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natali 33 [55]
2 years ago
10

10 POINTS!!!

Mathematics
1 answer:
myrzilka [38]2 years ago
5 0
The correct answer for b^2 - 4ac (also known as the discriminant) should be 57 or answer C. 

You first must solve the equation for 0.
<span>1 = 2x2<span> + 7x ---> subtract 1 from each side
</span></span>0 = 2x^2 + 7x - 1

Now we can find a as the coefficient of the x^2 term, b as the coefficient for the x term an c as the number at the end. 
a = 2
b = 7 
c = -1

Now we can plug these values in for b^2 - 4ac

b^2 -4ac
(7)^2 - 4(2)(-1)
49 + 8
57
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kozerog [31]

The following data set is A population ⇒ answer A

Step-by-step explanation:

Lets revise the definition of each choice

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can be identified by at least one common characteristic for the

purposes of data collection

2. A sample is just a part of a population

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The following data set is A population

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3 0
2 years ago
A zoo has two male lions one sixth of the lions are male lions how many lions are there at the zoo
bezimeni [28]
2 = 1/6 so 6 times two equals 12. 2 is 1/6 of 12, there are 12 lions.
4 0
3 years ago
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What part of the coordinate plane is equidistant from the points A(-3,2) and B(3,2)? Explain.
blondinia [14]
1st find the midpoint
-3 + 3 = 0/2 = 0 for the x
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5 0
3 years ago
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A stereo is marked down $105. if this is a 25% decrease, find the cost price?
Aneli [31]
Answer:420$
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3 0
3 years ago
One pound of ground beef is $3.09. How much is 4.5 pounds? Round to the nearest hundredth, if necessary.
olga55 [171]

Since 1 pound is $3.09, 4.5 pounds will be:

4.5*3.09=13.905

It says to round to nearest hundredth, so your answer is $13.91.

5 0
3 years ago
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