Mathematics College

use ABC to find the value of cos A

40/9
9/41
40/41
9/40

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Answer 1

Answer:

Yes the one you clicked on is the right answer.

Related Questions

Evaluate the following; ( rounding off to three decimal places) 1.2.1 cos 243,2°

Answers

Answer:

-0.45

Step-by-step explanation:

put that in a calculator

round off to 2 decimal places

What will happen to the measures of central tendency if the outlier is removed

Answers

It decreases the number of data by one.

$3.00 with the
same number of nickels and dimes

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Answer:

15 each i think

Step-by-step explanation:

Pls help WILL GIVE BRAINLIST
A person looking out a window, 40 feet above street level can sight the top and

bottom of the building. The angle of elevation to the top of the building is 61 degrees and the angle

f depression to the bottom of the building is 37 degrees. How tall is the building that the person is looking at

Answers

Answer:

135.94 feet

Step-by-step explanation:

Split the problem into two parts :

Distance between viewer and buildingHeight of the top part of the building

Distance between viewer and building

The lower part of the building is 40 feet, as it is mentioned the viewer is 40 feet above street levelLet the distance be called 'd'Therefore, tan37° = 40/dtan37° = 3/4 = 0.75⇒ 40/d = 0.75⇒ d = 40/(3/4) = 40 x 4/3 = 160/3 = 53.3 feet

Height of the top part of the building

Let the height of the top part be 'h'Therefore, tan61° = h/d = h/53.3tan61° = 1.8⇒ h/53.3 = 1.8⇒ h = 53.3 x 1.8 = 95.94 feet

Total height of building

Lower part + Top part40 + 95.94135.94 feet

Please help!! I will give brainiest

Answers

Answer:

1) 13.9

2) 96. 0

3) 667.2

Step-by-step explanation:

Edge

Hope this helps!!

What is the gross profit if I buy a product for $125 and sell it for $150?

Answers

Answer:

You are making 25$ in profit. You do this by subtracting 150-125. to get 25.

Step-by-step explanation:

Hope This Helps

Have A Great Day

~Zero~

If (-1, y) lies on the graph of y = 2^2x, then y =
04
1/4
01

Answers

Answer:

y = 1/4

Step-by-step explanation:

substitute the given value of x = -1 into the equation.

y^2^2 (^-1) =2^-2 = 1/2^2 = 1/4

Which shows how to solve the equation 3/4x -6 for x in one step

Answers

Answer:

Step-by-step explanation:

You can multiply both sides on an equation by the reciprocal to cancel the fraction on the first side.

5. The ratio of the number of John's stamps to the number of Peter's stamps is 5:8. Peter has 18 more stamps than John. If Peter gives 22 stamps to John, what will be the new ratio of the number of John's stamps to Peter's?

Answers

Answer:

2:1

Step-by-step explanation:

J:P = 5:8

30:48

48-30= 18

48-22= 26

30+22= 52

new ratio

52:26

2:1

Am I correct??????????????????????

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can't understand ur question proper is that ∠bgh= z, ∠chi=y, ∠hif=x

can u confirm me

and in ur answer x= 80°

because it is an alternate angle of y

2. You want to buy some beans. A
7-ounce package costs $2.38. A
15-ounce package costs $5.25. A
26-ounce package costs $8.58. Which
package is the best buy?

Answers

Answer:

Step-by-step explanation:

Remark

If you find out the cost of 1 oz of each of them, that will determine the best buy. The smallest number is the best buy.

Givens

7 oz cost $2.38

15 oz cost $5.25

26 oz cost $8.58

Solution

7 oz

7 oz cost $2.38

1 oz cost x This is a proportion. 3 quatities are known. Find x Cross multiply.

7/1 = 2.38/x

7x = 2.38

x = $0.34 dollars

15 oz

15 oz cost 5.25

1 oz costs x

15.1/1 = 5,25 x Cross Multiply

15x = 5.25 * 1 Divide by 15

x = 5.25 / 15

x = $0.35

26 oz

26 oz cost 8.58

1 oz cost x

26/1 = 8.38/x Cross Multiply

26x = 8.38 Divide by 26

x = 8.38/20

x = 0.32 dollars

Answer

7 oz cost 0.34

15 oz cost 0.35

26 oz cost 0.32

The best buy is 0.32 / oz for 26 oz

A sphere has a radius of 5 inches. What is its volume?

Answers

Given ↓

Radius of sphere = 5 inTo Find ↓The volume of the sphereCalculations ↓

[tex]\blue{\boxed{\mathsf{V=\frac{4}{3} \pi r^3}}[/tex]

↑ formula for volume of a sphere

r = 5 in

Plug in the value of r and solve :

[tex]\blue{\boxed{\mathsf{V=\frac{4}{3}\pi (5)^3}}}[/tex]

Simplify as follows :

[tex]\blue{\boxed{\mathsf{V=\frac{4}{3}\pi *125} }}[/tex]

[tex]\blue{\boxed{V=\frac{4}{3} *392.7}}[/tex]

Answer:

1 3/5 bags left

Step-by-step explanation:

If she gives 2/5 away, she keeps 3/5

3/5 * 2 2/3 = 3/5 * 8/3 = 24/15 = 1 9/15 = 1 3/5 bags left

How many different ways can someone arrange the all letter in AMERICA to make a world

Answers

Answer:

2520 different ways

solve this question.....

