Answer:
[tex]\cos(69)[/tex]
Step-by-step explanation:
We will use the co-function identity for sine, where:
[tex]\sin(x)=\cos(90-x)[/tex]
Since sin(21)=0.358=cos(x). This means that:
[tex]21=90-x[/tex]
Solve for x. Add x to both sides:
[tex]x+21=90[/tex]
Subtract 21 from both sides:
[tex]x=69\textdegree[/tex]
Hence:
[tex]\sin(21)=\cos(69)\approx0.358[/tex]
A basketball team played six games. In those games, the team won by 7 points, lost by 20, won by 8, won by 11, lost by 3, and won by 9. What is the mean amount by which the team won or lost over the six games?
Answer:
2
Step-by-step explanation:
Evaluate This Question
2 cadenas de operaciones distintas cuyo resultado sea 325 utilizando las 4 operaciones básicas
Answer:
Dos cadenas de operaciones matemáticas distintas, cuyo resultado sea 325 utilizando las 4 operaciones básicas (suma, resta, multiplicación y división) pueden ser las siguientes:
((2 + 8) / 2) x 65 = 325
10 / 2 x 65 = 325
5 x 65 = 325
325 = 325
((300 / 10) x 15) - 130 + 5 = 325
(30 x 15) - 130 + 5 = 325
450 - 130 + 5 = 325
325 = 325
The 2 different chains of operations resulting in 325 using the 4 basic operations are;
[tex]=[(500 +(450\times2)) - 100]\div4\\=[(500+900)-100]\div4\\=[1400-100]\div4\\=1300\div4\\=325[/tex]
and;
[tex]=[(140 +125)-135)] \div 2]\times5\\=[(265-135)\div2] \times 5\\=(130\div2)\times 5\\=65\times 5\\=325[/tex]
According to the question, we are to find 2 different chains of operations resulting in 325 using the 4 basic operations.
The four basic operations are addition(+), subtraction(-), division(÷) and multiplication (×).
One of the chains of operation will be:
[tex]=[(500 +(450\times2)) - 100]\div4\\=[(500+900)-100]\div4\\=[1400-100]\div4\\=1300\div4\\=325[/tex]
Another chain of reaction will be:
[tex]=[(140 +125)-135)] \div 2]\times5\\=[(265-135)\div2] \times 5\\=(130\div2)\times 5\\=65\times 5\\=325[/tex]
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To find the quotient 2/5 divided 1/4,
A. Multiply 5/2 by 4
B. Multiply 2/5 by 1/4
C. Multiply 5/2 by 4
D. Multiply 5/2 by 4
HELP ME PLEASEEEE 20 POINTS AND BRAINLY HAAAALP
Answer:
None of the choices are correct.
Step-by-step explanation:
To divide a fraction by another fraction, multiply the first fraction by the reciprocal of the second fraction.
2/5 divided by 1/4 = 2/5 times 4/1 = 2/5 times 4
Correct answer: Multiply 2/5 by 4
Answer: None of the answers are correct.
Answer:
None
Step-by-step explanation:
5.03)
Factor x2 - 4x + 5. (4 points)
Answer:
(x + 5) (x - 1)
You spend half of your money on a movie ticket. Then you spend half of what you have left to buy a large popcorn. Then you spend half of what remains to buy a small drink. Which expression equals the fraction of money you have left?
Answer:
1/8
Step-by-step explanation:
1 divided by 2 = 1/2
1/2 divided by 2 = 1/4
1/4 divided by 2 = 1/8
help me pls thank you
Answer:
discrete
Step-by-step explanation:
This graph is discrete. A discrete graph has separate values, which are represented by multiple unconnected points. In continuous graphs, the values are all connected to each other. If this graph was continuous, then we would see a line rather than separate dots. The graph can also not be neither continuous nor discreet because it passes the vertical line test, meaning that it is a function.
Hope this helps :)
plsss help me:(! Write a real world problem for each inequality 5x – 50 100
Answer:
Ed had 5 books and each book had 100 pages and it takes him 50 mins to read each book how many books can he read in a day?
sorry if it's not good I try.
