Answer:
[tex] \sin( - 120) + \cos( - 120) \\ \\ = - \frac{ \sqrt{3} }{2} + ( - 0.5) \\ \\ = - \frac{ \sqrt{3} }{2} - \frac{1}{2} \\ \\ = { \boxed{ - ( \frac{1 + \sqrt{3} }{2}) }}[/tex]
Answer: -1.366
3x + 4y - 2x + 10y please I need help
Answer:
x+14y
Step-by-step explanation:
Collect like terms. It simplifies into x+14y
What is the solution -3(y+1)+7y=4(y+1)-5
No solution
Y=
All real number are solutions
Lucy took a taxi from her house to the airport. The taxi company charged a pick-up
fee of $3.80 plus $3 per mile. The total fare was $39.80, not including the tip. Write
and solve an equation which can be used to determine x, the number of miles in the
taxi ride.
Answer:
if you do 39.80/3 it would give you 13.2667 miles and since the tip was not added thats when you dont do anything with that number and 3 because every mile you pay 3$
Step-by-step explanation:
change 12 1/2% to a declmal and then to a fraction in its lowest terma
[tex]change 12 \: 1 \2 \: to \: a \: declmal \: and \: then \: to \: a \: fraction \: in \: its \: lowest \: terma [/tex]
Ezekiel decomposed the rectangle shown into three smaller rectangles. Then he demonstrated the Distributive Property by modeling the area of the entire rectangle in terms of the three smaller rectangles. Which equation could Ezekiel have used?
answer choices:
1. 21(3 + 3) = 21(3) + 21(3)
2. 6(6 + 12 + 3) = 6(6) + 6(12) + 6(3)
3. 21(3 + 2 + 3) = 21(3) + 21(2) + 21(3)
4. 6(10 + 10 + 11) = 6(10) + 6(10) + 6(11)
Answer:
2. 6(6+12+3) = 6(6)+6(12) + 6(3) = 36+72 + 18 = 126 unit square
Area = 126 unit square.
and satisfies the 3 rectangle area. However can such amounts fit inside the rectangle as distributable?
We prove length of 21 units =
21-6 = 15 Units length and 15 - 12 = 3. Proves all 3 measures of length does fit within the length of 21 units length
Conclusion Does satisfy as three length measures within one larger measure given for the large rectangle fit exact, to find area identical in totals.
Step-by-step explanation:
Proof area of 21 x 6 area rectangle = 126unit square
3 smaller rectangles made from same larger rectangle must = 126 unit square when all 3 smaller area are added together.
answer choices
1. 21(3+3) = 2(3)+21(3) only shows 2 rectangles area = 2 rectangles angle
Does not satisfy
2. 6(6+12+3) = 6(6)+6(12) + 6(3) = 36+72 + 18 = 126 unit square and satisfies the 3 rectangle area. However can such amounts fit inside the rectangle as distributable?
We prove length of 21 units =
21-6 = 15 Units length and 15 - 12 = 3. Proves it does fit within the width of 21 units length
Conclusion Does satisfy as three length measures within one larger measure given for the large rectangle fit exact, to find area identical in totals.
3. 21 (3+2+3) = 21 (3) +21 (2)+21 (3) does not satisfy 6 units width as 3+2+3 = 8 and is too high a number. Does not satisfy.
4.6(10+10+11) = 6(10) + 6(10) + 6(11) does not satisfy
The lengths of the three rectangles adds to 31 length as 10+10+11 = 31 instead of 21. Does not satisfy.
Simplify:
4(5y+9)
56y
9y + 13
20y + 36
I don't know.
Answer:
20y + 36
Step-by-step explanation:
Distribute the 4 to everything in the parenthesis (multiply).
4 x 5y = 20y
4 x 9 = 36
The solution of the expression 4(5y + 9 ) will be 20y + 36. The correct option is C.
What is an expression?Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.
Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.
The expression 4(5y+9) will be solved as below:-
E = 4 ( 5y+9 )
E = 20 y + 36
Therefore, the solution of the expression 4(5y + 9 ) will be 20y + 36. The correct option is C.
To know more about an expression follow
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!!!!please help i’m so confused
Answer:
52
Step-by-step explanation:
Answer:
total Area= 168, Permiter= 42
Step-by-step explanation:
correct me if I'm wrong
Which number is the best approximation for π/3 : 1, 1.03, 1.05, or 1.07?
