evaluate sin(Tan^-10)

Answer:

x^2 / 25 + y^2 / 9 = 1

Step-by-step explanation:

The major axis is along the x axis and the minor axis is on the y axis.

Major axis = 2a =  5--5 =10 so a = 5 and a^2 = 25.

Similarly b^2 = 3^2 = 9.

Answer:

[tex]\frac{x^2}{25}+\frac{y^2}{9}=1[/tex]

Step-by-step explanation:

Equation of ellipse is of form [tex]\frac{x^2}{a^2}+\frac{y^2}{b^2}=1[/tex] where [tex](a,0) , (-a,0)[/tex] are the x-intercepts and [tex](0,b) , (0,-b)[/tex] are the y-intercepts . If [tex]a > b[/tex] then it is a horizontal ellipse and if [tex]a < b[/tex] then it is a vertical ellipse .

For horizontal axis ,

Here, [tex](a,0) , (-a,0)[/tex] are known as the vertices of ellipse and [tex](0,b) , (0,-b)[/tex] are the co-vertices of ellipse .

Horizontal axis is known as the major axis and vertical axis is known as the minor axis .

Here, x-intercepts are [tex](5,0) , (-5,0)[/tex] , take a = 5

y-intercepts are [tex](0,3) , (0,-3)[/tex] , take b = 3

As [tex]a > b[/tex] , it is a horizontal ellipse .

On putting a = 5 and b = 3 , we get equation as

[tex]\frac{x^2}{5^2}+\frac{y^2}{3^2} =1\\ \frac{x^2}{25}+\frac{y^2}{9} =1[/tex]

Answer:

Not geometric

Step-by-step explanation:

In a geometric sequence, each term is multiplied by a common ratio to get the next term.

So if this is a geometric sequence, then dividing each term by the one before it should result in the same common ratio.

42 / 21 = 2

126 / 42 = 3

504 / 126 = 4

The ratios are different.  This is not a geometric sequence.

Answer:

Some tips for the future, when trying to find if its arithmetic or geometric sequence we can do this to find the common ratio. Arithmetic; subtraction test Geometric; division test

Ex; 19, 25, 31, 37

Subtract-

37-31= 6

31-25= 6

25-19= 6

6 is the common difference for this arithmetic sequence

Ex; 4, 8, 16, 32

Divide-

32/16= 2

16/8= 2

8/4= 2

The common ratio for the geometric sequence is 2

Step-by-step explanation:

21, 42, 126, 504

504/126= 4

126/42= 3

42/21= 2

This is not a geometric sequence, there is no common ratio.

Answer:

40 degrees

Step-by-step explanation:

The alternate interior angles are equal when parallel lines are cut by transversal.

Basically the angle 70 would be equal to the 2 angles (x and 30). Thus we can say:

70 = 30 + x

x = 70 -30

x = 40

Hence x is 40 degrees

Answer:

That's 972 people in total.

Step-by-step explanation:

Here's how to solve this problem by setting up an equation with a single unknown.

Let the number of children that visited the zoo be [tex]x[/tex].

There are twice as many adults as children. So the number of adults will be [tex]2x[/tex].

Each child's ticket costs [tex]\$1.20[/tex]. The [tex]x[/tex] children will contribute a total of [tex]1.20 x[/tex] dollars to the total admission fee.

Each adult's ticket costs twice as much as a child's ticket. That's [tex]2\times \$1.20 = \$2.40[/tex]. The [tex]2x[/tex] adults will contribute a total of [tex]2.40\times 2x =4.80x[/tex] dollars to the total admission fee.

However,

[tex]\begin{aligned}&\text{Admission fee from children} \\+&\text{Admission fee from adults} \\ = &\text{Total Admission fee collected}\end{aligned}[/tex].

In other words,

[tex]1.20x + 4.80x = 1944[/tex].

[tex]6x = 1944[/tex].

[tex]\displaystyle x = \frac{1944}{6} = 324[/tex].

In other words, [tex]324[/tex] children visited the zoo. Twice as many adults visited the zoo. That's [tex]2x = 648[/tex] adults. [tex]324 + 648 = 972[/tex] people visited the zoo in total.

