2 years ago

What is the value of x? Round to the nearest tenth Need help fast!!

1 answer:

3 0

The answer is actually 7.0 because the lengths of the triangle are both going to be 5 and the hypotenuse is then 5 square root of 2 which is 7.07 so if you round it’s 7.0

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Evaluate 3x² - 4xy + 2y² - 1 for x = - 3 and y = 5

zhannawk [14.2K]

Answer:

$3x^{2} - 4xy + 2y { }^{2} - 1 \\ 3 \times ( - 3) { }^{2} - 4 \times ( - 3) \times 5 + 2 \times 5 {}^{2} - 1 \\ (3 \times 9) - ( - 60) + 50 - 1 \\ 27 + 60 + 50 - 1 \\ 165$

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9 months ago

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Find the numerical value of the log expression. \log a=7\hspace{15px} \log b=10\hspace{15px} \log c=3 loga=7logb=10logc=3 \log \

bija089 [108]

Answer:

Step-by-step explanation:

$\log a=7\hspace{15px} \log b=10\hspace{15px} \log c=3\\\\ \log \dfrac{a^8c^2}{b^3}=8\log{a}+2\log{c}-3\log{b}=(8)(7)+(2)(3)-(3)(10)\\\\=56+6-30=\boxed{32}$

The applicable rules of logarithms are ...

log(ab/c) = log(a) +log(b) -log(c)

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2 years ago

A car dealer earns $100 a week plus 5.5% on all sales. If he sold $57,000 in cars this week, how much did he earn?

Nana76 [90]

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3235

Step-by-step explanation:

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2 years ago

On the board, your teacher shows an example of finding the range.

Paladinen [302]

Answer:

I think answer is B or C or D

Step-by-step explanation:

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2 years ago

Estimated product of 2 1/2 x 2 1/3

tatyana61 [14]

The answer is 35/6. Hope you get it!

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