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
seropon [69]
3 years ago
13

Find the value of given expression

B2%7D%20%7D%20" id="TexFormula1" title=" \sqrt{25 \times 5 - 2 {}^{2} } " alt=" \sqrt{25 \times 5 - 2 {}^{2} } " align="absmiddle" class="latex-formula">
​
Mathematics
1 answer:
Alexxandr [17]3 years ago
7 0
It’s 11
25•5 is 125.
2 to the power of 2 is 4.
so 125-4 is 121.
the square root of 121 is 11
You might be interested in
8^(2x-1)=4^(3x+4)<br> PLEASE HELP ME
icang [17]

Answer: x=1.6

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Which is greater 3.65x10-8 or 3.65x10-7
Mice21 [21]

Answer:

the second one is your answer

Step-by-step explanation:

hope this helped mark me brainlest pls and thank you

3 0
2 years ago
Read 2 more answers
The distribution of resistance for resistors of a certain type is known to be normal, with 10% of all resistors having a resista
baherus [9]

Answer:

The mean is 9.65 ohms and the standard deviation is 0.2742 ohms.

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

10% of all resistors having a resistance exceeding 10.634 ohms

This means that when X = 10.634, Z has a pvalue of 1-0.1 = 0.9. So when X = 10.634, Z = 1.28.

Z = \frac{X - \mu}{\sigma}

1.28 = \frac{10.634 - \mu}{\sigma}

10.634 - \mu = 1.28\sigma

\mu = 10.634 - 1.28\sigma

5% having a resistance smaller than 9.7565 ohms.

This means that when X = 9.7565, Z has a pvalue of 0.05. So when X = 9.7565, Z = -1.96.

Z = \frac{X - \mu}{\sigma}

-1.96 = \frac{9.7565 - \mu}{\sigma}

9.7565 - \mu = -1.96\sigma

\mu = 9.7565 + 1.96\sigma

We also have that:

\mu = 10.634 - 1.28\sigma

So

10.634 - 1.28\sigma = 9.7565 + 1.96\sigma

1.96\sigma + 1.28\sigma = 10.645 - 9.7565

3.24\sigma = 0.8885

\sigma = \frac{0.8885}{3.24}

\sigma = 0.2742

The mean is

\mu = 10.634 - 1.28\sigma = 10 - 1.28*0.2742 = 9.65

The mean is 9.65 ohms and the standard deviation is 0.2742 ohms.

8 0
3 years ago
Here is the histogram of a data distribution. All class widths are 1.
stich3 [128]

The median of the data is 5 if the all class widths are 1, option (C) is correct.

<h3>What is the median?</h3>

A median is a middle number in a series of numbers that have been arranged to lift, and it might be more informative of the set of data than the average. When there are extremes in the sequences that might affect the average of the numbers, the median is sometimes employed instead of the mean.

In the histogram, 15 data values are given:

1, 2, 2, 3, 3, 3, 4, 5, 6, 6, 7, 7, 7, 8, 9

The mid-value is 5 which is on the 8th place

Thus, the median of the data is 5 if the all class widths are 1, option (C) is correct.

Learn more about the median here:

brainly.com/question/21396105

#SPJ1

8 0
2 years ago
Which table represents a linear function?
natita [175]

Answer:

the one in bottom right

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • Write two in to compare -17 and -22
    15·1 answer
  • Elijah drives 9 miles to his friend's house in 1 over 6 hour. How fast does
    10·1 answer
  • 5,627,893,302 to nearest ten million
    5·2 answers
  • Someone please help! Thxx
    12·1 answer
  • Which expressions show the expanded form for 200.06?
    6·1 answer
  • Heidi
    8·1 answer
  • Find the missing side of the right triangle. Write the value only.
    14·1 answer
  • Solve by elimination method 
    11·1 answer
  • HELP I FARTED AND I DIDNT LIKE IT IT FEEL SQWISHY WAT DO I DO
    6·2 answers
  • Help me solve the following 5(2x+7)=
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!