Find all angles, 0≤θ<360, that satisfy the equation below, to the nearest 10th of a degree. 4tan^2 θ+tanθ=−4tanθ−1

Answers

Answer 1

Answer:

135 and 315degrees

Step-by-step explanation:

Given the expression

4tan²θ+tanθ=−4tanθ−1

Equate to zero

4tan²θ+tanθ+4tanθ+1 = 0

4tan²θ+5tanθ+1 = 0

Let x = tanθ

4x²+5x+1 = 0

Factorize;

4x²+4x+x+1 = 0

4x(x+1)+1(x+1) = 0

4x+1 = 0 and x+1 = 0

4x = -1 and x = -1

x = -1/4 and -1

Since x = tanθ

-1 =tanθ

θ = arctan(-1)

θ = -45degrees

Since tan is negative in the 2nd and fourth quadrant;

In the second quadrant

θ = 180 - 45 = 135degrees

In the fourth quadrant;

θ = 360 - 45 = 315degrees

Hence the required angles are 135 and 315degrees


Related Questions

How much would $500 invested at 6% interest compounded monthly be
worth after 5 years? Round your answer to the nearest cent.
int
A09) P(124
A. $512.63
B. $669.11
C. $674.43
D. $886.41

Answers

Answer:

$669

Step-by-step explanation:

Given data

Principal= $500

Rate= 6%

Time= 5 years

The compound interest formula is given as

A= P(1+r)^t

A=500(1+0.06)^5

A=500(1.06)^5

A=500*1.338

A=$669

Abigail buys two cartons of strawberries. One carton has 19 berries and the other carton has 26 berries. She wants to divide the berries into bags so there are exactly 6 berries in each bag. How many bags will have 6 berries?

Answers

Answer:

7.5 bag

Step-by-step explanation:

Carton #1: 19 berries

Carton #2: 26 berries

^^add them up together to get hte total amount of berries! 19 + 26 = 45

She has 45 berries in total, then you divid it by 6 aka the amount of berries she wants in each bag 45 ÷ 6 = 7.5

When she divids them up she has 7 bags with 6 berries in each and 1 bag with 3 berries.

what is the correct answer​

Answers

Answer:

the answer is D

Step-by-step explanation:

from :

Tan(60) = x/4 then X = Tan(60) × 4

X = 4×√3

What expression would be easier to simplify if you use the associative property to change the grouping?

A.[(-0.2)+(-0.6)]+1.7
B.(2+5/2)+(-1/2)
C.(60+40)+(-27)
D.6+[4/9+(-2/9)]

Answers

Answer:

B

Step-by-step explanation:

2+5/2 is hard to add since first you have to make 2 into a fraction with the denominator 2. If you use the associative property, you can just easily combine -1/2 and 5/2 without any converting into fractions

How many moles are in 30.0g of N2

Answers

Answer:1.0709

Step-by-step explanation:

Answer:

1

Step-by-step explanation:

To be very accurate 1.1

You roll a 6-sided die.
What is P(4)?
1/6 or 4/9 or 4/5 or 3/4

Answers

Answer:

1/6

Step-by-step explanation:

Because there is only a side that has the number 4 in a total of 6 sides

It’s will be 1/6 because it out of a change to get a 6 on a 6 sided die

The area of a rectangle is (x^3 - 5x^2 + 3x - 15), and the width of the rectangle is (X2 + 3). If area = length x width, what
is the length of the rectangle?

Answers

Given:

Area of a rectangle = [tex]x^3-5x^2+3x-15[/tex]

Width of rectangle = [tex]x^2+3[/tex]

To find:

The length of the rectangle.

Solution:

The area of a rectangle is:

[tex]A=l\times w[/tex]

Where, l is length and w is the width.

It is can be written as:

[tex]\dfrac{A}{w}=l[/tex]

[tex]l=\dfrac{A}{w}[/tex]

Putting [tex]A=x^3-5x^2+3x-15[/tex] and [tex]w=x^2+3[/tex], we get

[tex]l=\dfrac{x^3-5x^2+3x-15}{x^2+3}[/tex]

[tex]l=\dfrac{x^2(x-5)+3(x-5)}{x^2+3}[/tex]

[tex]l=\dfrac{(x^2+3)(x-5)}{x^2+3}[/tex]

[tex]l=x-5[/tex]

Therefore, the length of the rectangle is [tex]x-5[/tex].

