In terms of the cosecant of a positive acute angle, what is the expression for csc 240°?
Answer:
- csc60°
Step-by-step explanation:
240° is in the third quadrant where csc < 0 , thus
csc240° = - csc(240 - 180)° = - csc60°
The expression for cosec 240° in terms of the cosecant of a positive acute angle is -cosec 60°.
What is the value of cosec (180°+α)?The value of cosec (180°+α) is -cosec α because (180°+α) lies in the third quadrant and in the third quadrant cosecant is negative.
So, cosec 240° = cosec (180°+60°)
cosec (180°+α) = -cosec α
So, cosec (180°+60°) = -cosec 60°
Thus, the expression for cosec 240° in terms of the cosecant of a positive acute angle is -cosec 60°.
To get more about trigonometric ratios visit:
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A robot can complete 3 tasks in 2/5 hour.
How many tasks can the robot completein one hour
Answer:
1.2 tasks per hour, round to 1 if needed
Step-by-step explanation:
BRAINLIEST ANSWER! please help
A falcon flying 55 mph crosses a lake in 1 minute. How long would it take a hummingbird flying 45 mph to cross the same lake?
Answer:
1 2/9 minutes
Step-by-step explanation:
55 mph
55 / 60 = 11/12
11/12 of a mile = 1 minute
45 mph
45 / 60 = 3/4
3/4 of a mile = 1 minute
11/12 divided by 3/4
11/12 * 4/3
We can cross-cancel
11/3 * 1/3 = 11/9 = 1 2/9
It takes 1 2/9 minutes for the hummingbird to cross the lake
Hope this helps!
(Please let me know if I did something wrong!)
The hummingbird will take 1 minute 13 seconds.
Let the time that will be taken by the hummingbird be represented by x
Note that 1 minute = 60 seconds
Based on the information given, the equation that'll be used in the question will be:
45/55 = 60/x
Cross multiply
(45 × x) = (60 × 55)
45x = 3300
x = 3300/45
x = 73.33 seconds
x = 1 minute 13 seconds
The hummingbird will take 1 minute 13 seconds.
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CAN SOMEONE PLEASE HELP ME ASAP ILL MARK BRAINLIST
Answer: 15.6
Step-by-step explanation: k/13 = 6/5 = 15.6
Help!!! This has to be done by 8am!!!
Translate One-third of a number is 14 into an equation
Answer:
1/3x=14
answer for x is 42
Step-by-step explanation:
x represents the original number and 1/3 of the number equals 14. So 1/3x=14
So therefore 1/3x=14 which x = 42 in case if you were wondering.
please help me asap will appreciate it a lot
slope of a line passing through points A (3, 2) and B (-2, -3)?
Answer:
1
Step-by-step explanation:
So for this type of problem we use the formula [tex]m= \frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex] with each variable (besides m which is slope) representing a different coordinate. (e.g. -3 could be [tex]y_{2}[/tex] in this case.) First, let's define which is which:
(3,2): [tex]x_{1}, y_{1}[/tex]
(-2,-3): [tex]x_{2}, y_{2}[/tex]
Now we need to replace the variables with their known values: [tex]m=\frac{-3-2}{-2-3}[/tex]
Next, let's do the subtraction to simplify: [tex]m=\frac{-5}{-5}[/tex]
And we can complete the division (all fractions are division!) to simplify even further: [tex]m = 1[/tex]
Therefore, the slope of the line passing through the points (3,2) and (-2,-3) is 1.
Two fitness clubs are asding new members. Fitness club A cutrently has 450 memebers and adds 15 nee memeners each month. Fitness club B currently has 400 members amd adds 25 new members each month. After how many months will fitness club A and B have the samr number of members?
Answer:
It will take 5 months for the two fitness clubs to have the same number of members
Step-by-step explanation:
Let the number of months it takes fitness club A and B to have the same number be = x
For the two clubs to have the same number in x months, that means we can set up an equation as follows
450 +15x = 400 + 25x
Grouping like terms
450 - 400 = 25x -15x
50 = 10x
x= 5
Therefore, it will take 5 months for the two fitness clubs to have the same number of members
Required
1. Gabby won 70 super bouncy balls playing basketball at the county fair. At school she gave one
to every student in her math class. She only has 51 remaining. How many did she give away?