Step-by-step explanation:
What is 5-4 in the quadratic
Answer:
1
Step-by-step explanation:
The point is located in the first quadrant because x and y are both positive. The quadrants are labeled in counter-clockwise order, starting in the upper-right.
What’s the slope
Please help
Answer:
it's 8/7
Step-by-step explanation:
if you go up 8 and over 7 you get to your next point. remember its rise over run, y/x
Answer:
8/7
Step-by-step explanation:
If you go up 8 and over 7 you get to your next point. remember its rise over run, x/y
What is the expression of 22x(4+3+1)
Answer:
176x
Step-by-step explanation:
Step 1. Add the numbers
22x(4+3+1)
22x(8)
Step 2. Multiply the numbers
22x times 8= 176x
Help please .........
Answer:
50%, 20%, 36%
Step-by-step explanation:
A: 2012=190, 2014=285. 95 more students. 95 is half of 190.
B: 2014=285, 2015=228. 57 less students. 57 is 20% of 285.
C: 2013=210, 2014=285. 75 more students. 75 is roughly 36% of 210.
GIVING OUT BRAINLIEST TO FIRST ✅CORRECT✅ ANSWER
Answer:
1,-5 and -1,-3
Step-by-step explanation:
Find the difference: 3/10 - 1/6
Answer:
2/15
Step-by-step explanation:
10 = 2 * 5
6 = 2 * 3
LCM of 10 , 6 = 2 * 3 * 5 = 30
[tex]\frac{3}{10}-\frac{1}{6}=\frac{3*3}{10*3} - \frac{1*5}{6*5}[/tex]
[tex]= \frac{9}{30} - \frac{5}{30}\\\\=\frac{9-5}{30}\\\\=\frac{4}{30}\\\\=\frac{2}{15}[/tex]
Amanda purchased a prepaid phone card for $20. Long distance calls cost 11 cents a minute using this card. Amanda used her card only
once to make a long distance call. If the remaining credit on her card is $16.81, how many minutes did her call last?
minutes
Answer:
29 minutes?
i divided 3.19 by 11 (20 - 16.81 is 3.19) and i got 29 so i think it is that amount of minutes
Solve the proportion 6/y=9/24
Answer:
It would be 16!
Step-by-step explanation:
Step 1 : 6 times 24 is 144
Step 2 : 144/9
Answer 16!
Answer:
ur dad and. ur mom plus ur dad mama ififjfifnfbfndjfkjfif
If he saves $50 a week , about how many months will it take to have enough to buy the motorcycle
Answer:
Step-by-step explanation:
There is not enough info.
But you would take-
price of the motorcycle=50(x) x is the number of months. I can't give the exact amount without the price of the bike.
a delivery person uses a service elevator to bring boxes of books up to an office. the delivery person weighs 160 lb and each box of books weighs 50 lb. the maximum capacity of the elevator is 1400 lb. how many boxes can the delivery person bring up at one time?
Given Z1 and Z2, find the
distance between them.
Z1 = 2 – 3i and Z2 = 4 + i
Answer:
The distance between given points is: √20
Step-by-step explanation:
The given numbers are complex numbers. In order to find the distance between two numbers in complex plain, their difference is taken and then modulus is applied.
Given numbers are:
[tex]z_1 = 2-3i\\z_2 =4+i[/tex]
The difference will be calculated as:
[tex]z_2-z_1 = (4+i)-(2-3i)\\= 4+i-2+3i\\=2+4i[/tex]
The distance will be:
[tex]d = \sqrt{(2)^2+(4)^2}\\= \sqrt{4+16}\\=\sqrt{20}[/tex]
Hence,
The distance between given points is: √20
Which number is a factor of 92?
Answer:
46 is the factor
Step-by-step explanation:
92 / 2 = 46
po
In a recent year, the mean number of strokes per hole for a famous golfer was approximately 3.9.(a) Find the variance and standard deviation using the fact that the variance of a Poisson distribution is σ2=μ.(b) How likely is this golfer to play an 18-hole round and have more than 72 strokes?
