Solve the trigonometric equation for all values 0 < x ≤ 2.
sec 4x – 1=0

Answers

Answer 1

Answer:

x=1/4

Step-by-step explanation:

4x - 1 = 0 /+1

4x = 1 /:4

x= 1/4


Related Questions

Cost price= $350 and selling price= $400. find the profit percent.​

Answers

Given:CP= $350SP= $400Note that:CP= Cost Price SP= Selling Price Solution:

[tex]\large\boxed {Formula:Profit\% = \frac{(SP - CP)}{CP} \times 100}[/tex]

First, we'll have to deduct the cost price (350) from the selling price (400).

[tex]400 - 350[/tex]

[tex] = 50[/tex]

Now, we'll have to divide the deducted amount (50) by the cost price (350) and multiply by 100.

[tex] \frac{50}{350} \times 100[/tex]

[tex] = 14.28571429 \: \%[/tex]

= 14.3%

Hence, the profit is 14.3%

400-350/350*100

=14.3%

Yo last one c'monnn pls someone!!

Answers

Answer:

a + (-c),  b,  c - (-b)

Step-by-step explanation:

First, identify the values of each point.

a = -1

b = 2

c = 3

Now, we can solve for the problems listed below the number line. We already know b = 2, so we don't need to solve for that one.

c - (-b) = 3 - (-2)

3 - (-2) = 3 + 2

= 5

--------------------------

a + (-c) = -1 + (-3)

-1 + (-3) = -1 -3

= -4

Now we can list the choices in order from least to greatest.

-4, 2, 5

aka; a + (-c),  b,  c - (-b)

hope this helps!

(Essay Worth 10 points) Below are the data collected from two random samples of 500 American students on the number of hours they spend in school per day (rounded to the nearest hour):
Meg concludes that students spend a mean of 7 hours in school each day. Tara thinks the mean is 6 hours. Who is correct—Meg or Tara? Explain your answer in two or three sentences. Make sure to use facts to support your answer.

Answers

The claim of Tara is correct about who thinks the mean of the students is 6 hours in school each day.

What is mean of the data set?

The mean of the data is the average value of the given data. The mean of the data is the ratio of the sum of all the values of data to the total number of values of data.

The data which is collected from two random samples of a total 500 American students on the number of hours spend in school per day.

The mean of the data from sample A and B is,

[tex]\text{Mean}=\dfrac{4(70+80)+5(100+90)+6(125+120)+7(135+125)+8(70+85)}{70+80+100+90+125+120+135+125+70+85}\\\text{Mean}=\dfrac{6080}{1000}\\\text{Mean}=6.08[/tex]

The mean is approx 6 hours in school each day.

Now, Meg concludes that mean of students is 7 hours in school each day while Tara thinks the mean is 6 hours.

Thus, the claim of Tara is correct about who thinks the mean of the students is 6 hours in school each day.

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Mrs. Lee just bought a new rug. The rug is 7 feet long and 8 feet wide. What is the area of her rug?

Answers

We can find a rectangular area by multiplying the length and width of the rectangle that encloses it. Here,

7ft * 8ft = 56 ft²

Evaluate the following expression.
4+24

Answers

you just add them so basically it’s 28 ?
All you do is count up 4 from 24 so the answer is 28

Nine seconds elapsed from the time Mark saw the lightning until he heard the thunder. The lightning was about how many kilometers from Mark? (Sound travels about 331 meters per second in air.)

Answers

The lighting was about 2.979 kilometers away from Mark

Complete the equivalent ratio diagram to find cheese stick

Answers

Answer:

The blank on the top is 0.31 because that is what you multiply 80 by

The blank in the middle is 24.8 because that's what you get when you multiply 80 by 0.31

The blank on the bottom is 0.31 because that is what you multiply 80 by

Step-by-step explanation:

Use proportions to solve

80/100 = x / 31

80*31 = 100x

2480 = 100x

x = 24.8

Plot the zeros of this function:
f(x)=(x-1)(x-7)

Answers

Answer:

The zeros of this function are x=(1,7)

Step-by-step explanation:

(1,7) is the answer to the question

A square has a perimeter of 144. what is the length of each side?

Answers

[tex]~~~~~~~~\text{Perimeter of square} = 144\\\\\implies 4 \times \text{Side} = 144\\\\\implies \text{Side} = \dfrac{144}4\\\\\implies \text{Side} = 36\\\\\text{Hence the length of each side is 36 units.}[/tex]

Answer:

36

Step-by-step explanation:

In a Square,

perimeter (p) = 144

Length of side (L) = ?

we know,

p=4*L

144 = 4 *L

L = 144/4

L = 36

Since, All side of Square are equal . so,the length of each side is 36.

Note : you hadn't give unit in your question .

Which equation represents a circle that contains the point (–2, 8) and has a center at (4, 0)? distance formula: startroot (x 2 minus x 1) squared (y 2 minus y 1) squared endroot (x – 4)2 y2 = 100 (x – 4)2 y2 = 10 x2 (y – 4)² = 10 x2 (y – 4)² = 100

Answers

The equation of a circle that contains the point (–2, 8) and has a center at (4, 0) is (x - 4)² + y² = 10²

What is an equation?

