How can you check that you have correctly convert frequencies to relative frequencies?

1 answer:

7 0

You could add up all the relative frequencies to make sure that you have 100% accounted for.

The relative frequency is the percent out of 100% for a particular item. If you have found the relative frequency for all items, it should equal 100%.

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In a right triangle abc, cd is an altitude, such that ad=bc. Find ac, if ab=3 cm, and cd= square root 2 cm.

Mashcka [7]

AC² + BC² = AB² AD² + CD² = AC²

BC² = AB² - AC² BC² + CD² = AC² (AD=BC is given)

BC² = AC² - CD²

AB² - AC² = AC² - CD² (both sides were = to BC²)

AB² + CD² = 2AC²

(3)² + (√2)² = 2AC² (AB=3 and CD=√2 were given)

9 + 2 = 2AC²

11 = 2AC²

$\frac{11}{2}$ = AC²

$\sqrt{\frac{11}{2} }$ = AC

$\frac{11\sqrt{2} }{2}$ = AC

7 0

3 years ago

8 minus 3 2/5 I do t know how to add a fraction to the 8. Are you outs there SuperSychoGamer

uysha [10]

I believe it is, 9/5.

Mixed fraction: 1 4/5.

4 0

3 years ago

The U.S based motorcycle manufacturer says that it expects to build 138,000 motorcycles this year, up from 128,000 last year. Fi

MrMuchimi

138,000/ 128,000 = 7.8125% Just divide new value into old value

8 0

3 years ago

Six chicken nuggets have 204 calories. How many calories are in 9 chicken nuggets

professor190 [17]

Answer:

306 calories

Step-by-step explanation:

By looking at the problem, we can conclude the number of chicken nuggets and the calories are directly related, when the amount of chicken nuggets go up, the calories also go up, proportionally. Because of this, we can set up an equation:

6 / 204 = 9 / x

Where x is the amount of calories in 9 chicken nuggets.

Now, we can simplify by cross multiplying:

6x = 1836

x = 306 calories

7 0

3 years ago

Read 2 more answers

Three-fourths divided by 2 is?

Mariana [72]

Answer: i think 1/4

Step-by-step explanation: maybe i might be incorrect