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jek_recluse [69]
3 years ago
15

3x-x+7=-15 three x(variable) minus x (variable) plus seven equals negative 15 please solve

Mathematics
1 answer:
frutty [35]3 years ago
5 0
So combine like terms and solve for x
2x=-22
X=-11
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Answer:

Evaluated, you get 4x^4

Step-by-step explanation:

Differentiated, you get 16x^3

It all depends on what you're looking for, really

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For every arm a person has, they have a leg. Which ratio represents this situation?
Irina-Kira [14]
A: 1:1 unless they want you to count both arms then it would be B: 2:2
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The original price of a stove is $570.00. If it has a 25% discount, find the selling price. *
Rom4ik [11]

Answer:

$357.50

Step-by-step explanation:

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7 0
3 years ago
Consider the following three equations:
KengaRu [80]

Answer:

1.

y = 20(11) + 300 = 520

y = 5(11)(11) = 605    

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hence the quadratic formula - y = 5x^2 has the largest y-value

2.

y = 20 (14) + 300 = 580

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y = 10(1.4)^ 14 = 1111.20   >    this is greater than both equations above

14 is the smallest value of x for which the value of the exponential equation is greater than the values of both the linear and quadratic functions

Step-by-step explanation:

8 0
3 years ago
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Help and explain ///////////////////////////
Ilia_Sergeevich [38]

Hello,

First, you must understand that

(f-g)(x) means f(x)-g(x) it is the difference of two functions :

f(x)=2x+4 and g(x)=3x-7

f(5)=2*5+4=10+4=14

g(5)=3*5-7=15-7=8

So, (f-g)(5)= f(5)-g(5)=14-8<u>=6</u>

Answer A: none of the choices are correct.

An other way to do it:

(f-g)(x)=f(x)-g(x)=2x+4-(3x-7)= 2x-3x+4+7=-x+11

if x= 5 then (f-g)(5)=-5+11<u>=6</u>

4 0
3 years ago
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