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3 years ago

Factor this expression completely, then place the factors in the proper location on the grid.

Mathematics

2 answers:

slava [35]3 years ago

4 0

Is this how the question was written

Igoryamba3 years ago

3 0

This is not possible to factor, atleast not in the format you posted it :)

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After constructing a relative frequency distribution summarizing IQ scores of college students, what should be the sum of the re

saul85 [17]

Answer:

Option A. If percentages are used, the sum should be a 100%. If proportions are used, the sum should be 1.

Explanation:

The relative frequency can be measured as a ratio (proportion) or as a percentage.

As a ratio, the relative frequency is the number of times that the desired outcome is observed (either theoretically or experimentally) divided by the total number of possible outcomes (theoretically) or observed (experimentally).

As a percentage, the relative frequency is the ratio multiplied by 100.

This shows it mathematically:

relative frequency of event 1 = frequency of event 1 / number of events

relative frequency of event 2 = frequency of event 2/number of events

relative frequency of event n = freqquency of event n/number of events

Total relative frequency = sum of of relative frequencies

= sum of all (n) frequencies / number of events =

= number of events / number of events = 1

As a percentage, total relative frequency = 1 × 100 = 100

7 0

4 years ago

PLEASE HELP WILL GIVE BRAINLIEST TO CORRECT ANSWER

saw5 [17]

The answer you want is going to be A.

Hope it helps.

3 0

3 years ago

What number is 60 percent of 21.8

Mrac [35]

So, first, since 21.8 is a whole thing and you need a part, write x/21.8. Then, compare it to 60/100, or 60%. 100/21.8=4.76. So, divide 60/4.76 and your answer is 12.6.

Glad to help.

-A

8 0

4 years ago

A sea turtle swims at a speed of 27 kilometers per hour. A girl swims 14 decimeters per second. 1 m = 10 dm 1000 m = 1 km How mu

insens350 [35]

The sea turtle's speed is
$v_{t} = (27 \, \frac{km}{h} )*(1000 \, \frac{m}{km} )*( \frac{1}{60} \, \frac{h}{min} ) = 450 \, \frac{m}{min}$

The girl's speed is
$v_{g} = (14 \, \frac{dm}{s} )*( \frac{1}{10} \, \frac{m}{dm} )*(60 \, \frac{s}{min} ) = 84 \, \frac{m}{min}$

The ratio of the turtle's speed to that of the girl is
$\frac{v_{t}}{v_{g}} = \frac{450}{84} =5.357$

Answer: 5.36 faster (nearest hundredth)

4 0

4 years ago

Read 2 more answers

(05.02)

Amiraneli [1.4K]

Answer:

y = x + 1

Step-by-step explanation:

1) First, find the slope of the line between the two points. Whichever option has the same slope would be the right answer. To find this, use the slope formula $\frac{y_2-y_1}{x_2-x_1}$ . $x_1$ and $y_1$ represent the x and y values of one point, and $x_2$ and $y_2$ represent the x and y values of another point.

So, use the points given to answer the question. Substitute 4 for $x_1$ , 5 for $y_1$ , 8 for $x_2$ , and 9 for $y_2$ then solve:

$\frac{(9)-(5)}{(8)-(4)} \\= \frac{9-5}{8-4} \\= \frac{4}{4} \\= 1$

Therefore, the slope is 1.

2) Any line that is in a "y = a number" format is a horizontal line, and all horizontal lines have a slope of 0 - so the second option can't be the answer.

The rest of the options are in slope-intercept form, or y = mx + b format. Remember that the coefficient of the term with the x is the slope. Knowing this, y = x + 1 would need to be the answer since the coefficient of the term with the x is 1, and we already calculated that the slope is 1.

4 0

3 years ago