Step-by-step explanation:
1-2cos²c.
> (cos²c+sin²c)-2cos²c. (cos²c+sin²c=1)
> cos²c+sin²c-2cos²c
> sin²c-cos²c.
is your correct answer.
hope this helps you.
HELP ASAP 42 MINS LEFT!!
question: What is the quotient of 2 over 3 and 2 over 9 ?
Options: 1/6, 1/3, 3, 6
Answer:
The answer is 4/9. But I do not think that the options that you provided are true.
Which of the following is a trinomial with a constant term?
A. x + 2y + 10
a
B. X
c. Y6+ 8y3 + 64y
+
D. x2 + y
Answer:
The answer would be
A. x + 2y + 10
A constant term is considered any term that does not change or have a variable with it. 10 is the only displayed constant term.
Answer:
[tex]\\ \sf\longmapsto x^2+y[/tex]
Step-by-step explanation:
Trinomial means the expression has 3 roots.
In the last one
x has degree 2 so it has 2roots. And there is another variable namely y so another root.Total 3 roots
Please answer and show Work
1.
7/20 = 0.352.
1.(27) = (127 - 1)/(100 - 1) = 126/99 = 14/113.
1 7/8 = 1.8754.
x² = 81 ⇒ x = √81 = ± 95.
x³ = 343 ⇒ x = ∛343 = 76.
x² = 1/100 ⇒ x = √1/100 = ± 1/10 = ± 0.17.
x² = 200 ⇒ x = √200 = 10√2 ≈ 14.14 ft1.28.
121/√121 = √121 = ± 11 ⇒ Integer, Rational number, Real number9.
π/2 ⇒ irrational number, Real number10.
'All integers are rational numbers' ⇒ TRUE as each can be shown as p/q1.311.
√8 + 3 < √9 + 3 = 3 + 3 = 6 ( < ) 8 + √312.
√5 + 11 > √4 + 11 = 2 + 11 = 13 ( > ) 5 + √11 < 5 + √16 = 5 + 4 = 913.
√99 ≈ 9.94, π² ≈ 9.869 , 9.(8) ≈ 9.888 π² < 9.(8) < √9914.
√1/25 = 1/5 = 0.2, 1/4 = 0.25. 0.(2) = 0.222√1/25 < 0.(2) < 1/4Anyone know this? Help
Find the quotient I need help
Answer:
There is no picture or anything.
Step-by-step explanation:
But to find the quotient all you have to do is divide!
Hope that helps!
How was your day? I hope it was great! :)
Which general rule maps triangle ABC into triangle A’B’C’?
100 POINTS!! BRAINLIEST!!! The graph of the equation y=mx+b is a ____ that shows ____ to the equation . Fill in the blanks.
Answer:
slope intercept form or an linear equation.
7-12 plz help me identify each pair of angles
7. supplementary
8. same side interior angles
9. alternate exterior angles
10. vertical angles
11. complementary angles (I’m not entirely sure about this one)
12. alternate interior angles
Evaluate the expression. {[(12−36)÷(−12)]²−20}÷(−4) plz help asap
Answer:
I don't know which one it is. It is either 56 or -4. I will come back when I am done the quiz.
The answer is 4 and yes it is spelled 4. IT IS NOT -4. I REPEAT IT IS NOT -4
Step-by-step explanation:
After the simplification of the given expression, the value in the outcome is 4.
Given that,
To evaluate the expression. {[(12−36)÷(−12)]²−20}÷(−4).
The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.
Here,
= {[(12−36)÷(−12)]²−20}÷(−4).
Simplifying.
= {[-24/-12]²-20}/-4
= [4-20]/-4
=-16/-4
= 4
After the simplification of the given expression, the value in the outcome is 4.
Learn more about simplification here: https://brainly.com/question/12501526
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WILL GIVE BRAINLIEST
Find the measure of 23 given angle 2 is 70 degrees.
Answer:
m∡2 = 70°
Step-by-step explanation:
angles 2 and 3 have the same measure in degrees because they are 'vertical angles'
can someone help me out ?
Answer: 6 2/25
Step-by-step explanation:
8/100 + 6
6= 6/1
6/1 + 8/100= 6 6/25 = 6.08
Answer:
6.08
Step-by-step explanation:
1. 1 hundredth is equal to 0.01 because it's 1 unit of out 100.
2. 1 whole is equal to 1 because it's just one, whole unit.
3. Given this information, 8 hundredths would be 0.08 and 6 wholes would be 6.
4. Now, to find the sum, just add these two numbers together:
[tex]6+0.08[/tex] [tex]6.08[/tex]Therefore, the answer is 6.08.
In training for a swim meet, Logan swam 750 meters in of an hour. His swimming partner, Mila, swam of Logan's distance in of an hour.
Fill in the blanks to compare Mila's and Logan’s swimming speeds.
Compare Mila's and Logan’s swimming speeds. Show your work.
Is this your question?
In training for a swim meet, Logan swam 750 meters in 1/3 of an hour. His swimming partner, Mila, swam 2/3 of Logan's distance in 1/4 of an hour. (the question is What is Mila's average swimming speed?)
