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serg [7]
3 years ago
6

Which is the simplified form of the expression?

Mathematics
1 answer:
Anon25 [30]3 years ago
4 0

Given:

Consider the given expression is:

10n-\dfrac{1}{3}(9n-12)

To find:

The simplified form of the given expression.

Solution:

We have,

10n-\dfrac{1}{3}(9n-12)

Using distributive property, it can be written as:

=10n-\dfrac{1}{3}(9n)-\dfrac{1}{3}(-12)

=10n-3n+4

=7n+4

Therefore, the correct option is A.

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92​% of what number is 253​?
Romashka-Z-Leto [24]
Let, the number = x
Then, x * 92% = 253
x = 253 / 0.92   [ 92% = 0.92 ]
x = 275

In short, Your Answer would be 275

Hope this helps!
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Solve for x. (Similar Triangles)
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Answer:

x = 1

Step-by-step explanation:

its a special right trianlge. So both sides are the same.

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The number line represents – 4.3 + 3 4 What is the sum? ​
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2 years ago
Dylan uses the expressions (x2 – 2x + 8) and (2x2 + 5x – 7) to represent the length and width of his bedroom. Which expression r
lawyer [7]

Answer:

2x⁴+x³-x²+54x+56

Step-by-step explanation:

Given the expression length of dylan room =  (x² – 2x + 8) and width = (2x² + 5x – 7), assuming the shap of the room is rectangular in nature, the formula for calculating area of a triangle is given as;

Area of rectangle = Length *Width

Area of the rectangle =  (x² – 2x + 8)(2x² + 5x – 7)

Area of the rectangle  = x²(2x² + 5x – 7) - 2x (2x² + 5x – 7) + 8(2x² + 5x – 7)

= (2x⁴+5x³-7x²)-(4x³+10x²-14x)+(16x²+40x-56)

expanding the bracket

= 2x⁴+5x³-7x²-4x³-10x²+14x+16x²+40x-56

Collecting the like terms;

= 2x⁴+5x³-4x³-7x²-10x²+16x²+40x+14x+56

= 2x⁴+x³-x²+54x+56

Hence, the expression that represents the area (lw) of Dylan's room is 2x⁴+x³-x²+54x+56

6 0
3 years ago
Read 2 more answers
I need help on this plz help me
Lana71 [14]
B hope this helps I took the test and got it right!
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3 years ago
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