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3 years ago

What is the surface area of the triangular prism?

Mathematics

1 answer:

Inessa [10]3 years ago

3 0

Answer: A. 370 cm2

Step by Step explanation:

10x15=150 The big rectangle

15x6=90x2=180 The small rectangles

20x2=40 the triangles

Add all up 150+180+40=370

Hope this helped

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AveGali [126]

Answer:

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Step-by-step explanation:

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2 years ago

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Find the value of x in the Diagram Below.

zhannawk [14.2K]

Answer: x = 12

Step-By-Step: 180 - 100 = 80

Step-By-Step: 80 - 12 = 68

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3 years ago

Martha estimated the quotient of -71.81 and -8.02 using

steposvetlana [31]

Option 2

Martha estimated the quotient. Martha error was she should have rounded -8.02 to -8.

SOLUTION:

Given that, Martha estimated the quotient of -71.81 and -8.02 using rounding to the nearest whole number.

And she committed an mistake. We have to find the error made by Martha while calculating quotient.

She treated -71.81 to be 72 and -8.02 to be 9. As both the number are negative there will be no problem when we get quotient.

When treated as above she got quotient as 8.

But in general, the quotient is not 8.

If we see options, we derive an conclusion.

Option (1)

she should have rounded 71.81 to 70, no this is not correct as 72 is nearest whole number.

Option (2)

she should have rounded 8.02 to 8, yes this is correct conclusion.

Option (3)

she should have divided 8 by 72, no this is not correct, we should divided 72 by 8.

Option (4)

she didn’t make an error, this is wrong as in 2nd option we caught an error.

Hence, second option is correct.

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3 years ago

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Kamal spent 40% of his income. He

Arte-miy333 [17]

Answer:

(c) Rs. 1500

Step-by-step explanation:

Percentages

It's given Kamal spent 40% of his income. With the remaining 60%, he deposited Rs. 400 in a bank and still has Rs. 500 left.

This means Rs. 400 + Rs. 500= Rs. 900 is 60% if his income.

The 100% of his income is calculated as a percent proportion:

If 60% is Rs. 900, then 100% is:

$\displaystyle \frac{900}{60}*100=1500$

Thus, Kamal's income is Rs. 1500. Correct choice: (c) Rs. 1500

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2 years ago

11 = 7 – 5x Please help!

Bad White [126]

Answer:

the answer is x=-4/5

Step-by-step explanation:

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3 years ago

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