2 years ago

What are the sum of the two pink angles?

Mathematics

1 answer:

jenyasd209 [6]2 years ago

5 0

Answer:

45 degrees

Step-by-step explanation:

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Simplify sin^2y/sec^2 y−1 to a single trigonometric function

liubo4ka [24]

Answer:

$\frac{ { \sin}^{2} y}{ { \sec}^{2}y - 1 } = { \cos }^{2} y$

Step-by-step explanation:

We know that ${ \tan }^{2} y = { \sec }^{2} y - 1$

Also , ${ \tan}^{2} y = \frac{ { \sin }^{2} y}{ { \cos }^{2}y }$

So ,

$\frac{ { \sin }^{2}y }{ { \sec }^{2}y - 1 } = \frac{ { \sin}^{2} y}{ { \tan }^{2} y} = \frac{ { \sin }^{2}y }{ \frac{ { \sin}^{2} y}{ { \cos}^{2}y } } = { \cos }^{2} y$

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2 years ago

Change 34.55% to a decimal

Jet001 [13]

.3455 is the correct answer.

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3 years ago

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What is the circumference of a circle with a diameter of 7 inches? (use for pi)

Marrrta [24]

Answer:

21.9

Step-by-step explanation:

circumference = pi x diameter

3.14 x 7 = 21.9

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3 years ago

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What is the volume of this rectangular prism?

ollegr [7]

Answer:

$57,600cm {}^{2}$

<em><u>Solving steps:</u></em>

To find the volume of a rectangular prism, multiply its 3 dimensions: length x width x height. The volume is expressed in cubic units.

=> 40 cm ${}^{2}$ × 30cm ${}^{2}$ × 48 cm ${}^{2}$

multiply all the numbers

=> 57,600cm ${}^{2}$

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2 years ago

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Cooper bought a serving platter originally priced at $20 but on sale for 50% off. After 10% sales tax, what was the total cost?

Gelneren [198K]

Answ

$11.00

Step-by-step explanation:

A quick way to do this would be as follows: 1.10 ( 0.50*$20), or $11.00.

0.50($20) gives us the sale price (at half off); that's half of $20, or $10.

The total due is then $10 (item cost) plus $1 (tax), or $11

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2 years ago