Please help me with these two questions I hate math

Mathematics

1 answer:

Aleksandr [31]3 years ago

6 0

Answer:

18. b

19. b

Step-by-step explanation:

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What are the zeros of f(x)=x^2-10+25

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What should be the paper weight

nata0808 [166]

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Step-by-step explanation:

$\rho=\dfrac{m}{V} \\\\V_{\text{pyramid}}= A_{\text{base}}\cdot h \cdot \dfrac{1}{3} \\\\1.6=\dfrac{400}{V} \\\\V=120 \cdot h \cdot \dfrac{1}{3} \\\\1.6=\dfrac{400}{40h} \\\\1.6=\dfrac{10}{h} \\\\1.6h=10 \\\\h=\dfrac{10}{1.6}=6.25\text{ cm}$

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(-12)^9 negative or positive

g100num [7]

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Hope you learned something :)

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3 years ago

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alekssr [168]

Answer:

+-1/4

Step-by-step explanation:

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