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3 years ago

God bless. <3 please show work, thank yoy

Mathematics

1 answer:

Georgia [21]3 years ago

4 0

F(x) - g(x) = 9x^3 + 2x^2 - 5x + 4 - ( 5x^3 - 7x +4)
f(x) - g(x) = 9x^3 + 2x^2 - 5x + 4 - 5x^3 + 7x - 4
f(x) - g(x) = 4x^3 + 2x^2 + 2x
f(x) - g(x) = 2x(2x^2 +x +1)

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Choose the equation that represents the line that passes through the point (6, −3) and has a slope of one half.

Goshia [24]

Answer:

$y+3=\frac{1}{2} \left(x-6)$

Step-by-step explanation:

Point slope form:

$y-y_1=m\left(x-x_1\right)$

Note:

m represents the slope

(x1,y1) represents the coordinate point

Our answer would be $y+3=\frac{1}{2} \left(x-6)$

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3 years ago

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just olya [345]

The power increases by 21% per hour. 21% written as a decimal is 0.21.

Because it increases you would multiply the starting value by 1.21 times the number of hours (t).

That needs to be less than or equal to 100,00

The equation would be:

C: 15,040(1.21)t ≤ 100,000

6 0

3 years ago

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Consider a binomial distribution of 200 trials with expected value 80 and standard deviation of about 6.9. Use the criterion tha

mote1985 [20]

Answer:

The correct answer is option 'a' : 120 is more than 2.5 standard deviations above the expected value.

Step-by-step explanation:

For an exponential distribution we have

The expected value μ = 80

No of trails n = 200

Thus we have

$p=\frac{80}{200}=0.4$

The deviation is related to expected value and probability as

$\sigma =\sqrt{np(1-p)}\\\\\therefore \sigma =\sqrt{200\cdot 0.4\cdot (1-0.4)}=6.9$

Thus the values between the given deviation is

$x_{1}=80-2.5\times 6.9=62.75\\\\x_{2}=80+6.9\times 2.5=97.25$

Now since 120 successes are out of the range of [62.75,97.25] thus 120 is more than the expected value.

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3 years ago

When y is 4, p is 0. 5, and m is 2, x is 2. If x varies directly with the product of p and m and inversely with y, which equatio

dmitriy555 [2]

Answer:

$\dfrac{xy}{pm}=8$

Step-by-step explanation:

If x varies directly as the product of p and m, and inversely with y, the relation can be written ...

x = k(pm)/y . . . . where k is the constant of proportionality

This can be solved for k:

k = xy/pm

For the given values, the value of k is ...

k = (2)(4)/((0.5)(2)) = 8

Then the relation between the variables can be written ...

(xy)/(pm) = 8

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2 years ago

Please help, if you do not know do not answer please!

Paul [167]

Answer:

1,3 are functions

2,4 are not

6 0

3 years ago

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