3 years ago

If IQ scores are normally distributed with a mean of 100 and a standard deviation of 15,

Mathematics

1 answer:

never [62]3 years ago

6 0

Answer: Smart.

Average is like 80

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sergey [27]

Answer: 1/10 is greater; niether its equal; 2 1/2, .25, -.2, -1/2, -4/5

Step-by-step explanation:

1/10 is a tenth and .09 is a hunderedth

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3 years ago

Does this set of ordered pairs represent a function? Why or why not? {(–1, 5), (0,-3), (2,7), (4,0), (7, 5)}

Kisachek [45]

Yes, it does. Because these points do respect the "law" that for each "x" there is only one "y" that corresponds to it

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aniked [119]

2/9 divided by 1/2. invert the second fraction and multiply

2/9 * 2/1 = 4/9

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3 years ago

A snow storm hit Sanford

Brut [27]

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Step-by-step explanation:

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3 years ago

Three friends each have some ribbon. Carol has 90 inches of ribbon, Tino has 7.5 feet of ribbon, and Baxter has 3.5 yards of rib

erastovalidia [21]

Answer: 306 inches or 25.5 feet or 8.5 yards.

Step-by-step explanation:

Given: Carol has 90 inches of ribbon, Tino has 7.5 feet of ribbon, and Baxter has 3.5 yards of ribbon.

1 feet = 12 inches

length of ribbon Tino has = 12 x 7.5 = 90 inches

1 yard = 36 inches

length of ribbon Baxter has = 3.5 x 36 = 126 inches

Total ribbon they have = (length of ribbon Carol has) + (length of ribbon Tino has) + (length of ribbon Baxter has)

= (90+90+126) inches

= 306 inches

In feet , Total ribbon = $\dfrac{306}{12}\text{ feet}$ $[\text{ 1 inch}=\dfrac{1}{12}\text{ feet}]$

$=\text{25.5 feet}$

In yards, Total ribbon = $\dfrac{25.5}{3}\text{ yards}$ $[\text{1 feet}=\dfrac{1}{3}\text{ yard}]$

$=\text{ 8.5 yards}$

Hence, the total length of ribbon the three friends have is 306 inches or 25.5 feet or 8.5 yards.

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3 years ago