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Jlenok [28]
2 years ago
5

Write the quadratic equation in standard form with the given roots. {1/2,-8}

Mathematics
1 answer:
frosja888 [35]2 years ago
3 0
The answer is y=x^2+15x/2-4. 
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Sandy lives 200 m from school. One
lisov135 [29]

Answer:

Following are the solution to the given question:

Step-by-step explanation:

For question 1:

Calculating the speed between A and B:

Time\ (t)= 1 \ hours\\\\Distance\ (d)= 10 \ km\\\\V=\frac{d}{t}=\frac{10}{1}= 10 \ kmph

For question 2:

Calculating the speed between B and C:

Time\ (t)= (2-1)=1 \ hours\\\\Distance\ (d)= (15-10)= 5\ km\\\\V=\frac{d}{t}=\frac{5}{1}= 5 \ kmph\\  

For question 3:

In this the speed between A and B is the double to speed between B and C.

3 0
3 years ago
According to a company's website, the top 15% of the candidates who take the entrance test will be called for an interview. You
galben [10]

Answer:

The minimum score required for an interview is 77.252

Step-by-step explanation:

We solve this using z score formula

z = (x-μ)/σ, where x is the raw score, μ is the population mean, and σ is the population standard deviation.

Top 15% of the candidates is a ranking that is equivalent to = 100 - 15% = 85th percentile.

The z score of 85th percentile = 1.036

Mean = 70

Standard Deviation = 7

Minimum score = raw score = ???

Hence:

1.036 = x - 70/7

Cross Multiply

1.036 × 7 = x - 70

7.252 = x - 70

x = 70 + 7.252

x = 77.252

The minimum score required for an interview is 77.252

6 0
3 years ago
If a 11 inch wheel cost $21.35 what is the cost per square inch
Natali [406]

Answer:

$1.94 per square inch

8 0
3 years ago
Last week, Leah worked 25 hours on weekdays and 11 hours on the weekend. Which ratio compares the number of hours Leah worked on
Akimi4 [234]

Answer:

25:36

Step-by-step explanation:

the number of hours on weekdays which is 25, and the total hours she worked is 25+11 which is 36, so it is 25:36

4 0
2 years ago
Can someone please help me with this?? I NEED THIS ASAP
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hi ate you know crush kita <3

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