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Elza [17]
3 years ago
8

QUICK HELP MATH ASSESSMENT!!!

Mathematics
1 answer:
3241004551 [841]3 years ago
4 0

Answer:

4x^{2} - 16x - 16

Step-by-step explanation:

f(x) = ax^{2} + bx + c

f(x) = 4(x - 2)^{2}

(x - 2) (x - 2)

x^{2} - 2x - 2x - 4

x^{2} - 4x - 4

f(x) = 4(x^{2} - 4x - 4)

4x^{2} - 16x - 16

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quester [9]

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3 0
3 years ago
A rectangular field will be fenced on all four sides. There will also be a line of fence across the field, parallel to the short
Dimas [21]

Answer:

150m by 300 m

Step-by-step explanation:

150×300=45000

all sides add up to 900m

150+150+300+300

3 0
4 years ago
What is the value of d?<br><br><br>Round your answer to the nearest tenth.
Sergeeva-Olga [200]

Answer:

11.9 mm

Step-by-step explanation:

We can find d by applying the cosine rules.

d²  = 21² + 27² - 2(21)(27) cos (25)

d²  = 441 + 729 - 1027.75

d²  = 142.25

d = √142.25

d = 11.9 mm (nearest tenth)

5 0
3 years ago
What is the range of the following relation?
Anna [14]

Answer:

[0,-infinity[

Step-by-step explanation:

you look on the starting point and the ending point of the y-axis (♾ is always opened [ )

7 0
3 years ago
Read 2 more answers
Please answer asap this person made a mistake what is the error and correct solution to this problem
stiv31 [10]

Answer:

6

Step-by-step explanation:

Hello, please consider the following.

(4+x)^2=4^2+2\cdot 4\cdot x+x^2=16+\boxed{8}x+x^2\\\\\text{ ... and not ...}\\\\16+\boxed{4}x+x^2

So the correct equation becomes.

x^2+64=16+8x+x^2\\\\8x=64-16=48\\\\\text{ we divide by 8 both sides of the equation.}\\\\x=\dfrac{45}{8}=6

Hope this helps.

Do not hesitate if you need further explanation.

Thank you

6 0
3 years ago
Read 2 more answers
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