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
rosijanka [135]
3 years ago
13

Please help ?!!! Solve the three equations in the table using any method of your choice. List the method you used.

Mathematics
2 answers:
Sav [38]3 years ago
4 0

Please Refer to the screenshot. Hope this helps!

KatRina [158]3 years ago
3 0

Step-by-step explanation:

x =  \frac{ - b \frac{ + }{ - }  \sqrt{ {b}^{2} - 4ac } }{2a}

The quadratic formula is honestly the most straightforward way of solving here.

Your other options are completing the square (which is the same thing as the quadratic formula but it's good to know that method if you have to take Integral Calculus at some point) or maybe factoring by grouping if it's appropriate. But the quadratic formula will work for you in all three equations:

1) a=1, b=0, c=8

This reduces pretty quickly into x=8i,-8i due to the negative under the radical. (Actually we didn't even really need the formula here.)

2) a=-9, b=4, c=-10

This reduces into x=(-4+i√(344))/-18, (-4-i√(344))/-18 and doesn't go any further because 344 isn't a perfect square.

3) a=1, b=8, c=17

This reduces to x=(-4+i), (-4-i)

So those are the answers for each.

You might be interested in
When an organism is changed or altered from its parent or original form.
Umnica [9.8K]

Answer:

c. Mutation

Step-by-step explanation:

should be right I hope lol. good luck :)

4 0
2 years ago
Read 2 more answers
In London today, four times the high temperature was more than twice the high temperature plus
4vir4ik [10]

Answer:

Let's define the high temperature as T.

We know that:

"four times T, was more than 2*T plus 66°C"

(i assume that the temperature is in °C)

We can write this inequality as:

4*T > 2*T + 66°C

Now we just need to solve this for T.

subtracting 2*T in both sides, we get:

4*T - 2*T > 2*T + 66°C - 2*T

2*T > 66°C

Now we can divide both sides by 2:

2*T/2 > 66°C/2

T > 33°C

So T was larger than 33°C

Notice that T = 33°C is not a solution of the inequality, then we should use the symbol ( for the set notation.

Then the range of possible temperatures is:

(33°C, ...)

Where we do not have an upper limit, so we could write this as:

(33°C, ∞°C)

(ignoring the fact that ∞°C is something impossible because it means infinite energy, but for the given problem it works)

4 0
2 years ago
What is the estimate of 119÷23.3
Crank
Your answer would be 5.10... Hope this helps :)
6 0
2 years ago
It's says use compatible numbers to complete the project.then estimate the sum 428+286
OLga [1]

Answer:

Estimate: 700 Answer: 712

4 0
3 years ago
I need help quickkk!?
a_sh-v [17]

Answer:

i believe the answers

Step-by-step explanation:

are

right

in

front

of

your

face

3 0
2 years ago
Other questions:
  • To which subsets of real numbers does the number -22 belong? Choose all that apply.
    14·1 answer
  • How many solutions does the system have? y=3x+3 y=-2x+3
    11·2 answers
  • Marcus baked a loaf of banana bread for a party. He cut the loaf into equal size pieces.how can you find the number of pieces in
    5·1 answer
  • The original price of a mountain bike was reduced by $125. If p = the mountain bike's original price in dollars, which algebraic
    15·2 answers
  • A 1 inch thick stack of printer paper is found to contain 175 sheets to the nearest thousandth of an inch how thick is each shee
    5·1 answer
  • Which vertex will result in the minimum value of the function T = x - 2y?
    6·1 answer
  • Use a table of trigonometric values to find the angle θ in the right triangle in the following problem. Round to the nearest deg
    14·1 answer
  • 9.6 + 12 3/4 + 7 3/20 +5.5 + 14.5 =
    8·2 answers
  • A certain population has been shown to have a 2% annual growth rate. The
    13·1 answer
  • 12 is what percent of 24? What percent of 35 is 7? What percent of 90 is 9? 20 out of 60 is what percent?​
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!