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AlexFokin [52]
2 years ago
11

Help asap Please Urgent!!!!

Mathematics
2 answers:
iogann1982 [59]2 years ago
5 0
The mean would be 10.6 seconds. Hope this helped!
vlabodo [156]2 years ago
3 0
There are 14 times in the table.  Add up all 14 times, and divide the sum by 14.  The result is the "mean 100-meter sprint time," assuming that you've rounded this off to the nearest tenth of a second.

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Question 2 of 10
pickupchik [31]

Answer:

B. 12.5%

Step by step explanation:

$400=$50fee

$200=$25fee

$100=$12.5fee

6 0
2 years ago
A pair of shoes cost $220. You have a 20% coupon and the tax is 8.25%. What is the total cost of the shoes?
Tom [10]

Answer: 190.52

Step-by-step explanation:

5 0
3 years ago
Find 55% of 164 I don't get it I need help can someone help me like right now please
IgorC [24]
55\%\ of\ 164\ is...\\\\ \frac{55}{100} \times \frac{164}{1} =\\\\55*164=9020\\100*1=100\\\\ \frac{9020}{100}\approx90\\\\20\ is\ left\ over.\\\\90.20\\\\\\55\%\ of\ 164\ is\ 90.2
7 0
3 years ago
Find all the zeros of the function <br> g(x)=x^3-4x^2-x+22
vagabundo [1.1K]

Answer:

x = -2, x = 3 − i√8, and x = 3 + i√8

Step-by-step explanation:

g(x) = x³ − 4x² − x + 22

This is a cubic equation, so it must have either 1 or 3 real roots.

Using rational root theorem, we can check if any of those real roots are rational.  Possible rational roots are ±1, ±2, ±11, and ±22.

g(-1) = 18

g(1) = 18

g(-2) = 0

g(2) = 12

g(-11) = 1782

g(11) = 858

g(-22) = -12540

g(22) = 8712

We know -2 is a root.  The other two roots are irrational.  To find them, we must find the other factor of g(x).  We can do this using long division, or we can factor using grouping.

g(x) = x³ − 4x² − 12x + 11x + 22

g(x) = x (x² − 4x − 12) + 11 (x + 2)

g(x) = x (x − 6) (x + 2) + 11 (x + 2)

g(x) = (x (x − 6) + 11) (x + 2)

g(x) = (x² − 6x + 11) (x + 2)

x² − 6x + 11 = 0

Quadratic formula:

x = [ 6 ± √(36 − 4(1)(11)) ] / 2

x = (6 ± 2i√8) / 2

x = 3 ± i√8

The three roots are x = -2, x = 3 − i√8, and x = 3 + i√8.

5 0
3 years ago
11+11=4<br> 22+22=16<br> 33+33=<br> What’s the answer
s344n2d4d5 [400]

Answer:

what method exactly r u using ????

4 0
3 years ago
Read 2 more answers
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