Ask question

Ask question

All categories

3 years ago

7

The picture below shows a portion of a river dam:

2 answers:

NNADVOKAT [17]3 years ago

8 0

Hello,

If you are starting with the angle of 40 degrees, you have an adjacent side and hypotenuse. Therefore, it is a cosine relationship.

We can write:

cos(40) = adj / hyp
cos(40) = x / 220

To solve for x, simply multiply 220 by the cos(40).
You can write it as: 220 cos(40)

Good luck,
MrEQ

Contact [7]3 years ago

7 0

Answer:

220cos40

Step-by-step explanation:

cos40=x/220

(220)cos40=x/220(220)

220cos40=x

You might be interested in

How do you reflect something on a coordinate plane?

nordsb [41]

<span>Just like looking at a mirror image of yourself, but flipped....a reflection point is the mirror point on the opposite axis.</span>

7 0

4 years ago

Lucas owed his friend 12$. He got some money from babysitting and was able to pay his friend back $8. What is his balance now?

Tom [10]

Answer:

balance $4

Step-by-step explanation:

12 - 8 = 4

3 0

3 years ago

Read 2 more answers

During the early part of the 1994 baseball season, many sports fans and baseball players noticed that the number of home runs be

Ratling [72]

Answer:a

a

$m = 57.5$

b

$\= x = 50.14$

Step-by-step explanation:

From the question we told that

The stem plots for American League is

$2\\3\ \ \ \ \ 5\\4 \ \ \ \ \ 0\ 3 \ 9\\5 \ \ \ \ \ 1\ 4\ 7\ 8\ 8\\6 \ \ \ \ \ 4\ 8\ 8\\7 \ \ \ \ \ 5\ 7$

Here the first column is the tens while each digit in the in the second column is the unit of the first column

For example row 3 means

40 , 43, 49

The sample size is n = 14

Generally the median is mathematically represented as

$m = \frac{ K + Z}{2}$

Here K is the $(\frac{n}{2}) th \ term \ in \ the \ data \ given$ i.e $\frac{14}{2} = 7th \ term$

From the stem plot the 7th term is 57

And

K is the $(\frac{n}{2} + 1) th \ term \ in \ the \ data \ given$ i.e $\frac{14}{2} + 1 = 8th \ term$

From the stem plot the 8th term is 58

Thus the median is

$m = \frac{ 57 + 58}{2}$

=> $m = 57.5$

The stem plots for National League is

$2\ \ \ 9\\3\ \ \ \ 1\\4 \ \ \ \ 2\ 6\ 7\ 8\ 8\\5 \ \ \ \ 3\ 5\ 5\ 5\\6 \ \ \ \ 3\ 3\ 7\\7\\$

Generally the mean is mathematically evaluated as

$\= x = \frac{\sum x_i}{n}$

$\= x = \frac{29 + 31 + 42 + 46 + 47 + 48 + 48 + 53 + 55+ 55+ 55+ 63+ 63+ 67}{14}$

$\= x = 50.14$

5 0

3 years ago

For each triangle, check all that apply.

Anvisha [2.4K]

1 is an isosceles
2 is scalene
3 is an equilateral

3 0

3 years ago

Read 2 more answers

Will Give Brainliest!!!! On Time Limit Hurry Please Wrong answer will be deleted!!

LenaWriter [7]

Answer:

x = - 12, x = 2

Step-by-step explanation:

Given

x² + 10x = 24

To complete the square

add ( half the coefficient of the x- term )² to both sides

x² + 2(5)x + 25 = 24 + 25

(x + 5)² = 49 ( take the square root of both sides )

x + 5 = ± = ± 7 ( subtract 5 from both sides )

HOPE THIS HELPS

3 0

3 years ago

Read 2 more answers