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Mathematics

2 answers:

Shkiper50 [21]3 years ago

8 0

Plug 4 in for x in the equation x^2 + 5x

4^2 + 5(4)

16 + 20

f(4) = 36

Dmitry [639]3 years ago

6 0

Answer:

https://www.bbc.co.uk/bitesize/guides/z9387p3/revision/3 will help you on your other graph questions or for revision.

Step-by-step explanation:

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Please find for y thank you

Vlad1618 [11]

Since the triangles are congruent your equation would be 2y+8=19

Solve for y

y=5.5

4 0

3 years ago

Simplify this equation, 12x+7x+8y+12^2+y+12=

soldi70 [24.7K]

12x+7x+8y+12^2+y+12=19x+9y+24^2

5 0

3 years ago

Read 2 more answers

Please Help me. Also if you could show your work thatd be great.

Over [174]

Answer:

3) $all \: real \: numbers$ , $( - \infty , \infty )$ , or $- \infty \leqslant x \leqslant \infty$ (same thing)

4) $- \infty < y < 0$ or $( - \infty ,0)$ (same thing)

5) $-2$ or $(0, -2)$ (same thing)

Step-by-step explanation:

3) Domain represents the amount of $x$ -values in a function. The image shows that the function's arrows point in both directions (right and left), infinitely, so the domain would be $all \: real \: numbers$ , $( - \infty , \infty )$ , or $- \infty \leqslant x \leqslant \infty$ (same thing).

4) Range represents the amount of $y$ -values in a function. The function goes downward forever ( $- \infty < y$ ) by the indication of an arrow and halts just under the y-axis ( $y < 0$ ). After combining these two inequalities, you see that the range is $- \infty < y < 0$ or $( - \infty ,0)$ (same thing).