3 years ago

Help in this Trigonometry question please

Mathematics

1 answer:

NeTakaya3 years ago

4 0

Answer:

Where is it I don't see it?

Step-by-step explanation:

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2x + 25x9 +3 What would x be for it to be equal

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Answer:

X=144

Step-by-step explanation:

2X+25×9+3=0

2X+288

2X= -288

X= -144

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2 years ago

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Alexei wants to hang a mirror in his boat and put a frame around it. The mirror and frame must have an area of 19.25 square feet

zhuklara [117]

Let

x---------> the thickness of the frame in feet

At-------> Area of the mirror and the frame in square feet

we know that

$At=19.25ft^{2}$ ------> equation $1$

$At=(3+2x)*(5+2x)\\ At=3*5+3*2x+5*2x+2x*2x\\ At=15+6x+10x+4x^{2} \\ At=4x^{2} +16x+15$ --------> equation $2$

equate equation $1$ and equation $2$

$19.25=4x^{2} +16x+15\\ 4x^{2} +16x+15-19.25=0\\ 4x^{2} +16x-4.25=0$

therefore

the answer is the option

$C. 4x2 + 16x - 4.25 = 0$

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3 years ago

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8. Which number's underlined digit is worth 2? 5,738 8,888 402 6,100

pentagon [3]

Answer:

402

Step-by-step explanation:

No number is shown with an underlined digit.

Only the number 402 has 2 in it that is in the units place. That digit has a value of 2.

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I need help with this please

oksano4ka [1.4K]

Answer:i can's see it very well sorry kid

Step-by-step explanation:i dont know

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