Express 0.0003754 in scientific notation

Answers

Answer:

Scientific Notation: 3754 × [tex]10^{-4}[/tex]

Step-by-step explanation:

Have a great summer :)

Answer:

3.754 • 10^-4

Step-by-step explanation:

Put decimal point back until in front of a whole number( not zero ;D). So it would be 3.754 and since it was going left or backwards the exponent would be negative. Therefore, giving our answer!

Hope this helped, good luck! :)

Drag the tiles to the correct boxes to complete the pairs. Match the systems of equations with their solutions.

Answers

Answer:

See explanation for matching pairs

Step-by-step explanation:

Equations

(1)

[tex]x - y = 25[/tex]

[tex]2x + 3y = 180[/tex]  

(2)

[tex]2x - 3y = -5[/tex]

[tex]11x + y = 550[/tex]  

(3)

[tex]x - y = 19[/tex]

[tex]-12x + y = 168[/tex]

Solutions

[tex](-17,-36)[/tex]

[tex](47, 33)[/tex]

[tex](51, 26)[/tex]

Required

Match equations with solutions

(1) [tex]x - y = 25[/tex] and [tex]2x + 3y = 180[/tex]

Make x the subject in: [tex]x - y = 25[/tex]

[tex]x = 25 + y[/tex]

Substitute [tex]x = 25 + y[/tex] in [tex]2x + 3y = 180[/tex]

[tex]2(25 + y) + 3y = 180[/tex]

[tex]50 + 2y + 3y = 180[/tex]

[tex]50 + 5y = 180[/tex]

Collect like terms

[tex]5y = 180-50[/tex]

[tex]5y = 130[/tex]

Solve for y

[tex]y =26[/tex]

Recall that: [tex]x = 25 + y[/tex]

[tex]x = 25 + 26[/tex]

[tex]x = 51[/tex]

So:

[tex](x,y) = (51,26)[/tex]

(2)  [tex]2x - 3y = -5[/tex] and [tex]11x + y = 550[/tex]

Make y the subject in [tex]11x + y = 550[/tex]

[tex]y = 550 - 11x[/tex]

Substitute [tex]y = 550 - 11x[/tex] in [tex]2x - 3y = -5[/tex]

[tex]2x - 3(550 - 11x) = -5[/tex]

[tex]2x - 1650 + 33x = -5[/tex]

Collect like terms

[tex]2x + 33x = -5+1650[/tex]

[tex]35x = 1645[/tex]

Solve for x

[tex]x = 47[/tex]

Solve for y in [tex]y = 550 - 11x[/tex]

[tex]y = 550 - 11 * 47[/tex]

[tex]y = 550 - 517[/tex]

[tex]y = 33[/tex]

So:

[tex](x,y) = (47,33)[/tex]

(3)

[tex]x - y = 19[/tex]  and [tex]-12x + y = 168[/tex]

Make y the subject in [tex]-12x + y = 168[/tex]

[tex]y = 168 + 12x[/tex]

Substitute [tex]y = 168 + 12x[/tex] in [tex]x - y = 19[/tex]

[tex]x - 168 - 12x = 19[/tex]

Collect like terms

[tex]x -12x = 168 + 19[/tex]

[tex]-11x = 187[/tex]

Solve for x

[tex]x = -17[/tex]

Solve for y in [tex]y = 168 + 12x[/tex]

[tex]y =168-12 *17[/tex]

[tex]y =-36[/tex]

So:

[tex](x,y) = (-17,-36)[/tex]

Please help! Must get done ASAP!!!

^^

Answers

Answer:

No

No

Yes

Yes

Step-by-step explanation:

Try it.

Answer: 1st: No, 2nd: No, 3rd: Yes, 4th: Yes

Step-by-step explanation: You only flip the inequality when you divide a negative number on both sides. The only reason why you would divide would be to get the variable by itself -  in this case the coefficient would need to be negative. That only applies to the third and 4th equations.

please help ty !!! :)​

Answers

Answer: $9,240

Step-by-step explanation:

If the car was sold at 40% off,

That is 40/100=0.4

selling price=$6600

So, 40% of $6600= 0.4*$6600=$2640

this means that the seller deducted this amount from his cost price to sell it to you.

