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Murljashka [212]
3 years ago
5

Ruby and her friends are going into a restaurant. How much would it cost to buy 3

Mathematics
1 answer:
Gnoma [55]3 years ago
8 0

Answer:

Step-by-step explanation:

3x2.25=6.75

4x4=16

16+6.75=22.75

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12. For which of the following solids are all cross sections circular?
Sliva [168]

Answer:

2

Step-by-step explanation:

3 0
3 years ago
Please!!!!!! Help!!!! And both are different
Shalnov [3]

Answer:

if ur du ur us du

Step-by-step explanation:

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5 0
3 years ago
Read 2 more answers
suppose that a water fountain produces a stream of water that follows the shape of a parabola. assigning the origin of a coordin
Readme [11.4K]

The quadratic regression equation for the stream of water is y=-0.139x^{2} +1.667x {parabola}

     

Given that the water stream produced by fountain is parabola

Vertex of parabola is (6,5) , parbola is facing downward,axis of symmetry of parabola is x=6 and parabola passes through (0,0)

according to symmetry the third point on the parabola is (12,0)

General equation for a parabola⇒ Y=-4aX^{2}

⇒(y-5)=-4a(x-6)^{2}    { as the Vertex of parabola is (6,5) }

⇒(y-5)=-4a(x^{2} +36-12x)

subtituting (0,0) in the equation to get the value of a

⇒-5=-4a(36)

⇒ a=\frac{-5}{144}                      

equation of parabola⇒(y-5)=-4( \frac{5}{144})(x-6)^{2}

Therefore,The quadratic regression equation for the stream of water is y=-0.139x^{2} +1.667x

Learn more about parabola here:

brainly.com/question/21685473

#SPJ4              

                                 

                                       

3 0
2 years ago
I NEED HELP PLEASE!!
ziro4ka [17]
Square root of 12 (\sqrt{12})
Square root of 18 (\sqrt{18})

You can multiply these two together to get:

\sqrt{12 * 18} =  \sqrt{216} = 6 \sqrt{6}

Therefore your answer is 6 square root of 6.
7 0
3 years ago
Suppose a principal amount of $7500 was invested at an interest rate of 6%. How long did it take to reach $10650?
Oliga [24]

Based on the information how long did it take to reach $10650 is 7years.

Given:

Principal=$7,500

Rate=6%

Amount=$10650

Time=?

Simple Interest(SI)=A-P

=$10650-$7500

=$3150

Time=(100×SI)/(p×r)

T=(100×3150)/(7500×6)

T=315,000/45,000

T=7 years

Inconclusion how long did it take to reach $10650 is 7years.

Learn more here:

brainly.com/question/15610358

6 0
3 years ago
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