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Nitella [24]
3 years ago
8

How to solve this equation 2√4

Mathematics
1 answer:
guapka [62]3 years ago
6 0

Answer:

4

Step-by-step explanation:

First things first we will need to solve the square root.

\sqrt{4} = 2

We can check this by squaring 2.

2^{2} = 2 x 2 = 4

Now that we have solved the square root, we are left with 2(2). 2 x 2.

2(2) = 4

2\sqrt{4} = ?

2(2) = ?

4

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A hovercraft takes off from a platform. Its height (in meters), xx seconds after takeoff, is modeled by: h(x)=-2x^2+20x+48h(x)=?
tangare [24]

Answer: 5 seconds

<u>Step-by-step explanation:</u>

Maximum height is the y-value of the vertex. The number of seconds at maximum height is the x-value (aka axis of symmetry).

h(x) = -2x² + 20x + 48

      a=-2    b=20   c=48

Axis of symmetry: x = \frac{-b}{2a}

                                 = \frac{-20}{2(-2)}

                                 = \frac{-20}{-4}

                                 = 5

     

8 0
4 years ago
Read 2 more answers
Find the integer that makes this subtraction statement true -3 - ? = -5
Elenna [48]

Answer:

\boxed{ \bold{ \huge{ \boxed{ \sf{2}}}}}

Step-by-step explanation:

Let the missing integer be x

Solve for x

\sf{ - 3 - x =  - 5}

Move 3 to right hand side and change it's sign

\dashrightarrow{ \sf{ - x =  - 5 + 3}}

The negative and positive integers are always subtracted but posses the sign of the bigger integer

\dashrightarrow{ \sf{ - x =  - 2}}

Change the signs of both sides

\dashrightarrow{ \boxed{ \sf{x = 2}}}

Hope I helped!

Best regards! :D

7 0
4 years ago
Necesito las respuestas
Stels [109]

Answer:

I need it in English please so I can helps

3 0
2 years ago
Please help me with this
Arturiano [62]

Answer:

C

Step-by-step explanation:

4 0
4 years ago
Someone plz help me fast for my exam
olasank [31]

Answer:

A<w

Step-by-step explanation:

Hopefully this helps

8 0
3 years ago
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