Therefore,original price he bought will be a sum of both,that is

the amount he sold to you + the amount he deducted =$6600+$2640=$9,240.

Therefore the original price is $9,240

hope it’s correct !

Answer:

Answer :-

(40/100) × X = 6600

X = (6600×100)/40

X = 16500$

Hope it helped :)

Please help kitty(
<3

Answers

Answer:

A. increasing curve

Step-by-step explanation:

exponential equations always have a curve, so you know it has to be the one about a curve.

3 1/2 + 7/15 multiply 1 1/4

Answers

Answer:

3 1/2 +7/15×11/4

7/2 +7/15×11/4

119/30×11/4

1309/120

Answer:

[tex]{ \tt{(3 \frac{1}{2} + \frac{7}{15} ) \times 1\frac{1}{4} }} \\ \\ = { \tt{ \frac{119}{30} \times \frac{5}{4} }} \\ \\ = 4 \frac{23}{24} [/tex]

A boy is twice as old as his sister who is x years old now. In 2 years, the boy will be

Answers

Answer and Step-by-step explanation:

2x + 2 is the answer.

If the boy is twice as old, and the sister's age is represented by x, then we multiply 2 to x to represent the boy's age.

Then we add 2 when 2 years pass by.

#teamtrees #PAW (Plant And Water)

it takes 2 1/2 cups of sugar to make 4 dozen sugar cookies. How much sugar is needed to make 120 sugar cookies

Answers

Answer:

6.25 cups of sugar

Step-by-step explanation:

Let's make a proportion expression:

2.5/48 = x/120

Let x be the amount of sugar needed to make 120 sugar cookies.

Cross multiply:

120*2.5=48x

48x=300

x=6.25

So, you would need 6 1/4 cups or 6.25 cups of sugar to make 120 sugar cookies.

Help With the answer Please
??????

Answers

Answer:

not sure

Step-by-step explanation:

Answer:

b) FIGURE A AND FIGURE B

Step-by-step explanation:

figure c has

all the sides equal so its not a rectangle

I really need help❤️

Answers

Answer:

about (-3,1.5)

Step-by-step explanation:

Hope this helps!

6 g of butter is used for making a cupcake. How many such cakes can be made by using 3 kg of butter?

Answers

Answer: 500

Step-by-step explanation:

Given

6 g butter is required to make a cupcake

If there is 3 kg butter

We know, 1 kg is equivalent to 1000 g i.e. 3 kg is 3000 gm

No of cup-cakes made

[tex]\Rightarrow \dfrac{3000}{6}=500\ \text{cupcakes}[/tex]

Yesterday, 37% of the drivers for Quinn's Taxi Service worked. At Bella's Taxi Express, 3 out of 10 drivers worked. Which taxi service had a greater percentage of its drivers working?

Answers

Answer:

Quinn's Taxi Service

Step-by-step explanation:

a) Yesterday, 37% of the drivers for Quinn's Taxi Service worked.

Hence, the percentage for Quinn's Taxi Service drivers that are working is 37%

b) At Bella's Taxi Express, 3 out of 10 drivers worked.

The percentage for Bella's Taxi drivers that are working is calculated as:

3/10 × 100

= 30%

Therefore, the taxi service that had a greater percentage of its drivers working is Quinn's Taxi Service with a high percentage of 37%

Find the volume of the cylinder.
Either enter an exact answer in terms of π or use 3.143.t, 14 for π.

Answers

Answer:

V = 75 pi

Step-by-step explanation:

We know the volume of a cylinder is given by

V = pi r^2 h where r is the radius and h is the height

V = pi ( 5)^2 (3)

V = pi (25)(3)

V = 75 pi

Answer:    75pi

===============================================

Work Shown:

r = 5 is the radius

h = 3 is the height

V = pi*r^2*h .... volume of a cylinder

V = pi*5^2*3

V = pi*25*3

V = pi*75

V = 75pi ..... exact volume in terms of pi

V = 75*3.14

V = 235.5

If you used the approximation pi = 3.14, then the approximate volume is about 235.5 cubic units. Use more decimal digits of pi to get a more accurate answer.

