3 years ago

Use the quadratic formula to solve the equation X^2+9X+20=0

Mathematics

2 answers:

lions [1.4K]3 years ago

6 0

Answer:

x=-4

x=-5

Step-by-step explanation:

Stells [14]3 years ago

3 0

Answer:

-4 or -5

Step-by-step explanation:

Well, you have to first understand variables a, b, and c. A in this equation is 1, b is 9, and c is 20. Then you plug those into -b ± sqrt (b^2-4ac)/2a and find that the discriminant, or what is under the square root, is one. Your two roots will be -4 and -5.

You might be interested in

Simplify number 17 please

Brrunno [24]

64x^15y^3/4096x^3y^12

4 0

4 years ago

Read 2 more answers

Can someone help me with this ASAP I am so close to the end of this assignment!!!

Sveta_85 [38]

Answer:

Step-by-step explanation:

$\sqrt{(-5 - (-1))^{2} + (7 - 2)^{2} } = \sqrt{41}$

8 0

3 years ago

Read 2 more answers

Given line BD is congruent to BC, find the measure of angle B

Degger [83]

If BD is congruent to BC, that means that the sides are equal, so their angles are too.
6x-9 = 3x+24
3x = 33
x = 33/3
x = 11
Angle BCD:
6×11-9 = 66-9 =57°
Angle BDC:
3×11+24 = 33+24 = 57°
Angle B:
x = 180° - 2×57°
x = 66°

5 0

3 years ago

Two numbers that differ by 46

Reil [10]

the complete question is

Find two numbers whose difference is 46 and whose product is a minimum

Let

x------->larger number

y-------> smaller number

P-------> product of the two numbers

we know that

$x-y=46\\ y=x-46$ -----> equation 1