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sdas [7]
2 years ago
6

The angles in a quadilateral are are 61,4x,115,96 degrees, find the value of X.​

Mathematics
1 answer:
icang [17]2 years ago
7 0

Answer:

x = <u>22</u>

Step-by-step explanation:

The sum of the angles in a quadrilateral is 360°. This can be written as:

 61° + 115° + 96° + 4x = 360°

Further simply and solve to find the value of x.

 272° + 4x = 360°

 4x = 360° - 272°

 4x = 88

 x = \frac{88}{4}

 ∴ x = 22

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MT&amp;A uses the function f(x)=475-15x-15x.to depreciate smart phones. where f represents the value of smart phone and x repres
Shalnov [3]

Answer:

Find the answers in the explanation

Step-by-step explanation:

The given function is

f(x)=475-15x

A.) To find f^-1 and explain what it represents in this situacions, let f(x) = y. That is,

Y = 475 - 15x

Interchange y and x and make y the subject of formula

X = 475 - 15y

-15y = x - 475

Y = 475/15 - x/15

Y = (475 - x) / 15

Therefore,

f^-1(x) = (475 - x) / 15

If the function depreciates the smartphone, then, the inverse function will appreciate it.

When will the deprecated value of smart phone be less than $100.00

Substitute 100 for f(x) and find x

100 = 475 - 15x

-15x = 100 - 475

-15x = - 375

X = 375/15

X = 25

Therefore, the deprecated value of smart phone be less than $100.00 in the next 26 months.

what does x represent in f^-1(x) =30?

X represent the number of months for the smartphone appreciations

What is the value of x?

Substitute the inverse function for 30 and make x the subject of formula in the equation

f^-1(x) = (475 - x) / 15

30 = (475 - x) / 15

Cross multiply

450 = 475 - x

X = 475 - 450

X = 25 months

Graph f(x) and f^-1 (x) on the same coordinate

4 0
3 years ago
PLEASE ANSWER ASAP!!!!! DONT NEED much explanation How many solutions does this system have? (photo below)
Tema [17]

Answer:

infinite solutions

Step-by-step explanation:

Multiply the first equation by 2

2(3x-5y) = 2*15

6x - 10y = 30

This is the same as the second equation

They are the same line

This means there are infinite solutions

3 0
3 years ago
These the answers ❤️.
irina [24]
No ❤️ hahaha i can’t see anything
4 0
3 years ago
Read 2 more answers
HELP PLZZZZZZZZ HELP PLZZZZZZZZZ
Lesechka [4]
1. 6.73 x 10^6
2. 1.33 x 10^4
3.9.77 x 10^22
4. 3.84 x 10^5
The rest i didn’t understand what where you trying to say
7 0
3 years ago
How many different ways can 3 singers be selected from 5 who came to an audition
abruzzese [7]

This is known as "5 take 3", where ordering is not important.

\binom{5}{3} = \frac{5!}{3!(5-3)!} = \frac{120}{6\cdot2} = 10

5 0
3 years ago
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