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sweet [91]
3 years ago
8

Solve the system of equations by substitution. -5x + y = 3 7.5x - 1.5y = 3

Mathematics
1 answer:
Sonbull [250]3 years ago
7 0
Multiple the first equation by 1.5 and solve the equation then
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Write the equation of a line in slope-intercept form with a slope of -1/3 and a y intercept of 4
Sergeu [11.5K]
Y = -1/3x + 4 . 4 is the intercept -1/3x is the slope
8 0
3 years ago
PLS HELP WILL GIVE MANY POINTS
USPshnik [31]

Answer:

There is a site where you can look these up, Try to look it up on the internet heres some sites, For Homework: slader

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5 0
3 years ago
Use the figure below to find the answer.
Serhud [2]

Answer: \frac{7\sqrt{2}}{2}

Step-by-step explanation:

\sin 45^{\circ}=\frac{7}{y}\\\\\frac{1}{\sqrt{2}}=\frac{7}{y}\\\\y=\frac{7}{\sqrt{2}}=\boxed{\frac{7\sqrt{2}}{2}}

4 0
2 years ago
Hello pls help meeee
AnnyKZ [126]

The function is (-x+3)/ (3x-2) and we get f(1)=1 and differentiation is f'(x)=-7/ (9x²- 12x+4).

Given that,

The function is (-x+3)/ (3x-2)

We have to find f(1) and f'(x).

Take the function expression

f(x)= (-x+3)/ (3x-2)

Taking x as 1 value

f(1)= (-1+3)/(3(1)-2)

f(1)=2/1

f(1)=1

Now, to get f'(x)

With regard to x, we must differentiate.

f(x) is in u/v

We know

u/v=(vu'-uv')/ v²        (formula)

f'(x)= ((3x-2)(-1)- (-x+3)(3))/ (3x-2)²

f'(x)= ((-3x+2)-(-3x+9))/ 9x²- 12x+4

f'(x)=(-3x+2+3x-9)/ 9x²- 12x+4

f'(x)=2-9/ (9x²- 12x+4)

f'(x)=-7/ (9x²- 12x+4)

Therefore, The function is (-x+3)/ (3x-2) and we get f(1)=1 and differentiation is f'(x)=-7/ (9x²- 12x+4).

To learn more about function visit: brainly.com/question/14002287

#SPJ1

6 0
1 year ago
The freezing point of methanol is -97.6. What is the freezing point of methanol in Fahrenheit
motikmotik

Answer:

-143.68°F

Step-by-step explanation:

Celsius to Fahrenheit Conversion Formula: F = 1.8C + 32

Simply plug in <em>c</em> as -97.6:

F = 1.8(-97.6) + 32

F = -175.68 + 32

F = -143.68

3 0
3 years ago
Read 2 more answers
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