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2 years ago

Math. Please Help No work needed

Mathematics

1 answer:

Pachacha [2.7K]2 years ago

3 0

Answer:

15 degrees

Step-by-step explanation:

It touched 15 degrees on minute 6

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3 years ago

A sandbox is being built in a park. The diagram shows the four vertices of the sandbox. Each unit in the

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Answer:

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Step-by-step explanation:

the length is 10, and the height is 9.

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2 years ago

Find the exact values of a) sec of theta b)tan of theta if cos of theta= -4/5 and sin<0

Gre4nikov [31]

Answer:

Using trigonometric ratio:

$\sec \theta = \frac{1}{\cos \theta}$

$\tan \theta = \frac{\sin \theta}{\cos \theta}$

From the given statement:

$\cos \theta = -\frac{4}{5}$ and sin < 0

⇒ $\theta$ lies in the 3rd quadrant.

then;

$\sec \theta = \frac{1}{-\frac{4}{5}} = -\frac{5}{4}$

Using trigonometry identities:

$\sin \theta = \pm \sqrt{1-\cos^2 \theta}$

Substitute the given values we have;

$\sin \theta = \pm\sqrt{1-(\frac{-4}{5})^2 } =\pm\sqrt{1-\frac{16}{25}} =\pm\sqrt{\frac{25-16}{25}} =\pm \sqrt{\frac{9}{25} } = \pm\frac{3}{5}$

Since, sin < 0

⇒ $\sin \theta = -\frac{3}{5}$

now, find $\tan \theta$ :

$\tan \theta = \frac{\sin \theta}{\cos \theta}$

Substitute the given values we have;

$\tan \theta = \frac{-\frac{3}{5} }{-\frac{4}{5} } = \frac{3}{5}\times \frac{5}{4} = \frac{3}{4}$

Therefore, the exact value of:

(a)

$\sec \theta =-\frac{5}{4}$

(b)

$\tan \theta= \frac{3}{4}$

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3 years ago

Find the volume of a rectangular prism with a length of 2.5, a width of 8 and a height of 12. a0 cubic units.

Stella [2.4K]

Answer:

240 cubic units

Step-by-step explanation:

2.5×8×12=240cubic units

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2 years ago

For the following system, use the second equation to make a substitution for y in the first equation.

Anuta_ua [19.1K]

Answer:

2x+3x+4=6

Step-by-step explanation:

You'd plug in the y-equation which is y=3x+4 into the placement of the y in the first equation 2x+y=6,

Which would then result in 2x+3x+4=6, which is the answer

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3 years ago