Answer:

3,100 ft^2

Step-by-step explanation:

Answer:

3,100 ft^2

Step-by-step explanation:

Answer:

D. (-7/2, 3/2)

Step-by-step explanation:

x = (-6+(-1))/2 = -7/2

y = (-2+5)/2 = 3/2

Answer:  D.

[tex](\dfrac{-7}{2},\ \dfrac{3}{2})[/tex]

Step-by-step explanation:

The coordinates of mid point (x,y) of a line joining points [tex](x_1 , y_1)[/tex] and [tex](x_2, y_2)[/tex] is given by :-

[tex]x=\dfrac{x_1+x_2}{2},\ y=\dfrac{y_1+y_2}{2}[/tex]

From the given graph , we can see that the line is joining two points (-6,-2) and (-1,5) .

Then, the mid point of the line is given by :-

[tex]x=\dfrac{-6+(-1)}{2},\ y=\dfrac{-2+5}{2}[/tex]

[tex]x=\dfrac{-6-1}{2},\ y=\dfrac{5-2}{2}[/tex]

[tex]x=\dfrac{-7}{2},\ y=\dfrac{3}{2}[/tex]

Hence, the midpoint of the given segment = [tex](\dfrac{-7}{2},\ \dfrac{3}{2})[/tex]

Answer:

15 teachers

Step-by-step explanation:

Given:

number of children is c

number of teachers is t

[tex]\frac{c}{t}[/tex] = [tex]\frac{14}{3}[/tex] (rearrange)

t = [tex]\frac{3}{14}[/tex] x C

When C = 70,

t = [tex]\frac{3}{14}[/tex] x 70

t = 15 teachers

Answer:

[tex] \frac{c}{t } = \frac{14}{3} [/tex]

as c=70 so put value of c in above formula we get

[tex] \frac{70}{t} = \frac{14}{3} [/tex]

by cross multiplication

[tex]70 \times 3 = 14t[/tex]

[tex]210 = 14t[/tex]

[tex] \frac{210}{14} = t[/tex]

t=15

i hope u will understand

44 is 11% of 400. To find the number that 44 is 11% of, you divide 44 by 0.11.

The question asks for an equation to represent the scenario where 44 is 11% of a number. In algebraic terms, this is represented as:

44 = 0.11  times x

To find x, divide both sides of the equation by 0.11:

x = 44 / 0.11

Calculating this gives us x = 400, which means that 44 is 11% of 400.

Answer:

[tex]\large\boxed{4.\ V=\dfrac{33.64\pi x}{3}\approx35.21x}\\\boxed{5.\ V=21\ cm^3}[/tex]

Step-by-step explanation:

4.

The formula of a volume of a cone:

[tex]V=\dfrac{1}{3}\pi r^2H[/tex]

r - radius

H - height

We have

[tex]2r=11.6\to r=5.8,\ H=x[/tex]

Substitute:

[tex]V=\dfrac{1}{3}\pi(5.8^2)x=\dfrac{1}{3}\pi(33.64)x=\dfrac{33.64\pi x}{3}[/tex]

[tex]\pi\approx3.14[/tex]

[tex]V\approx\dfrac{(33.64)(3.14)x}{3}\approx35.21x[/tex]

5.

The formula of a volume of a pyramid:

[tex]V=\dfrac{1}{3}BH[/tex]

B - base area

H - height

In the base we have the square. The formula of an area of a square with side s:

[tex]A=s^2[/tex]

We have

[tex]s=3cm,\ H=7\ cm[/tex]

[tex]B=3^2=9\ cm^2[/tex]

[tex]V=\dfrac{1}{3}(9)(7)=(3)(7)=21\ cm^3[/tex]

Answer: 15%

Step-by-step explanation: i just subtracted 714 from 840 then i started by multiplying by 10% and increasing until it gave me 126 which is what you get from subtracting 714 from 840

For this case we have that by definition, the domain of a function is given by all the values for which the function is defined.

While the range of the function is the set of all the values that [tex]f (x)[/tex] takes.

