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Anvisha [2.4K]
3 years ago
13

Will someone please check my answers asap?? will give a brainliest

Mathematics
1 answer:
Usimov [2.4K]3 years ago
3 0

Your choices are correct.

1. adding -3 to the function shifts its graph downward by 3 units.

2. 7^(2x) = (7^2)^x = 49^x

3. f(0) = -6; g(0) = -3, f(0) = 2×g(0)

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Solve. open parentheses square root of 7 close parentheses to the 6 x power = 49x-6
Sveta_85 [38]
The equation is(√7)^6x = 49x - 6
This equation can be solved by iteration.

Rearranging:
x = ( (√7)^6x + 6 )/49

We start with a value of x = 3.
This value can be substituted to the right side and new value of x can be obtained. This new value can be substituted again to the right side of the equation and another new value for x is obtained. This process is repeated until the old and new values of x are the same.

The result is,x = 0.5
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Dan earns £7.80 per hour. How much will he earn for 7 hours work
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Answer: £54.60

Step-by-step explanation:

7.80 x 7 = £54.60

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Answer:

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8 0
3 years ago
One method of slowing the growth of an insect population without using pesticides is to introduce into the population a number o
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3 years ago
The Weibull distribution is widely used in statistical problems relating to aging of solid insulating materials subjected to agi
fenix001 [56]

Answer:

Step-by-step explanation:

Given that

\alpha =2.5 ,\beta =220

The weibull distribution with parameters \alpha \ \ and \ \ \beta

where \alpha =0 \ \ , \beta =0

F(x,\alpha ,\beta) \left|\begin{array}{cc}\frac{\alpha }{\beta } x^{\alpha-1e^-(x/\beta)^\alpha  &x\geq 0\\0&x

Then,

F(x,\alpha ,\beta )=\left|\begin{array}{cc}0&x

A) The probability that a specimen's lifetime is at most 250 is

P(X\leq 250)=F(250,2.7,220)\\\\=1-e^-^(250/220)^{2.7}\\\\=1-0.2436\\\\=0.7564

The probability that the specimen's life time is more than 300 is

P(X>300)=1-P(X\leq 300)\\\\=1-F(300;2.7,220)\\\\=1-(1-e^-^{(300/220)^{2.7}

=e^-^{(300/220)^{2.7}

= 0.0992

b)The probability of the specimen's lifetime is between 100 and 250

P(100

c) The value such that exactly 50% of all specimens have lifetimes exceeding that value is

P(X>x)=0.50\\\\1-P(X

x = 192.07

7 0
3 years ago
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