49 decreased by twice a number

On which of the following intervals is the function f (x) = 4 cos (2x - π) decreasing? x = pi over 2 to x = π x = 0 to x = pi over 2 x = pi over 2 to x = 3 pi over 2 x = π to x = 3 pi over 2

the length, breadth and height of a cuboid are in the ratio 4:2:3. The perimeter of the base of the cuboid is 54 cm. What is the height, in cm, of the cuboid.

What is 6n+5=4n-5n? I Tried to solve and I could'nt find an accurate answer.

Write 3 fractions equivalent to 1/8

Determine the value of x which satisfies the following equation. ln (4x+1) = 6

1, 4, 16, 64, 256 a. 4096 b. 1022 c. 1024 d. 1025

Matt and Taylor are taking a test. The test is designed to produce an overall mean score of 80, with a standard deviation of 6 for all test takers. Suppose Matt scored an 85 on the test and Taylor scored a 78 on the test.

A car skids to a stop, leaving four skid marks with an average length of 60 feet. The road is asphalt. Skid tests reveal a drag factor of 0.75. Since all four wheels were braking, the braking efficiency is 100% or 1.00.

A candidate for mayor plans to campaign at 5 shopping malls before the election. In how many different ways can the candidate schedule the visits? Enter your answer as a whole number, such as 42.

mark is constructing a walkway around his in ground pool the pool is 20 by 40 and the walkway will be 4 wide what is the area of the walkway