3 years ago

What’s -4b + (-9k) - 6 - 3b +12

Mathematics

1 answer:

umka2103 [35]3 years ago

3 0

Answer:

-7b-9k=6

Step-by-step explanation:

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I’m thinking of two numbers one of them is 11 more then the other and their sum is 131 what are the numbers

solong [7]

Answer:

60 and 71

Step-by-step explanation:

Take 131

subtract the 11 from the question to get 120

Then split 120 into two parts - 60.

Add the 11 to one part

That's it! ^^

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3 years ago

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PLEASE HELP MATH

Novosadov [1.4K]

I believe C is your answer.
I hope this helps!

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Find the distance between P1(1, -91°) and P2(3, 335°) on the polar plane.

Dmitrij [34]

Answer:

2.749

Step-by-step explanation:

Use the polar distance formula:

$\sqrt{r_{1}^{2}+{r_{2}^{2}-2 r_{1} r_{2}cos(theta_{1} -theta_{2})$

$\sqrt{10^{2}+{3^{2}-2(1) (3)cos(225-(-91))$

2.749

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3 years ago

Gail can use her 12% employee discount once a week. Last Sunday, she bought a $45 sweater at 1/3 off and used her discount on th

NNADVOKAT [17]

Statement 1 : Gail bought a $45 sweater at 1/3 off.

Discount in Sweater Purchase:

$\frac{1}{3} \; of \; 45 = \frac{1}{3} \times 45 \; = \;\frac{45}{3} =\$15$

Statement 2: Gail can use her 12% employee discount once a week and used her discount on the suit priced at $140.

Discount in Suit Purchase:

$12\% \; of \; 140 =\frac{12}{100} \times 140 = 0.12 \times 140 = \$16.8$

Conclusion:

Discount in Suit Purchase ($16.8) is greater than Discount in Sweater Purchase ($15)

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3 years ago

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Expand and simplify (6x-2)^2

IgorLugansk [536]

Answer:

$\sf 36x^2 -24x +4$

solving step wise:

$\sf (6x-2)^2$

$\sf (6x-2)(6x-2)$

$\sf 36x^2 -12x -12x +4$

$\sf 36x^2 -24x +4$

$\sf (6x-2)^2$

$\sf (6x)^2 +2*6x*-2+(-2)^2$

$36x^2 -24x +4$

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3 years ago

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