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Reptile [31]
3 years ago
12

Let f(x) = 3x2 - 6x + 2. Find f(-2)

Mathematics
2 answers:
leva [86]3 years ago
5 0

f(x) = 3x² - 6x + 2

f(- 2) = 3·(-2)² - 6·(-2) + 2

= 3·4 + 12 + 2

= 12 + 12 + 2

= 26

Neporo4naja [7]3 years ago
3 0

Answer:

just put

x =  - 2

f( x) = 3 {x}^{2}  - 6x + 2

f( - 2) = 3 {( - 2)}^{2}  - 6( - 2) + 2

f( - 2) = 3 \times 4 + 6 \times 2 + 2 =12+12+2 \\ f(-2)= 26

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A zip line runs from the top of a platform on the edge of a pond to the ground across the pond. A camp counselor places a mirror
tigry1 [53]

Answer:

150 ft

Step-by-step explanation:

The diagram shown gives us a picture of two similar right triangle.

The height of the man is similar to the height of the platform.

To find the height of the platform, multiply the height of the man by the scale factor.

Scale factor = the ratio of any corresponding sides of two similar triangles.

Scale factor = 100 ft ÷ 4 ft = 25

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Therefore, height of platform = 6 ft × 25 = 150 ft

3 0
2 years ago
Pls help will give brainliest!!
klio [65]

25 × 4 = 100 - the number of all candies

2/5 of 100 is

\dfrac{2}{5}\cdot100=\dfrac{200}{5}=40

The third model is shaded to show the total number of caramel candies in 4 bags.

6 0
3 years ago
The coordinates of point D are (7, 4) and the coordinates of point E are (1, −3) . What is the slope of the line that is perpend
Katarina [22]
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If M1 and M2 are slopes of two perpendicular lines at a point then
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3 years ago
Note: We can only use the expanded power rule when there isn't any addition or subtraction. In the example below you need to mul
Simora [160]
21 hope this helps and your welcome
4 0
3 years ago
Find three solutions of the equation y = 7x – 5.
soldi70 [24.7K]
 y=7x-5 This is the same as saying y-7x = -5 Well easy. You just make up numbers that make this work. Let x be 1 y-7=-5 y=-5+7 y=2 So one ordered pair is (1,2) Let x=2 y-14=-5 y=9 So another ordered pair is (2,9) Let x=3 y-21=-5 y=-5+21 y=16 So another ordered pair is (3,16) 
hope it helps
5 0
2 years ago
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