Answer:
Variance = 3.9
Standard deviation = 1.975
p(x > 72) = 0.38482
Step-by-step explanation:
Given that :
Mean number (μ) of strokes per hole is approximately 3.9
For a poisson distribution :
σ² = μ
Hence,
Variance (σ²) = μ = 3.9
The standard deviation σ = √(σ²)
σ = √3.9 = 1.9748417
Poisson distribution relation :
p( x = x) = (λ^x * e^-λ) / x!
For an 18-hole round :
λ = 18 * 3.9 = 70.2
Using the poisson distribution calculator ; where λ = 70.2 ; x = 72
p(x > 72) = 0.38482
Which of the following is a rational number? A.102 B.144 C.21 D.29
Answer:
I'm pretty sure they're all rational numbers since they're all whole numbers.
If P is the circumcenter △ A B C, and AD =3x - 11, DB =5x - 29, PC =18, find DP.
Answer:
8.2
Step-by-step explanation:
1. Since AD is equal to DB, we will need to set 3x-11 equal to 5x-29. When you solve the equation you will get 9 for x.
2. Plug the 9 in for x in DB (you could plug it in for AD instead if you want since DB and AD are equal to each other). You should get 16.
3. Take a look at the smaller triangle DBP which is part of triangle ABC. We will need to use the Pythagorean Theorem. Square the legs of the triangle and set it equal to the hypotenuse squared. One of the legs, DP, is unknown so we will just have it as x. The other leg is DB, which is 16.
* PB is the hypotenuse and has a value of 18. Remember that P is the circumcenter, which means it is equidistant to each vertex and each angle bisector is equal to each other. As a result PC is equal to PB which happens to be 18.
You should have it something like this:
16^2 + x^2 = 18^2
Now do all the squaring and stuff and you should eventually get x^2 = 68
4. Square root x^2 = 68 and you will get a long decimal. You will need to round it to the tenths place.
5. After rounding you will finally get 8.2
The measurement of DP is 8.2 units.
What is circumcenter of a triangle?The circumcenter of a triangle is defined as the point where the perpendicular bisectors of the sides of that particular triangle intersect.
Given that, P is the circumcenter △ ABC, and AD = 3x - 11, DB =5x - 29,
PC = 18
Since, DP bisects AB, so, AB = DP
3x-11 = 5x-29
x = 9
DB = 5*9 - 29 = 16
Since, P is the circumcenter, then PB = PC = PA = 18
Using Pythagoras theorem in Δ BPD
PB² = DB² + DP²
DP² = PB² - DB²
DP² = 18² - 16²
DP² = 324 - 256
DP² = 68
DP = 8.2
Hence, The measurement of DP is 8.2 units.
For more references on circumcenter of a triangle, click;
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What's 84 divided by 10 1/5? Thanks.
Answer:
8.23529412
Step-by-step explanation:
Do long division to get the answer as simple as that!
Answer:
168
Step-by-step explanation: (10 1 ÷5) ÷ 84
When testing for current in a cable with eleven color-coded wires, the author used
required for every possible pairing of two wires?
meter to test two wires at a time.
The number of tests required is
If f(x) = (2x^3 − 4)^6, then what is f '(x)?
21x^2(x^3 − 4)^5
21x^8
6(2x^3 − 4)^5
6(2x^3 − 4)^5(6x^2)
If the Semi Monthly is $4,000
A) How much is the Annual?
B) How much is the Bi Weekly?
C) How much is the Monthly Pay?
D) How much is the Weekly Pay?
E) How much is the Hourly Pay?
Im at a loss on how to answer this I reallyy need help
16 1/9+ -4 2/3 help please??
Answer:
11 4/9
Step-by-step explanation:
ANDDD the answer is
is 9pi > 27 a true inequality?
2 4/5 ___ 2.45
(>,<,=)
Answer:
2 and 4/5 > 2.45
Step-by-step explanation:
2.8 is greater than 2.45
Answer:
2 4/5 is equal to 2.8 so 2 4/5 > 2.45
Step-by-step explanation: