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babunello [35]
3 years ago
11

In a recent study, volunteers who had 8 hours of sleep were three times more likely to answer questions correctly on a math test

than were sleep-deprived participants. Complete parts a through d?
A) The sample is the sleep-deprived participants in the study.
B) The sample is the responses of the volunteers in the study.
C) The sample is the amount of sleep the volunteers got in the study.
D) The sample is the math questions in the study.
Mathematics
1 answer:
kumpel [21]3 years ago
6 0

Answer:

(c) the sample is amount of sleep the volunteers got in the study.

Step-by-step explanation:

sample: this is a small part that is intending to show what a big part is all about.

volunteer: a person who does something willingly.

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What properties makes the equation ture?
Oksi-84 [34.3K]

Answer:

A.2z+5=5+2z

Associative properties

Distributive properties

Commutative properties

Indentity propertie

5 0
3 years ago
Question 1
Flauer [41]

Answer:

<em>Correct choice: b. $1221.00</em>

Step-by-step explanation:

<u>Compound Interest</u>

It occurs when the interest is reinvested on each compounding period. When it happens interest in the next period is then earned on the principal sum plus previously accumulated interest.

The formula is:

{\displaystyle A=P\left(1+{\frac {r}{n}}\right)^{nt}}

Where:

A = final amount

P = initial principal balance

r = interest rate

n = number of times interest applied per time period

t = number of time periods elapsed

The initial deposit on a savings account is P = $1000. The account provides an annual rate of r = 4% = 0.04 compounded monthly. The value of n is 12 since there are 12 months in a year. The money is left in the account for t=5 years. Substituting the values:

{\displaystyle A=\$1000\left(1+{\frac {0.04}{12}}\right)^{12*5}}

{\displaystyle A=\$1000\left(1.00333}\right)^{60}}

A = $1221

Correct choice: b. $1221.00

5 0
2 years ago
True or false help pls
Alex73 [517]

Answer:

Answer: False

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
A line intersects the points (0,-4) and (1,2) what is the slope intercept equation for this line?
agasfer [191]

Answer:

y=6x-4

Step-by-step explanation:

First we have to know how to write a equation in Slope-Intercept Form!

Slope-Intercept Form: y=mx+b

where y = y axis, m = slope, x = x intercept and b = y-intercept

Now start by solving the slope

To find the Slope, you must find two points

Two points will be: (0,-4) and (1,2)

Then use the Slope-Formula to identify the slope

m=slope

m=\frac{y_2-y_1}{x_2-x_1}

m=\frac{2--4}{1-0}

m=\frac{6}{1}

m=6

The Slope is 6

The y-intercept is already given by the point (0, -4)

Note: (this goes to this situation because the point has a 0 of x intercept)

doomdabomb: "I decided to answer this for fun just to earn some points but if you want you can take a look at this beautiful answer that i just made"

5 0
3 years ago
Use the Distance Formula and the Pythagorean Theorem to find the distance, to the nearest tenth, from T(2, –2) to W(–7, 3).
morpeh [17]

Answer:

10.3 units

Step-by-step explanation:

coordinate points are

T(2, -2) =(x1 , y1)

W(-7, 3) =(x2 , y2)

distance formula = \sqrt{(x2 -x1)^2 + (y2 -y1)^2}

=\sqrt{(-7-2)^2 + {3-(-2)}^2

=\sqrt{(-9)^2 + (3+2)^2

=\sqrt{81 + 5^2

=\sqrt{81 + 25

=\sqrt{106  

=10.29563014

=10.3 (after converting it to the nearest tenth)

3 0
2 years ago
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