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amid [387]
4 years ago
13

Explain how to add 678 + 303 using mental math

Mathematics
1 answer:
zloy xaker [14]4 years ago
4 0

Answer:

You add it in your mind.

Step-by-step explanation:


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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


8 0
3 years ago
I need help? Does anyone know how to do this?! Will receive 40 POINTS!
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I am not for sure that what im about to type is the right answer but if im not wrong the amswer is 1over4
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4 years ago
Last week, 3/4 of the students in Mr. Zanker's class went on a field trip. 5/8 of the
sleet_krkn [62]

The average fraction of students in the two classes who went on the field trip is 11/16

<h3>What is the average fraction of students in the two classes who went on the field trip?</h3>

The given parameters are:

Class 1 = 3/4

Class 2 = 5/8

The average is calculated as

Average = 1/2 * (Class 1 + Class 2)

So, we have

Average = 1/2 * (3/4 + 5/8)

Evaluate

Average = 11/16

Hence, the average fraction of students in the two classes who went on the field trip is 11/16

Read more about average at:

brainly.com/question/20118982

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7 0
2 years ago
you want to buy a bouquet of yellow roses and baby's breath for $16.the baby's breath costs $3.50 per bunch,and the roses cost $
mafiozo [28]
<span>You want to buy a bouquet of yellow roses and baby's breath for $16.the baby's breath costs $3.50 per bunch,and the roses cost $2.50 each.you want one bunch of baby's breath and some roses for your bouquet.how many roses can you buy?</span>
8 0
4 years ago
The area of a square garage is 155 square feet. Will it fit a car that measures 13 feet long. explain?
Aliun [14]

Step-by-step explanation:

let breath be b

area = length × breath

155 = 13 × b

b= 155/13

b= 11.92

4 0
3 years ago
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