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PilotLPTM [1.2K]
3 years ago
8

Hey, I need some help in math I put the pic down below

Mathematics
1 answer:
EastWind [94]3 years ago
4 0

For this case we have that by definition, the equation of a line in the slope-intersection form is given by:

y = mx + b

Where:

m: It's the slope

b: It is the cutoff point with the y axis

We find the slope with the given points:

m = \frac {y2-y1} {x2-x1} = \frac {401-450} {14-7} = \frac {-49} {7} = - 7

Thus, the line is given by:

y = -7x + b

We substitute a point to find "b":

450 = -7 (7) + b\\450 = -49 + b\\450 + 49 = b\\b = 499

Finally, the equation is:

y = -7x + 499

Answer:

y = -7x + 499

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DiKsa [7]
F(x)=\sqrt[3]{x+2}
to solve for the inverse of a function you do 4 steps:
1. subsitute f(x) with y
2. switch y and x places
3. solve for y
4. subsitute y with f⁻¹(x)

so we have
f(x)=\sqrt[3]{x+2}
subsitute f(x) with y
y=\sqrt[3]{x+2}
switch x and y
x=\sqrt[3]{y+2}
solve for y

x=\sqrt[3]{y+2}
cube both sides
x^{3}=y+2
subtract 2 from both sides
x^{3}-2=y

subsitute y with f⁻¹(x)
f⁻¹(x)=x^{3}-2



the answer is f⁻¹(x)=x^{3}-2



8 0
3 years ago
PLZ HELP I NEED THISS
Nikolay [14]

Answer:

Step-by-step explanation:

1) 5

2) -3, which becomes 3

3) it would land at either 3, or -3

4) 7 or -7

5) if it is to the left, that means it is negative. there fore, your answer is -4

6 0
3 years ago
A system of equations and its solution are given below.
Fittoniya [83]
Answer: Option <span>C. To get system B, the second equation in system A was replaced by the sum of that equation and the first equation multiplied by -3. The solution to system B will be the same as the solution to system A.

First equation of system A multiplied by -3:
(-3)(x+6y=5)
(-3)(x)+(-3)(6)=(-3)(5)
-3x-18=-15

Sum of the second equation of system A and the first equation multiplied by -3:
(-3x-18)+(3x-7y)=(-15)+(-35)
-3x-18+3x-7y=-15-35
-25y=-50

System B
x+6y=5
-25y=-50 </span>
4 0
3 years ago
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Serhud [2]

Answer:

Step-by-step explanation:

Sale price = 80% of $10 = 0.80×$10 = $8

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8 0
2 years ago
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Multiply 1/3 1/5<br><br>-1/10<br><br>-1/15<br><br>1/15<br><br>1/10​
defon

Answer:

1/337500

(Decimal: 0.000003)

Step-by-step explanation:

8 0
4 years ago
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