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antiseptic1488 [7]
3 years ago
13

What is the answer to 72 = 24 + w

Mathematics
2 answers:
maks197457 [2]3 years ago
8 0
72-24 is 48 w is 48 so thats answer
Karolina [17]3 years ago
8 0
W=48
to do this, u would do inverse operation. the opposite of addition is subtraction. so, u would subtract 72 by 24 which is 48.
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Police records in the town of Saratoga show that 17 percent of the drivers stopped for speeding have invalid licenses. If 24 dri
Ymorist [56]

Answer:

Step-by-step explanation:

Given

17 % of the drivers stopped have invalid licenses

n=24 drivers are stopped

using Binomial distribution

^nC_r(p)^r(q)^{n-r}

here p=0.17

q=1-0.17=0.83

(a)none will have valid license i.e. r=0

P(r=0)^{24}C_0(0.17)^0(0.83)^{24}=(0.83)^{24}=0.0114

(b)Exactly one have invalid license i.e. r=1

P(r=1)=^{24}C_1(0.17)^1(0.83)^{23}=24\times 0.17\times (0.83)^{23}

=0.0561

(c)At least 2 will have invalid license i.e. r\geq 2

P(r\geq 2)=1-P(r=0)-P(r=1)

P(r\geq 2)=1-0.0114-0.0561

P(r\geq 2)=0.932

3 0
3 years ago
The manager of a fleet of automobiles is testing two brands of radial tires and assigns one tire of each brand at random to the
Darya [45]

Answer:

Brand 1    Brand 2    Difference

37734       35202        2532

45299      41635         3664

36240      35500        740

32100      31950         150

37210       38015       −805

48360     47800        560

38200    37810          390

33500    33215        285

Sum of difference = 2532+ 3664+740+150 −805+  560 +390 +285 = 7516

Mean = d=\frac{7516}{8}

Mean = d=939.5

a) d= 939.5

\text{Sample Standard deviation, s} = \sqrt{\dfrac{(x-\bar{x})^2}{n-1}}

=\sqrt{\dfrac{(2532-939.5)^2+(3664-939.5)^2+(740-939.5)^2 ...+(285-939.5)^2}{8-1}}

=1441.21

b)SD= 1441.21

c)Calculate a 99% two-sided confidence interval on the difference in mean life.

confidence level =99%

significance level =α= 0.01

Degree of freedom = n-1 = 8-1 =7

So, t_{\frac{\alpha}{2}}=3.499

Formula for confidence interval = \left( \bar{X} \pm t_{\frac{\alpha}{2}} \times \frac{s}{\sqrt{n}} \right)

Substitute the values

confidence interval = 939.5 \pm 3.499 \times \frac{1441.21}{\sqrt{8}} \right)

confidence interval = 939.5 - 3.499 \times \frac{1441.21}{\sqrt{8}} \right) to  = 939.5 + 3.499 \times \frac{1441.21}{\sqrt{8}} \right)

Confidence interval −843.396\ to  2722.396

8 0
3 years ago
Pweas help....10 points and brainiest and thznks<3
Travka [436]

Answer:

F&H are vertical angles, D&H are corresponding angles, E&H are adjacent angles, and B&H are alternate interior angles.

Step-by-step explanation:

Hope this helps. Tell me if you need and explanation.

7 0
2 years ago
Read 2 more answers
In the equation 9 more than 3 times a number is -6, what does a number equal
atroni [7]
So 9 more than 3 times a number, would be: 
9+(3x)=-6
then you would solve
subtract 9 from 9 and 9 from -6
you get 3x=-15
divide by 3 on both sides
x=-5

your welcome!!!! :)
8 0
3 years ago
A house costs £284,009.what is 5% of this?<br> What is 75% of £80?
zepelin [54]
5.68018 million UK£60 UK£
6 0
3 years ago
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