Find the value of cos N rounded to the nearest hundredth, if necessary.

Mathematics

1 answer:

hichkok12 [17]1 year ago

6 0

cos N = 14/20 = 0.70

You might be interested in

If y=12 when x=3, find y when x =15 ( Y varies directly as x)

Flauer [41]

Y = kx
when y= 12, x=3
12 = 3k
k = 12/3
k = 4

y = 4x
when x= 15
y = 4(15)
y = 60

4 0

2 years ago

The profit from a business is

GuDViN [60]

First of all we will understand the question!!

The question is saying that you are given a function and you have to find the value of x which will give the maximum profit... Lets solve it by finding the extrema using the vertex

 $\rm \: p(x) = - 5 {x}^{2} + 30x + 8$ 

Identify the coefficients a and b of the quadratic function

 $\rm \: p(x) = { - 5x}^{2} + 30x + 8 \\ \rm \: a = - 5 \: and \: b \: = 30$ 

Since a<0, the function has the maximum value at x, calculated by substituting a and b into x=-b/2a

$\rm \: x = \frac{30}{ 2 \times (- 5)}$

Solve the equation for x

$\rm \: x = 3$

The maximum of the quadratic function is at x=3

3 0

1 year ago

The sidewalk is 5 feet wide and the garden measures 40 feet across. Which measurement is closest to the area of the sidewalk?

Karolina [17]

Answer:

Step-by-step explanation:

7 0

2 years ago

Please help with this math worksheet

siniylev [52]

1) 4(x+7)=80
Value of x
Multiply
4x+28=80
4x=80-28
4x=52
X=52/4
X=13

5 0

2 years ago

Eloise is planning on retiring soon. When she first began working she invested $1500 in a retirement fund. The percent increase

natali 33 [55]

1500 ( 1 + .95)

Answer: B. $2,925.0

7 0

3 years ago