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2 years ago

HOMEWORK HELP!

Mathematics

1 answer:

lisov135 [29]2 years ago

4 0

Answer:

67.5sin12(x - 7.5) + 67.5

= 67.5[sin 12(x - 7.5) + 1]

= 67.5[sin(12x - 90) + 1]

= 67.5[ sin(12x)cos90 - cos(12x)sin90 + 1]

= 67.5[ -cos12x + 1]

= 67.5 - 67.5cos12x

Step-by-step explanation:

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19.76x+227=-92.57+1052

yuradex [85]

x=37+1/15.0839694656

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3 years ago

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Directions: Show ALL work. NO WORK=NO CREDIT!

Savatey [412]

Answer:

$18.75

Step-by-step explanation:

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2 years ago

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Question

Goryan [66]

Given:

(2, 4) and (3, 3) are on the line.

To find:

The equation of line in point slope form.

Solution:

If a line passes through a point $(x_1,y_1)$ with slope m, then the point slope form of the line is

$y-y_1=m(x-x_1)$

(2, 4) and (3, 3) are on the line. So, slope of the line is

$m=\dfrac{y_2-y_1}{x_2-x_1}$

$m=\dfrac{3-4}{3-2}$

$m=\dfrac{-1}{1}$

$m=-1$

The slope of a line is -1 and it passes through (2,4). So, an equation in point slope form is

$y-4=-1(x-2)$

Therefore, an equation of the line in point slope form is $y-4=-1(x-2)$ .

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2 years ago

What is the volume of the composite figure? Express the

Papessa [141]

Answer:

$V=312\pi\ mm^{3}$

Step-by-step explanation:

we know that

The volume of the composite figure is equal to the volume of a semi-sphere plus the volume of the cone

$V=\frac{4}{6}\pi r^{3} +\frac{1}{3} \pi r^{2} h$

we have

$r=6\ mm$

$h=14\ mm$

substitute

$V=\frac{4}{6}\pi (6)^{3} +\frac{1}{3} \pi (6)^{2} (14)$

$V=144\pi +168\pi$

$V=312\pi\ mm^{3}$

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2 years ago

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Please help I'll give the brainiest to the right answer!

Anna [14]

Answer:

$x=1$

Step-by-step explanation:

Because vertical angles are always equal, we want to solve $50x+10=70x-10$ .

We can add 10 to both sides to get $50x+20=70x$ .

We can subtract $50x$ from both sides to get $20=20x$ .

Lastly, we divide both sides by 20 to get $1=x$ .

So, $\boxed{x=1}$ and we're done!

The check is left as an exercise to the reader.

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2 years ago

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