We have the following function:

[tex]f (x) = 4x + 9[/tex]

We evaluate in the domain:

[tex]f (-4) = 4 (-4) + 9 = -16 + 9 = -7\\f (-2) = 4 (-2) + 9 = -8 + 9 = 1\\f (0) = 4 (0) + 9 = 0 + 9 = 9\\f (2) = 4 (2) + 9 = 8 + 9 = 17[/tex]

ANswer:

{-7,1,9,17}

Answer:

b = 11.25m

Step-by-step explanation:

The base length of a parrellelogram with an area of 33.75 square meters and a height of 3 meters​ is 11.25 meters.

Answer:

11.25 m

Step-by-step explanation:

area of parallelogram = base  x height

so base = area/height

we substitute the values :

base = 33.75/3

        = 11.25

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

[tex]\huge\text{The formula is:}\dfrac{\huge\text{y}_2-\text{y}_1}{\text{x}_2-\text{x}_1}[/tex]

[tex]\huge\text{y}_2\huge\text{ = -1}\\\\\huge\text{y}_1\huge\text{ = 2}[/tex]

[tex]\huge\text{x}_2\huge\text{ = -1}\\\\\huge\text{x}_1\huge\text{ = -3}[/tex]

[tex]\dfrac{-1 -2 }{-1 - (-3)}[/tex]

[tex]\huge\text{-1 - 2 = -3}[/tex]

[tex]\huge\text{-1 - (-3) = 2 }[/tex]

[tex]\boxed{\boxed{\huge\text{Answer: }\dfrac{-3}{2}}}\huge\checkmark[/tex]

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

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

Answer:

The probability is 0.9973 or 99.73%

Step-by-step explanation:

* Lets explain how to solve the problem

- For the probability that a < X < b (X is between two numbers, a and b),

 convert a  and b into z-scores and use the table to find the area

 between the two z-values.

- Lets revise how to find the z-score

- The rule the z-score is z = (x - μ)/σ , where

# x is the score

# μ is the mean

# σ is the standard deviation

* Lets solve the problem

- For certain workers, the mean wage is $5.00/hr, with a standard

 deviation of $0.25

∴ μ = 5 and σ = 0.25

- The worker wage is between $4.25 and $5.75

∴ 4.25 < X < 5.75

∵ z = (x - μ)/σ

∴ z = (4.25 - 5)/0.25 = -0.75/0.25 = -3

∴ z = (5.75 - 5)/0.25 = 0.75/0.25 = 3

- Use the z table to find the corresponding area

∵ P(z > -3) = 0.00135

∵ P(z < 3) = 0.99865

∴ P(-3 < z < -2) = 0.99865 - 0.00135 = 0.9973

∵ P(4.25 < X < 5.75) = P(-3 < z < 3)

∴ P(4.25 < X < 5.75) = 0.9973 = 99.7%

* The probability is 0.9973 or 99.73%

Using the z-score method, we found that there is approximately a 99.74% chance that a randomly chosen worker's wage is between $4.25 and $5.75, given the wages follow a normal distribution.

To determine the probability that a randomly chosen worker's wage is between $4.25 and $5.75 when the mean wage is $5.00/hr with a standard deviation of $0.25, we'll use the properties of the normal distribution. First, we need to convert the wages into z-scores, which are measures of how many standard deviations away from the mean a value is.

To find the z-score for $4.25: Z = (4.25 - 5.00) / 0.25 = -3. To find the z-score for $5.75: Z = (5.75 - 5.00) / 0.25 = 3. Using these z-scores, we can look up the corresponding probabilities in a standard normal distribution table or use a calculator equipped with a normal distribution function.

The probability of a z-score between -3 and 3 is approximately 0.9974, meaning there is about a 99.74% chance that a randomly chosen worker's wage is between $4.25 and $5.75, given the distribution of wages is normal.

The symbol [tex]\lor[/tex], from the latin "vel", which means "or", is indeed the logical "or" operator.

This operator puts together two statements A and B, and [tex]A\lor B[/tex] is true whenever at least one between A and B is true.

So, in this case, [tex]p \lor q[/tex] is true whenever either p is true, or q is true, or both are true.

So, every number which is less than -3 or more than 3 makes [tex]p \lor q[/tex] true.

Mathematically, this is the same as claiming that [tex]|x|>3[/tex]

Answer:

1/6 of a cup of milk. Or at least that's my answer.

