3 years ago

2) pplllllss hellppp

Mathematics

1 answer:

Dovator [93]3 years ago

6 0

Answer:

A. -1 and 1/3

Step-by-step explanation:

The number -1 and 1/3 is directly to the right of -1 and 2/3 because there is a -1/3 difference between them

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Multiply 1240 by 1.15 to get 1426 students enrolled this year.

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How many triangles can be constructed with side lengths of 7.2 cm, 6.9 cm, and 12.8 cm?

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Answer:

One triangle

Step-by-step explanation:

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Find the area of the rectangle.<br> 36<br> kilometers<br> (x-3) kilometers

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36x - 108 kilometers²

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3 years ago

Calculate the resistance of a 270-cm length of copper wire with a 0.030-cm2 cross-sectional area. ( = 1.8 · 10-6 ohm-cm) R = ___

devlian [24]

Answer:

Given:-

The length of copper wire (L) = 270 cm

Area of cross-sectional (A) = 0.030 $cm^2$

and specific resistance (ρ) = $1.8 \times 10^{-6}$ ohm-cm.

Use the formula R=(Specific resistance*L)/A, to calculate the Resistance(R)

then, $R=\frac{1.8 \times 10^{-6} \times 270}{0.030}$ ohm

Simplify:

R = 0.0162 ohm = $1.62\times 10^{-2}$ ohm

Therefore, the resistance of copper wire is, $1.62\times 10^{-2}$ Ω

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