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Whitepunk [10]
3 years ago
5

7. If a = 3 and b = -1, find the value of 2a - 2b.

Mathematics
1 answer:
Ber [7]3 years ago
5 0

Answer:

hola bolilla cómo andas e bueno ay te gachas

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d

Step-by-step explanation:

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12 rounded to the nearest tenth in between 167
Alex777 [14]

No, 12 rounded to the nearest tenth is 12.0


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Let a triangle have sides of 137 in, 127 in,
Margarita [4]

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I think first add the side 137+ 127 +118=382 / 382cm

8 0
2 years ago
Answer questions a) and b)
Mariulka [41]

Answer:

x\hookrightarrow -1\hookrightarrow 0\hookrightarrow 1\hookrightarrow 2\hookrightarrow 3\hookrightarrow 4\hookrightarrow 5

y\hookrightarrow 5\hookrightarrow 0\hookrightarrow -3\hookrightarrow -4\hookrightarrow -3\hookrightarrow 0\hookrightarrow 5

The curve (B) matches the graph of y=x²-4x.

----------\\Hope \ it\;helps

4 0
3 years ago
Question Help The mean finish time for a yearly amateur auto race was 185.64 minutes with a standard deviation of 0.314 minute.
Inga [223]

Answer:

Sam has the more convincing victory with a greater Zscore value

Step-by-step explanation:

Given that :

Year 1:

Mean finish time (m) = 185.64

Standard deviation (s) = 0.314

Sam's time (x1) = 185.29

Year 2:

Mean finish time (m) = 110.3

Standard deviation (s) = 0.129

Rita's time (x1) = 110.02

Zscore = (x - mean) / standard deviation

Sam's Zscore :

(185.29 - 185.64) / 0.314

= - 0.35 / 0.314

= −1.114649

= - 1.115

Rita's Zscore :

(110.02 - 110.3) / 0.129

= - 0.28 / 0.129

= −2.170542

= - 2.171

Sam has the more convincing victory with a greater Zscore value

5 0
2 years ago
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