Step-by-step explanation:

Okay, we need to find out 25% of 2/3.

25% of 2/3 is 1/6.

To find out how much milk Zeinab needs for 1/4 of the original recipe, multiply 2/3 of a cup by 1/4. The answer is 1/6 of a cup of milk.

Detailed Explanation:

To find out how much milk Zeinab needs, we need to calculate 1/4 of the original amount of milk. The original recipe requires 2/3 of a cup of milk.

Start with the original amount: 2/3 of a cup of milk.

Multiply this amount by 1/4 to find the reduced quantity:

Multiply the fractions: 2/3 * 1/4

Simplify the result, which is 1/6 of a cup of milk.

So, Zeinab needs 1/6 of a cup of milk to make 1/4 of the original recipe.

Hence  1/6 of a cup of milk is required

Answer:

(a) The two ordered pairs are (0 , 340) and (4 , 285)

(b) The slope is m = -55/4

The slope means the rate of decreases of the owl population was 55/4

per year (P decreased by 55/4 each year)

(c) The model equation is P = -55/4 t + 340

(d) The owl population in 2022 will be 216

(e)  At year 2038 will be no more owl in the park

Step-by-step explanation:

* Lets explain how to solve the problem

- The owl population in 2013 was measured to be 340

- In 2017 the owl population was measured again to be 285

- The owl population is P and the time is t where t measure the numbers

 of years since 2013

(a) Let t represented by the x-coordinates of the order pairs and P

   represented by the y-coordinates of the order pairs

∵ t is measured since 2013

∴ At 2013 ⇒ t = 0

∵ The population P in 2013 was 340

∴ The first order pair is (0 , 340)

∵ The time from 2013 to 2013 = 2017 - 2013 = 4 years

∴ At 2017 ⇒ t = 4

∵ The population at 2017 is 285

∴ The second order pair is (4 , 285)

* The two ordered pairs are (0 , 340) and (4 , 285)

(b) The slope of any lines whose endpoints are (x1 , y1) and (x2 , y2)

     is [tex]m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex]

∵ (x1 , y1) is (0 , 340) and (x2 , y2) is (4 , 285)

∴ x1 = 0 , x2 = 4 and y1 = 340 , y2 = 285

∴ [tex]m = \frac{285-340}{4-0}=\frac{-55}{4}[/tex]

* The slope is m = -55/4

∵ The slope is negative value

∴ The relation is decreasing

* The slope means the rate of decreases of the owl population was

  55/4 per year (P decreased by 55/4 each year)

(c) The linear equation form is y = mx + c, where m is the slope and c is

    the value of y when x = 0

∵ The population is P and represented by y

∵ The time is t and represented by t

∴ P = mt + c , c is the initial amount of population

∵ m = -55/4

∵ The initial amount of the population is 340

∴ P = -55/4 t + 340

* The model equation is P = -55/4 t + 340

(d) Lets calculate the time from 2013 to 2022

∵ t = 2022 - 2013 = 9 years

∵ P = -55/4 t + 340

∴ P = -55/4 (9) + 340 = 216.25 ≅ 216

* The owl population in 2022 will be 216

(e) If the model is accurate , then the owl population be be zero after

    t years

∵ P = -55/4 t + 340

∵ P = 0

∴ 0 = -55/4 t + 340

- Add 55/4 t to both sides

∴ 55/4 t = 340

- Multiply both sides by 4

∴ 55 t = 1360

- Divide both sides by 55

∴ t = 24.7 ≅ 25 years

- To find the year add 25 years to 2013

∵ 2013 + 25 = 2038

* At year 2038 will be no more owl in the park

Check  the picture below.

Answer: X=5

Step-by-step explanation: i took the FLVS test

Answer:

First one.

Step-by-step explanation:

You don't need the diagram.

You need the congruence statement.

In a congruence statement, it tells you the correspond parts (the congruent parts).

Angle T = Angle L because T and L are both in 2nd position.

Segment TD=Segment SG is false because while D and G share the same position, T and S don't.

Segment MT=Segment GL is false because M and G do not share the same position while T an L do.

Use the order. The order does matter.

