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Softa [21]
3 years ago
5

Can anyone explain #4 on how to do it

Mathematics
2 answers:
N76 [4]3 years ago
6 0
\frac{(n-2)\cdot180}{n}=144\\
180n-360=144n\\
36n=360\\
n=10

It's decagon.
Lana71 [14]3 years ago
5 0
Here is the formula for find the one inside of the polygon: 
(n-2).180/n (n shows how many sides does polygon have)
so now we can solve the equation==== (n-2).180/n=144
1144n=(n-2).180
144n=180n-360
360=36n
n=10 
so we call it decagon :) 

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What is f(2) if the linearization of f(x) at a = 2 is l(x) = 12x + 4?
Sliva [168]
The linearization at f(a) is
.. l(x) ≈ f(a) +f'(a)*(x -a)
Then
.. l(a) = f(a)

f(2) = l(2) = 12*2 +4
f(2) = 28
4 0
3 years ago
I need help with this question please.
Reil [10]

Answer:

10 n equals 6

Step-by-step explanation:

Why? Because that has nothing to do with the problem and no solution for 3/5.

7 0
2 years ago
How do I find the sum or the difference how do I find the sum or the difference in 4y + 3 - y - 2
notka56 [123]

Answer:

3y+1

Step-by-step explanation:

4y+3-y-2

3y+3-2

3y+1

you just have to combine like terms

3 0
3 years ago
(4 - 3x) is greater than or equal to -9
dalvyx [7]

Answer:

x ≤ 13/3

Step-by-step explanation:

4 - 3x ≥ -9

Isolate the variable, x. Treat the ≥ sign as an equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.

First, subtract 4 from both side:

4 (-4) - 3x ≥ -9 (-4)

-3x ≥ - 9 - 4

-3x ≥ -13

Next, divide -3 from both sides. Note that when you divide by a negative sign, you must flip the sign:

(-3x)/-3 ≥ (-13)/-3

x ≤ (-13)/(-3)

x ≤ 13/3

x ≤ 13/3 is your answer.

~

8 0
3 years ago
The length of a rectangle is 4 yd less than three times the width, and the area of the rectangle is 55 ya? Find the dimensions o
inysia [295]

Answer:

length = 11 yard

width =  5 yard

Step-by-step explanation:

Area of a rectangle = L W

where A = 55 yard

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find: Length

        width

solution:

A = L W

55 = (3W - 4) W

55 = 3W² - 4W

3W² - 4W - 55 = 0

use quadratic equation to solve for W:

W = <u> - (-4) ± √(-4)² - 4(3)-55 </u>

                    2(3)

W = 5,  W = -11/3

substitute W=5 to equation L = 3W - 4 to solve for L

L = 3W - 4

L = 3(5) - 4

L = 15 - 4

L = 11

therefore, the dimensions of a rectangle:

length = 11 yard

width =  5 yard

6 0
3 years ago
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