<img src="https://tex.z-dn.net/?f=%283%5Csqrt%7B6%7D%29%283%5Csqrt%7B10%7D" id="TexFormula1" title="(3\sqrt{6})(3\sqrt{10}" alt=

MakcuM [25]

3 years ago

"(3\sqrt{6})(3\sqrt{10}" align="absmiddle" class="latex-formula">

Mathematics

1 answer:

mote1985 [20]3 years ago

6 0

18sqrt(15)

This has to be at least 20 characters long so yeaaaa

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If f(x) = -5x, then f(-3)= If g(x) = 2x - 1, then g(4)=

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F(x) = -5x
f(-3) = -5(-3)
f(-3) = 15

---

g(x) = 2x - 1
g(4) = 2(4) - 1
g(4) = 8 - 1
g(4) = 7

Answers:
f(-3) = 15
g(4) = 7

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Need some help with this question in the image Cheers

iren [92.7K]

Step-by-step explanation:

a) 24.7×52.3=1291.81

On rounding off to 3 significant digits we get

1290

$\sqrt{ {42}^{2} - {28}^{2} }$

$\sqrt{1764 -784 } = \sqrt{980}$

=31.304951

On rounding off to 5 significant figures we get

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$\sqrt[3]{78} = 4.27265$

On rounding off to 2 significant figures we get

=4.3

Hence required answers

a)1290

b)31.305

c)4.3

I hope it helped you

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2 years ago