Are the following solutions correct ? Why or why not
Answer:
[tex]\theta = 0, \frac{\pi}{2}, \pi,...[/tex]
Step-by-step explanation:
[tex]sin\theta + cos \theta = 1 \\\\squaring both the sides\\\\sin^{2}\theta + cos^{2}\theta+2 sin\theta cos\theta = 1 \\\\2sin\theta cos\theta = 0 \\\\sin2\theta = 0\\\\2\theta = 0, \pi, 2 \pi,....\\\\\theta = 0, \frac{\pi}{2}, \pi,...[/tex]
This is the correct solution.
Jeff sells popcorn for $3 per bag. To make a profit each day, he needs to sell at least $120 worth of popcorn. He has sold $36 worth of popcorn today. Which inequality can be used to find the number of bags of popcorn, p, Jeff still needs to sell today to make a profit?
A- 3p - 36_>120
B- 3(p+36) _>120
C- 3p - 12_>120
D- 3p + 36 _> 120
PLEASE ANSWER QUICKLY! 10 POINTS!!!
Answer: he needs to sell 28 more bags to sell 120 dollars of popcorn
Step-by-step explanation: I need one more brainliest for the next rank I’d appreciate it
PLEASE HELP ME WITH THIS GEOMETRY PROBLEM!! SHOW WORK!!
Answer:
Solution given:
In right angled triangle
ABC.
with respect to <C=40°
opposite side=AB
adjacent=BC=DE=30ft
now
relationship between opposite side and adjacent
is given by tan angle
tan 40°=oppo/adjacent
tan40°=AB/30
AB=tan40*30
AB=25.2
Now
height of flagpole =AB+BE=25.2+5=30.2ft
option 4th is a required answer
The terminal side of O is in quadrant Il and sin 5/13 = . What is cos 0?
A. 5/12
B.12/13
C.-5/12
D-12/13
If the terminal side of θ is in quadrant || and sin θ = 5/13, then the value of cos θ = -12/13.
Given that,
Terminal side of θ is in quadrant ||.
Sin θ = 5/13
We have the trigonometric identity,
sin² θ + cos² θ = 1
Substituting the value of Sin θ = 5/13, we get,
(5/13)² + cos² θ = 1
cos² θ = 1 - (5/13)²
= 1 - 25/169
= 144/169
cos θ = √ (144/169)
= ± 12/13
We have the terminal side of θ is in second quadrant. In the second quadrant, all the trigonometric values except sin are negative.
So, cos θ = -12/13
Learn more about Cosine Value here :
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Question
Help me please
Answer:
CORRECT STATEMENTS:
ABDStep-by-step explanation:
Which of the following choices is the standard deviation of the sample shown
here?
18, 19, 20, 21, 22
A. 2
B. 12.5
C. 20
D. 2.5
E. square root of 2
Answer: E. square root of 2
We can write that in shorthand as sqrt(2)
sqrt(2) = 1.41421 approximately
======================================================
Explanation:
Step 1)
Add up the values to get 18+19+20+21+22 = 100
Divide by n = 5, since there are 5 items in the list. So 100/n = 100/5 = 20
The sample mean is xbar = 20
--------------
Step 2)
Subtract the mean from each data value
18 - xbar = 18 - 20 = -219 - xbar = 19 - 20 = -120 - xbar = 20 - 20 = 021 - xbar = 21 - 20 = 122 - xbar = 22 - 20 = 2The results we get are: -2, -1, 0, 1, 2
---------------
Step 3)
Square the results from the previous step
(-2)^2 = 4(-1)^2 = 1(0)^2 = 0(1)^2 = 1(2)^2 = 4The results here are: 4, 1, 0, 1, 4
---------------
Step 4)
Add up those squares from the previous step: 4+1+0+1+4 = 10
Now divide by n = 5 to get 10/n = 10/5 = 2
The result 2 represents the population variance. Applying the square root to the population variance leads to the population standard deviation. So we end up with the final answer of sqrt(2). The answer is choice E.
sqrt(2) = 1.41421 approximately
---------------
Note: if you want the sample standard deviation, then you divide by n-1 = 5-1 = 4, but the other steps are the same as before.
please show your work
Answer:
B) 40
Step-by-step explanation:
Angle X and the missing angle inside the triangle are equal as the are opposite angles.
Therefore,
180 - 65 - 75 = 40
Compare the ratios of the two pairs of sides that are opposite and adjacent to Show your work, am offering brainliest and 45 points ‼️‼️‼️
Answer:
Hope u got your answer
Step-by-step explanation:
U r brilliant
A movie theater has 1000 seats. There are 424 adults and 339 children sitting in seats. How many of the seats are empty
Answer:
237 seats are empty
Step-by-step explanation:
Answer:
there are 237 seats that are empty
Step-by-step explanation:
9 boys can paint a basketball court in 3 hours how long should 1 boy take working at the same rate
PLEASE HELP FAST!!! Estimate the line of best fit using two points on the line.
