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3 years ago

( ͡° ͜ʖ ͡°) HELP ME OUT M8

Mathematics

2 answers:

bagirrra123 [75]3 years ago

6 0

Carina's mistake was that she subtracted 3.40 from 5.27.

goldenfox [79]3 years ago

4 0

Carina should've subtracted 3.40 from 5.27

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Complete the equation, and tell which property you used. 8 x (14+7) = _________+ (8 x 7)

melamori03 [73]

By distributive property, 8 x (14 + 7) = (8 x 14) + (8 x 7)

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3 years ago

Can anybody help? I do not understand:(

Dvinal [7]

Six now have a good day happy face bye-bye

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3 years ago

Help with trigonometry

Oksanka [162]

Answer:

○B. $\frac{\sqrt{6}}{2}$

Step-by-step explanation:

Trigonometric Identities

$\frac{y}{r} = sin\:θ$

$\frac{x}{r} = cos\:θ$

$\frac{y}{x} = tan\:θ$

$\frac{r}{x} = sec\:θ$

$\frac{r}{y} = csc\:θ$

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Radius Formula

${y}^{2} + {x}^{2} = {r}^{2}$

${[-\sqrt{15}]}^{2} + {[-\sqrt{10}]}^{2} = {r}^{2} → 15 + 10 = {r}^{2} → 25 = {r}^{2}\\ \\ 5 = r$

* Since we are talking about radii, we only want the NON-NEGATIVE root.

In this case, we will not be using the radius in our ratio, according to the trigonometric identity above because we are using the tangent ratio:

$\frac{\sqrt{6}}{2} = \frac{-\sqrt{15}}{-\sqrt{10}} = \sqrt{1\frac{1}{2}}$

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3 years ago

What is the constant of variation for the quadratic variation? 0.1y = 3x2

svet-max [94.6K]

Answer:

The constant of variation for the given quadratic equation is, 30

Step-by-step explanation:

One of the form of a quadratic equation is written as:

$y = kx^2$ ....[1]

where k is the coefficient and for this case the constant of variation.

In order to obtain the answer for the given equation, we write the given equation to the form above.

$0.1y=3x^2$ or

$y=(\frac{3}{0.1})x^2$ or

$y=30x^2$

Comparing this equation with equation [1], to get the value of k;

k=30.

therefore, the constant of variation is, 30.

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