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Karo-lina-s [1.5K]
4 years ago
13

Geometry! please help

Mathematics
1 answer:
Triss [41]4 years ago
4 0

Answer: 5.2

Step-by-step explanation:

This is known as the heart beat method. Search it up for a better explinations.

Basically you putting 3/x = x/9 and simplifying to get sqrt27.

Search this up and watch the video for a better explination

heartbeat method geometry

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Verify this identity: secx-cosx = 1-cos^2x/cosx
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Step-by-step explanation:

sec x − cos x

Secant is the inverse of cosine:

(1 / cos x) − cos x

Find the common denominator:

(1 / cos x) − (cos² x / cos x)

Subtract:

(1 − cos² x) / cos x

5 0
3 years ago
If P*Q = PxQ - 7,<br> what is 9*5?
ycow [4]

Given problem:

 What is 9*5;

 The formula P*Q  = P x Q  - 7;

To  find 9*5, simply make P = 9 and Q = 5

Input into the equation and solve;

   

   P*Q  = P x Q  - 7    =   9 x 5 - 7

                                 = 45 - 7

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The solution to this problem is 38.

4 0
3 years ago
Can someone help me please. I have to show my work.
madreJ [45]

Answer:

Step-by-step explanation:

1. P = (width + lengh) * 2 = (23 + 10) * 2 = 33 * 2 = 66

  A = width * lengh = 23 * 10 = 230

2. width = 7

 P = (width + lengh) * 2 = ( 7 + 9) * 2 = 16 * 2 = 32

8 0
3 years ago
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il63 [147K]
(x+1)(x−4)(3x−4). Mark brainliest :))
3 0
4 years ago
Which is different?
s2008m [1.1K]

Answer:

Step-by-step explanation:

Remark

A B and D refer to what the cylinder can contain. They all refer to the hollowed out part of the cylinder.

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Answer: C

3 0
3 years ago
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