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2 years ago

Question 1 of 10

Mathematics

1 answer:

Annette [7]2 years ago

3 0

Answer:

B. Short-term memory

Step-by-step explanation:

Response variable is a dependent variable. It is dependent on the explanatory variable that is referred to as the independent variable.

In research study, the response variable is what is usually measured by the researcher. In the case given above, short-term memory is the response variable, which is dependent on exercise.

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A coin is tossed 6 times. Find the probability P(of exactly 4 occurrences of heads).

Angelina_Jolie [31]

Let's draw!

H    1 T
HT    2       HT
HTHT 3         HTHT
HTHTHT 4       HTHTHT
HTHTHTHT 5       HTHTHTHT
HTHTHTHTHT 6    HTHTHTHTHT

You can count the probabilities using this.

HHHHTT
HHHTHT
HHTHHT
HHTHTH
HHHTTH
HTHHHT
HTTHHH
HTHTHH
HTHHTH

THHHHT
THHHTH
THHTHH
THTHHH
TTHHHH

Therefore, I think the probability is 14/64. Not sure so check my work.
14 combinations
64 outcomes (2+4+8+16+32+64 or 2^n)

7 0

2 years ago

Which of the following ratlos is not equivalent to 6:10?

Len [333]

Answer:

24/45 or 9/15

Step-by-step explanation:

none of these is equivalent to 6:10

7 0

2 years ago

What is the percent of change if 10 is decreased to six

pychu [463]

If 10 is decreased to 6 it would be 60% a

6 0

2 years ago

Read 2 more answers

Put the following equation of a line into slope-intercept form, simplifying all fractions.

kicyunya [14]

Answer:

3x - y = -3

Step-by-step explanation:

divide everything by 4, the greatest common factor. That's all you need to do.

4 0

2 years ago

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The angle of depression from the top of a cruise ship to the top of a sailboat is 22. Sitting above water, the cruise ship is 23

dusya [7]

Answer:

The distance between the cruise ship and the sail boat is 517 feet.

Step-by-step explanation:

The cruise ship is 236 feet tall, and the sailboat is 236 tall; this means the distance between the top of the cruise ship and the top of the sail boat is

236 feet - 27 feet = 209 feet.

We also know that the angel of depression from the top of the cruise ship to the bottom of the cruise ship is 22°. This forms a right triangle as shown in the figure attached.

Now from trigonometry we get:

$tan \: \theta = \dfrac{209}{d}$

$d= \dfrac{209}{tan\:\theta }$

$\boxed{d=517ft}$

The distance between the cruise ship and the sailboat is 517 feet.

3 0

2 years ago