Answer:
19
Step-by-step explanation:
70 - 51 = 19
To check:
19 + 51 = 70
The observatory in the John Hancock Center in Chicago is located in the top floor, 900 feet above the ground. The express elevator travels nonstop from the ground floor to the observatory on the top floor at a rate represented by the equation y=30x, where y is the height, in feet, and x is the number of seconds.
Answer:
Step-by-step explanation:
Given the rate at which the elevator travels modeled by the expression;
y = 30x where y is the height, in feet, and x is the number of seconds.
If the observatory in the John Hancock Center in Chicago is located in the top floor, 900 feet above the ground, we can calculate the time taken to reach the top floor by substituting y = 900 into the equation and solve for x as shown;
y = 30x
900 = 30x
Rearrange
30x = 900
Divide both sides by 30
30x/30 = 900/30
x = 30
Hence it takes 30seconds for the elevator to reach the top floor
write any five applications of cyliner
1. pipes
2.cold drink cans
3.water tanks
4.candle
PLEASE EXPLAIN HOW TO DO THIS PROBLEM
Answer:
y=1/3x + 2
Step-by-step explanation:
the y intercept is 2, and the second point goes up 1 over 3
rise over run
theKiley and her parents traveled to visit her grandmother. They drove 24.3 miles from their house to the airport in hour. At the airport, they exited the car and walked for hour to the waiting area by the gate to board their plane. Their walk covered 1.2 miles. From the waiting area, they walked another 0.1 mile to board the plane. The plane left the gate 45 minutes after they arrived at the waiting area. The plane flew 346 miles in hours. After the plane landed, Kiley and her parents walked for 30 minutes, covering 1.1 miles, before they found a cab. It was a 15-minute cab ride to get to Kiley’s grandmother’s house, which was 12.3 miles away. How long was the ride from kileys house to the airport?
NEED ANSWERS ASAP
Answer: The answer is just 24.3 miles.
The questions asked "How long was the ride from Kiley's house to the airport?"
The first sentence of the problem reads "They drove 24.3 miles from their house to the airport in an hour". The rest of the information isn't necessary to find this answer.
Step-by-step explanation:
What does it take to become a boxer?
Answer:
Train your very hardest. You can't just give up on day on. Believe in yourself.
Step-by-step explanation:
The complement of an angle is 53°. What is the measure of the angle?
A. 379
В. 1370
C. 479
D. 127
+
URGENT PLEASE HELP
359 divided by 19 can you tell me please
Answer:
18.8947368
Step-by-step explanation:
Answer: 18.8947368421
Step-by-step explanation:
-3(g – 4) = 2-3g
Solve with steps pls and explain
Caleb was building a birdhouse. He needed 2 boards that were each 6 inches long and one board that was 18 inches long. He was then able to cut the boards into pieces to use. What was the total length of the boards that he needed?
Answer:
The total length is 30 inches
Step-by-step explanation:
What is the Slope???????????final chapter!!!!!!!!!
Answer:
The slope is -7/4
Step-by-step explanation:
Hope This Helps!
Plz Mark Brainliest!
Answer:
i got 4/11 which simplified is still 4/11
how can you find the number halfway between 123 and 321?
Answer:
222
Step-by-step explanation:
Find the average of the 2 numbers , that is
average = [tex]\frac{sum}{count}[/tex] = [tex]\frac{123+321}{2}[/tex] = [tex]\frac{444}{2}[/tex] = 222
Is the ordered pair (–8, –7) a solution to the equation 3x + 10 = 2y? Show your work.
Answer:
yes
Step-by-step explanation:
Substitute x = - 8 and y = - 7 into the equation
If both sides are equal then (- 8, - 7) is a solution
left side = 3x + 10 = 3(- 8) + 10 = - 24 + 10 = - 14
right side = 2y = 2(- 7) = - 14
Since both sides are equal then (- 8, - 7) is a solution to the equation
Compare 6 ⋅ 10^8 to 3 ⋅ 10^6.
