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3 years ago

Quadratic Equations: Write x^2 - 3x + 2 = 0 in standard form and determine a, b, and c

Mathematics

2 answers:

Anna35 [415]3 years ago

7 0

The answers your looking for are: A.1 B.3 C.2 and x=2,1 hope this helped have a nice day :)

anyanavicka [17]3 years ago

5 0

A=1
b=-3
c=2
x=2,1

Hope this helped :-)

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3x + (-9x) + 12 + 8

ohaa [14]

(3x−9x)+(12+8)
Answer

−6x+20

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3 years ago

Read 2 more answers

The measure of the second angle is 15 degrees more than the measure of the first angle the measure of the third angle is 45 degr

Dominik [7]

Answer:

The measures of the three interior angles of the triangle are {40,55,85}.

Step-by-step explanation:

Let a = the measure of the first angle of the triangle.

Let b = the measure of the second angle of the triangle.

Let c = the measure of the third angle of the triangle.

The problem statement tells us that

(1) a = a

(2) b = a + 15 and

(3) c = a + 45

Now we (should) know that the sum of the three angles of a triangle is 180 degrees. Then we get

(4) a + b + c = 180 or by substitution we get

(5) a + (a + 15) + (a + 45) = 180 or

(6) a + a + 15 + a + 45 = 180 or

(7) 3*a + 60 = 180 or

(8) 3*a = 180 - 60 or

(9) 3*a = 120

Now divide both sides of (9) by 3 to get

(10) 3*a/3 = 120/3 or

(11) a = 40

Using (2) and (3) we get

(12) b = 40 + 15 or

(13) b = 55 and

(14) c = 40 + 45 or

(15) c = 55

Always check the answer. Use (4)

Is (40 + 55 + 85 = 180)?

Is (95 + 85 = 180)?

Is (180 = 180)? Yes

6 0

3 years ago

Please Help I Will Give Brainliest!!!!

ollegr [7]

Question 1: To find volume the formula is Length× Width × height
So it would be 2 1/2× 6 × 3 1/2= 5 1/2
So the volume is 5 1/2

Question 2: You have to multiply 6 × 4 = 24

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4 years ago

An airplane is preparing to land at an airport. It is 41,300 feet above the ground and is descending at the rate of 3,100 feet p

MissTica

9514 1404 393

Answer:

after 7 minutes
19,600 feet

Step-by-step explanation:

Here's the "pencil and paper" solution:

The two altitude equations are ...

y = 41300 -3100x
y = 2800x

They can be solved by setting the expressions for y equal to each other.

2800x = 41300 -3100x

5900x = 41300

x = 41300/5900 = 7

y = 2800·7 = 19600

The planes will both be at 19,600 feet after 7 minutes.

_____

Attached are solutions from a graphing calculator, and from a calculator app that is able to solve systems of equations.

I find the graphing calculator the easiest to use. I can enter equations using a keyboard, and the solution is displayed in a form that can be copied and pasted.

The calculator app on my phone requires equation entry using a small on-screen keyboard, with multiple key hits required to access some functions. (y is obtained by hitting the x key twice, for example.)

The "pencil and paper" solution is not so difficult, but requires a certain amount of writing (or good short-term memory). The solutions for x and y require separate calculations, whereas the other methods give both x and y at the same time.

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4 years ago

Next 2 numbers after 0.006, 0.06, 0.6, 6

rosijanka [135]

16 and 26 is your answer

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3 years ago