Answers

Answer:

22.5 km

Step-by-step explanation:

Since 1 cm on the map is 250000 cm in real life :

We can convert 250000 cm to km :

First we convert to m :

250000 ÷ 100 = 2500 m

Now we convert m into km :

2500 ÷ 1000 = 2.5 km

Now we multiply 2.5 km by 9 cm to get :

2.5 × 9 = 22.5 km

Therefore the 2 villages are 22.5 km apart.

Hope this helped and brainliest please.

Answer:

2.25 million km

Step-by-step explanation:

Step 1. Write ratio with "x"

Step 2. Create a proportion

Step 3. Cross multiply

Step 4. Solve for "x"

1 : 250,000

9 cm : x km

1/250,000 = 9/x

x = (9)(250,000)

x = 2.25 million km

BRAINLIEST please if this helped!

HELPPP
Carmen is going to build some large wooden storage boxes. The boxes are shaped like rectangular prisms, as shown below. She wants to cover all the sides of
each box with special wallpaper. If she has a total of 1498 ft? of wallpaper, how many boxes can she cover?

Answers

Answer:

7 boxes

Step-by-step explanation:

The area of a rectangular prism is given by the formula ...

A = 2(LW +H(L+W))

The amount of wallpaper Carmen needs for one box is found by computing the area of the box.

One box

A = 2(5·6 +7(5+6)) = 2(30 +7·11) = 2(107) = 214 . . . square feet

All boxes

Carmen will be using a total of 214x square feet of wallpaper to cover x boxes. She has 1498 ft² available, so can cover ...

1498 ft²/(214 ft²/box) = 7 boxes

Carmen has enough wallpaper to cover 7 storage boxes.

CAN SOMEONE FIND X pls

Answers

Answer:

Step-by-step explanation:

22x - 13 = 20x + 1

2x - 13 = 1

2x = 14

x = 7

please slove the problem in the below pic

Answers

First integral:

Parameterize -C (the reverse of C) by [tex]z = e^{it}[/tex] where [tex]0\le t \le\frac\pi2[/tex]. Then the contour integral is

[tex]\displaystyle \int_{-C} (z^2 - z + 2) \, dz = \int_0^{\frac\pi2} \left(e^{2it} - e^{it} + 2\right) i e^{it} \, dt[/tex]

[tex]\displaystyle = i \int_0^{\frac\pi2} \left(e^{3it} - e^{2it} + 2e^{it}\left) \, dt[/tex]

[tex]\displaystyle = i \left(\frac1{3i} e^{3it} - \frac1{2i} e^{2it} + \frac2i e^{it}\right) \bigg|_0^{\frac\pi2}[/tex]

[tex]\displaystyle = \left(\frac13 e^{3it} - \frac12 e^{2it} + 2 e^{it}\right) \bigg|_0^{\frac\pi2}[/tex]

[tex]\displaystyle = -\frac43 + \frac53i[/tex]

Then

[tex]\displaystyle \int_C (z^2-z+2) \, dz = -\int_{-C} (z^2+z-2) \, dz = \boxed{\frac43 - \frac53i}[/tex]

Second integral:

The integrand has a pole of order 2 at z = 3i which is contained in C. By the residue theorem,

[tex]\displaystyle \int_C \frac{z^2+z}{(z-3i)^2} \, dz = 2\pi i\, \mathrm{Res}\left(\frac{z^2+z}{(z-3i)^2}, z=3i\right)[/tex]

Compute the residue:

[tex]\displaystyle \mathrm{Res}\left(\frac{z^2+z}{(z-3i)^2},z=3i\right) = \lim_{z\to3i} \frac{d}{dz}\left[z^2+z\right] = \lim_{z\to3i} (2z+1) = 1 + 6i[/tex]

Then the value of the integral is

[tex]\displaystyle \int_C \frac{z^2+z}{(z-3i)^2} \, dz = 2\pi i (1 + 6i) = \boxed{-12\pi + 2\pi i}[/tex]

Find X exactly. Answer should be in a square root.

Answers

Answer:

7 in <==== no sqrt in the answer

Step-by-step explanation:

x = 7 sqrt 2 * cos 45

= 7 sqrt 2 * sqrt 2 /2

= 7 (2)/2 = 7

A function f is odd and f(x)=x2 for all x>0. Sketch the graph of this function and then write the rule of this function as a single formula.
f(x)=

Answers

For the function to be an odd function, then f(-x) = -f(x) and the function f(x) is not an odd function

How to determine the function?

The function f(x) is given as:

f(x) = x^2

For the function to be an odd function, then the following must be true:

f(-x) = -f(x)

So, we have:

f(-x) = (-x)^2 = x^2

-f(x) = -x^2

From the above computation, we can see that the functions f(-x) and -f(x) are not equal

Hence, the function f(x) is not an odd function

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its the one on the right :) x goes up 5 each time, y goes up 3 each time ; no jumps

Log20x=3 need the answer for algebra 2

Answers

Answer:

x = 50

Step-by-step explanation:

I don't know the answer marked stylish random

Answers

Answer:

Step-by-step explanation: i am in math 8

lol

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use ABC to find the value of cos A 40/9 9/41 40/41 9/40

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use ABC to find the value of cos A

40/9
9/41
40/41
9/40