1 year ago

Undefined undefined undefined: undefined

Mathematics

1 answer:

olasank [31]1 year ago

8 0

The answer to this is five

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How can you find the reciprocal of 0.8

Sergeeva-Olga [200]

We know that 0.8 is the same as 4/5. The reciprocal is basically a the denominator over the numerator. So in this case, the reciprocal of 0.8 would be 5/4

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3 years ago

Solve: 7 - 5x = -5x - 6x + 7 *<br> 0<br> -6<br> No Solution<br> Infinitely many solutions

Bas_tet [7]

Answer:

if you move all the x to one side then the real numbers to the other then divide that shold give you your answer

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3 years ago

Explain how you can use a model to find 4 x 3/4 include a drawing and a solution

kirza4 [7]

Answer:

4 x 3/4 = 3

Step-by-step explanation:

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3 years ago

Antoine stands on a balcony and throws a ball to his dog, who is at ground level.

sdas [7]

Answer: The ball will hit the ground 4 seconds after being thrown.

Step-by-step explanation:

By definition, the ball hits the grounds when the height is zero.

Then, knowing that the Quadratic function that models that situation is:

$h(x)=-2x^2+4x+16$

You can make it equal to zero:

$0=-2x^2+4x+16$

Now you can use the Quadratic formula:

$x=\frac{-b\±\sqrt{b^2-4ac} }{2a}$

In this case you can identify that:

$a=-2\\b=4\\c=16$

Therefore, knowing these values, you can substitute them into the Quadratic formula and then evaluate, in order to find the solution:

$x=\frac{-4\±\sqrt{4^2-4(-2)(16)} }{2(-2)}\\\\x_1=4\\x_2=-2$

Choose the positive solution.

Then, the ball will hit the ground 4 seconds after being thrown.

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4 years ago

Find the measure of angle 1

tester [92]

Using Triangle sum theorem you add all the angles to make 180. So 47.7+51.1+<1=180
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-98.8 -98.8
<1= 81.2

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3 years ago