6 ⋅ 10^8 is 2,000 times larger than 3 ⋅ 10^6.
6 ⋅ 10^8 is 200 times larger than 3 ⋅ 10^6.
6 ⋅ 10^8 is 20 times larger than 3 ⋅ 10^6.
6 ⋅ 10^8 is 2 times larger than 3 ⋅ 10^6.
Answer:
20, 2
Step-by-step explanation: 6•10^8 is 20 times larger than 3•10^6. 6•10^8 is 2 times larger than 3•10^6.
Answer:
6 ⋅ 10^8 is 200 times larger than 3 ⋅ 10^6.
Step-by-step explanation:
I honestly have no explanation.
Please?
4. - 3+(-3)=-3-3 True False
Step-by-step explanation:
-3 +(-3)
= -3 -3
True because (+)(-) = -
A store is marking down the price of a television 25 percent from the original price of $250. Which expression can be used to find the marked down price?
Answer:
250 × 0.25
Step-by-step explanation:
x/250 × 25/100
cross multiply
100x = 250 × 25
100x = 6250
divide by 100
x = 62.5
62.5 is how much the price got marked down
original price - marked down amount = new discounted price
250 - 62.5 = 187.5
$187.50 is now the actual price
As for which expression can be used to find the marked down price, none are listed in this problem and I'm assuming its a multiple choice question considering the wording of "which"
how i solved it is through cross multiplication but another way is by using the expression:
250 × 0.25
this is because 25% equals 0.25
The perimeter of a rectangle is 600 yards. What are the dimensions of the rectangle if the length is 30 yards more than the width?
Answer:
L=165 W=135
Step-by-step explanation:
I plugged in numbers till I found the right fit or you could use the equation P=L+W
Answer: Length of one side: 165 Width of one side: 135
Step-by-step explanation: hope this helps
Rico bicycles at an average speed of 13.5 miles per hour. What distance will Rico bicycle in 3.5 hours? Rico will bicycle 13.5 × 3.5 = 47.25 miles in 3.5 hours. Use estimation to show that the above result is reasonable. Part 1 out of 2 Round 13.5 to and 3.5 to .
Answer:
47.25 milesStep-by-step explanation:
Speed = Distance/Time
Given
Speed = 13.5miles/hour
Time taken = 3.5hours
From the formula;
Distance = Speed * Time
Substitute the given parameters into the resulting equation
Distance = 13.5 * 3.5
Distance = 47.25miles
Hence the distance that Rico bicycle covered is 47.25miles
Which numbers are Irrational? Select all that apply.
A. √36
B. √15
C. √64
D. √57
E. √8
Answer:
B, D and E.
Step-by-step explanation:
These numbers are irrational because their exact values can only be represented by those square roots. If you try to "do the maths", it will be something like:
\sqrt{15} = 3.872983...\\
\sqrt{57} = 7.549834...\\
\sqrt{8} = 2.828427...
Answer:
A,D and E and this is the correct answer
BRAINLIEST AND 25 POINTSLinda has two glasses of pineapple juice. Glass A has 60 grams of juice at 30 °C. Glass B has 60 grams of juice at 40 °C.
Which of the following steps will make the kinetic energy of the molecules of the juice in both glasses equal?
Add 15 grams of juice at 30 °C to Glass A
Add 15 grams of juice at 40 °C to Glass B
Decrease the temperature of juice in Glass B by 10 °C
Increase the temperature of juice in Glass A by 30 °C
i know it aint math but no one else is in the other subjects
Answer:
C
Step-by-step explanation:
Simple physics
Answer:
try decrease the temperature of juice in glass B by 10 °C
Step-by-step explanation:
the only one that makes sense to me... sorry if im wrong
if the box is to hold 448 cm3, what mathematical sentence would represent the given situation?
Answer:
Volume of the box is 448 cm^3.
Step-by-step explanation:
It is given that a box is to hold 448 cm^3.
Mathematically we could say , the volume of the box is 448 cubic centimeters.
