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Luba_88 [7]
2 years ago
5

Can someone help me with this problem? thank you!

Mathematics
2 answers:
Vladimir79 [104]2 years ago
7 0
The answer is 410

I hope it helps.
nikklg [1K]2 years ago
7 0

Answer:

242

Step-by-step explanation:

10x3=30

30x2=60

60+42+140=242

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A bulb after certain testing had a life of 25 months. The standard deviation based on this sample of size one is
lapo4ka [179]

Answer:

<h2>25 months</h2>

Step-by-step explanation:

Using the formula for calculating the standard error of the mean to get the standard deviation. The standard error of the mean is expressed as;

SE = S/√n where;

S is the standard deviation

n is the sample size

Given SE = 25 months and n = 1, on substituting this parameters into the formula, we will have;

25 = S/√1

25 = S/1

cross multiply

S = 25*1

S = 25 months

<em>Hence the standard deviation based on the sample is 25 months</em>

8 0
3 years ago
Using the example in #8, find the value of x
RUDIKE [14]

Answer:

SolutioN :

  • Set up an equation & solve for x :

\star \tt \: 15x - 7 - 3x + 151 = 180 [ Sum of co-interior angles ]

\longrightarrow \tt \: 12x + 144 = 180

\longrightarrow \tt \: 12x = 36

\longrightarrow \tt \: x =  \frac{36}{12}

\longrightarrow \tt \: x =  \boxed{ \tt{3}}

  • The value of x is 3 .

---------- HappY LearninG <3 ---------

7 0
2 years ago
vimesha drove 232 miles in 4 hours. at this rate, how far could she drive in 7 hours? what is her rate of speed in miles per hou
IrinaVladis [17]

Answer:  distance = 406 miles

speed = 58 miles/hr

Step-by-step explanation:

4 hours - 232 miles

1 hr - 232/4

7 hours - 232/ 4 x 7 = 406 miles

Therefore , her distance is 406 miles for 7 hours.

Speed = distance / time

speed = 406/7 = 58 miles/hr

8 0
3 years ago
The distance between bases on a baseball field is 27.43 meters.
Mkey [24]
27.43 * 4.5 = 123.435

Joe jogged 123.435 meters
8 0
3 years ago
A teacher has threee pieces of wood that measure 2 ft , 3 ft, and 6 ft, respectively. The teacher asks
raketka [301]
Yo the anwser is uploaded on
8 0
3 years ago
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