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
Murljashka [212]
3 years ago
5

Select the correct answer. log(2x-100) = 3 What is the solution to this equation?

Mathematics
2 answers:
soldi70 [24.7K]3 years ago
6 0

Answer:

C. x = 550

Step-by-step explanation:

Vinil7 [7]3 years ago
3 0

Answer:

550

Step-by-step explanation:

Rewrite in exponential form:

10^3=2x-100

Solve for x:

1000= 2x-100

2x=1100

x=550

You might be interested in
.
Tamiku [17]
Using the Pythagorean theorem 

c^2 = a^2 +b^2
C^2 = 12^2 + 8^2
c^2 = 144 +64
c^2 = 208

c= sqrt(208)

c= 14.4 feet
8 0
3 years ago
Determine the slope (m) and y-intercept (b) of the line: Y = 1/2 X + 1
Sladkaya [172]

Answer:

i thik it is the last one

Step-by-step explanation:

3 0
3 years ago
Jennifer is taking a four question multiple choice test. Each question has four possible answers. If she completely guesses on a
Archy [21]
The answer to this question would be "0.047 or B". This is because that is almost half of the test, and there's a lot of factors that vary. Such as the weight of the test, what answers she chose, etc. But it is B.
4 0
3 years ago
B = 10 feet area = 35 feet 2 Find the height of the triangle.
Alexandra [31]

Answer:

Height is 7m

Step-by-step explanation:

B = 10 feet area = 35 feet 2 Find the height of the triangle.

Area of triangle = 1/2 b×h

35 = 1/2(10×h)

35 × 2 = 10h

70 = 10h

h = 70/10

h = 7m

8 0
3 years ago
An automobile manufacturer who wishes to advertise that one of its models achieves 30 mpg (miles per gallon) decides to carry ou
Katyanochek1 [597]

Answer:

t=\frac{29.35-30}{\frac{1.365}{\sqrt{6}}}=-1.17  

p_v =P(t_{(5)}  

If we compare the p value and the significance level given \alpha=0.05 we see that p_v>\alpha so we can conclude that we have enough evidence to FAIL to reject the null hypothesis.  

We can say that at 5% of significance the true mean is not significantly less than 30 so then the claim that true average fuel efficiency is (at least) 30 mpg makes sense

Step-by-step explanation:

Data given and notation  

The mean and sample deviation can be calculated from the following formulas:

\bar X =\frac{\sum_{i=1}^n x_i}{n}

s=\sqrt{\frac{\sum_{i=1}^n (x_i -\bar X)}{n-1}}

\bar X=29.35 represent the sample mean  

s=1.365 represent the sample standard deviation  

n=6 sample size  

\mu_o =30 represent the value that we want to test  

\alpha=0.05 represent the significance level for the hypothesis test.  

t would represent the statistic (variable of interest)  

p_v represent the p value for the test (variable of interest)  

State the null and alternative hypotheses.  

We need to conduct a hypothesis in order to check if the true mean is lower than 30 or no, the system of hypothesis are :  

Null hypothesis:\mu \geq 30  

Alternative hypothesis:\mu < 30  

Since we don't know the population deviation, is better apply a t test to compare the actual mean to the reference value, and the statistic is given by:  

t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}} (1)  

t-test: "Is used to compare group means. Is one of the most common tests and is used to determine if the mean is (higher, less or not equal) to an specified value".  

Calculate the statistic  

We can replace in formula (1) the info given like this:  

t=\frac{29.35-30}{\frac{1.365}{\sqrt{6}}}=-1.17  

P-value  

We need to calculate the degrees of freedom first given by:  

df=n-1=6-1=5  

Since is a one-side left tailed test the p value would given by:  

p_v =P(t_{(5)}  

Conclusion  

If we compare the p value and the significance level given \alpha=0.05 we see that p_v>\alpha so we can conclude that we have enough evidence to FAIL to reject the null hypothesis.  

We can say that at 5% of significance the true mean is not significantly less than 30 so then the claim that true average fuel efficiency is (at least) 30 mpg makes sense

5 0
3 years ago
Other questions:
  • How do you show the limit does not exist limx→4x−4x2−8x+16lim_(x-&gt;4)(x-4)/(x^2-8x+16) ?
    5·1 answer
  • Please help on this one?
    5·1 answer
  • Which equation is equivalent to the given equation? 7m+11=-4(2m+3)
    10·1 answer
  • Vanessa was baking cookies. Each batch of cookies made 3 dozen. If Vanessa uses 6 cups of flour total and each batch requires 1
    8·1 answer
  • Write 160,000,000 in exponential form
    8·2 answers
  • One number is 5 less than another. Their sum is 19. Find the numbers.
    7·2 answers
  • If y=mx+b, the y-intercept is given by the value of m True or False
    9·2 answers
  • Find the least common multiple for this number pair. 4, 24​
    5·1 answer
  • The perimeter of a rectangular painting is 304 centimeters. If the length of the painting is 95 centimeters, what is its width?
    14·2 answers
  • Patricia is in charge of the food and has a total budget of $125. She orders 30 sandwiches at $3 per sandwich. Patricia would li
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!