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1 year ago

8x^2+3xy+4y^2_12x^2+3xy-5y^2

Mathematics

2 answers:

antiseptic1488 [7]1 year ago

7 0

Answer:

- 4x² + 6xy - y²

Step-by-step explanation:

8x² + 3xy + 4y² - 12x² + 3xy - 5y² ← collect like terms

= (8x² - 12x² ) + (3xy + 3xy) + (4y² - 5y²)

= - 4x² + 6xy - y²

Zarrin [17]1 year ago

6 0

Answer:

8x^2+6xy-5y^2+8y_1^2x^2

Step-by-step explanation:

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16% of what equals 44?

Tatiana [17]

44 is 16% of 275. 275 times 0.16 is 44

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2 years ago

Find the zeros of the function by factoring 3x^2+ 10x=8

Wittaler [7]

Answer:

$x=\frac{2}{3}, -4$

Step-by-step explanation:

hope this helps!

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2 years ago

Help me with the work

Tpy6a [65]

Answer:

Option B k > 0

Step-by-step explanation:

we know that

Observing the graph

The slope of the line is positive

The y-intercept is negative

we have

$3y-2x=k(5x-4)+6\\ \\3y=5kx-4k+6+2x\\ \\3y=[5k+2]x+(6-4k)\\ \\y=\frac{1}{3}[5k+2]x+(2-\frac{4}{3}k)$

The slope of the line is equal to

$m=\frac{1}{3}[5k+2]$

Remember that the slope must be positive

$5k+2> 0\\ \\k > -\frac{2}{5}$

The value of k is greater than -2/5

Analyze the y-intercept

$(2-\frac{4}{3}k) < 0\\ \\ 2 < \frac{4}{3}k\\ \\1.5 < k\\ \\k > 1.5$

1.5 is greater than zero

the solution for k is the interval ------> (1.5,∞)

therefore

must be true

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3 years ago

HELP I WILL GIVE BRAINLEIST OR WHATEVER 50 POINTS

Ilya [14]

answer:

a. scarf costs today = $6

b. scarf costs 3 days from now = $3

step-by-step explanation:

1/2 off means you would multiply the amount by 1/2 then subtract

a. original price of scarf: $12

12 X 1/2 = 6

12 - 6 = 6

— scarf costs today = $6

do the same thing but this time it is a different number

b. 12 X 3/4 = 9

12 - 9 = 3

— scarf costs 3 days from now = $3

3 0

2 years ago

What does 14x - 200y = when x = 12 and y = 3.2?

myrzilka [38]

14(12)-200(3.2)
168-640= -472

5 0

2 years ago

Read 2 more answers