Answer:
Mila's average swimming speed is 34.44 m/min.
Logan's average speed is 2.25 kilometers per hour.
Step-by-step explanation:
Given:
In training for a swim meet, Logan swam 750 meters in 1/3 of an hour.
His swimming partner, Mila, swam 2/3 of Logan's
To Find:
What is Logan's average swimming Speed?
Solution:
The relationship between speed, distance, and time is easily remembered when you consider that speed is written in terms of units of distance per units of time. (miles per hour, or kilometers per hour, for example) "per" means "divided by".
[tex]\left[Speed=\frac{Distance}{Time} \right][/tex]
[tex]\left[speed = (750 m)/(1/3 h) = 2250 m/h = 2.25 km/h\right][/tex]
Logan's average speed is 2.25 kilometers per hour.
-------------------------------------------------------------------------------------------------------------
Given:
In training for a swim meet, Logan swam 750 meters in 1/3 of an hour.
His swimming partner, Mila, swam 2/3 of Logan's distance in 1/4 of an hour
To find:
What is Mila's average swimming speed?
Solution:
The distance swam by Logan = 750 m
The distance swam by Mila = 2/3 of Logan's distance = 2/3 x 750 = 2 x 250 = 500
The time taken by Mila to swim 500 m = 1/4 of an hour = 1/4 x 60 = 15 Minutes [since 1 hr = 60 mins]
We know the formula as:
[tex]\left[Speed=\frac{Distance}{Time} \right][/tex]
Now, substituting the values in the formula above to find the speed of swimming of Mila,
The average swimming speed of Mila = [tex]\frac{500m}{15mintues}[/tex][tex]=33.34m/min[/tex]
Therefore, Mila's average swimming speed is → 34.44 m/min.
The sum of three consecutive even integers is 642. What are the integers? (Show your work too please)
Answer:
212,214,216
Step-by-step explanation:
n+n+2+n+4=642
add the n's and 2 and 4
3n+6=642
subtract 6 from both sides
636 divided by 3
you get 212 then add 2 twice.
Answer:
212, 214, 216
Step-by-step explanation:
Basically you can divide 642 by 3 to find the average number of the 3. get You get 214, so that means 214 + 214 + 214 = 642
We need consecutive EVEN integers though, so you can take the one even BEFORE and then one even AFTER 214
This means 212 and 216 are used as they are 2 before and 2 after, so when added they still total 642.
what is the distance between points -3,6 and 12, 6
Answer:
15 units
Step-by-step explanation:
hope i helped!
Wilmer went up the hill for xxx minutes at a speed of yyy kilometers per minute. Then he went down the same path at a speed of zzz kilometers per minute, and it took him www minutes to do it.
Write an equation that relates xxx, yyy, zzz, and www.
The equation that relates xxx, yyy, zzz, and www is xxxyyy = wwwzzz
Since Wilmer went up the hill for xxx minutes at a speed of yyy kilometeres per minute, the distance d he moves up the hill is d = speed × time = yyy × xxx = xxxyyy.
Also, Wilmer travels the same path at a speed of zzz kilometers per minute and it took him www minutes. So, the distance d' he moves down hill is d' = speed × time = zzz × www = wwwzzz.
Since the distance he moves up the hill equals the distance he moves down the hill, d = d'
So, xxxyyy = wwwzzz
So, the equation that relates xxx, yyy, zzz, and www is xxxyyy = wwwzzz
Learn more about equations here:
https://brainly.com/question/12354057
Answer:
xy = wz
Step-by-step explanation:
Answer please............................... and correctly
Answer:
3,7. 12,26
6,7.5 25,30
here is the best i can do for u other all good luck
I need help, can someone help me plz?
I NEED HELP QUICK
The wholesale cost for a baseball glove at a sporting goods store is $16.50. The store plans to mark up the glove by 120%. What will be the selling price of the baseball glove to the nearest cent?
Answer:
19.80
Step-by-step explanation:
multiply
Answer:
Cost: 16.50
Markup: 120%
Answer: 19.80
profit: 3.30
Help me please! (need it quick)
25 POINTS plus A THANKS, BRAINLIEST AND 5 STAR
Answer:965.3
Step-by-step explanation:
find the sum of the first 10 term of geometric sequence 1,4,16,64
with solutions
Answer:
349,525
Step-by-step explanation:
1st term:1
2nd term:4
3rd term:16
4th term:64
5th term:256
6th term:1024
7th term:4096
8th term:16384
9th term:65536
10th term:262144
Add them together and get 349,525
y=(x-4)^2
Please explain how to graph the function
Answer:
[tex]y=(x-4)^{2}[/tex]
Step-by-step explanation:
Find some points on the graph to do the plot.
[tex]x=0\\x=1\\x=2\\x=3\\x=4[/tex] [tex]y=16\\y=9\\y=4\\y=1\\y=0[/tex]
Complete the remaining part of the graph by symmetry.
in the right triangle, the legs have lengths 5 and 7 . Express the length of the hypotenuse in radical form?
Answer:
[tex]\sqrt{74}[/tex] units
Step-by-step explanation:
Hi there!
