Can some one answer quickly please

Answer:

The exact value of tan A in simplest form is [tex]tan (A) = \dfrac{9}{40}[/tex]

Step-by-step explanation:

The parameters of the given right triangle are;

The length of the hypotenuse side = 41

The length of the vertical leg of the right triangle = 9

The  length of the opposite leg of the right triangle = 40

By trigonometric rule, we have;

[tex]tan (A) = \dfrac{Opposite \ leg \ length \ to \ angle \ A}{Adjacent \ leg \ length \ to \ angle \ A }[/tex]

Therefore, we have;

[tex]tan (A) = \dfrac{9}{40} = 0.225[/tex]

Answer:

61

Step-by-step explanation:

Because all triangles's angles sum is always equal to 180, we can establish the equation, (9x - 31) + (7x - 2) + (4x + 33) = 180.

Simplifying, we get;

9x - 31 + 7x - 2 + 4x + 33 = 180

20x = 180

x = 9.

So, angle DCE = 7x - 2 = 7 * 9 - 2 = 63 - 2 = 61

Answer: 440 ft

Step-by-step explanation:

The top walking deck is 120ft long and yet comprises only 3/11 of the ships total length.

Assuming the total length of the ship is x ft long, the expression would therefore be:

x * 3/11 = 120 ft

The above shows that if x is multiplied by 3/11 it will give a distance of 120ft which is the top walking deck length.

Solving for x:

x * 3/11 = 120

x = 120 ÷ 3/11

x = 120 * 11/3

x = 440 ft

Note: When being divided by a fraction, you can multiply the inverse of the fraction to find the result.

Answer: x=-2

Y= -20

Step-by-step explanation

You replace the y in the second equation with 10x. This is because it says 10x=y

2x+10x=12x so you put that

12x=-24

To get x by its self you divide by 12.

-24 divided by 12 is -2.

Now you plug in -2 to either equation as y. I chose the first one because it's easier.

10(-2)=y

-20=y

Answer:

the answer is (2,-3)

Step-by-step,-explanation:

Answer:

[tex]91p^{1+3q^{2r}}q^{2r^3}[/tex]

Step-by-step explanation:

  [tex](-7pq^2r^3) * (-13p^3q^2r)[/tex]

= 91[tex]p^{1+3q^{2r} }[/tex]*[tex]q^{2r^{3} }[/tex]

= [tex]91p^{1+3q^{2r}}q^{2r^3}[/tex]

Answer:

No.

Step-by-step explanation:

4 x 3 is 12. 4 divided by 3 cannot be 12.

Hope it helps!

Answer:

No

Step-by-step explanation:

Not possible

Answer:

D is the right answer

Step-by-step explanation:

Answer:

8 dollars per hour

You divide the amount of dollars by the time or hourse to get a unit rate

Answer:

32x76x4x-9÷42= 9727

6= 5

I'm not sure...

Answer:

-2084 4/7

Step-by-step explanation:

32×76=2432×4=9728×-9=-87552÷42=2084 4/7

Answer:

If DE// to BC, slope of DE= slope of BC

D=([tex]\frac{4+2}{2} ,\frac{6-2}{2}[/tex])

D=(3,2)

E=([tex]\frac{4-2}{2} ,\frac{6-4}{2}[/tex])

E=(1,1)

Slope of DE=[tex]\frac{2-1}{3-1} =\frac{1}{2}[/tex]

Slope of BC=[tex]\frac{-2-(-4)}{2-(-2)} =\frac{1}{2} =[/tex]Slope of DE

∴DE // to BC.

Answer:

4x - 36 feet

Step-by-step explanation:

The area A of a  square whose sides are s units is given as

A = s * s

Given that the area A = x^2-18x+81, factorizing

A = x^2-9x-9x+81

A= x(x-9)-9(x-9)

A = (x-9)(x-9)

A = (x-9)^2

This means that the size of each side of the square  courtyard is x-9 feet long

Recall that the perimeter P of a square whose side is s long is given as

P = 4s hence since the side of the courtyard is x - 9 feet, the perimeter of the courtyard

P = 4(x-9)

= 4x - 36 feet

for A multiply each time(hour) by 65 and when the number of hours doesnt have a number by it divide the pages by 65.

