All categories

4 years ago

23 POINTS PLEASE HELP ME !!!!!!

Mathematics

1 answer:

Len [333]4 years ago

8 0

Answer:

x^2 + px + q = 0

x = - p/2 ± √((p/2)^2 - q)

x^2 - 4x + 3 = 0

x = - (-4)/2 ± √(((-4)/2)^2 - 3)

x = 2 ± 1

x1 = 1

x2 = 3

You might be interested in

2. Multiply and simplify: (x - 2)(2x + 3)<br> Answer

inysia [295]

Step-by-step explanation:

(x - 2)(2x + 3)

=2x²+3x-4x-6

=2x²-x-6

8 0

3 years ago

Read 2 more answers

The circumference of a circle exceeds the radius by 74 cm. Find the radius of the circle.

saw5 [17]

Answer:

14 cm.

Step-by-step explanation:

Let the radius of the circle = r cm.

Then circumference of circle = 2 π r.

Since circumference exceeds the radius by 74 cm

Therefore, according to the question,

$\sf \:2 π r = r+ 74$

$\sf \: = > 2 \times \frac{22}{7} \times r = r \: + 74$

$\sf \: = > \frac{44r}{7} -r = 74$

$\sf \: = > \frac{44r - 7r}{7} = 74$

$\sf \: = > \frac{37r}{7} = 74$

$\sf \: = > r = \frac{7 \times 74}{37}$

$\sf \: = > r = 14$

Hence, the radius of the circle is 14 cm.

________________________________

3 0

2 years ago

Read 2 more answers

Please help! posted picture of question

Dvinal [7]

Since the graph of the given functions is a straight line, the graph belongs to a linear function, as all linear functions have their graphs as a straight line. For a non-linear function the graph is not a straight line.

For a relation (non-function), the line passes through same value of x for more than one points.

Hence the correct answer is "Linear Function"

8 0

3 years ago

Given m ||n, find the value of x <br> 167°

frutty [35]

Answer:

Step-by-step explanation:

180-167= 13

× = 13 degrees

7 0

3 years ago

Which expression shows that 11 + 7 = 5 + 13?

Naily [24]

The addition method.

4 0

3 years ago