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Anastasy [175]
3 years ago
13

Multiply (4u - 9s) (4u+ 9s)

Mathematics
1 answer:
Vsevolod [243]3 years ago
4 0

Answer:

it would be 16u2-81s2 using a2-b2 formula

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What is the slope of the line that
shutvik [7]

Answer:

5/2

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
What is the ratio of 225 of 15
Luden [163]

Answer:

15:1

Step-by-step explanation:

225:15

÷15 both sides

15:1

3 0
3 years ago
Pls solve this for me :(
Rus_ich [418]

Answer:

33.83

Step-by-step explanation:

This is because if you trying to find h and the opposite side, you will have to use cos to get that answer. My using this equation

\cos(31)  =  \frac{29}{x}

You will find that x will equal 33.83

Hope this Helped

6 0
3 years ago
A random sample of adult female reaction times has a sample mean of x¯=394.3 milliseconds and sample standard deviation of s=84.
s2008m [1.1K]

Answer:

99.7%

Step-by-step explanation:

Given that mean (μ) = 394.3 ms and standard deviation (σ) = 84.6 ms.

The empirical rule states that for a normal distribution:

  1. 68% falls within one standard deviation (μ ± σ)
  2. 95% falls within two standard deviation (μ ± 2σ)
  3. 99.7% falls within three standard deviation (μ ± 3σ)

one standard deviation = 394.3 ± 84.6 = (309.7, 478.9). 68% falls within 309.7 and 478.9 ms

two standard deviation = 394.3 ± 2 × 84.6 = (225.1, 563.5). 95% falls within 225.1 and 563.5 ms

three standard deviation = 394.3 ± 3 × 84.6 = (140.5, 648.1). 99.7% falls within 140.5 and 648.1 ms

8 0
3 years ago
Sonia has three bracelets. she wears them all at the same time but in a diffrient order each day how many diffrent bracelet comb
LenaWriter [7]
There are 3 bracelets.
The first bracelet can occupy a position in 3 ways.
The second bracelet can occupy the remaining 2 positions in 2 ways.
The third bracelet can occupy the remaining position in 1 way.
The total number combinations is
3*2*1 = 6

Answer: 6
3 0
3 years ago
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