an alien can fly 58 miles in 4 hours.
how far can a dragon fly in 11 hour. and how far can the alien fly in 1 hour.
Answer:
an alien can fly 14.5 miles in 1 hour and a dragon can fly 440 miles in 11 hours
Step-by-step explanation:
PLz HELP I BEG I GIVE U BRAINLYEST
Answer:
I believe it is 19.8
Step-by-step explanation:
well if 9 is the number then I would do
9.9 +
9.9
______
I get 19.8
Tell me if I am wrong :)
Answer:
a.b+c.d=_
Cancellation of the c here requires that it appears in each additive term of the numerator and denominator: ca + cb cd. = c(a + b) cd. = a + b d but ca + b.
Step-by-step explanatin:
you just had to add both of them together and I showed you how, and what the answer is.
A recipe for whole grain bread calls for 1 oz of rye flour for every 3 oz of whole wheat flour How many ounces of each kind of flour should be used to make a loaf of
bread weighing 22 oz?
Given :
A recipe for whole grain bread calls for 1 oz of rye flour for every 3 oz of whole wheat flour.
To Find :
How many ounces of each kind of flour should be used to make a loaf of
bread weighing 22 oz.
Solution :
It is given that ratio of rye and whole wheat flour is 1 : 3.
Let, amount of rye flour is x and amount of whole wheat flour is 3x.
So, x + 3x = 22
4x = 22
x = 5.5 oz
3x = 16.5 oz
Therefore, amount of rye flour and whole wheat flour is 5.5 and 16.5 oz respectively.
Hence, this is the required solution.
Angle A measures 4x + 40 degrees and angle B measures x – 10
degrees. If angles A and B are complementary, what is the
measure of angle B?
Answer:
2°
Step-by-step explanation:
Since, angles A and B are complementary.
Therefore,
[tex] m\angle A + m\angle B = 90\degree \\\\
(4x +40)\degree + (x-10)\degree = 90\degree \\\\
(4x+x +40-10)\degree = 90\degree \\\\
(5x +30)\degree = 90\degree \\\\
5x + 30= 90\\\\
5x = 90 - 30\\\\
5x = 60\\\\
x = \frac{60}{5}\\\\
x = 12\\\\
m\angle B = (x-10)\degree \\\\
m\angle B = (112-10)\degree \\\\
m\angle B = 2\degree \\\\[/tex]
What is the measure of
Answer: w= 155
Step-by-step explanation: