Answers
Answer:
(-2,1)
Step-by-step explanation:
Answer:
-2/1
Step-by-step explanation:
Related Questions
Prove that: (Sec A- cosec A)(1+ tan A+cot A) = tan A× sec A - cot A × cosec A
Answers
Answer:
Step-by-step explanation:
[tex](sec A-cosecA)(1+tanA+cotA)=tanAsecA-cotAcosecA[/tex]
we take the LHS so here goes,
[tex](sec A-cosecA)(1+tanA+cotA)=tanAsecA-cotAcosecA\\(\frac{1}{cosA} -\frac{1}{sinA})(1+\frac{sinA}{cosA}+\frac{cosA}{sinA})\\\\(\frac{sinA-cosA}{sinAcosA})(\frac{sinAcosA+sin^2A+cos^2A}{sinAcosA})\\[/tex]
since , [tex]sin^2A+cos^2A=1[/tex]
the identity becomes,
[tex](\frac{sinA-cosA}{sinAcosA})(\frac{1+sinAcosA}{sinAcosA})\\\\(\frac{sinA+sin^2AcosA-cosA-cos^2AsinA}{sin^2Acos^2A})\\\\[/tex]
now, we know,
[tex]sin^2A=1-cos^2A[/tex] and [tex]cos^2A=1-sin^2A[/tex]
the identity becomes,
[tex](\frac{sinA+(1-cos^2A)cosA-cosA-(1-sin^2A)sinA}{sin^2Acos^2A} )\\\\[/tex]
[tex](\frac{sinA+cosA-cos^3A-cosA-sinA+sin^3A}{sin^2Acos^2A})[/tex]
sin A and cos A cancel out it becomes zero
[tex]\frac{sin^3A-cos^3A}{sin^2Acos^2A} \\\\[/tex]
Splitting the denominator the identity becomes
[tex]\frac{sin^3A}{sin^2Acos^2A}-\frac{cos^3A}{sin^2Acos^2A} \\\\\frac{sinA}{cos^2A} - \frac{cosA}{sin^2A} \\\\\frac{sinA}{cosA}(\frac{1}{cosA})-\frac{cosA}{sinA}(\frac{1}{sinA})\\\\[/tex]
Hence,
[tex]tanAsecA-cotAcosecA[/tex]
what answee is it?? :))))
Answers
Step-by-step explanation:
The answer is C
We can easily eliminate B and D since Ms. Macdonald isn't starting with 3 rabbits.
We can also eliminate choice A, because 5 to the 3rd power isn't 15.
5 to the 3rd power is 125, therefore the choice is C
A linear function is a function in which the dependent variable changes at a constant rate relative to the independent variable. Based on this assumption, determine whether each relationship below can be modeled by a linear function. Select Yes or No for each situation. Yes No The total number of tires, T, on c cars. C The cost, C. in dollars, of p pounds of tangerines 0 O The temperature, F, after m minutes of a pie taken out of the oven. The value, V, in dollars, of a bank account eaming compound interest after t years. OO
Answers
yes
no
no
yes
hope it help!!!
Yes, no, no, yes I believe
Write each equations in standard form.
10.y + 1 =X+2
13.y 4=-K-1)
Answers
Answer:
10. -x + y = 1.
Step-by-step explanation:
10. y + 1 = x + 2
y - x = 2 - 1
-x + y = 1.
For her birthday, Samantha received a gift card, with a value of $200, to a department store. She wants to purchase at least 5 articles of clothing for work. At the store, sweaters cost $22.49 each and dress pants cost $34.99 each. If Samantha does not spend more than the amount on the gift card, which system of inequalities could be used to determine the number of sweaters, s, and the number of dress pants, p, she can buy?
Answers
Answer:
The system of inequalities are;
p + s ≥ 5
22.49s + 34.99p ≤ 200
Where P represents number of dress pants and s represents the number of sweaters
Step-by-step explanation:
Here, we want to write system of inequalities
Let the number of sweaters be s and the number of pants be p
She wants to purchase at least 5 items
When we have at least, it means that it might be greater than or equal to that value
Thus;
p + s ≥ 5
Secondly, at most the amount to be spent is the value on the gift card which is 200
Thus;
we have;
22.49s + 34.99d ≤ 200
combine like terms:
Answers
Answer:
Step-by-step explanation:
WORTH ALOT OF POINTS!!
Which of the following amounts could be represented by the whole tape diagram?
Answers
Answer:
B is the answer!!!
Step-by-step explanation:
the tape diagram shows this
Answer:
New salary after 30% raise , Ketchup in a bottle containing 30% more ketchup
Step-by-step explanation:
SOMEONE PLEASE HELP ME FOR BRAINLY IF CORRECT
Paula refills the flour bin after it has been empty for a
while. She pours in the flour at a constant rate. She stops
pouring flour when the bin is full.
Which graph could represent this scenario?
Answers
Answer:
A
Step-by-step explanation:
Its A which ever is the one that is full
if 1 case of 500 20oz. cups cost 48.38 how much does one cup cost (show all work)
Answers
Answer:
Step-by-step explanation:
if 500 cups costs 48.38
than one cup will cost
48.38/500=0.096 cents per cup
A study by the department of education of a certain state was trying to determine the mean SAT scores of the graduating high school seniors. The study examined the scores of a random sample of 238 graduating seniors and found the mean score to be 493 with a standard deviation of 97. Calculate the margin of error using the given formula. How could the results of the survey be made more accurate?
Answers
Answer:
±12.323
Step-by-step explanation:
A study by the department of education of a certain state was trying to determine the mean SAT scores of the graduating high school seniors. The study examined the scores of a random sample of 238 graduating seniors and found the mean score to be 493 with a standard deviation of 97. Calculate the margin of error using the given formula. How could the results of the survey be made more accurate?
The formula for margin of Error =
±z × Standard deviation/√n
We are not given the confidence interval but let us assume the confidence interval = 95%
Hence:
z score for 95% confidence interval = 1.96
Standard deviation = 97
n = random number of samples = 238
Margin of Error = ± 1.96 × 97/√238
Margin of Error = ±12.323
The margin of error using the given formula will be ±12.323.
What is the error?An error is a mistaken or erroneous action. In some contexts, an error is interchangeable with a mistake.
The discrepancy between the calculated value and the correct value is referred to as an "error" in statistics.
Given data;
Confidence interval = 95%
z score for 95% confidence interval = 1.96
Standard deviation = 97
n is a random number of samples = 238
The margin of Error is found as;
E =±z × Standard deviation/√n
[tex]\rm E= +z \times \frac{\sigma}{\sqrt{n} }[/tex]
[tex]\rm E=\±1.96 \times \frac{97}{\sqrt{238} }\\\\ E=\±12.323 \[/tex]
Hence,the margin of error using the given formula will be ±12.323.
To learn more about the error refer to the link;
https://brainly.com/question/13286220
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The distance traveled can be calculated using the formula D=s.t where s is the speed
and t is the total time. If a bus traveled 45 km/h for 5 hours, how far did the bus travel?
Answers
Answer:
225 km
Step-by-step explanation:
D=S*T
D=45*5=225
Have a nice Day , Hope this helped you I would appreciate it if you could mark my answer brainliest
Raul Buys a fancy new TV on sale for $600 the original price of the TV was $899 what is the percent savings
Answers
Answer:
33.26% savings.
Construct an equilateral triangle of side 7cm and construct circumcircle.
Can anyone help me with this , I have to sumbit my PROJECT.
THanks
Answers
Answer:
To do this, all you need is to draw triangle with each side being 7 cm, and a circle that intersects all three of its corners.
Step-by-step explanation:
With a ruler and a pencil, draw a 7cm line.With a compass set to a radius of 7cm draw an arc centered around the right end of the line.With the same compass, still at 7cm, draw an arc centered around the left end of the line.These two arcs will intersect on either side of the line (you only need one side, so you only need a small arc in the right place, roughly where you think the third point if the triangle is.Where those arcs intersect is the third point on your triangle. Mark that, and then trace two lines from that point to either end of the line segment you started with.You now have an equilateral triangle with 7cm sides. Next you need to draw the circle
Measure the halfway point on two of your three lines.Draw a line from that each of those halfway points to the opposite corner. The new lines you're drawing will be perpendicular to the edge your measuring against.You have now drawn two line segments, and they intersect in the center of the circle. Now take your compass and set its radius to the distance from that center point to one of the three corner points.Centered on that middle point, trace a circle with the selected radius.And you're done!
Helpppppppppppppppppp
Answers
Y= 4+ 0
Y=4
Jane said that 6(64) = 6(50) + 6(14). Is she correct? Use the Distributive Property to explain your answer.
Answers
Answer:
Yes.
Step-by-step explanation:
6(64) = 6(50+14)
Using the Distributive Property, 6 needs to be multiplied by both 50 and 14.
6(50+14) = 6(50) + 6(14)
Thus, Jane is correct.
8 1/4 x 1 7/11 as a whole number
Answers
Answer:
(I don't know what you mean) but the answer to that question would be 13.5 or 13 and a half
Step-by-step explanation:
Construct a triangle ABC, right angled at B and the sides BC = 4cm and AC = 5cm. Measure side AB.
Answers
Answer:
3
Step-by-step explanation:
WILL GIVE BRAINLIEST ! A marble is picked at random.Without putting the first marble back,a second marble is picked at random find the probability that the fist marble picked is green and the second marble is picked red write your result as a percentage
Answers
Step-by-step explanation:
The percentage is 1/2 * 2/5 = 1/5 = 20%.
The probability that the first marble picked is green, and the second marble is picked red is 20%
What is probability?A probability is a number that reflects the chance or likelihood that a particular event will occur.
Probabilities can be expressed as proportions that range from 0 to 1, and they can also be expressed as percentages ranging from 0% to 100%.
Given that, there are six marbles in total, 3 are green, 2 are red and one is brown,
we need to find the probability that the first marble picked is green, and the second marble is picked red,
So, P(E) = favorable outcome / total outcome
Therefore, the probability that the first marble picked is green, and the second marble is picked red = 3/6 x 2/5 = 6/30 = 1/5 = 20%
Hence, the probability that the first marble picked is green, and the second marble is picked red is 20%
Learn more about probability click;
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Coach Teague is making breakfast for his 6 family members. He is making bacon and omelets. Each omelet needs 3 eggs, how many eggs does he need?
Answers
Answer:
18 eggs
Step-by-step explanation:
6 family member has 1 omelet, each omelet needs 3 eggs, 6 x 3 = 18 eggs :D
Henry drank 2/5 of his water bottle. If he drank 3 cups of water, what was the total amount of cups of water in his water bottle? Solve with a model and a full sentence answer.
Answers
Answer:
The amount of cups of water in the water bottle is 7.5.
Step-by-step explanation:
Given that Henry drank 2/5 of his bottle of water, and those 2/5 were distributed in 3 glasses, to determine the total amount of glasses that go into the bottle it is necessary to perform the following calculation:
2/5 X = 3
1/5 X = 1.5
X = 1.5 x 5
X = 7.5
Therefore, the bottle fits 7 and a half glasses of water.
Sheldon can either take a train or an airplane to San Francisco. If the train takes 11 hours and 23 minutes and the plane takes 2 hours and 44 minutes, how much time would he save taking an airplane? ( __ hours & __ minutes)
Sheldon can either take a train or an airplane to San Francisco. If the train takes 11 hours and 23 minutes and the plane takes 2 hours and 44 minutes, how much time would he save taking an airplane? ( __ hours & __ minutes)
Answers
Answer: he would save (9) hours (44) minutes on an airplane.
Step-by-step explanation: its easy just subtract 11 &2 & you'll get 9 hours but you don't do anything with the 44 & 23 all you have to do is put down 9 - hours & 44 - minutes. it's a piece of cakeplease rate me with 5 stars & thank me & hit the little crown please and thank you and if you want to be friends we can just friend me please and thank you and your welcome!!!!
I ant get any wrong please help
Answers
Answer:
b
Step-by-step explanation:
whats the LCM of 5 and 60?
Answers
Hope this helps!
Can somebody please help me with this question
Answers
Answer:
B
Step-by-step explanation:
In 1867, the United States purchased Alaska from Russia. Alaska is about 5.9 × 105 square miles. The United States paid about $12.20 per square mile. Approximately how much did the United States pay Russia for Alaska? Complete the steps to answer the question. 1. Write the expression: (5.9 × 105)(12.2) 2. Multiply the decimal values: × 105 3. Write in scientific notation: × The United States paid Russia approximately for Alaska.
Answers
Answer:
$7.198 * 10^6
Step-by-step explanation:
Given that :
Total Area of Alaska = 5.9 * 10^5 mi²
Cost of Alaska per square mile = $12.20
Total amount paid to purchase Alaska:
(Total area in square miles * Cost per square mile)
(5.9 × 10^5) * $12.20
(5.9*12.20) * 10^5
71.98 * 10^5 dollars
= $7.198 * 10^6
Hence, amount the United States paid Russia for the purchase of Alaska is approximately $7.198 * 10^6
Answer:
1. Write the expression: (5.9 × 105)(12.2)
2. Multiply the decimal values:
✔ 71.98
× 105
3. Write in scientific notation:
✔ 7.198
×
✔ 10 to the sixth power
The United States paid Russia approximately
✔ $7,200,000
for Alaska.
Step-by-step explanation:
Does this table represent a function? Why or why not?
x
2
4
6
8
10
y
1
3
3
4
6
A. Yes, because every x-value corresponds to exactly one y-value.
B. No, because one x-value corresponds to two different y-values.
C. No, because two of the y-values are the same.
D. Yes, because all of the x-values correspond to one or more
y-values.
Answers
In order to be a function every x value can only have 1 y value
Please state reason as well....
Is it possible to construct a quadrilateral from any 4 given measurements of its sides? State a reason for your answer.
Answers
Answer:
It is NOT possible to construct a quadrilateral from any 4 given measurements of its sides.
Step-by-step explanation:
We know that the Quadrilateral is a 2D closed figure with four sides.The Quadrilateral has four vertices or corners.We are asked to tell whether it is possible to construct a quadrilateral from any 4 given measurements of its sides.
Well, in order to construct a quadrilateral from any 4 given measurements of its sides, we need at least five dimensions.
With only 4 given measurements of its sides, we won't know any of its angles.
Thus, it is NOT possible to construct a quadrilateral from any 4 given measurements of its sides.
-2(x - 5) < 8 what is x
Answers
Answer:
The answer is X > 1 hope that helps!
Step-by-step explanation:
Please help I will mark brainliest
Answers
Hope this helps you out with your homework!
Answer: C
Step-by-step explanation:
$3.50/lb is the unit weight. Since your # of lbs is x it would be 3.50x. Simple
Have a nice day :)
determine whether the following two lines are parallel perpendicular coincident or intersecting y=-4x+2 and 16y=4x+8
Answers
Answer:
i dont know
Step-by-step explanation:
but i wish you luck
