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Volgvan
3 years ago
10

I need help on this homework

Mathematics
1 answer:
Ymorist [56]3 years ago
6 0

Answer:

The answer is y=-2x^2-8x+1

Step-by-step explanation:

I used an app called desmos and just plugged in the equation till i got the answer that looked like the image u gave.

Hope this helps

Sorry if not

Plz give brainliest

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1.678 rounded to the nearest hundredth​
Talja [164]

Good morning,

Answer:

1.678 rounded to the nearest hundredth is 1.68

Step-by-step explanation:

By looking at the number 1.678 it’s clear that the hundredth digit is 7

since 8∈{5,6,7,8,9} then we delete the 8 and add one to 7

we get 1.68 .

:)

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3 years ago
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A solid shape is made by joining two cones.
dlinn [17]

The surface area of the solid shape is the amount of space on it

The radius of the two cones is 2.93 cm

<h3>How to determine the radius?</h3>

The given parameters are:

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  • Cone 2: slant height, L = 3r
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The surface area of the shape is calculated using:

T = πr(L + l)

So, we have:

135.21 = πr(2r + 3r)

Evaluate

135.21 = 5πr²

Divide both sides by 5π

r² = 135.21/5π

Evaluate the quotient

r² = 8.61

Take the square root of both sides

r = 2.93

Hence, the radius of the cones is 2.93 cm

Read more about surface area at:

brainly.com/question/6613758

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