An equation is an expression that shows the relationship between two or more variables and numbers.

The circle contains the point (–2, 8) and has a center at (4, 0), hence:

[tex]radius=\sqrt{(0-8)^2+(4-(-2))^2}=10\ units[/tex]

The equation is:

(x - 4)² + (y - 0)² = 10²

(x - 4)² + y² = 10²

The equation of a circle that contains the point (–2, 8) and has a center at (4, 0) is (x - 4)² + y² = 10²

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Answer:

A

Step-by-step explanation:

the first one is the answer

Suppose that scores on a knowledge test are normally distributed with a mean of 60 anda standard deviation of 4.3. Scores on an aptitude test are normally distributed with a mean of 110 and a standard deviation of 7.1 Boris scored a 67 on the knowledge test and Callie scored 119 on the aptitude test. (a) Calculate the z-score for Boris. Round to the nearest hundredth. Show your work (b) Calculate the z-score for Callie. Round to the nearest hundredth. Show your work. (c) Who did relatively better on their test, Boris or Callie? Use the meaning of z-scores to explain​

Answers

The Z-score for Boris is 1.627, and the Z-score value for the Callie is 1.267, Boris scored higher relatively.

What is Z-test?

The Z test is a parametric procedure that is used on data that is dispersed in a normal fashion. For testing hypotheses, the z test can be used on one sample, two samples, or proportions. When the population variance is known, it analyzes if the means of two big groups are dissimilar.

We know the formula for the Z-test:

[tex]\rm Z = \dfrac{X-\mu}{\sigma}[/tex]

(a) For Boris:

[tex]\rm Z = \dfrac{67-60}{4.3}[/tex]

Z = 1.627

(b) For Callie:

[tex]\rm Z = \dfrac{119-110}{7.1}[/tex]

Z = 1.267

(c) Since the measures of two different data have been set to one measure and the value of the Z-score for Boris is higher relative to the Z-score value of Callie so Boris scored higher relatively.

Thus, the Z-score for Boris is 1.627, and the Z-score value for the Callie is 1.267, Boris scored higher relatively.

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Please Answer This Ixl Asap!

Answers

Answer:

Perimeter = 90

Step-by-step explanation:

We're going to start with HI and go around the circle (and triangle, clockwise) see image. HI is 11. From H to G, then also has to be 11.

Subtract 26 - 11 to find LG. LG is 15.

If LG is 15, then LK is also 15. Subtract 34 - 15 to find JK.

JK is 19, so JI is also 19.

Two sides of the triangle are 34 and 26. The other side is 19+11=30.

Perimeter = 34+26+30

= 90

PLEASE HELP!!!!!! ASAP

Answers

Answer:

It's b

Step-by-step explanation:

6) write 36 + 60 as a product using the gcf as one of the factors.
36 + 60 =
?
?
+ ?

Answers

the answer to that is: 12(3+5)

help math grade 8 find the derivatives

Answers

Answer:

1. 7x^6

2. 25x^4

3. -3x^-4

4. -4x^-3

5. 20x

Step-by-step explanation:

Multiply the power by the coefficient, answer is your new coefficient. then reduce the power by 1.

What is the value of e?

A 32

B 238

C 58

D 122

Answers

Answer:
C
Explanation:

The time, in seconds, that it takes a pendulum to swing back and forth is modeled by the equation below. f (l) = 2 pi startroot startfraction l over 32 endfraction endroot, where l is the length of the pendulum in feet what is the approximate length of a pendulum that takes 2.4 pi seconds to swing back and forth? 1.72 ft 3.05 ft 38.40 ft 46.08 ft

Answers

Considering the given equation for the time, it is found that the length of the pendulum in this problem is of 38.40 ft.

What is the equation for the time it takes for the pendulum to swing back and forth?

The equation is given as follows:

[tex]f(l) = 2\pi\frac{l}{32}[/tex]

In which l is the length of the pendulum.

In this problem, we have that [tex]f(l) = 2.4\pi[/tex], hence:

[tex]f(l) = 2\pi\frac{l}{32}[/tex]

[tex]2.4\pi = 2\pi\frac{l}{32}[/tex]

l = 32 x 1.2

l = 38.4 ft.

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Answer:

c

Step-by-step explanation:

just did it


A bus travels 9 miles north
and 4 miles west from its
original location.


How far is the bus from its
original location?

Answers

Answer:

3 miles?

Step-by-step explanation:

the answer would be 13 miles!

Solve for x. Round to the nearest tenth, if necessary.

Answers

Answer:

x = 14

Step-by-step explanation.

First I would use sine to find x's value. So ----> sin(30) = 7/x ----> x sin(30) = 7 ----> x = 7/sin(30) = 14.

You Can also find that x is equal to 14 by applying the 30, 60, 90, triangle rule. Becuase '7' opposes the 30 degree angle it is 1/2 the hypotenuse, if thats the case just multiply the 7 by 2 and you have the hypotenuse length.

please help! im a bit confused on this

Answers

Ok, here’s what to do.
In 2x + 3, highlight x yellow, 3 pink, and 2x green.

