Select the correct answer.
Which expression is equivalent to sin^2x-sinx-2/sinx-2?
Answers
Answer:
A
Step-by-step explanation:
We are given:
[tex]\displaystyle \frac{\sin^2(x)-\sin(x)-2}{\sin(x)-2}[/tex]
To make it simpler and more clear, we can let u = sin(x). So:
[tex]\displaystyle \frac{u^2-u-2}{u-2}[/tex]
Now, it becomes obvious that we can factor, which produces:
[tex]\displaystyle =\frac{(u-2)(u+1)}{u-2}[/tex]
Cancel:
[tex]=u+1[/tex]
And substituting back:
[tex]=\sin(x)+1[/tex]
Hence, our answer is A.
Answer:
A
Step-by-step explanation:
Related Questions
is 2 a factor of 84?
Answers
Answer:
yes
Step-by-step explanation:
Factors of 84 : 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42 and 84
During a stock clearance sale ,a pair of shoes which cost $480 was sold at a small profit of 5% what was the selling price of the pair of shoes?
Answers
Which is the equation of the line that passes through the points (-4, 8) and (1, 3)?
Answers
Answer:
Step-by-step explanation:
(3 - 8)/(1 + 4)= -5/5= -1
y - 8 = -(x + 4)
y - 8 = -x - 4
y = -x + 4
What is the value of x? Justify each step. Given: AB bisects RAN. each angle BAN = (2x-75)
Answers
Answer:
The answer is portrayed in the picture below.
All copyright claims will proceed to Brainly Corporation.
Jamal pays $29.25 for 3 pounds of cocoa powder. Assume that the cost y, in dollars, is proportional to the amount of cocoa powder x, in pounds. find the slope
Answers
Answer:
Step-by-step :
Your answer
Your answer
9.75
Mark it as Brainlist answer. Follow me.
Mark it as Brainlist answer. Follow me.
The base of a prism has a perimeter of 12 centimeters and a height of 2 centimeters. The area of its base is 5 square centimeters. What is the surface area of the prism?
Answers
Answer:so multiply 12*2=24 and 24*5=120 Is your answer .
Step-by-step explanation:
Chloe has $15 to spend on pencils. Each box of pencils costs $2. How many
boxes of pencils can Chloe have buy? How much money will she have left
after she buys the pencils?
Answers
Which does not describe slope? I will mark Brainly plz help fast
Answers
Answer:
Initial value
Step-by-step explanation:
Initial value never changes, whatsoever.
Slope is either a constant increase or decrease.
Unit rate, rate of change, and "per" all describe a rate at a certain point which is always fluctuating.
Answer:
Initial value
Step-by-step explanation:
The initial value is the y-intercept.
what is the sum of 4 and 5
Answers
explanation: 4 + 5 = 9
Answer:
The answer is 9 because 4+5=9
Step-by-step explanation:
brainliest??????????????????????????????
Answers
Step-by-step explanation:
Given
f(x) = 3x² + 9
g(x) = 5x
(fog)x = f ( 5x)
= 3 ( 5x) ² + 9
= 3 * 25x² + 9
= 75x² + 9
Hope it will help :)
1. Which other expression has the same value as -14 - (-8)?
Answers
Hope this helps, thank you :) !!
helppppppppppp me please yes please yes lol yes plea
Answers
Answer:
C. 16
Step-by-step explanation:
A number squared means you need to multiply it by itself
So, 4 x 4 = 16
Answer:
c. 16
Step-by-step explanation:
multiply 4 two times because it's squared
4 x 4 = 16
The radius of a circle is 6 centimeters.
Enter the area of the circle, in square centimeters. Round your answer
to the nearest hundredth.
Answers
Answer:
113.04
Step-by-step explanation:
PLEASE HURRYY!!
2. Triangle ABC has angle measures as shown.
(a) What is the value of x? Show your work.
(b) What is the measure of angle C? Show your work.
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Answer:
x = 70
c = 72
Step-by-step explanation:
Use the Pythagorean theorem to find the missing side of the triangle!!
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7(11p + 3) -9 p equals
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Answer: 68p+21
Step-by-step explanation:
8.- Observa la siguiente operación y determina la respuesta correcta. [(-
35+14-63) + (-7)] ×
(-3)
Answers
Answer:
la respuesta es +273 porque menos por menos es igual a +
A person on top of a lookout tower spots a fire 100meter away. The height of the tower is 60 meters. Find the angle of elevation from the fire to the person.
