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yaroslaw [1]
3 years ago
12

Exact solutions. X^2-5x-1=0

Mathematics
1 answer:
Romashka [77]3 years ago
7 0

Answer:

x= (5±√29)÷2

Step-by-step explanation:

Quadratic formula:

x= (-b±√b²-4ac)÷2a

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Help please fast the format is Y-____=_____(x - ____) and i need the actual answer
mojhsa [17]

9514 1404 393

Answer:

  • y -195 = 15(x -9)
  • $60

Step-by-step explanation:

The form of the equation you are given is called "point-slope" form. The "slope" in this case is the per-hour fee. The point is (9 h, $195). Point-slope form generally looks like this:

  y -k = m(x -h) . . . . . line with slope m through point (h, k)

Here, you have m=15, (h, k) = (9, 195), so the equation looks like ...

  y -195 = 15(x -9)

__

The "one-time fee" is the cost when hours are zero.

  y -195 = 15(0 -9)

  y = 195 -9(15) = 60 . . . . add 195 to both sides, and evaluate

The one-time fee is $60.

5 0
3 years ago
What kinds of functions can be integrated using partial fraction decomposition? Choose the correct answer below
zaharov [31]

Answer:

B. Rational functions

Step-by-step explanation:

The partial fraction decomposition is used for functions there are described by fractions, and for which the substitution method is not possible. These are rational functions, in which both the numerator and the denominator are polynomials.

So the correct answer is:

B. Rational functions

4 0
3 years ago
A rectangle’s width is one-fourth of its length. Its area is 9 square units. The equation l(l) = 9 can be used to find l, the le
Natalka [10]

Answer:

6 units

Step-by-step explanation:

The formula for the area of a rectangle = Length × Width

A rectangle’s width is one-fourth of its length.

W = 1/4 × L

W = L/4

Cross Multiply

L = 4W

A = 9 square units

Hence

9 = L × W

We substitute 4W for L

9 = 4W × W

9 = 4W²

We square root both side

√9 = √4W²

3 = 2W

W = 3/2

W = 1 1/2 unit or 1.5 units

Solving for L = Length

9 = L × W

9 = L × 1.5

L = 9/1.5

L = 6 units

Therefore, the Length of the rectangle = 6 units

3 0
3 years ago
Find the volume of x in the triangle shown below
Allushta [10]

Answer:

109°

Step-by-step explanation:

x+48+23=180

x=180-71

<h3>x=109°</h3>
8 0
3 years ago
Read 2 more answers
HELP PLS ILL GET FINES AND HELD BACK AND IM POR
goldfiish [28.3K]

Answer:

it would be c

Step-by-step explanation:

Beacause 3x2 equal 6 you do not multiply the dinominator

7 0
3 years ago
Read 2 more answers
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