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3 years ago

Help me please! I really need help

Mathematics

2 answers:

Brums [2.3K]3 years ago

8 0

If you looked it up online you could find it. look on safari

amm18123 years ago

6 0

I think the answer is going to B

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Find DF D 20 E 10 F DF =

vichka [17]

Answer:

Step-by-step explanation:

it is right

8 0

3 years ago

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What is the solution to the equation 6x-8=4x

ra1l [238]

Answer:

x=4

Step-by-step explanation:

6x-8=4x

-6x -6x

-8 = -2x

/2 /2

x=4

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4 years ago

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At a basketball game, an air cannon launches T-shirts into the crowd. The function y=−1/8x^2 + 4x represents the path of a T-shi

Juliette [100K]

Answer:

The T-shirt lands in the bleachers at a height of 14 feet.

Step-by-step explanation:

The point where they meet is the solution of the simultaneous system of equations:

$y = -\frac{1}{8}x^2+4x$ ...........................................(1)

$3y = 2x - 14$ ..............................................(2)

From (2),

$y = \frac{2}{3}x-\frac{14}{3}$ .................................................(3)

Substituting (3) in (1),

$\frac{2}{3}x-\frac{14}{3} = -\frac{1}{8}x^2+4x$

Multiply through by 24 (the LCM of 3 and 8, the denominators of the fractions)

$(24\times\frac{2}{3}x)-(24\times\frac{14}{3}) = (-24\times \frac{1}{8}x^2)+(24\times4x)$

$16x - 112 = -3x^2+96x$

$3x^2-80x -112 = 0$

$(x-28)(3x+4) = 0$

$x-28 = 0$ OR $3x+4=0$

$x=28$ OR $x = -\frac{4}{3}$

The value of y represents the height.

Substituting for x in (3)

$y = \frac{2}{3}\times28-\frac{14}{3} = \frac{56}{3} - \frac{14}{3} = 14$

$y = \frac{2}{3}\times(-\frac{4}{3})-\frac{14}{3} = -\frac{8}{9} - \frac{14}{3} = -\frac{50}{9}$

We discard the negative answer.

Hence, the T-shirt lands in the bleachers at a height of 14 feet.

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3 years ago

What number is 12 more than 43

Nata [24]

55. If it says 12 more, you add 12 to 43 to get 55.

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3 years ago

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Mathilde has 20 pints of green paint. She uses 2/5 of it to paint a landscape and 3/10 of it while painting a clover. She decide

Alik [6]

Answer:

She would need one more pint.

Step-by-step explanation:

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3 years ago