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2 years ago

Help me plz help me plz ??

Mathematics

2 answers:

Oduvanchick [21]2 years ago

7 0

Answer:

I just want points hahahaha

hram777 [196]2 years ago

6 0

Y=2X+7 because you’re adding 2 to every section. I hope this helps you unlike that other guy who answered the question just for points.

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Factor 6y^2(y^2+6y+9) completely.

natali 33 [55]

$6y^2(y^2+6y+9)\\\\=6y^2(y^2+2\cdot 3 \cdot y + 3^2)\\\\=6y^2(y+3)^2\\\\=6y^2(y+3)(y+3)$

7 0

2 years ago

Factorise the following.

spin [16.1K]

Answer:

x²(9x– 11)(9x + 11)

Step-by-step explanation:

81x⁴ – 121x²

The expression can be factorised as follow:

81x⁴ – 121x²

x² is common to both term. Thus:

81x⁴ – 121x² = x²(81x² – 121)

Recall:

81 = 9²

121 = 11²

Therefore,

x²(81x² – 121) = x²(9²x² – 11²)

= x²[(9x)² – 11²]

Difference of two squares

x²(9x– 11)(9x + 11)

Therefore,

81x⁴ – 121x² = x²(9x– 11)(9x + 11)

3 0

2 years ago

1. Fifty-eight thousandths

kap26 [50]

fifty-eight thousandths?

4 0

2 years ago

Evaluate 12 (math).......

Diano4ka-milaya [45]

Evaluating Expressions Using Algebra Calculator

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First type the expression 2x.Then type the @ symbol.Then type x=3.Try it now: 2x @ x=3

5 0

3 years ago

I came in super late

Allushta [10]

Since we know that 1/4 is equal to 25%, or 0.25 in decimal form, we are able to work with 0.75 in the expression.

We are told to use j as the original price of the jeans, so we can set up the expression:

$j-0.25j$

to represent the cost of the jeans with the discount.

Then to simplify, we simply take out j as a common factor, and solve what's in the parentheses:

$j(1-0.25)$

$j(0.75)$ or $0.75j$

Using this equation, we can solve for the b part of the question. If the pair of jeans originally costs $60, plug in 60 to where j is in the expression:

$0.75j$

$0.75(60)=45$

Therefore, the cost of the jeans after the discount is C) $45.

8 0

3 years ago