Answers
Answer:
30.96° to the nearest hundredth
Step-by-step explanation:
Let x = angle of elevation
tan x = 60/100 = .6
x = arctan .6
x ≅ 30.96°
I need help bad!!!!!!! Question: Angle ABC and angle DEF are supplementary. If
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Answer:
Angle ABC and angle DEF are supplementary if and only if they add up to 180 degrees
Benjamin bought a 3-pound bag of flour for $6.95. What is the unit price per ounce of flour? (1 pound = 16 ounces)
Answers
Answer:
The unit price per ounce of flour is
Step-by-step explanation:
We can first change the 3 pound bag into ounces which is just 3x16=48 we can do this because 1 pound=16 ounces. Now we know there are 48 ounces so we divide 6.95/48
Which is .144791666...
Which function rule represents the data in the table below ?
y = 4 + 5 x
y = 3 + 6x
y= 5 + 4x
y = 6 + 3x
Answers
5. Which scenario matches the inequality?
3x < 12
Answers
Answer: B
Step-by-step explanation:
Which best describes the transformation that occurs from the graph of f(x) = x2 to g(x) = (x + 3)2 + 4?
left 3, up 4
right 3, down 4
left 3, down 4
right 3, up 4
Answers
Answer:
Left 3 down 4 is the correct answer so C
Answer:
B. right 3, down 4
Step-by-step explanation:
Denise has 6 hours to spend for an upcoming race. She completes her training by running full speed the distance of the race and walking back the same distance to cool down. If she runs at a speed of 7mph and walks back at a speed of 3 mph, how long should she plan to spend walking back?
Answers
d = rd (distance = rates x time)
She runs at a speed of 7 mph and walks at a speed of 3 mph.
Her distance running is d = 7tr where tr is the time she spends running Her distance walking isd = 3twwhere tw is the time she spends walking The distances are the same so7tr = 3tw We also know that the total time is 4 hourstr + tw = 4tr = 4-tw Substitute this value of tr in the first equation7tr = 3tw7(4-tw) = 3tw28-7tw = 3tw28 = 10tw2.8 = tw Denise will spend 2.8 hours (2 hours, 48 minutes) walking back and 1.2 hours (1 hour, 12 minutes running)i hope this helps:)
Answer:
She walks back for 4.2 hours
Step-by-step explanation:
Notice that we don't know the distance of the race (so let's name it "d").
She clearly would spend less time running (t1) the distance d at 7 mph, than when coming back walking (t2) at 3 mph.
But we know that the addition of both times must be 6 hours which is what she has to spend:
t1 + t2 = 6
Considering the equation that relates distance (D), time(t) , and speed (v) as:
v = D/t
we can solve for the times t1 and t2 in each trip (running vs walking){
t1 = d/7
t2 = d/3
then when we add these two equations term by term, we get:
t1 + t2 = d/7 + d/3
extract d common factor;
t1 + t2 = d (1/7 + 1/3)
replace t1 + t2 with the 6 hours:
6 = d (10/21)
multiply both sides by 21, and divide both sides by 10 to isolate d:
21 * 6 / 10 = d
d = 12.6 miles
Now knowing the distance she run and walked, we can find the time she spent walking back (t2)
t2 = 12.6 /3 = 4.2 hours
6. What is the measure of angle 7? (answer with the number only; not the
degree sign) *
Answers
Answer:
65
Step-by-step explanation:
because 5 and 7 are the same angle that means the opposite of the 65 has to also be 65
Clare has 80 pencils and 56 erasers to give away. What is the largest number of group that can formed with the same numbers of pencils and erasers in each group?
Answers
Answer:
56
Step-by-step explanation:
I assume each person in the group must have 1 pencil AND 1 eraser each.
Since you have more pencils than erasers, then the limiting factor is the number of erasers. So a group of 56 people will have 1 pencil And 1 eraser and Clare will have 24 pencils left over (assuming Clare has her own pencil and eraser - if not then the group size is 55 assuming Clare is not in the group)
sorry if it's too confusing
Joe measured a brick using a ruler with centimeters and got 9 cm. He then measured the same brick using a ruler with millimeters and got 90 mm. Are these measurements equivalent? Why or why not?
Answers
Answer:
yes, the measures are equivalent because the formula for cm to mm is times 10. 9 times 10 is 90.
Step-by-step explanation:
hope this helps! pls mark brainliest!
A basketball player is 80 inches tall. A model of a basketball player is 5 inches tall. What is the scale factor?
Answers
Answer:
1/16
Step-by-step explanation:
divide 5 into 80 to get 16 which 5 is 1/16th of 80
What is 2/5 divided 1/6
Answers
29 mm
가
120 mm
D
What is the perimeter?
millimeters
Answers
20^2 + b^2 = 29^2
400 + b^2 = 841
841 - 400 = 441
Square root 441 = 21
PERIMETER :
21+29+20 = 70
The answer is 70