1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
loris [4]
3 years ago
11

Chứng minh: x² - 8x + 17 > 0

Mathematics
1 answer:
monitta3 years ago
8 0

Answer: All Real Numbers

x2−8x+17>0  

x2−8x+17=0

For this equation: a=1, b=-8, c=17

1x2+−8x+17=0

x=

−b±√b2−4ac

2a

(Use quadratic formula with a=1, b=-8, c=17)

x=

−(−8)±√(−8)2−4(1)(17)

2(1)

x=

8±√−4

2

All real numbers

You might be interested in
UVOISINOULLIV HU
Gala2k [10]
<h3>Total snow fall for three days is 8.75 inches</h3>

<em><u>Solution:</u></em>

Given that,

Snow fell over the past three days

First\ day = 3\frac{2}{4}\ inches = \frac{14}{4}\ inches\\\\Second\ day = 3\frac{2}{4}\ inches = \frac{14}{4}\ inches\\\\Third\ day = 1\frac{3}{4}\ inches = \frac{7}{4}\ inches

<em><u>What was the total snowfall for the three days?</u></em>

Total snowfall = first day + second day + third day

Total\ snowfall = \frac{14}{4} + \frac{14}{4} + \frac{7}{4}\\\\Total\ snowfall = \frac{14 + 14 + 7}{4}\\\\Total\ snowfall = \frac{35}{4} \text{ or } 8.75\ inches

Thus total snow fall for three days is 8.75 inches

5 0
3 years ago
Hshshjsjsjsjsjsjjsjs
Ulleksa [173]

Answer:

3 ÷ 8

Step-by-step explanation:

1. A fraction has two parts: a numerator and a denominator. The numerator is the dividend (the number that is to be divided by the divisor), and the denominator is the divisor (the number that is divided into the dividend).

2. Given the information above, we know that 3 is the numerator, and 8 is the denominator. This means 3 ÷ 8 = 3/8.

7 0
3 years ago
How do you graph n &gt; -9?
Harman [31]

Answer:

In order to graph this follow these steps

Put an OPEN dot on the number -9 and then draw or color a line to the right of the line.

3 0
3 years ago
The parabola y=x^2 is scaled vertically by a factor of 5/2. What is the equation of the new parabola?
Ray Of Light [21]
For this case we have the following transformation:
 Assume k> 0
 To graph f (x) + k, move the graph k units up.
 Applying the transformation we have:
 y = x ^ 2 + 5/2
 Answer:
 
The equation of the new parabola is:
 
y = x ^ 2 + 5/2
4 0
3 years ago
Read 2 more answers
Write the slope intercept form Through (1, -4), parallel to y = -4/3x +3
Grace [21]

Answer:

Hope this is correct

8 0
4 years ago
Other questions:
  • If a truck gets 14 mile to the gallon on average, how much carbon dioxide is emitted into the atmosphere when the truck travels
    9·2 answers
  • The number of blue chips is 3 more than twice the number of red chips
    13·2 answers
  • Question 15<br> Evaluate x = y for x = 3 and y = 12.
    8·1 answer
  • Reflect the point (8,0) across the y-axis
    8·2 answers
  • Which representation shows y as a function of x. <br><br> I will mark branlist
    7·2 answers
  • x can do a job in 16 days and y can do the same jovb in 20 days x y and z can do the job in 7.5 days. alone z can do the same jo
    12·2 answers
  • Los números 4,3×-3,4× esta en progesion aritmética cuál es el cuarto termino
    7·1 answer
  • If three times a number is increased by 4, the result is -8. Determine the number.
    11·1 answer
  • Write an equation in slope intercept form (4,-2) (0,-5)​
    11·1 answer
  • Find the rate of change of the linear function shown in the graph. Then find the initial value.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!