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Tasya [4]
3 years ago
11

If f(x)= x^2-2x+3, find the value of f (-2) and f(3)

Mathematics
1 answer:
AlexFokin [52]3 years ago
4 0

Step-by-step explanation:

<em>Given </em>

<em>f(</em><em>x</em><em>)</em><em> </em><em>=</em><em> </em><em>x²</em><em> </em><em>-</em><em> </em><em>2x </em><em>+</em><em> </em><em>3</em>

<em>Now</em>

<em>f(</em><em>-</em><em>2</em><em>)</em><em> </em><em>=</em><em> </em><em>(</em><em>-</em><em>2</em><em>)</em><em>²</em><em> </em><em>-</em><em> </em><em>2</em><em> </em><em>*</em><em> </em><em>(</em><em> </em><em>-</em><em>2</em><em> </em><em>)</em><em> </em><em>+</em><em> </em><em>3</em>

<em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em>=</em><em> </em><em>4</em><em> </em><em>+</em><em> </em><em>4</em><em> </em><em>+</em><em> </em><em>3</em>

<em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em>=</em><em> </em><em>1</em><em>1</em>

<em>f(</em><em>3</em><em>)</em><em> </em><em>=</em><em> </em><em>3</em><em>²</em><em> </em><em>-</em><em> </em><em>2</em><em> </em><em>*</em><em> </em><em>3</em><em> </em><em>+</em><em> </em><em>3</em>

<em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em>=</em><em> </em><em>9</em><em> </em><em>-</em><em> </em><em>6</em><em> </em><em>+</em><em> </em><em>3</em>

<em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em>=</em><em> </em><em>1</em><em>2</em><em> </em><em>-</em><em> </em><em>6</em>

<em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em>=</em><em> </em><em>6</em>

<em>Hope </em><em>it </em><em>helps </em><em>:</em><em>)</em>

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3 years ago
In how many map squares did we spot more than 29 plant species
Katena32 [7]

Answer:

10 map squares.

Step-by-step explanation:

We have been given a histogram, which represents the plant species spotted in the animal reserve.

The x-axis represents the number of plant species and y axis represents the number of map squares.

We can see that 0 to 9 species are spotted in 1 map square.

10 to 19 and 20 to 29 plant species are spotted in 2 map squares.

To find the number of map squares that spot more than 29 plant species, we will count number of map squares that spot 30 to 49 plant species as 30 to 49 numbers are more than 29.

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5 0
4 years ago
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Is it possible to draw a triangle with these
trasher [3.6K]

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Yes

Step-by-step explanation:

We have many triangles and we have Isoceles, equilateral and right angled triangle

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6 0
3 years ago
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Find the solution to the inequality<br><br> 23(6x−3)&gt;6?
laiz [17]

Answer:

The answer is x>25/46

Step-by-step explanation:

Distribute 23 through the parentheses

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Move constant to the the right and change the sign. 138x>6+69.

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Divide both sides and you'll will get x>25/46 which is your answer. Let me know if this helps

8 0
3 years ago
<img src="https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B1000%7D%20%2B%20%5Csqrt%5B3%5D%7B0.027%7D%20-%20%5Csqrt%5B3%5D%7B125%7D" id="
e-lub [12.9K]
Step 1: calculate the cube roots, convert the decimal into a fraction, and calculate the cube roots again

10 + 3 square root 27/1000 - 5

Step 2: calculate the cube root

10 + 3/10 -5

Step 3: subtract the #’s

5 + 3/10

Step 4: calculate and you get

53/10


Answer: 53/10

3 0
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