Answer:

Step-by-step explanation:First one.

Step-by-step explanation:

You don't need the diagram.

You need the congruence statement.

In a congruence statement, it tells you the correspond parts (the congruent parts).

Angle T = Angle L because T and L are both in 2nd position.

Segment TD=Segment SG is false because while D and G share the same position, T and S don't.

Segment MT=Segment GL is false because M and G do not share the same position while T an L do.

Use the order. The order does matter.

Read more on Brainly.com - https://brainly.com/question/12951285#readmore

Answer:

x = 230

Step-by-step explanation:

Given

[tex]\sqrt{x-5}[/tex] = 15 ( square both sides )

x - 5 = 15² = 225 ( add 5 to both sides )

x = 230

Graph C

This is a piecewise-defined function because it is defined by two equations over a specified domain and this domain is [tex][0,5][/tex]. The first function comes from the pattern of the square root function [tex]f(x)=\sqrt{x}[/tex] and the second one is a linear function.

The graph of [tex]3\sqrt{x+1}[/tex] has been shifted one unit to the left of [tex]f(x)=\sqrt{x}[/tex] and stretched vertically where each y-value is multiplied by 3.

Moreover, we can prove that:

The graph of [tex]3\sqrt{x+1}[/tex] passes through points (0,3) and (3,6):

[tex]y= 3\sqrt{x+1} \\ \\ \\ \bullet \ (0,3): \\ \\ let \ x=0: \\ \\ y= 3\sqrt{0+1} \therefore y=3\sqrt{1} \therefore y=3(1) \therefore y=3 \\ \\ \\ \bullet \ (3,6): \\ \\ let \ x=3: \\ \\ y= 3\sqrt{3+1} \therefore y=3\sqrt{4} \therefore y=3(2) \therefore y=6[/tex]

It passes through these points.

The graph of [tex]5-x[/tex] passes through points (5,0) and (3,2):

[tex]y=5-x \\ \\ \\ \bullet \ (5,0): \\ \\ let \ x=5: \\ \\ y=5-0 \therefore y=5 \\ \\ \\ \bullet \ (3,2): \\ \\ let \ x=3: \\ \\ y=5-3 \therefore y=2[/tex]

It passes through these points.

____________________

Answer:

12

Step-by-step explanation:

48 x 1/4

Multiply the total number of people by 1/4:

48 x 1/4 = 48/4

Simplify by dividing 48 by 4:

48 / 4 = 12

12 people had blue swimsuits.

Answer:

by geometry rules

for a triangle

external angle of a triangle is equal to the sum of two internal angle of the triangle ( other than external adjacent angle)

m<1= sum of m<2 and m<3

m<1= m<1+<2

m<1 = 31+72

m<1= 103

hope you are clear now !

Answer:

The correct answer is last option.  103

Step-by-step explanation:

Points to remember

Sum of any two angles of a triangle is equal to the exterior angle of the third angle

To find the measure of <1

It is given that m<2 = 31° and m< 3 = 72°

From the figure we can see that <2 and <3 are two angles of a triangle. And <1 is the exterior angle of third angle of same triangle.

Therefore we can write,

m<2 + m<3 = m<1

m<1 = 31 + 72

  = 103°

Therefore the correct answer is last option.  103

Answer:

Ellen's money would have earned $25 more than her money at her account

Step-by-step explanation:

* Lets explain how to solve the problem

- The simple Interest Equation (Principal + Interest)  is:

  A = P(1 + rt)  , Where

# A = Total amount (principal + interest)

# P = Principal amount

# r = Rate of Interest per year in decimal r = R/100

# t = Time period involved in months or years

* Lets solve the problem

- Ellen deposited $2,500 into a savings account that earns 5% interest

 per year

- Her friend's bank offers a 6% annual interest rate

* Lets calculate her money after 1 year in each account

# Her account

∵ P = $2500

∵ r = 5/100 = 0.05

∵ t = 1

∵ A = P(1 + rt)

∴ A = 2500(1 + 0.05 × 1) = 2500 (1.05) = 2625

* Her money would be $2625 in one year

# Her friend's account

∵ P = $2500

∵ r = 6/100 = 0.06

∵ t = 1

∵ A = P(1 + rt)

∴ A = 2500(1 + 0.06 × 1) = 2500 (1.06) = 2650

* Her money would be $2650 in one year

∵ 2650 - 2625 = 25

∴ Ellen's money would have earned $25 more than her money at her

  account

Answer:

The mean is equal to the median.

