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Anestetic [448]
3 years ago
9

How many real roots does a quadratic equation have if the discriminant is 10

Mathematics
1 answer:
VLD [36.1K]3 years ago
3 0

Answer:

2

Step-by-step explanation:

if the discriminant of the quadratic equation is 10 then it will have 2 real roots.

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Y = 5x - 10<br> Can you solve for x
tensa zangetsu [6.8K]

Answer:

x = \frac{1}{5}y + 2     or       x = \frac{y+10}{5}     (Not sure which one is preferred in your case)

Step-by-step explanation:

<u>Key skills needed: Evaluating expressions</u>

1) We are given: y = 5x-10

2) To solve for the x variable, we want to leave the term with "x" by itself.

This means we add 10 to both sides

--> y + 10 = 5x (Since -10 and +10 cancel out to make 0 or nothing)

3) Then we divide by 5 on both sides to get "x" completely by itself.

-----> \frac{y+10}{5} = x

4) You can keep it as is so --> x = \frac{y + 10}{5}

or you can divide "y" by 5 and "10" by 5 and get --> x = \frac{1}{5} y + 2

(I am not sure which form is preferred one is preferred as the teacher matters)

<em>Hope you understood and have a nice day!!</em>

6 0
3 years ago
Read 2 more answers
Determine the area of the figure. Use 3.14 for r. Round to the nearest
andrew-mc [135]
So, I need more details, is 3.14 the radius or is 100 the radius. Or is it the diameter???
6 0
2 years ago
13.) Write a Paragraph proof ( Thanks!!)
viva [34]

Step-by-step explanation:

Use triangle congruency:

BC=EC, AC=DC - Given

m∠DCE = m∠ACB because they are vertical angles

Therefore ΔABC ≅ ΔDEC because of Side-Angle-Side congruency

AB=DE because corresponding parts of congruent triangles are also congruent (CPCTC)

8 0
3 years ago
Find the nTH term of this sequence: 15, 12, 9, 6
shtirl [24]

Answer:

-3n + 18

Step-by-step explanation:

an = dn + (a - d)

The difference is -3.

The first term is 15.

an = -3n + (15- (-3))

an = -3n + 15 + 3

an = -3n + 18

4 0
3 years ago
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Which of the following is a rational number?<br> 8<br> 15<br> 44<br> 45<br> π
sveta [45]

All of them are, except ' π ' (pi) ... which gives you an idea of why
that one is usually written as a symbol and not as digits.

Here's a useful factoid regarding the other numbers on the list:
-- <em>ANY</em> number that you can write down on paper, <u>completely</u>,
using digits, is a rational number.


4 0
3 years ago
Read 2 more answers
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