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neonofarm [45]
3 years ago
11

When will a quadratic equation have two different real roots?

Mathematics
2 answers:
neonofarm [45]3 years ago
5 0

Answer:

A

Step-by-step explanation:

When a discriminant is positive it has two distinct roots. When a discriminant is negative it has no real roots. When a discriminant is zero it has two roots that are the same so that counts as one root.

svp [43]3 years ago
3 0
When the discriminators is greater than zero
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The population of a town was 7652 in 2016. The population grows at a rate of 1.6% annually.
Serggg [28]

Answer:

(A) The population's growth rate in equation form is y = (0.016t * 7652) + 7652

(B)  y = (0.016t * 7652) + 7652 =

y = (0.016(8) * 7652) + 7652 =

y = (0.128 * 7652) + 7652 =

y = 979.456 + 7652 =

y = 8631.456 (Or About) 8631

Step-by-step explanation:

(A) Y = the total population of the town. 0.016 is 1.6% just in its original form. T = the year in which were trying to find the town's total population. 7652 is the total population of the town in 2016. With this information, the equation reads, The total population of the town (Y) is equal to 16% (0.016) of the current year's population (T) added to 2016's population of 7652. (This last sentence can also be read what is 1.6% of the towns population in the year were trying to find. Because the population is always growing, 1.6% gets multiplied as to scale with the total population in year T)

(B) We just substitute (T) for 2024, or 8 years after 2016 (2024-2016) and simplify the equation we made.

7 0
3 years ago
The cost of tuition is a very important topic. The Alligator surveyed 500 randomly selected students and asked them if they supp
Veronika [31]

Answer:

Survey

Step-by-step explanation: A survey is a research method of collecting data from a particular target group through questions aimed at extracting specific information from them

6 0
3 years ago
Find the unit rate kenny reads 4 over 9 pages in 3 over 4 minutes
Leno4ka [110]

Answer:

Unit Rate = (4/9)/(3/5) = (4/9)(5/3) = 20/27 pages per minute

Report 01/07/18

Step-by-step explanation:

8 0
3 years ago
Can someone help me? Thanks!
kogti [31]

Answer:

A

Step-by-step explanation:

a^2+b^2=c^2 is the pythagorean theorem

solution a just has it flipped around

6 0
3 years ago
Read 2 more answers
Please help me solve this
Tpy6a [65]

Answer:

<u>1st pic:</u>

x = 49

top angle = 45

bottom angle = 108

far right angle = 27 degrees

<u>2nd pic:</u>

angle 1 = 88 degrees

angle 2 = 57 degrees

angle 3 = 35 degrees

angle 4 = 145 degrees

Step-by-step explanation:

<u>1st pic:</u>

you can find the far right angle by taking 153 and subtracting it from 180:

⇒ 180 - 153 = 27 degrees

you can find x by the following equation ⇒ x - 4 + 2x + 10 + 27 = 180

combine like terms ⇒ 3x + 33 = 180

subtract 33 from each side ⇒ 3x + 33 - 33 = 180 - 33 ⇒ 3x = 147

divide 3 on each side: ⇒ \frac{3x}{3} = \frac{147}{3}

x = 49

to find the top and bottom angles, substitute 49 for x:

top angle : x - 4

49 - 4 = 45 degrees

bottom angle: 2x + 10

2 x 49 + 10 = 108 degrees

<u>2nd pic:</u>

angle 1:

⇒ 180 - 92 = 88 degrees

angle 2:

⇒ 180 - 123 = 57 degrees

angle 3:

⇒ 180 - (88 + 57) = 35 degrees

angle 4:

⇒ 180 - 35 = 145 dgerees

4 0
2 years ago
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