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
mr Goodwill [35]
3 years ago
14

Can anyone explain step by step how to get this answer? Will mark branliest!!

Mathematics
2 answers:
Y_Kistochka [10]3 years ago
4 0

Answer:

Step-by-step explanation:

28°

guajiro [1.7K]3 years ago
3 0

Answer:

Step-by-step explanation:

A = cos⁻¹((12.5² + 30.5² - 20.3²) / (2(12.5)(30.5)))

A = cos⁻¹((156.25 + 930.25 - 412.09) / (2(12.5)(30.5)))

A = cos⁻¹(674.41 / 762.5)

A = cos⁻¹0.88447213...

A = 27.8133685...

A = 27.8°

You might be interested in
The air pressure inside Jason’s bike tires decreases by about 6% each week. The original pressure was 45 pounds per square inch
Brrunno [24]
Compound percentage reduction can be calculated by multiplying the initial number by (1-x)^t where x is the percentage reduction (/100, i.e. 1% reduction is 0.01), and t is the number of times it has reduced.

So:
a) p=45(1-0.06)^t=45*0.94^t
Where t is the number of weeks.

We can then just substitute in to work out the final pressure:
b) p = 45*0.94^6 = 31psi
5 0
3 years ago
Please help with #12 im confused<br> that is the key but i dont get it
Svetllana [295]

Given Equation

\boxed{ \tt \: (8 \sqrt{3}  - 2 \sqrt{2} )(8 \sqrt{3}   + 2 \sqrt{2})}

Step by step expansion:

\dashrightarrow \sf \: (8 \sqrt{3}  - 2 \sqrt{2} )(8 \sqrt{3}   + 2 \sqrt{2})

\\  \\

\dashrightarrow \sf \: (8 \sqrt{3})^{2}  - (2 \sqrt{2}  {)}^{2}

Reason:

(a + b)(a - b) = a²- b²

\\  \\

\dashrightarrow \sf \: (8 {}^{2}  \times  { \sqrt{3} }^{2} )- (2 \sqrt{2}  {)}^{2}

\\  \\

\dashrightarrow \sf \: (64  \times 3 ) - (2 \sqrt{2}  {)}^{2}

\\  \\

\dashrightarrow \sf \: (64  \times 3 ) - (2 {}^{2} \times   \sqrt{2}  {}^{2}  {)}

\\  \\

\dashrightarrow \sf \: 192- 8

\\  \\

\dashrightarrow \sf \: 184

\\  \\

~BrainlyVIP ♡

4 0
2 years ago
Read 2 more answers
In a mathematics class, half of the students scored 87 on an achievement test.
Nimfa-mama [501]

The complete question is:

In a mathematics class, half of the students scored 87 on an achievement test. With the exception of a few students who scored 52, the remaining students scored 71. Which of the following statements is true about the distribution of scores?

A. The mean is less than the median.

B. The mean and the median is the same.

C. The mean is greater than the mode.

D. The mean is greater than the median.

Statistics exist in the analysis of collection, analysis, interpretation, and presentation of data or into discipline to collect and summarize the data.

Therefore, the correct answer is option A. The mean is less than the median.

<h3>What are statistics?</h3>

Statistics exist in the analysis of collection, analysis, interpretation, and presentation of data or into discipline to collect and summarize the data.

Half the students scored 87.

The next highest score exists at 71.

Then the median will be (71+ 87) / 2 = 79

A few students scored 52, so the mean exists a little lower than the mean of 71 and 87.

Therefore, the correct answer is option A. The mean is less than the median.

To learn more about statistics refer to:

brainly.com/question/10951564

#SPJ9

3 0
1 year ago
Please HELP !!!!!!!!!!!!!!! IT IS DUE TODAY :( The circle graph below shows the different ways students get home from Astro-park
Scrat [10]

Answer:

480

Step-by-step explanation:

1200 times 0.4 equals 480

3 0
3 years ago
Suppose that the amount of algae in a pond doubles every 4 hours. If the pond initially contains 90 pounds of algae, how much al
UNO [17]
After 12 hours the pound would have 720 pounds of algae.
4 0
3 years ago
Other questions:
  • Give a # that makes 10 - x &lt; 5 true.
    6·1 answer
  • Domain of the function g(x)=1-2x^2
    14·1 answer
  • A candy maker produces mints that have a label weight of 20.4 grams. Assume that the distribution of the weights of these mints
    15·1 answer
  • Find the distance between the points (-3, 11) and (5, 5).<br><br> 10<br><br> 2<br><br> 2
    5·2 answers
  • PLEASE ANSWER QUICKLY, ILL AWARD YOU BRAINLIEST!!
    15·2 answers
  • Factor the expression below. A. (x + 5)(x + 5) B. (x - 5)(x + 5) C. 5(x2 - x + 5) D. (x - 5)(x - 5)
    14·1 answer
  • A local club had a fundraiser to raise money for 15 different programs. They
    14·1 answer
  • PLEASE ANSWER ASASP!!!!!!!111
    9·2 answers
  • Joey has a box with 40 football and 120 baseball cards. Sylvia has a box with 75 football and 100 baseball cards. Joey randomly
    9·1 answer
  • A triangle has two sides measuring 8. 5 cm and 15 cm. What is the greatest whole number length possible for the third side? expl
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!