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zalisa [80]
3 years ago
15

Solve equation by using the quadratic formula.

Mathematics
1 answer:
marshall27 [118]3 years ago
4 0

Answer:

x(15x+13)=0

x=0 or 15x+13=0

so x=0 or x=-13/15

Step-by-step explanation:

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Evaluate the following expression.<br> cos870° - sin780º =
Yuri [45]

Answer:

-sqrt(3)

Step-by-step explanation:

Solve each individually

8 0
3 years ago
What is the answer ?
mestny [16]
The answer is J. 2.0. This is because when you substitute in N = 2, you get (4.2 × 2)/1.2 = 8.4/1.2 = 7, and 7 is an integer.
I hope this helps!
8 0
3 years ago
if the area of a rectangle is 48 square feet and the width of the rectangle is 6 feet what is the perimeter of the rectangle
Over [174]

Answer:

28 ft

Step-by-step explanation:

the perimeter of the rectangle is 28 feet

3 0
3 years ago
How do i solve this
aleksandr82 [10.1K]
Replace g for -2 and h for 5.

(2(-2) + 9(5) -5) - (6(-2) - 4(5) +2)

Taking this one at a time,
2(-2) = -4, and 9(5) = 45.
6(-2) = -12 and -4(5) = -20

(-4 + 45 - 5) - (- 12 - 20 +2)

Let’s distribute the negative symbol to the right side.

(-4 + 45 - 5) + (12 + 20 - 2)

Then, we solve!
(-4 + 40) + (12 + 18)

(36) + (30)

= 66!
8 0
3 years ago
Read 2 more answers
Differentiating a Logarithmic Function In Exercise, find the derivative of the function.
devlian [24]

Answer:

Dy/Dx=x ( 2 ln ( x ) − 1 )/ ln ^2 ( x)

Step-by-step explanation:

We have this function and let's derive it in terms of x.

y =x^2/In x

Dy/Dx=(x^2/In x)'=2/lnx *(x^2)'-(x^2/In x)'=> 2 x *ln ( x ) − x *ln ^2 ( x ) =x ( 2 ln ( x ) − 1 )/ ln ^2 ( x)

7 0
3 years ago
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