In 4xy - 2x, highlight xy and x yellow, and 4xy and 2x green.

In 12f - 12g, highlight f and g yellow, and highlight 12f and 12g green.

In g + 200, highlight g yellow, and highlight 200 pink.

In 3p^3 + 4q, highlight p and q yellow, and highlight 3p and 4q green.

what is the slope of (–4, 2) and (5, 6)?

Answers

up 1 over +2 if your cords are (-4,2) and (5,6)

A Crime scene investigator arrived at an auto accident to collect information. A car had hit a pedestrian sending a box he was carrying into the air. Luckily, the pedestrian was unharmed. In order to determine the speed the car was travelling at impact, the investigator needs to find out how high the box went into the air. Here aare the notes that he took from the scene. A 5 foot tall witness said that he saw the box fly up just above a tree next to where the accident happened. He was standing 25 feet from a tree. The angle of elevation as the witness looked up at the tree was 45. Determine the height of the tree, which will tell you the height the box flew into the air.

Answers

Answer:

no the height of the tree doesnt determine the heiht of the box, thatd be a pretty large box if so

If a fair die is rolled 7 times, what is the probability, rounded to the nearest thousandth, of getting at least 4 threes?

Answers

Answer:

0.904

EX ;  Each time the die is rolled, there are only two possible outcomes, either the result is a 2, or it is not. The result on a roll is independent of any other roll, which means that the binomial distribution is used to solve this question.

Binomial probability distribution

- The parameters are:

x is the number of successes.

n is the number of trials.

p is the probability of a success on a single trial.

In this problem:

- The die is rolled 7 times, hence .

One out of the 6 sides is a 2, hence

- Then:

0.905 = 90.5% probability of getting at most 2 twos.


i don’t understand how to find x

Answers

C, bc you add up all x’s, which give you 4x. Then you add 0.5,1,1.5 together, which is 3.

what’s the answer to this problem , figure out the area and perimeter of this triangle

Answers

Answer:

                Area = 67.5 m²

        Perimeter = 69 m

Step-by-step explanation:

Area of triangle:

   b = 27 m  & h = 5 m

     [tex]\sf \boxed{\text{\bf Area of triangle =$\dfrac{1}{2}bh$}}[/tex]

                                   [tex]\sf = \dfrac{1}{2}*27*5\\\\ =\dfrac{135}{2}\\\\= 67.5 \ m^2[/tex]

Perimeter of triangle:

       Perimeter = sum of all sides

                         = 27 + 34 + 8

                         = 69 m

A bookshelf can hold 16 pounds. each book weighs 8 ounces. how many books can the shelf hold?

Answers

Answer: 32 books

Explanation: 1 lb = 16 oz, and you know that 1 book = 8 oz. 2 books = 16 oz (1 lb). 2 x 16 = 32 books

need help with all of these questions you see on the top. there the red squares. please someone smart. this is one of the problems I need to finish this tonight​

Answers

Answer:

254.5 ft^3

Step-by-step explanation:

The volume of a cylinder is the area of the base times its height. To find the area of the base, since it is a circle, you would use the area formula of a circle([tex]\pi r^{2}[/tex] where r is the radius). So, the circle would have an area of 81 π. Now, multiplying this by the height, you get the volume. Since the height is just 1, the volume would be 81π which is 254.469004941. This rounded to the nearest tenth is 254.5.

Answer: 254.3 ft^3

Step-by-Step Explanation:

Height (h) = 1 ft
Radius (r) = 9 ft
Pi (π) = 3.14

Volume of Cylinder = πr^2h

Therefore,
=> πr^2h
= π * r * r * h
= 3.14 * 9 * 9 * 1
= 28.26 * 9 * 1
= 254.34 * 1
= 254.34

Rounding off to nearest 10th = 254.3
Volume of Cylinder = 254.3 ft^3

what is x+x+x+x+x+x+x+x+x+x+b+b+b+b+3=

Answers

Answer:

10x+4b+3

Step-by-step explanation:

x+x+x+x+x+x+x+x+x+x+b+b+b+b+3

There are 10 x

4 b

and one number

10x+4b+3

Answer:

10x+4b+3

Step-by-step explanation:

x+x+x+x+x+x+x+x+x+x+b+b+b+b+3

So when we add them we get 10x and 4b, which makes the equation

=> 10x+4b+3

What number of cakes sold is an outlier

Answers

Answer:

9

Step-by-step explanation:

it is the odd one out, also because it is spread away from the other data points

Question 7 (1 point)
What is the value of "b" in the following quadratic? (Make sure the equation is in
standard form: ax^2 + bx+c=0)
4x^2 = 36

Answers

Answer:

0

Step-by-step explanation:

4x²=36

=> 4x²+0x-36=0

if we look at the standard form

before the x is b I the standard form and in the question 0 is before the x because their isn't an x. this makes a= 4, b=0 and c=-36

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