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3 years ago

Compound inequalities

Mathematics

1 answer:

Novosadov [1.4K]3 years ago

7 0

Thank goodness for you I do not have a credit for the math question mark so I do thank goodness for you I did not know what you did do not answer please please answer answer question answer answer me thank the answer please please answer please please thank thank goodness

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Can someone please help me! Please!!!! I'll give branlist

Step2247 [10]

I believe that the answer is b...the second one down.
im not completely sure. i have not don

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3 years ago

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Last year at a certain high school, there were 125 boys on the honor roll and 80 girls on the honor roll. This year, the number

Elodia [21]

Answer:

6.8% decrease

Step-by-step explanation:

a drop of 8% means that only 92% of 125 boys remained on honor roll from last year; .92 x 125 = 115

a drop of 5% means that only 95% of 80 girls remained on honor roll from last year; .95 x 80 = 76

total number of students on honor roll last year = 125 + 80 = 205

total number of students on honor roll this year = 115 + 76 = 191

percent of change = (191 - 205) ÷ 205 = -14/205 = -.068

-.068, which represents a 6.8% decrease

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2 years ago

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Marianna [84]

Answer:

Step-by-step explanation:

3 and 3/7 ok hope it helps

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3 years ago

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Mattie uses the discriminant to determine the number of zeros the quadratic equation 0 = 3x2 – 7x + 4 has. Which best describes

Eduardwww [97]

For $ax^2+bx+c=0$ the discriminant is $b^2-4ac$

there are 3 basic cases of what happens for different discriminants
1. if the discriminant is less than 0, then there are no real zeroes
2. if the discriminant is 0, then it has 1 zero
3. if the discriminant is greater than 0, it has 2 zeroes

so given
$0=3x^2-7x+4$
a=3,b=-7,c=4
thus the discriminant is $(-7)^2-4(3)(4)=49-48=1$
the discriminant is 1. 1 is positive, thus the equation has 2 zeroes because the discriminant is greater than 0

the answer is the equation has two zeroes because the discriminant is greater than 0

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3 years ago

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Determine whether the source given below has the potential to create a bias in a statistical study.A certain medical organizatio

Tpy6a [65]

Answer:

There appears to be statistical bias.

Step-by-step explanation:

There is a likelihood of potential bias in the experiment. This is is because the results can be manipulated so that they can be in line with the organization's objectives and of the funders.

Only verified and quantified surveys are able to provide statistically unbiased results.

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3 years ago