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2 years ago

6

A researcher determines the probability that a research study will reveal something new is p = 0.80. What is the probability tha

t the study will reveal something new or not reveal something new?

2 answers:

SVETLANKA909090 [29]2 years ago

6 0

Answer:

the probibilty is 1

Step-by-step explanation:

dezoksy [38]2 years ago

3 0

Answer:

1

Step-by-step explanation:

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-x^4y^2+7x^3y^3-3xy^5+2x^2y^4 in descending powers of x

muminat

Answer:

-x^4y^2 +7x^3y^3 +2x^2y^4 -3xy^5

Step-by-step explanation:

The powers of x in the terms of the given expression are ...

4, 3, 1, 2

so, we want to swap the last two terms to put them in the desired order:

-x^4y^2 +7x^3y^3 +2x^2y^4 -3xy^5

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2 years ago

Help evaluating the question

serg [7]

X=1 so it is 1×1×1=1 so.... it is 19+1

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3 years ago

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Louisa ran at an average speed of five miles per hour along an entire circular park path. Calvin ran along the same path in the

docker41 [41]

Answer:

15 miles

Step-by-step explanation:

Let $x$ be the miles in the circular park path, $t_{L}$ the time Louisa takes to finish and $t_{C}$ the time Calvin takes to finish both in hours.

Then $x$ , the longitude is equal to the velocity times the time used to finish. So

$x=5t_{L}$

$x=6t_{C}$

And the difference between Louisa's time and Calvin' time is 30 minutes, half an hour. So:

$t_{C}=t_{L}-0.5$

Three equations, three unknowns, the system can be solved.

Equalizing the equation with x :

$5t_{L}=6t_{C}$

In this last equation replace $t_{C}$ with the other equation and solve:

$5t_{L}=6(t_{L}-0.5)\\ 5t_{L}=6t_{L}-3\\ 3=6t_{L}-5t_{L}\\ 3=t_{L}\\ t_{L}=3$

With Louisa's time find x:

$x=5t_{L}\\ x=5(3)\\ x=15$

7 0

2 years ago

The sum of two numbers is 44, and the larger number is 2 more than the smaller number. What is the smaller number?

leonid [27]

S + L = 44 and L = S +2

6 0

3 years ago

G(x)=3^x +1 and f(x)=3x+1 which values of x makes f(x) =g(x) true

fomenos

Answer:

x=1

Step-by-step explanation:

3^x +1

f(x)=3x+1

f(x) =g(x)

3x +1 =3^x +1

Subtract 1 from each side

3x = 3^x

Let x =1

3*1 = 3^1

3=3

5 0

3 years ago

Read 2 more answers