Note how the pi*r^2 portion represents the area of the circular base. So we can say

volume = (area of base)*(height)

What is the surface area of the cylinder if the height is 11in and the radius is 4in?

Answers

Answer:

Around 376.99

Step-by-step explanation:

the formula is 2πrh+2πr²

so if we plug in everything we get 2π(4)(11)+2π(4)²

When we simplify that, we would get 376.99

PLEASE SOMEONE HELP ME FIGURE OUT THESE 4 Ill give you brainiest!

Answers

Answer: 5. 83 1/3*pi, or 261.8 (approx.) 6. 2*pi, or 6.28 (approx.) 7. 42 2/3*pi or 134.04 (approx.) 8. 144*pi or 452.39 (approx.)

Step-by-step explanation:

Volume of a circular cone : pi*r^2*h/3

I applied the formula to find these answers

Help me please!!!!!!!!!!!!!

Answers

Answer:

The answer is 70 ways.

Step-by-step explanation:

8C4 = 70.

40320/576 is equal to 70.

There were 8 fewer boys than girls in Mr. Taylor’s Algebra class. If he had 40 pupils, how many were girls?

Answers

Answer:

There are 24 girls in the class.

Step-by-step explanation:

Write out the problem like this:

40 = (g-8)+(g)

40 is the total amount of students. (g) is the unknown number of girls in the class, and (g-8) is the amount of boys since there are 8 fewer boys than girls.

First, eliminate the parentheses.

40 = g - 8 + g

Next, combine like terms. Both g's are positive, to we get 2g

40 = g - 8 + g

40 = 2g - 8

Then, add 8 to both sides of the equation, because the 8 that was already present is negative and needs to be canceled out.

40 + 8 = 2g - 8 + 8

48 = 2g

Lastly, divide both sides by 2, so that the (g) is by itself.

40/2 = 24, 2g/2 = g

g=24

This can be tested as the correct answer by subtracting 8 from 24 to count the boys...

24 - 8 = 16

...and adding the two amounts together to get the total amount of students.

24 + 16 = 40

There are 24 girls in the class.

What would be your first step in solving for x in this problem. Please EXPLAIN in words?

Answers

Answer:

Step-by-step explanation: distribute the 1.5 and the 2

Answer:

hey you need to multiple the number behind the parentheses by the number into the parentheses, like 1.5×2x

the you put Xs on the left side of the = and the numbers on the right side

then you do the sentence and at the end you got the amount for x :)

what is the degree of polynomial x^2y^2+y^3+4?

Answers

Answer:

The degree of the polynomial ≈ 4

Step-by-step explanation:

The degree of a polynomial, is given by the highest value of the sum of the exponents (powers) of the of the variables (monomials) that are present in the polynomial expression

The given polynomial expression is x²·y² + y³ + 4

The sum of the exponents; 2 + 2 = 4, and 3

The sum of exponents 4 > 3

Therefore, the degree of the polynomial = 4.

Expand and simplify (x - 2)(x - 1)

Answers

Answer:

x^2 -3x+2

Step-by-step explanation:

(x - 2)(x - 1)

FOIL

first: x*x = x^2

outer: -1*x = -x

inner: -2*x =-2x

Last: -2*-1 =2

Add together

x^2 -x-2x+2

Combine like terms

x^2 -3x+2

[tex]\huge\textsf{Hey there!}[/tex]

[tex]\large\textsf{(x - 2)(x - 1)}[/tex]

[tex]\large\textsf{DISTRIBUTE}[/tex]

[tex]\large\textsf{x(x) + x(-1) - 2(x) -2(-1)}[/tex]

[tex]\large\textsf{x(x) = }\mathsf{\bf x^2}[/tex]

[tex]\large\textsf{x(-1) = -1(x) = \bf -1x}[/tex]

[tex]\large\textsf{-2(x) = \bf -2x}[/tex]

[tex]\large\textsf{-2(-1) = \bf 2}[/tex]

[tex]\mathsf{= \bf x^2 - 1x - 2x + 2}[/tex]

[tex]\large\textsf{COMBINE the LIKE TERMS}[/tex]