Answer:
1,05
Step-by-step explanation:
9514 1404 393
Answer:
1.05
Step-by-step explanation:
The relative errors are ...
1 : -4.5%1.03 : -1.6%1.05 : +0.3%1.07 : +2.2%Of these choices, the best approximation is 1.05.
_____
A very good rational approximation of π is 355/113, which has a relative error of about 0.0000085%. This makes 355/339 a good approximation of π/3.
The relative error in the value n is ...
(3n/π -1) × 100%
a) What is 85% of 350?
b) What is 22% of 600?
Answer:
a)297.5
b)132
Step-by-step explanation:
85% of 350 = 0.85 * 350 = 297.5
22% of 600 = 0.22 * 600 = 132
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
Answer:
a. 297.5
b.132
Step-by-step explanation:
basically you multiply the numbers then move the decimal twice to the left.
Example: 85x350 = 29750
=297.5
what is statistics ???
explain !!!
Answer:
what is statistics ???
explain !!!
Step-by-step explanation:
Statistics is the science concerned with developing and studying methods for collecting, analyzing, interpreting and presenting empirical data. ... Probability is a mathematical language used to discuss uncertain events and probability plays a key role in statistics.Please mark me as brainliest
Please help me with this question
Answer:
Can you take a better picture
Step-by-step explanation:
Which set of three numbers could be the side length of a triangle. A) 5,5,10 B) 3,3,8 C) 5,5,14 D) 3,3,2
Answer:
B, C
Step-by-step explanation:
Chow,...!
Solve: |x+2|−1≥5. Write your solution in interval notation.
nswer:
Step-by-step explanat
|x+2| - 1 ≥ 5
|x+2| ≥ 5+1
|x+2| ≥ 6
x+2 ≥ 6 hoặc x+2 ≤ -6
+ với x+2 ≥ 6 x ≥ 6 – 2 x ≥ 4
+ với x+2 ≤ -6 x ≤ -6 – 2 x ≤ -8
(-∝;-8)∪(4;+∝)
What factors of -24 has the sum of 5
Answer:
8 and -3
Step-by-step explanation:
We need to list several factors of -24 that add up to 5.
After trying several possibilities we ge
8 x (-3) =24 and
8 + (-3) = 5
A rectangle has perimeter 92 cm and length 39 cm. What is its width?
Which of the following equations has 62 as a solution
a) n + 3 = 21
b) m × 3 = 186
c) y + 140 = 201
The value of m in expression m-10 = 450 Corresponds to
a) 45
b) 460
c) 201
In how many parts should a segment of length of 4 meters be divided to obtain segments of length of 80 centimeters
a) 5 parts
b) 4 parts
c) 80 parts
Answer:
1. b
2. b
Step-by-step explanation:
Sorry, I'm not so sure for c
Answer:
the correct answer is:-
1) b
2) b
3) c
Step-by-step explanation:
1 ) b
2 ) b
3) c
What is [tex]|x-6|[/tex] given that [tex]x \geq 6[/tex]
Answer:
[tex]\mid x-6 \mid \geq 0[/tex]
Step-by-step explanation:
We have two options for x; it is either 6 or greater than 6:
If [tex]x=6\\[/tex], [tex]\mid x-6 \mid = \mid 6-6 \mid = \mid 0 \mid = 0\\[/tex].
If [tex]x > 6[/tex], [tex]\mid x-6 \mid > \mid 6-6 \mid[/tex] => [tex]\mid x-6 \mid > 0[/tex].
(for example, if [tex]x=7\\[/tex], [tex]\mid x-6 \mid = \mid 7-6 \mid = \mid 1 \mid = 1 > 0[/tex])
So, [tex]\mid x-6 \mid = 0[/tex] or [tex]\mid x-6 \mid > 0[/tex]; [tex]\mid x-6 \mid \geq 0[/tex].
is the square root of 81 an integer number
Answer:
yes it is a integer number.
Solving one step equation x/10=3
Answer:
30
Step-by-step explanation:
X = 3 × 10
x = 30
Mark me brainlist
3. Diya's chances of winning the game are
only 40%.
Express this as a probability fraction.
Answer:
2/5
Step-by-step explanation:
40% as a fraction is 4/10, when this fraction is simplified, it ends up as 2/5.
