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sladkih [1.3K]
3 years ago
5

Write a quadratic equation in STANDARD FORM given the roots: 1, 1/2

Mathematics
1 answer:
Zigmanuir [339]3 years ago
5 0

Answer:

f(x) = 2x^2 - 3x + 1

Step-by-step explanation:

The root 1 is associated with the factor (x - 1).

The root 1/2 is associated with the factor (x - 1/2), which in turn is equivalent to (2x -1)

The quadratic in question is f(x) = (x - 1)(2x - 1).  To write this in standard form, perform the indicated multiplication:

f(x) = 2x^2 - 2x - x + 1, or f(x) = 2x^2 - 3x + 1

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Plz help me <br> I really appreciate it
Serga [27]

Answer:

a = 45°

Step-by-step explanation:

In triangle PSR

PS = RS (Given)

angle SPR = angle SRP (isosceles triangle property)

Let angles SPR and SRP be x

Therefore, 90° + x + x = 180° (angle property)

=> 90° + 2x = 180°

=> 2x = 180° - 90° = 90°

=> 2x = 90°

=> x = 90° ÷ 2 = 45°

=> x = 45°

Hope it helps:)

3 0
2 years ago
Antony buys one pound of oranges for $12 and sells it for $14. How can he write the profit in his account book?
WITCHER [35]
Two dollars gain, or $2, because he lost 12, and got 14, and -12+14=positive 2

7 0
4 years ago
Read 2 more answers
HURRY ASAP IM ABT TO TURN THIS IN
Lina20 [59]
The answer would be -1
4 0
3 years ago
Read 2 more answers
Graph the image of the given triangle, reflected across the y-axis. Select the Polygon tool. Then, click the points of the trian
yawa3891 [41]

1) We are given a hexagon there.

Sum of all angles of a hexagon is 720.

Therefore, sum of all angles inside pentagon =720.

We can step an equation as

x+100+102+108+121 = 720.

Adding 100+102+108+121, we get 431.

Therefore,

x+431 = 720.

Subtracting 431 from both sides, we get

x+431-431 = 720-431

x=289.

Therefore, measure of unknown angle x= 289 degrees.


2) Coordinates of the vertices of the given triangle

(-2,-9)

(7,-4)

(9,-7).

We need to graph the reflected triangle across the y-axis.

For reflected triangle across the y-axis we can apply rule

(x,y) --> (-x,y)

By applying above rule, we get the coordinates of reflected triangle as

(-2,-9)  --> (2,-9)

(7,-4)   --> (-7,-4)

(9,-7)   --> (-9,-7).

Now, we can plot those coordinates on the graph and join the coordinates to form a triangle.

4 0
4 years ago
Read 2 more answers
What is 99+100 divided by 54
vazorg [7]
\frac{99 + 100}{54}

Simplify.

\frac{199}{54}

Turn this into a mixed fraction.

Think : How many times does 54 go into 199??

Well, it goes into 199 3 times! :)

So, do 54 × 3, then subtract that number from 199.

54 × 3 = 162

199 - 162 = 37

So, our remainder is 37.

Our whole number is 3, because that's many times it went into 199.

And our denominator (bottom number) is 54, as it always has been.

So, \frac{99 + 100}{54}  = 3  \frac{37}{54}

~Hope I helped!~
6 0
3 years ago
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