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asambeis [7]
3 years ago
5

Help!! Will mark brainliest

Mathematics
2 answers:
andrezito [222]3 years ago
7 0

Answer:

-4.9t^2 + 160t + 290 = 0

t = [-160 +- sqrt(160^2 - 4*-4.9*290)]/(2*-4.9)

Positive Solution::

t = 34.37 seconds

Step-by-step explanation:

Monica [59]3 years ago
5 0

Answer:

Jhgfchjjgyyhjj

Step-by-step explanation:hhgdfhhjjhg

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X^3+3x^5=x5 what's the missing expression
shutvik [7]
<span><span><span>x3</span>+3x5</span>=x5</span><span>3x5+x3=x5</span>Subtract x^5 from both sides.<span>3x5+x3−<span>x5</span>=x5−<span>x5</span></span><span>2x5+x3=0</span>Factor left side of equation.<span><span><span>x3</span>(2x2+1)</span>=0</span>Set factors equal to 0.<span><span><span>x3</span>=0‌‌ or ‌‌2x2+1</span>=0</span><span>x=<span>0</span></span>
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3 years ago
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Solve the linear equation by combining like terms: 23 + 7 - 2x = 8x
Aleks [24]

Answer:

23+7-2x=8x

We simplify the equation to the form, which is simple to understand  

23+7-2x=8x

We move all terms containing x to the left and all other terms to the right.  

-2x-8x=-23-7

We simplify left and right side of the equation.  

-10x=-30

We divide both sides of the equation by -10 to get x.  

x=3

Step-by-step explanation:

3 0
3 years ago
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25x89 divide by 12 then times it by 9
Soloha48 [4]

Answer:

1668.75

Step-by-step explanation:

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What's your fav spongebob character?
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Mine is patrick star
3 0
3 years ago
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Please help and please give explanation
Yuki888 [10]

Answer:

cylinder surface area = 201.06in²

surface area of cone = 56.56in.²

Step-by-step explanation:

cylinder surface area formula = 2πrh + 2πr²

refer the pic

cone surface area formula = πr ( r + √h² + r² )

refer the sec pic

surface area of the solid

= ( 201.06 + 56.56 ) in.²

= 257.62in.²

= 258in.²

4 0
2 years ago
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