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3 years ago

Find the sine of angle R.

Mathematics

1 answer:

Tresset [83]3 years ago

4 0

Answer:

Your answer would be C

Step-by-step explanation:

5/12 = 0.41 which is the angle

also follow the sequence of events in the order of p, q, r. Which will explain why I got 5/12

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Tom has a large photo he wants to shrink to wallet -sized. Its width is 20 cm and its link is 30 cm. If he wants the width to be

solniwko [45]

Pretty sure you just scale it down 4 times
(Because 20/4=5cm)

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3 years ago

What’s the answer to -7(x-4) =63

choli [55]

-7(x-4) = 63. Divide each side by -7.

x - 4 = -9. Add 4 to each side.

x = -5

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3 years ago

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Round 1.6 to the nearest whole number

Elden [556K]

Answer:

The Answer is 2

Step-by-step explanation:

The rule is 4 or less let it rest. 5 or more raise the score. 6 is greater than 5 so you raise it to two

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3 years ago

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A supermarket sells two flavors of cereal: a fruit flavor and a chocolate flavor. In a market survey, the event that a customer

Sedaia [141]

This is a binomial distribution.
p = 0.71, q = 1 - p = 1 - 0.71 = 0.29, n = 20

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4 0

4 years ago

The sum of two numbers is 9.9, and the sum of the squares of the numbers is 53.21. What are the numbers?

Snezhnost [94]

Answer:

There are two possibilities:

$x_{1} = 3.5$ and $y_{1} = 6.4$

$x_{2} = 6.4$ and $y_{2} = 3.5$

Step-by-step explanation:

Mathematically speaking, the statement is equivalent to this 2-variable non-linear system:

$x + y = 9.9$

$x^{2} + y^{2} = 53.21$

First, $x$ is cleared in the first equation:

$x = 9.9 - y$

Now, the variable is substituted in the second one:

$(9.9-y)^{2} + y^{2} = 53.21$

And some algebra is done in order to simplify the expression:

$98.01-19.8\cdot y +2\cdot y^{2} = 53.21$

$2\cdot y^{2} -19.8\cdot y +44.8 = 0$

Roots are found by means of the General Equation for Second-Order Polynomials:

$y_{1} \approx \frac{32}{5}$ and $y_{2} \approx \frac{7}{2}$

There are two different values for $x$ :

$y = y_{1}$

$x_{1} = 9.9-6.4$

$x_{1} = 3.5$

$y = y_{2}$

$x_{2} = 9.9 - 3.5$

$x_{2} = 6.4$

There are two possibilities:

$x_{1} = 3.5$ and $y_{1} = 6.4$

$x_{2} = 6.4$ and $y_{2} = 3.5$

5 0

3 years ago