Answer:
D) y= -1/2x+9
Step-by-step explanation:
if u substitute y with 8 u will get 2
if u substitute y with 5 u will get 8
Answer:
D
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Calculate m using the slope formula
m = [tex]\frac{y_{2}=xy_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (2, 8) and (x₂, y₂ ) = (8, 5)
m = [tex]\frac{5-8}{8-2}[/tex] = [tex]\frac{-3}{6}[/tex] = - [tex]\frac{1}{2}[/tex]
The line crosses the y- axis at (0, 9) ⇒ c = 9
y = - [tex]\frac{1}{2}[/tex] x + 9 → D
reduce 286/858 to simplest terms
Help it is due today
Answer:
6. (0, 7)
7. (-3, -10)
8. (-3, 9)
9. (2, 0)
Step-by-step explanation:
Answer:
6. (0,7)
7.(-3,-10)
8. (-3,2)
9. (2,0)
A bag contains red and blue marbles, such that the probability of drawing a blue marble is 3/8. An experiment consists of drawing a marble, replacing it, and drawing another marble. The two draws are independent. A random variable assigns the number of blue marbles to each outcome. Complete the probability distribution table on your own paper. Answer the question in the text box below. / What is the probability of drawing exactly one blue marble? Write a simplified fraction.
Answer:
The probability of drawing exactly one blue marble is 15 over 32
Step-by-step explanation:
did test
Simplify the expression. Write your answer as a power.5^8
5^5
Answer:
5^13
Step-by-step explanation:
when multiplying numbers with the same base, you add the exponents
Answer:
5^13
Step-by-step explanation:
5^8 = 390625
5^5= 3125
Since you have to write you answer as a power you would do 5^8+5^5= 5^13
Which of the following points is a solution for this system of equations:
y = –2x – 11
y = x² – 2x – 36
A. (0,-36)
B. (-3,-5)
C. (0,-11)
D. (5,-21)
Answer:
D
Step-by-step explanation:
There you go mate, just writing this to be 20 words long so I can answer it
What is the sum of the interior angles in this shape?
Answer:
720° :)
Step-by-step explanation:
You can find the total interior angle for any shape using the following (n being the number of sides):
S = ( n - 2 ) × 180 °
S = (6-2) * 180
S = 720
Find the missing side of each triangle. Round your answers to the nearest tenth if necessary
Please explain a step by step
Answer:
2.8km
Step-by-step explanation:
a = sqrt(c^2-b^2)
a = sqrt(9.9^2 - 9.5^2)
a = sqrt(7.76)
a = 2.78567765544
Round that to 2.8 and there's your answer
What is the m_ACB?
O 10°
B.
0 50°
(4x)
O 90°
O 180°
(7x-20)
С
Answer:
180
Step-by-step explanation:
90 + 4x + 7x - 20 equals to 180
Answer:
B. 50
Step-by-step explanation:
Determine the area of the shaded region.
А
6
B
8
A and B are midpoints.
I really need help no files or links brainly removes it
Finding a final amount in a word problem on exponential growth or decay
An amount of $41,000 is borrowed for 9 years at 6.25% interest, compounded annually. If the loan is paid in full at the end of that period, how much must be paid back?
Use the calculator provided and round your answer to the nearest dollar
Answer:
A = $70753
Step-by-step explanation:
[tex]A = P(1 + \frac{r}{n})^{nt}[/tex]
P = $41000
r = 6.25% = 0.0625
n = 1
t = 9
[tex]A = 41000(1 + 0.0625)^9 = 70752.91[/tex]
[tex]A = \$70753[/tex]
Please answer correctly !!!!! Will mark Brianliest !!!!!!!!!!!!!!
Answer:
No it's not compulsory.
Step-by-step explanation:
If the ratio of sides are given then that can also help you find angle. Not only that if the relationship between the perpendicular and base are given then you can find angle
E.g.
if the ratios of the sides is 5:4:3 then you can find the angle
True or False
3 is a factor of n(n + 2)(n − 1) by mathematical induction.
Explain why.
true true true true true true true
Answer:
false
Step-by-step explanation:
3(3+2)(3-1) is not =0
The factor of n(n+2)(n-1) = 1
Someone please help me ?!?!?
Answer:
2nd is correct
Step-by-step explanation:
ok now mark me brainlist
Sombody please help me
Answer:
complementary
Step-by-step explanation:
complementary angles are are angles that add up to 90 degrees
What is the value of
(5x2)3 + 16y + 4y for x = 2 and y = 3?
hello
Step-by-step explanation:
[tex]90.[/tex]
90 is the answer:)
what is the value of 24,093 + 3?
A. 831
B. 8031
C. 8301
D. 8310
Answer:
B (8,031)
Step-by-step explanation:
None of these could be 24,093 + 3 so I'm gonna assume you meant ÷ instead of +
PLEASE HElp asap
Solve for x.
x = [?]
X + 19
7x + 9
A rectangular prism is 12 cm long, 6 cm wide and 5 cm high. What is the volume of the rectangular prism?
Answer:
360cm
Step-by-step explanation:
Volume=mass
volume
The topic is about secant tangle angles
Answer:
41
Step-by-step explanation:
360-(104+104+111)=41