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jeka57 [31]
3 years ago
13

Change to standard form 2.57x10^-4

Mathematics
2 answers:
solniwko [45]3 years ago
8 0
Your answer is 0.000257
katrin2010 [14]3 years ago
7 0
It's the mean of (2.57 x 10) minus 4
The mean is the average.
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Please could someone help me?
ad-work [718]

Answer:

C

Step-by-step explanation:  6  23  17  16

15 is the highest value

5 0
2 years ago
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F(x) = 4x² – 17x+3
Svet_ta [14]

Answer:

discriminant: 241

2 real roots

Step-by-step explanation:

The discriminant is the part of the quadratic equation that is under the sqare root

x=(-b±√(b²-4ac))/2a

discriminant: b²-4ac

We also know that a quadratic equation is in the form ax²+bx+c = 0, so we can plug in the values we know from our equation to find the discriminant.

a=4

b=-17

c=3

(-17)^2-4(4)(3)

We also know that if the discriminant

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is negative we have no real roots

8 0
3 years ago
Find (f*g)(x) f(n)=2n; g(n)= -n-4
andreyandreev [35.5K]
-2x^2-8 is the answer good luck
3 0
2 years ago
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The function p(x) = −2000x2 + 18000x − 15000 models the monthly profit P of a smoothie company, where x represents the price per
ohaa [14]

Answer:

Step-by-step explanation:

Givem the profit function

p(x) = −2000x2 + 18000x − 15000

We are to generate the price range that will generate a monthly profit of at least $25,000

Substitute into the function we have;

25000 = −2000x2 + 18000x − 15000

Divide through by 1000

25 = -2x²+18x-15

Rearrange

-2x²+18x-15-25 = 0

2x²-18x+40 = 0

Divide through by 2

x²-9x+20 = 0

Factorize

x²-5x-4x+20 = 0

x(x-5)-4(x-5) = 0

x-4 = 0 and x-5 = 0

x = 4 and x = 5

Hence the price range that will generate a monthly profit of at least $25,000 is between $4 and $5 inclusive

8 0
3 years ago
Simplify : 14z + 8y - 5 + 9y - 10z
Ugo [173]

Answer:

17y+4z-5

Step-by-step explanation:

6 0
2 years ago
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