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
xxMikexx [17]
3 years ago
10

Help me idk what to do can someone help me please I'm begging here

Mathematics
1 answer:
Alborosie3 years ago
7 0
Assuming pi is 3 (as stated on the paper) the area of the circle would be 75. The area of a circle is pi * r^2, and since in this case pi is rounded to 3, and the radius is 5, it would be 3*(5^2) = 3*25 = 75.
The area of the square would be 144. Area of a square is side * side, which in this case is 12 * 12, which equals 144.
Then subtract the area of the circle from the square to get the final answer.
144 - 75 = 69
The final answer is 69 cm^2
You might be interested in
A cubic inch of water weighs 0.036 pound. Which of the following rational numbers is equal to the weight of a cubic inch of wate
aniked [119]
If I were you I will think the answer is B
3 0
3 years ago
2sinx / cos3x = tan3x - tanx -verify the identity-
scoundrel [369]

Answer:

cos3x+tan3x=0  

⟹cos3x=−tan3x

⟹cos3x=−sin3xcos3x

⟹cos23x=−sin3x

⟹1−sin23x=−sin3x

⟹sin23x−sin3x−1=0

This is a quadratic equation in sin3x.

sin3x=−(−1)±(−1)2−4×1×(−1)−−−−−−−−−−−−−−−−−√2×1

sin3x=1±5–√2

If x takes real values, the upper sign must be rejected.

sin3x=1−5–√2

⟹3x=nπ+(−1)nsin−11−5–√2

⟹x=13[nπ+(−1)nsin−11−5–√2]

Step-by-step explanation:

Hope this kind of helps

6 0
3 years ago
(−4x^4 +6x^2 +3) − (5x^2 - 3)
Alborosie

Answer:

-4x^{4} + x^{2} + 6

Step-by-step explanation:

(-4x^{4} + 6x^{2} + 3) - (5x^{2} - 3) = -4x^{4} + 6x^{2} + 3 - 5x^{2} + 3 = -4x^{4} + 6x^{2} - 5x^{2} + 3 + 3 =  -4x^{4} + x^{2} + 6

7 0
3 years ago
How do you solve a proof?
ziro4ka [17]
To solve a proof, you need to distinguish which is the hypothesis and which is the conclusion. The hypothesis is the starting point and the conclusion is the ending point. We go from hypothesis to conclusion. A conditional statement can be written as If A, then B. Where A is the hypothesis and B is the conclusion.

For example, take this theorem.

If two sides of a triangle<span> are congruent, then the angles opposite those sides are congruent.
</span>
We go from Two sides of a triangle are congruent to the angles opposite those sides are congruent.

The first statement's reason is pretty much always Given.
 
                                                         Statement | Reason
1. Two sides of a triangle are congruent         1. Given
....                                                                        After a bunch of steps
3. the angles opposite those sides are congruent. 3. Your postulate of definition of what reason you need to complete the last step.

Sorry if this is a little confusing.


6 0
3 years ago
Javier earns $7.50 per hour and works 20 hours per week. He wants to know how many weeks, w, he will need to work to save
disa [49]

Answer:

8 weeks

Step-by-step explanation:

So first you find out how much money he makes per week, by doing 7.5 x 20 you will find that. Now you need to find how many weeks it will take, find this by dividing 1200 by the amount he makes per week and you will end up with 8.

5 0
3 years ago
Read 2 more answers
Other questions:
  • HELP PLZZZ<br><br><br> Divide or multiply 14(-2)
    11·2 answers
  • Can someone pls help me out
    5·2 answers
  • Solve 8t + 4= 3(t-1)+7<br><br> pls sove step by step fast
    8·1 answer
  • Which number is not divisible by either of the numbers three and five?
    6·2 answers
  • Write an equation for a line that is perpendicular to the line 8x-4y=12 and passes throught the origin
    10·1 answer
  • Which statement correctly describes the decimal form of: 2/9
    14·1 answer
  • Find the slope of thelline that goes through the two points: 1)<br> (1 Point)<br> (2,5) and (-2,3)
    9·1 answer
  • Find the diameter and the circumference of the circle below r=8cm
    8·1 answer
  • HELP THIS IS DUE TOMORROW, ITS URGENT!!
    7·1 answer
  • ANYONE PLEASE HELP ME WITH MY MATH HOMEWORK I REALLY NEED THE ANSWER RIGHT NOW BECAUSE I HAVE TO PASS THIS TOMORROW I HOPE Y'ALL
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!