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2 years ago

Tell whether the equation has the ordered pair as a solution y=6x; (-7,-42)

Mathematics

1 answer:

Ber [7]2 years ago

3 0

Answer:

Yes

Step-by-step explanation:

Substituting in x = -7, we get y = 6(-7) = -42, which is the same as the y coordinate of the given point.

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If the diameter of a circle is 15 inches, what is the radius?

amm1812

Answer:

7.5

Step-by-step explanation:

R= d/2

Divide 15 by 2

7 0

3 years ago

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The ratio of a number and 18 is equal to the difference of a number squared and 5

boyakko [2]

Answer:

The number is 2.26

Step-by-step explanation:

Let The given numbers be x

Now according to question :

x : 18 = x² - 5

I.e x = 18 × ( x² - 5 )

or, x = 18 × x² - 90

or, 18 x² - x - 90 = 0

Or, From quadratic equation , the value of x

x = $\frac{-b\pm \sqrt{b^{2}-4\times a\times c}}{2\times a}$

Or, x = $\frac{+\pm \sqrt{-1^{2}-4\times 18\times -90}}{2\times 18}$

Or, x = $\frac{1\pm \sqrt{6481}}{36}$

So, x = $\frac{1\pm 80.50}{36}$

∴ x = $\frac{81.50}{36}$ = 2.26

Hence The number is 2.26 Answer

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3 years ago

How many hours she excercises

ivann1987 [24]

3/4 an hour equals 45 minutes. 45 * 6 = 270 minutes over 6 days 1 hours = 60 minutes 270 / 60 = 4.50 hours Hope I helped! Pick me as brainliest answer!

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4 years ago

To visit her grandmother, Melek takes a motorcycle 3.8, kilometers and a horse 3.32, point, 32 kilometers. In total, the journey

yan [13]

Malik to visit her grandmother takes a motorcycle 3.8 kilometres at a horse 3.3 2.3 32 kilometres in total journey takes 50.5 4 minutes total kilometres which mlx journey is 7.725 kilometres

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3 years ago

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Given the function, ƒ(x) = |x - 2| + 1, choose the correct range written using interval notation.

AVprozaik [17]

Range of f(x) = |x - 2| + 1 is [1, ∞)

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4 years ago