Step-by-step explanation:

Median is the middle value of a given data set. In a symmetric distribution, the data on the left side of the median is equal to the data on the right side of the median. Therefore, the mean of that data is equal to the median of the symmetric distribution.

Answer:

the mean is less than the explanation

Step-by-step explanation:

I just checked

Answer:

Degree is 2 so it is a quadratic.

The number of terms is 2 so it is a binomial.

It is a binomial quadratic.

Step-by-step explanation:

Let's find the degree of the polynomial first. I'm going to consider first the degrees of 5x^2 and 3.

The degree of the monomial 5x^2 is 2 because x is the only variable and it's exponent is 2.

The degree of the monomial 3 is 0 because there is no variable.

The degree of 5x^2+3 is therefore 2 because that is the highest degree of the monomials contained with in this polynomial 5x^2+3.

Degree 2 has a special name.

The special name for a degree 2 polynomial is quadratic.

Let's look at the number of terms in 5x^2+3.

Terms are separated by addition and subtraction symbols so there are two terms.

There is a special name for a two-termed polynomial, it is binomial.

So this is the following information I collected on our given polynomial:

Degree is 2 so it is a quadratic.

The number of terms is 2 so it is a binomial.

It is a binomial quadratic.

Answer:

the answer is a

Step-by-step explanation:

y = -2x +1

y = x + 5

-2x+1=x+5

-3x = 4

x= -4/3

y = -1 1/3 + 5= 3 2/3

first off, is noteworthy that on the denominators, 17 and 37 are prime numbers, so we can't quite factor them, and denominators of 15 and 22, have no common factors so the LCD of all denominators is simply their product, 15*22*37*17.

what we do is, turn all fractions with the same denominator, so they all represent the same division of the whole, and from there we can simply look at which numerator is larger or smaller to sort them.

we'll do so by using the LCD of all denominators, and dividing the LCD by each denominator, our quotient we'll use to multiply the fraction, let's do so

[tex]\bf \cfrac{7}{15} \qquad \cfrac{17}{22}\qquad \cfrac{22}{37} \qquad \cfrac{5}{17}~\hspace{5em} \stackrel{\textit{so the LCD for those denominators is}}{15\cdot 22\cdot 37\cdot 17\implies 207570} \\\\[-0.35em] ~\dotfill[/tex]

[tex]\bf \stackrel{207570\div 15 ~=~ 13838}{\cfrac{7\cdot 13838}{15\cdot 13838}}\qquad \stackrel{207570\div 22 ~=~ 9435}{\cfrac{17\cdot 9435}{22\cdot 9435}}\qquad \stackrel{207570\div 37 ~=~ 5610}{\cfrac{22\cdot 5610}{37\cdot 5610}}\qquad \stackrel{207570\div 17 ~=~ 12210}{\cfrac{5\cdot 12210}{17\cdot 12210}} \\\\[-0.35em] ~\dotfill[/tex]

[tex]\bf \cfrac{96866}{207570}\qquad \cfrac{160395}{207570}\qquad \cfrac{123420}{207570}\qquad \cfrac{61050}{207570} \\\\\\ \stackrel{\textit{and if we sort them from greatest to least}}{\cfrac{160395}{207570}\qquad \cfrac{123420}{207570}\qquad \cfrac{96866}{207570}\qquad\cfrac{61050}{207570}}[/tex]

Answer:

Step-by-step explanation:

[tex]\left\{\begin{array}{ccc}x-2y=-26\\x-y=-2&\text{change the signs}\end{array}\right\\\\\underline{+\left\{\begin{array}{ccc}x-2y=-26\\-x+y=2\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad\qquad-y=-24\qquad\text{change the signs}\\.\qquad\qquad y=24\\\\\text{Put the value of y to the second equation:}\\\\x-24=-2\qquad\text{add 24 to both sides}\\x=22[/tex]