2 years ago

Hey plese helppppp . Question: Evaluate: b²- 4ac. if a=5, b=-2,c=-3

Mathematics

2 answers:

sergey [27]2 years ago

4 0

Answer:

Step-by-step explanation:

b²- 4ac

Let a=5, b=-2,c=-3

(-2)^2 - 4(5) (-3)

4 +60

Aliun [14]2 years ago

3 0

Answer:

Step-by-step explanation:

(-2)^2 - 4(5)(-3)

4 - - 60

You might be interested in

A parabola can be drawn given a focus of (6,0) and a directrix of y = -6. Write the

VLD [36.1K]

Answer:

Equation of the parabola: $12y+36=(x-6)^2$ or $y=\frac{x^2}{12} -x$

Vertex form: $y=\frac{1}{12} (x-6)^2-3$

Intercept form: $y=\frac{x}{12} (x-12)$

Step-by-step explanation: hope this helps please give brainlieat!

7 0

3 years ago

Read 2 more answers

I need help please .

levacccp [35]

Answer:

Step-by-step explanation:

You know that anything to the zeroeth power is 1, so the equation is now

-7 * 1, or -7.

7 0

3 years ago

Density of a 8200 gram brick that is 4 inches x 4 inches x 4 inches?

Tanzania [10]

Density = mass / volume
Density = 8,200 grams / (4*4*4)
Density = 8,200 grams / 64 cubic inches
Density = 128.125 grams / cubic inch

3 0

3 years ago

Suppose a triangle has two sides of length 32 and 35, and that the angle

pantera1 [17]

Answer:

The third side is around 58.043

Step-by-step explanation:

Use the law of cosines: $c^2=a^2+b^2-2abcos(C)$

Plug in the two sides we know (into a and b) and the angle we know (into angle C).

Thus:

$c^2=32^2+35^2-2(32)(35)cos(120)$

Use a calculator:

$c^2=3369\\$

$c=58.043087...$

(Note: Make sure you're in Degrees mode.)

3 0

3 years ago

At the zoo on monday, 65 percent of the people in attendance were children. if 520 children were in attendance, how many people

inna [77]

Children = .65 * people
people = 520 / .65
800 people were in attendance

7 0

3 years ago

Read 2 more answers

Hey plese helppppp . Question: Evaluate: b²- 4ac. if a=5, b=-2,c=-3 ​

Hey plese helppppp . Question: Evaluate: b²- 4ac. if a=5, b=-2,c=-3