Step-by-step explanation:

Example for the first one multiply 65 by 3 , and for the pages divide 585 by the number you got previously from the # of pages. And also the same for B

Answer:

James = 119 points

Sarah = 357 points

Roberts = 51 points

Step-by-step explanation:

Given that :

James = x points

Sarah = 3x points

Roberts = x - 68 points

Each point = 3 pence

All students have a total of £15.81

1 pound = 100 pence

£15.81 pound = 1581 pence

3x + 3(3x) + 3(x - 68) = 1581

3x + 9x + 3x - 204 = 1581

15x - 204 = 1581

15x = 1581 + 204

15x = 1785

x = 1785 / 15

x = 119

Hence,

James = 119 points

Sarah = 119 * 3 = 357 points

Roberts = 119 - 68 = 51 points

Answer:

2(4x-2)+3x*2=8x-4+6x=14x-4=122

14x=126

x=9

Step-by-step explanation:

The number of 1/8s which are in 25 as required to be determined is; 200.

It follows from the task content that the number of 1/8s in 25 as required in the task content is to be determined.

It follows from arithmetic principles that the number of 1/8s in 25 can be determined by evaluating; 25 ÷ 1/8

= (25 × 8) / 1

= 200.

Therefore, the number of 1/8s in 25 is; 200.

Also, if the number of 1/8s in 25 is to be determined; the multiplication equation to check the answer is; 1/8 × 200 = 25....which holds true.

Read more on division of fractions;

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Answer:

[tex]\frac{14\sqrt{3} }{3}[/tex]

Step-by-step explanation:

Answer:

(12,-7)

Step-by-step explanation:

The required ordered pair of the pre-image of D'(4, -3) is D(12, -7).

Given that,
To determine the preimage of the ordered pair of D'(4, -3) by the translation, (x, y)  to (x – 8, y+4).

Coordinate, is represented as the values on the x-axis and y-axis of the graph.

The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.

Here,
Let the ordered pair of the preimage be (x, y)
Now,

according to the question,
x - 8 = 4
x = 12
y + 4 = -3
y = -7

Thus, the required ordered pair of the pre-image of D'(4, -3) is D(12, -7).

Learn more about coordinate here:

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Answer:

I am stuck on this problem too. Is it on eacxt path.

Step-by-step explanation:

Answer:

straight

Step-by-step explanation:

it is a straight angle

Answer:

slope = 4/=7

y int = -7

Step-by-step explanation:

slope = rise/run

slope = 4/-7

y int:

y = 4(0)-7

y= 0-7

y int = -7

The slope and y-intercept of the equation are 4 and -7 respectively.

The general equation of a straight line is y=mx+c, where m is the gradient, and y = c is the value where the line cuts the y-axis. This number c is called the intercept on the y-axis.

The given equation of a line is y=4x-7.

By comparing y=4x-7 with y=mx+c, we get

m=slope = 4 and c=y-intercept=-7

Therefore, the slope and y-intercept of the equation are 4 and -7 respectively.

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Answer is in the picture:

At 2:02 PM the two vehicles pass each other.

The speed formula can be defined as the rate at which an object covers some distance. Speed can be measured as the distance travelled by a body in a given period of time. The SI unit of speed is m/s.

Given thta,

Los Angeles to San Francisco:

rate = 60 mph ; distance = x miles ; time = d/r = x/60 hrs

San Francisco to Los Angeles:

rate = 40 mph ; distance = 400-x ; time = d/r = (400-x)/40 hrs

So, equation is

x/60 = (400-x)/40 + 3

x/60 = (400-x)+120/40

40x = 60[(400-x)+120]

40x=24000-60x+7200

100x=31200

x=312 miles

Now, time = 312/60

= 5.2 hours

Clock time = 9+5.2

= 14.2 hours

= 2:02 PM

Therefore, at 2:02 PM the two vehicles pass each other.

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Answer: 189 teens

Step-by-step explanation:

Given

- There are 19% of teens who like to volunteer at animal shelters

- There are in total 995 teens

Solve

19% × 995= 189.05

189.05≈189 (Since people must be in whole numbers, we need to round)

Hope this helps!! :)

Please let me know if you have any questions

Answer:

if the scale is .5 inches for every 10 feet the answer is C.