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Allisa [31]
2 years ago
10

Can someone help me with this? thank you!

Mathematics
2 answers:
hammer [34]2 years ago
3 0

Answer:

<u>240cm³</u>

Step-by-step explanation:

To find our answer we will <u>multiply</u> the <em>volume, width, and height</em>.

4 · 20 · 3 = 240.  Therefore, <u>240cm³ is our answer.</u>  

<em>Have a good day!</em>

disa [49]2 years ago
3 0

\qquad\qquad\huge\underline{{\sf Answer}}

Let's calculate its volume ~

Volume of a rectangular prism is :

\qquad \sf  \dashrightarrow \:v = l \cdot w\cdot h

\qquad \sf  \dashrightarrow \:v = 20 \cdot 4\cdot 3

\qquad \sf  \dashrightarrow \:v = 240 \:  \: cm {}^{3}

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Simplify 5y^2 + 5y + 5y + 5x^2.
Ierofanga [76]

Answer:

5y^2 + 10y + 5x^2

Step-by-step explanation:

there's only two like terms that can be combined.

4 0
3 years ago
How to make 9 2/5 into a improper fraction and plz show your work because my brain is not that smart
aliina [53]

Answer:

47/5

Step-by-step explanation:

First step: multiply the denominator (bottom of the fraction) of the fraction by the whole number.

5*9 = 45

Second Step: add the numerator

45 + 2 = 47

Third step: Put the result over the denominator.

47/5

5 0
2 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


8 0
3 years ago
6) What is the mean (average) of this set of data: 3 4 6 7 10 15 19 21
Natali5045456 [20]

Answer:

10.62

Step-by-step explanation:

Mean can be described as the average of a sum of numbers, it can be calculated by sum ing all the numbers together and then diving by the total

The mean of the set of numbers shown in the question above can be calculated as follows

3+4+6+7+10+15+19+21/8

= 85/8

= 10.62

Hence the mean is 10.62

6 0
3 years ago
The area of 14 cm wide rectangle is 252 CM what is the length​
Olin [163]

Answer: 21cm

Step-by-step explanation:

To find the area of a rectangle you just multiply the length by the width. In this case we have 12(width) x ?(length) = 252. To solve we would just divide the area by the known measurement to find the missing one, so 252/12 =21cm

5 0
2 years ago
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