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4 years ago

( n^2 - 3n ) 4n = ________

Mathematics

1 answer:

vivado [14]4 years ago

6 0

Answer:

4n³ - 12n²

Step-by-step explanation:

Just distribute the 4n inside of the parenthese.

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Help! How many pairs are circled?

juin [17]

Answer:

Step-by-step explanation:

5 0

3 years ago

Wheat contains about 2.5 kcal per gram, and the average U.S. male consumes 2500 kcal per day. How many hectares of wheat are nee

Yuri [45]

First of 30% of 2500kcal is 750kcal
if a male consumes 2.5 kcal then 750kcal / 2.5kcal = 300
but then we would need to know how many wheat are on one hectare of land.

3 0

4 years ago

Read 2 more answers

Brad the pair of fractions as a pair of fractions with a common denominator 3/10 and 1/2

LuckyWell [14K]

Answer:

2/10 and 3/10

Step-by-step explanation:

Hello!

The best way of finding common denominators is using their factors!

(of denominators)

10 : 1, 2, 5, 10

2 : 1, 2

We also can see that 10 is divisible by 2.

For that reason, 1/2 is equivalent to 2 * 10 ÷ 2.

That's 10.

So 5/10 and 3/10 have a common denominator 10.

Hope this helps!

4 0

3 years ago

Problem1 a right square frustum is formed by cutting a right square pyramid with a plane parallel to its base. Suppose the origi

timama [110]

Answer:

Volume of the frustum is 76 unit³

Step-by-step explanation:

From the figure attached we have to calculate the volume of the frustum formed by cutting off a square pyramid from the top.

Volume of the frustum = $\frac{1}{3}\text{(area of the base with side 6 units)(height)}-\frac{1}{3}\text{(area of the base with side MN)}(Height)$

Since ΔAPO' and ΔAOQ are similar so

$\frac{AO}{AO'}= \frac{OQ}{O'P}$

$\frac{9}{6}= \frac{3}{O'P}$

O'P = $\frac{3\times6}{9}=2$ units

Therefore, side MN = 2× O'P = 4 units

Now we put these values in the formula

Volume of the frustum = $\frac{1}{3}(6\times6)(9)}-\frac{1}{3}(4\times4)(6)$

= $\frac{1}{3}(324)-(\frac{1}{3}\times96)$

= $\frac{324}{3}-\frac{96}{3}$

= $\frac{324-96}{3}=\frac{228}{3}$

= 76 unit³

8 0

3 years ago

Simplify.

alekssr [168]

Answer: Answer #1

Step-by-step explanation: −3.3m+9.2n−4.2 Brainliest please?

6 0

3 years ago