We can use the Pythagorean theorem to solve this question:
[tex]a^2+b^2=c^2[/tex] where a and b are the two legs and c is the hypotenuse
Plug in the two legs 5 and 7 and solve for c, the hypotenuse:
[tex]5^2+7^2=c^2\\25+49=c^2\\74=c^2\\c=\sqrt{74}[/tex]
Therefore, the length of the hypotenuse in radical form is [tex]\sqrt{74}[/tex] units.
I hope this helps!
a) (x+1)^3=
b) (2x +y)^3=
Answer:
x= -1 is the option a
answer
The difference between the product of (-15) and (-2) and the sum of (-10) and (+3)
Write a mathematical expression that represent the statement given above.
Answer:
(-15)(-2) - (-10)+3 (or in other words 30-(-7))
Step-by-step explanation:
Product means to multiply
Sum means to add
I like to use brackets and put all the pieces together one at a time to ensure I'm doing exactly as the question asks:
difference ([product of (-15) and (-2)] and [sum of (-10) and (+3)])difference [ (-15 × -2) and (-10 + 3)](-15 × -2) - (-10 + 3)30 - (-7)Remember:
difference means subtraction
product means multiplication
sum means addition
100 points
Fill in the missing statements and reasons in this proof. Number your reasons 1 through 5 as they would be shown in the chart below.ty
Given: m∠LOM = m∠JKI;
m∠MON = m∠IKH
Prove: m∠LON = m∠HKJ
#1
m<LOM=m<JKL
Similar corresponding bisector angles#2
Linear pair .
#3.
Complementary angles
#4
Angle bisector theorem
#5
Similarity theorem
As per the given condition m ∠LOM = m ∠JKI, m ∠MON = m ∠IKH it is proved that m ∠LON = m ∠HKJ as they are congruent angles.
What are congruent angles?"Congruent angles is defined as the angles with equal measure."
According to the question,
In the given figure of the angles,
m ∠LOM = m ∠JKI (given congruent angles) _____(1)
m ∠MON = m ∠IKH (given congruent angles) _______(2)
Add both the side angle m ∠MON in (1) we get ,
m ∠LOM + m ∠MON = m ∠JKI + m ∠MON
Replace angle m ∠MON = m ∠IKH from (2) on right hand side we get,
m ∠LOM + m ∠MON = m ∠JKI + m ∠IKH ____(3)
m ∠LOM + m ∠MON = m ∠LON ( M is the interior point of ∠LON) ___(4)
m ∠JKI + m ∠IKH = m ∠HKJ ( I is the interior point of ∠HKJ) ___(5)
Form (3) , (4) and (5) we get,
m ∠LON = m ∠HKJ (Congruent angles)
Hence, form the given condition it is proved that m ∠LON = m ∠HKJ , are congruent angles.
Learn more about congruent angles here
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Help pls (I took a picture of the problem)
Answer:
D
Step-by-step explanation:
Liam is setting up folding chairs for a meeting. If he arranges the chairs in 5 rows of the same length, he
has 5 chairs left over. If he arranges the chairs in 3 rows of that same length, he has 15 left over. How many
chairs does Liam have?
Liam has
chairs.
Answer:
30 Chairs
Step-by-step explanation:
I will solve this problem using algebra and try to explain in detail.
We can form two equations with the information given to us.
Firstly, 5 times a length of chairs (I will call this unknown length of chairs x), plus 5 left over chairs, equals the total number of chairs (I will call the total number of chairs y).
5x + 5 = y
Secondly, 3 times a length of chairs (I will call this unknown length of chairs x), plus 15 left over chairs, equals the total number of chairs (I will call the total number of chairs y).
3x + 15 = y
Since both equations are equal to y, they are equal to each other
5x + 5 = 3x + 15
Take 5 away from both sides of the equals, and take away 3x from both sides of the equals
5x - 3x = 15 - 5
2x = 10
Divide both sides by 2
x = 5 chairs
Put this back into either the first equation or the second to solve for y
3 (5) + 15 = y
15 + 15 = y
y = 30 chairs
does anyone mind helpin me with this issue
Answer:
5
Step-by-step explanation:
QR / PS = QP / SR
2x + 3 / 4x - 7 = 7 / 7
2x + 3 / 4x - 7 = 1
2x + 3 = 4x - 7
4x - 2x = 3 + 7
2x = 10
x = 10 / 2
x = 5
if i divide by 7 and subtract by 3 i get 0 what is my number
Answer:
21
Step-by-step explanation:
to find the number you have to add 3 to zero and then multiply by 7 to get 21 because 21 divided by 7=3 and then subtract 3 and you get zero
Olivia is selling boxes of Girl Scout cookies. For every 20 boxes she sells, she raises $15 for charity. If Olivia has a goal of raising $60, how many boxes of cookies does she need to sell. Use the numberline to help you solve if needed.
Answer:
80 boxes
Explanation:
15 goes into 20 4 times, so if 15 dollars = 20 boxes that would be 80 boxes of cookies she would have to sell.
15+15+15+15= 60
20+20+20+20= 80