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zhuklara [117]
3 years ago
7

The proper natation for a normal distribution with a mean of 250 and a standard deviation of 25 is?

Mathematics
1 answer:
Zolol [24]3 years ago
5 0
N(250,25)
That's all it is
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NO LINKS!!!!!
8090 [49]

9514 1404 393

Answer:

  5x^2 +10x = -5

Step-by-step explanation:

The equation will have one solution when the discriminant is zero.

In standard form, the equation is ...

  ax^2 +10x -c = 0

The discriminant of the equation ax^2+bx+c=0 is  ...

  b^2 -4ac

so the discriminant of your equation is ...

  10^2 -4a(-c) = 100 +4ac

We want that to be zero, so we require ...

  100 +4ac = 0

  25 +ac = 0

  ac = -25

Any pair of values of 'a' and 'c' that have a product of -25 will satisfy the requirement. As you state, one possible pair is a = 5 and c = -5. Putting these values into the given equation makes it ...

  5x^2 +10x = -5 . . . . . the equation with a=5, c=-5

_____

<em>Additional comment</em>

Your problem statement does not require that 'a' be non-zero. If <em>a=0</em>, then the equation will have one real solution for <em>any value of c</em>.

If you restrict the solutions to integers, then possibilities include ...

  (a, c) = (1, -25), (5, -5), (25, -1), (-25, 1), (-5, 5), (-1, 25)

6 0
2 years ago
alvaro pesa 13 kg menos que javier y 6 kg mas que maria si alvaro pesa 38 kg cuanto pesan javier y maria
Nataliya [291]

<span>Maria tiene 32 kg y javier tiene 51 kg
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(google translate, bad spanish)
5 0
3 years ago
Will give brainliest!
Ghella [55]
D tethetjwtjwtjwhwtjwtj
3 0
3 years ago
Can somebody help me find the surface area of this
-Dominant- [34]

Answer:

G. 7600 cm^{2}

Step-by-step explanation:

Step 1: Deconstruct the shape

2 rectangles with dimension of 50 cm x 20 cm

2 rectangles with dimension of 40 cm x 20 cm

2 rectangles with dimension of 40 cm x 50 cm

Step 2: Find surface area of the shapes

2(50 x 20) = 2000 cm^{2}

2(40 x 20) = 1600 cm^{2}

2(40 x 50) = 4000 cm^{2}

Step 3: Add the surface areas together

2000 + 1600 + 4000 = 7600 cm^{2}

Therefore the surface area is 7600 cm^{2} and the answer is G.

4 0
3 years ago
Can someone please help me with this question
Cerrena [4.2K]

Answer:

5x+3>23

Step-by-step explanation:

x \geq4

8 0
3 years ago
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