The probability of the event that Diya's chance of wining the game is 0.4 or 2/5.
What is probability of an event?The probability of an event is the chance of happening that particular event.
Let, Diya can play a game 100 times.
Therefore, the number of times she can win the game is 40.
Let, D = the event that Diya is participating in the game.
Therefore, the probability that Diya will win the game is
[tex]= P(D)\\= \frac{40}{100}\\ = \frac{2}{5}\\ = 0.4[/tex]
Learn more about probability of an event here: https://brainly.com/question/22478862
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What is the distance between -4.2 and 9.1
Answer: 13.3
Step-by-step explanation:
9.1-(-4.2)
an airplane travels 3269 miles in 4 hours. what is the airplanes average speed?
Answer:
817.25 mph is the plane's avg speed
Step-by-step explanation:
Average speed is MPH (miles per hour)
SInce the plane travels 3269 miles in 4 hours, find the unit rate
[tex]\frac{3269}{4}[/tex]
Divide by 4
817.25 mph is the plane's avg speed
Solve the equation and check.
5
n-3 n +5
+
4 7
14
..
Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
O A. The solution is
(Simplify your answer.)
O B. The solution is all real numbers.
O C. There is no solution.
(Answer quickly)
Answer: the solution is [tex]n=\frac{51}{11} \\\\\\n=4\frac{7}{11} \\\\n=4.63[/tex]
i gave you the decimal and improper fraction
Step-by-step explanation:
Mutiply both sides by 28
7(n-3)+4(n-5)=10
distribute the 7
7n-21+4(n-5)=10
distribute the 4
7n-21+4n-20=10
combine like terms
11n-21-20=10
11n-41=10
11n-51
n=51/11
Find the lest number which is exactly divisible by 36 & 90 Maths
Answer:
180Step-by-step explanation:
You need to find the HCF of 36 and 90.
Prime factors of each:
36 = 2*2*3*390 = 2*3*3*5HCF includes all prime factors of both numbers:
HCF(36, 90) = 2*2*3*3*5 = 180To find the least number,
Which is exactly divisible by 36 and 90. We have to find the HCF of 36 and 90.
→ 36 = 2 × 2 × 3 × 3
→ 90 = 2 × 3 × 3 × 5
Then the required HCF will be,
→ 2 × 2 × 3 × 3 × 5
→ 180 (HCF)
Thus, 180 is the least number which is exactly divisible by 36 and 90.
Thank you for all the help
Base=7
Answer:
15½² +b²=8²
15+b²=64
b²=49
b=7
The average walking speed of a person is 4.8 kilometer per hour . Estimate the number of kilometer you could walk in 3 hours
Answer:
14.4 kilometers, not an estimate tho
15) Darla's marching band needs money to travel to a competition. Band
members have raised $580. They need to raise a total of $1660. Write
and solve an equation to find how much more they need.
Step-by-step explanation:
$1660-$580= $1,080
Answer:
1660 minus 580
Step-by-step explanation:
they have already raised 580. so get 1660 is to subtract 1660 to 580
After how many years are the salaries offered by Company A and Company B the same?
The salaries for Company A and Company B will be the same after _____
years.
Answer:
Step-by-step explanation:
24,000 = 24 thousands
30,000 = 30 thousands
3,000 = 3 thousands
2,4000 = 2.4 thousands
"x" years
24 + 3x = 30 + 2.4x
3x - 2.4x = 30 - 24
0.6x = 6
x = 10 years
How would I write the product of 3 and a number plus 5 is 15
Answer:
3×y+5=15
Step-by-step explanation:
Product means multiplication
Use a variable to replace the unknown number
Plus five is equal to fifteen.
Mr. Roper has eight teams of students in his debate class. Their grades on the last debate assignment are denoted by the set {99, 72, 86, 80, 96, 87, 79, 87). Which 5-number
summary represents the data set? (2 points)
A {72, 79, 86, 96, 99)
b {72, 79.5, 86.5, 91.5, 99}
c {72, 79, 83, 87, 96)
d {72, 79, 86, 87, 96)
Answer:
{72, 79.5, 86.5, 91.5, 99}
Step-by-step explanation:
I took the quiz and got it correct.
Minimum is 72
Maximum is 99
Q1 is 79.5
Q3 is 91.5
Median is 86.5
So the 5-number summary is {72, 79.5, 86.5, 91.5, 99}