[tex]\mathsf{(-1x - 2x)}[/tex]

[tex]\mathsf{= \bf -3x}[/tex]

[tex]\large\textsf{SOLVE for the ANSWER:}[/tex]

[tex]\mathsf{x^2 - 3x + 2}[/tex]

[tex]\boxed{\boxed{\large\text{Answer: }\mathsf{\bf x^2 - 3x + 2}}}\huge\checkmark[/tex]

[tex]\large\text{Good luck on your assignment and enjoy your enjoy your day!}[/tex]

~[tex]\frak{Amphitrite1040:)}[/tex]

Below is a list of numbers. Use them to answer question 3.
2, 19, 31, 43, 59, 67
Question 3*
What type of numbers are shown?
A
B.
C.
composite numbers
even numbers
odd numbers
prime numbers
D.

Answers

Answer:

prime numbers

Step-by-step explanation:

not composite since,example, 2 is prime

not even since,example, 19 is odd

not odd since,example, 2 is even

Answer:

the answer is

prime numbers.

Given right triangle ABC with altitude BD drawn to hypotenuse AC. If
AC 18 and DC · 15, what is the length of BC in simplest radical
form?

Answers

The length will be 3 because of the altitude

8(2 + x) = 3x + 16 + 5x

Answers

Answer:

x = 0

Step-by-step explanation:

8(2 + x) = 3x + 16 + 5x

=> 16 + 8x = 3x + 16 + 5x

=> 8x - 3x - 5x = 16 - 16

=> 0x = 0

=> x = 0 (Ans)

Answer:0

Step-by-step explanation:

everything cancels out

Other Questions
According to the cognitive description of classical conditioning -is the key to process True/ false A rhetorical question can be an effective way to begin a speech if it is a good question and captures the audience attention. Can you please answer these im really stuck! pls help with both of them will give brainliest and everything Indicate whether the following statements are true or false:a) Viruses protection programs only scan a computer's data for harmful viruses. True or False? b) Software piracy is the authorised distribution and use of computer programs. True or False?c) An individual has no right to examine the contents of any personal record representing him/her. True or False? d) Information should not be held for longer than necessary. True or False? e) The privacy of the individual should be protected. True or False? In which underlined adjective clause is the relative pronoun used as the object of a preposition?a The part of Alaska that is within the Arctic Circle is cold most of the year.b The explorer whom I met last year has never been to the North Pole.c The climate is one in which little foliage can grow.d I saw a dog whose sled left without him. Which of the following was NOT part of the Homestead Act of 1862?a)The one making the claim had to be 18 years old.b)The one making the claim had to plant crops.c)The one making the claim had to build a home.d)The one making the claim had to live on the land for five years. Kelly collected $15, $15, $25, and $29 in the last four donations. What is themode of these donations?A. $15B.$20C. No mode 416Find the exact value of x.= If someone were to have 300 feet of fencing, what is the maximum area they can enclose? The smallest piece of information a computer can store is URGENT PLZ HELP: Graph y = tanx for -pi/4 x x/4.What is the range? Provide step-by-step instructions for David, the boy in the orange on the left side of the second row, to retrieve the globe from the teachers desk. Assume he is a robot that will only do exactly what you tell him using commands like step or turn left. We will share one or more classroom responses. A semi-circle sits on top of a rectangle to form the figure below. Find its area and perimeter. Use 3.14 for Kenna's bedroom is 12 feet long by 8 feet long. Her parents have agreed to buy new carpet for the entire bedroom.The carpet costs $15 per square meter. What will be the total cost of the new carpet? 1 foot = 0.305 meterA. $439.20B. $54.90C. $133.96D. $91.50 cul es el vocabulario de Mesopotamia How do maintain the farm business Write me a poem about evolution and natural selection On January 1, a machine with a useful life of 5 years and a salvage value of $30000 was purchased for $170000. What is the depreciation expense for year 2 under straight-line depreciation Answer the following.A bag contains, 4, green balls 3 red balls, 6 yelow and 5 pink balls. A ball isselected at random and not relased. The ball is green. What is the probablyof selecting another green be?Express the answer as a frection |Engress the answer as a decimal to three deomal placesELess this answer as a percentage to the nearest Wacle number