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Mice21 [21]
3 years ago
7

For what values (cases) of the variables the expression does not exist:

2%7D" id="TexFormula1" title="\frac{3}{4y+2}" alt="\frac{3}{4y+2}" align="absmiddle" class="latex-formula">
Mathematics
1 answer:
stealth61 [152]3 years ago
6 0

Answer:

y = - \frac{1}{2}

Step-by-step explanation:

Given

\frac{3}{4y+2}

The denominator of the expression cannot be zero as this would make it undefined. Equating the denominator to zero and solving gives the value that y cannot be, that is

4y + 2 = 0 ( subtract 2 from both sides )

4y = - 2 ( divide both sides by 4 )

y = \frac{-2}{4} = - \frac{1}{2} ← excluded value

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Ratiearbiteracy
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Explanation

Sorry but You gone have to higher the price for this, this is a big question.
5 0
3 years ago
Find the derivative of F(x)=-x^4+4x^3+ 70 for 0<=x<=3
timofeeve [1]

Answer:

  -4x^3 +12x^2 for 0 < x < 3

Step-by-step explanation:

The power rule is appropriate:

  (d/dx)x^n = n·x^(n-1)

This is applied to each of the terms.

  F'(x) = -(4·x^3) +4(3x^2) +0

  F'(x) = -4x^3 +12x^2 . . . . for 0 < x < 3

__

The derivative is not defined at the endpoints of the interval, so F'(x) is only defined on (0, 3), not [0, 3].

8 0
3 years ago
7y+5y-3y= How would I simplify this?
shusha [124]

Answer:

9y

Step-by-step explanation:

Add 7y and 5y which equals 12y. Then subtract 3y from 12y and u get 9y. It might be wrong

8 0
3 years ago
Read 2 more answers
Find the x and y intercepts for the equation 3/5x+1/2y=30
Jobisdone [24]
3/5x + 1/2y = 30
-3/5x. -3/5x
1/2y = -3/5x + 30
—————————
1/2
Y= -1.2x + 60
7 0
3 years ago
16. A truck traveling 45 miles per hour and a train traveling 60 miles per hour cover the same distance. The truck travels 2 hou
Snowcat [4.5K]

Answer:

A.

Step-by-step explanation:

d = rt

If t is the time taken by the train, then the truck takes t+2 hours.

For the truck:

d = 45(t + 2)

For the train:

d =  60t

Total distance travelled by both:

= 2d

= 60t + 45(t + 2)

= 60t + 45t + 90

= 105t + 90      where t is the time taken by the train.

7 0
3 years ago
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