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3 years ago

6

Samuel can type nearly 40 words per minute. Use this information to find the number of hours it would take him to type 3.8 × 105

words.

2 answers:

lora16 [44]3 years ago

3 0

Answer:

<h2>3.8x105=399</h2>

Step-by-step explanation:

LekaFEV [45]3 years ago

3 0

3.8x105. 399. It’s cross multiplication

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Write the explicit formula for the sequence {9,6,3,0,-3,...}.

pantera1 [17]

Hi
The formula starts with x=9. So the formula would be x-3, than you get a different number and you fill x with that number do this over and over and you will get to -3 or even lower

5 0

3 years ago

Recall the following study: Over a 17-year period researchers studied a sample of 707 individuals from a single community. They

IgorC [24]

Answer:

Hence the answer is option c ; poverty and neighborhood conditions

Step-by-step explanation:

From the research, it is well known that both the dependent variable and independent variable will be taken into consideration before arriving at a conclusion.

A dependent variable is the variable that is been studied or measured i.e the results of a scientific research.

An independent variable is a variable that is been altered or controlled for and whose effects are compared to the results of the dependent variable, as such the results of a dependent variable is dependent on the alteration of the parameters of an independent variable.

From the question ; the dependent variable is sample of 707 individuals from a single community while the independent variable ; the number of hours each individual spent watching television during adolescence and early adulthood.

The word confound in statistics implies a variable which has a greater effects on both the dependent and the independent variable.

Hence the answer is option c ; poverty and neighborhood conditions

7 0

4 years ago

[30 POINTS] Please help!!!

Len [333]

Answer:

Part 1) $y=1.5x+5$

Part 2) $y=-(2/3)x-(11/3)$

Part 3) $y=0.25x+2.75$

Part 4) $y=-2x+5$

Part 5) $y=0.5x-1$

Part 6) The graph in the attached figure

Step-by-step explanation:

Part 1) we have

$m=3/2=1.5$

$point(-2,2)$

The equation of the line into point slope form is equal to

$y-y1=m(x-x1)$

substitute

$y-2=1.5(x+2)$

$y=1.5x+3+2$

$y=1.5x+5$

Part 2) we know that

If two lines are perpendicular

then

the product of their slopes is equal to minus one

so

$m1*m2=-1$

the slope of the line 1 is equal to

$m1=1.5$

Find the slope m2

$1.5*m2=-1$

$m2=-2/3$

Find the equation of the line 2

we have

$m2=-2/3$

$point(-7,1)$

The equation of the line into point slope form is equal to

$y-y1=m(x-x1)$

substitute

$y-1=(-2/3)(x+7)$

$y=-(2/3)x-(14/3)+1$

$y=-(2/3)x-(11/3)$

Part 3) we have

$m=1/4=0.25$

$point(1,3)$

The equation of the line into point slope form is equal to

$y-y1=m(x-x1)$

substitute

$y-3=0.25(x-1)$

$y=0.25x-0.25+3$

$y=0.25x+2.75$

Part 4) we have

$m=-2$

$b=5$ -----> y-intercept

we know that

The equation of the line into slope intercept form is equal to

$y=mx+b$

substitute the values

$y=-2x+5$

Part 5) we have that

The slope of the line 4 is equal to $-2$

so

the slope of the line perpendicular to the line 4 is equal to

$-2*m=-1\\m=(1/2)=0.5$

therefore

in this problem we have

$m=0.5$

$point(-2,-2)$

The equation of the line into point slope form is equal to

$y-y1=m(x-x1)$

substitute

$y+2=0.5(x+2)$

$y=0.5x+1-2$

$y=0.5x-1$

Part 6)

using a graphing tool

see the attached figure

3 0

3 years ago

Dondorp et al. (2010) carried out a large clinical trial that compared the effectiveness of two drugs, artesunate, and quinine,

Novosadov [1.4K]

Answer:

Option C is correct.

Step-by-step explanation:

The third one is right because the null hypothesis implies with all therapies, identical percent of kids suffer, and that simply means that there really is no distinction in drug therapies.

So, it defines the probabilities among both treated groups unless there was really no variation among drug therapies.

Due to the following reasons it describes that the following option is correct according to the statement.

6 0

4 years ago

miguuela wound a garden hose around a circular reel if the diameter of the Rails 10 inches how many inches of hose with line on

IgorLugansk [536]

Answer:

31.4 inches

Step-by-step explanation:

The circumference (C) of a circle of diameter d is given by the formula ...

... C = π·d

where π is the transcendental constant approximated by 3.14159265...

The circumference of a circular reel 10 inches in diameter is ...

... C = π·(10 in) ≈ 31.4 in

7 0

4 years ago