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blsea [12.9K]
2 years ago
12

Work out the value of expression a - 3b when a=16 and b=3.

Mathematics
1 answer:
Elan Coil [88]2 years ago
8 0

Answer:

your answer is going to have to be 7

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Which best describes the relationship between the successive terms in the sequence below?
zhuklara [117]

Answer:

You haven't displayed the full question

3 0
2 years ago
How many arangments of letters in PARALLEL
coldgirl [10]
There are 8! ways to arrange the 8 letters. Due to the repeated L (3×) and A (2×), only one out of (2!)(3!) = 12 of these is unique.

The number of unique arrangements is 8!/(2!*3!) = 3,360
5 0
3 years ago
What’s the domain and range of:<br> log(√(2x-1) + 3 )<br> Please explain how you got it too!!
Radda [10]

Two main facts are needed here:

1. The logarithm \log x, regardless of the base of the logarithm, exists for x>0.

2. The square root \sqrt x exists for x\ge0.

(in both cases we're assuming real-valued functions only)

By (2) we know that \sqrt{2x-1} exists if 2x-1\ge0, or x\ge\dfrac12.

By (1), we know that \log(\sqrt{2x-1}+3) exists if \sqrt{2x-1}+3>0, or \sqrt{2x-1}>-3. But as long as the square root exists, it will always be positive, so this condition will always be met.

Ultimately, then, we only require x\ge\dfrac12, so the function has domain \left[\dfrac12,\infty).

To determine the range, we need to know that, in their respective domains, \sqrt x and \log x increase monotonically without bound. We also know that x=\dfrac12 at minimum, at which point the square root term vanishes, so the least value the function takes on is \log3. Then its range would be [\log3,\infty).

3 0
3 years ago
The approximate distance in miles between Los Angeles and a commercial jet flying from Boston to Los Angeles can be found using
ki77a [65]
You're given the value of m so you plug that in the equation given to get 1500=-475t+2650. Now with some algebra just solve it for t! so subtract 2650 and get -1150=-475t. Now divide by -475 and get 2.4. Now the t value is already in hours, so there's no conversions, and the closest answer is A! This makes sense because it's an approximation :)
5 0
3 years ago
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4x ²-1=<br> HELP ME FAST IF ITS RIGHT ILL GIVE YOU BRAINLEIST !!!!!!
snow_tiger [21]

Answer:

(2x+1)(2x−1)

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
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