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Leno4ka [110]
3 years ago
13

Evaluate b – 2a – c for a = –3, b = 9, and c = –6.

Mathematics
2 answers:
Zielflug [23.3K]3 years ago
7 0

answer is 21



hgfdvyfbuyvuc6vtfuybg


telo118 [61]3 years ago
3 0
<span>b – 2a – c
= 9 - 2(-3) - (-6)
= 9 + 6 + 6
= 21

answer
21</span>
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Which choices are equivalent to the exponential expression below? Check all that apply. (4/5)^3​
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Answer:

A, C, D

Step-by-step explanation:

Remember: Exponents are simply repeated multiplication.

The exponent determines how many times to multiply the base number by itself.

(\frac{4}{5} )^3=\frac{4}{5} *\frac{4}{5} *\frac{4}{5} =\frac{64}{25}

Option 'A' and 'C' apply.

Option D applies because:

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The projected T. rex is about
dolphi86 [110]

Answer: scale\ factor=230

Step-by-step explanation:

You need to analize all the information given in the exercise.

You know that the actual height of the T-rex on the projector lens is the following:

actual\ height=2\ cm

The height of the projected T-rex is:

projected\ height=4.6\ m

Make the conversion from meters to centimeters:

projected\ heigth=(4.6\ m)(\frac{100\ cm}{1\ m})\\\\projected\ heigth= 460\ cm

Therefore, the scale factor will be:

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3 years ago
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solong [7]

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21.4 mm

Step-by-step explanation:

area ÷ base = height

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21.4 mm

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3 years ago
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