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Eduardwww [97]
3 years ago
15

A test that is valid must have scores that fit a normal curve A be reliable B be normed on a random sample C predict future beha

vior D reveal important information
Mathematics
1 answer:
sasho [114]3 years ago
4 0

Answer:

A: be reliable

Step-by-step explanation:

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What is the range of the following list of numbers:
galina1969 [7]

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One wet weekend, 0.86 inches of rain fell on saturday. the next day, 1.52 inches of rain fell. how many inches of rain fell over
nataly862011 [7]

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Which measurement is equal to 6 kilograms?
Brut [27]
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2 years ago
For a quadratic function ƒ(x)=ax2+bx+c, ƒ(−1)<1, ƒ(1)>−1, and ƒ(3)<−4. What could be the sign of a?
denis23 [38]

Answer:

"a" must be negative

Step-by-step explanation:

The slope between points (-1, 1) and (1, -1) is a minimum of (-1-1)/(1-(-1)) = -1.

The slope between points (1, -1 and (3, -4) is a maximum of (-4-(-1))/(3-1) = -3/2.

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4 0
3 years ago
Emmanuel went to the store and
musickatia [10]

Answer:

$148.50

Step-by-step explanation

I solved this by using fractions.

x/450=33/100 is how I set up the problem. 33/100 represents 33%, while x/450 represents how much the jacket costs now.

I then went across and multiplied x by 100, and 450 by 33, which gave me 100x=14850. After this I divided each side by 100 to get 148.5, being the cost of the jacket.

7 0
3 years ago
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