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3 years ago

Find the value of this expression and show ur work

Mathematics

1 answer:

alexdok [17]3 years ago

4 0

Answer:

-30/49

Step-by-step explanation:

You multiply the numbers, then add the negative symbol, when you multiply the numbers, you get:

10/7*3/7 which equals 30/49, which means the answer is -30/49

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Roman55 [17]

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3 years ago

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3 years ago

For f(x) = 3x +1 and g(x) = x - 6, find (f- g)(x).

Finger [1]

Answer:

c. -x + 3x + 7 = 2x+7

Step-by-step explanation:

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4 0

3 years ago

Find the measurement of angle 4 when angle 3=7x and 5=3x

Leya [2.2K]

Angle 4 will be 54°

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3 0

3 years ago

Find the missing side length leave your answers as radicals in the simplest form.

ira [324]

Answer:

Part 1) $x=\frac{10\sqrt{3}}{3}\ units$

Part 2) $y=5\ units$

Step-by-step explanation:

step 1

Find the value of x

In the right triangle of the figure

$sin(30^o)=\frac{(5\sqrt{3}/3)}{x}$ ---> opposite side angle of 30 degrees divided by the hypotenuse

Remember that

$sin(30^o)=\frac{1}{2}$

substitute

$\frac{1}{2}=\frac{(5\sqrt{3}/3)}{x}$

solve for x

$x=\frac{5\sqrt{3}}{3}(2)$

$x=\frac{10\sqrt{3}}{3}\ units$

step 2

Find the value of y

In the right triangle of the figure

$cos(30^o)=\frac{y}{x}$ ---> adjacent side angle of 30 degrees divided by the hypotenuse

we have

$x=\frac{10\sqrt{3}}{3}\ units$

$cos(30^o)=\frac{\sqrt{3}}{2}$

substitute

$\frac{\sqrt{3}}{2}=\frac{y}{\frac{10\sqrt{3}}{3}}$

$y=(\frac{\sqrt{3}}{2})(\frac{10\sqrt{3}}{3})$

$y=5\ units$

4 0

3 years ago