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3 years ago

Please help step by step

Mathematics

1 answer:

TEA [102]3 years ago

6 0

Answer:

i have made it in above picture

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it would take him 3.5 minutes

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3 years ago

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Can you explain 3 and 4 and tell met he right answers if I'm wrong?

defon

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Step-by-step explanation:

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Answer for 4x²+12x+5

Marta_Voda [28]

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3 years ago

4 (X+7) = 38<br> WHAT IS X AND EXPLAIN HOW YOU KNOW

xxMikexx [17]

Answer:

X=2.5

Step-by-step explanation:

38÷4 = 9.5

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2 years ago

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Cal is measuring temperature changes in four substances over different time periods as part of a school project. Which data show

djyliett [7]

Answer:

C) The third table. K= 5

$C)\frac{10}{2}=\frac{15}{3}=\frac{25}{5}=\frac{40}{8}=k= 5$

Step-by-step explanation:

1) Below there are the missing data:

A proportional relationship through a constant k. It is obtained when we divide:

$k=\frac{y}{x}$

2)In this case, when we divide the temperature (T) by the time (h).

$k=\frac{T}{h}$

3)So, examining the table below we are searching for a ratio k common to all measures (temperatures over hour).

$A) \frac{12}{3}\neq\frac{25}{5}\neq\frac{36}{6}\neq\frac{81}{9}\\B) \frac{22.5}{3}\neq\frac{30}{4}\neq\frac{52.5}{7}\neq\frac{67.5}{8}\\C)\frac{10}{2}=\frac{15}{3}=\frac{25}{5}=\frac{40}{8}=k= 5\\D)\frac{8.5}{2}\neq\frac{22.5}{5}\neq\frac{28.5}{7}\neq\frac{36}{8}$

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3 years ago