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poizon [28]
3 years ago
6

Help pls ill mark brainlist and follow u

Mathematics
2 answers:
KATRIN_1 [288]3 years ago
6 0

Answer:

area of the shaded figure

\frac{1}{2}  \times 3 \times 10 \\ 15 \:  {cm}^{2}

Agata [3.3K]3 years ago
4 0

Answer:

if you have to find area

Step-by-step explanation:

area=1/2*3*10

=15cm²

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A cookie factory monitored the number of broken cookies per pack yesterday.
trapecia [35]

Answer:

Confidence Interval - 2.290 < S < 2.965

Step-by-step explanation:

Complete question

A chocolate chip cookie manufacturing company recorded the number of chocolate chips in a sample of 50 cookies. The mean is 23.33 and the standard deviation is 2.6. Construct a 80% confidence interval estimate of the standard deviation of the numbers of chocolate chips in all such cookies.

Solution

Given  

n=50

x=23.33

s=2.6

Alpha = 1-0.80 = 0.20  

X^2(a/2,n-1) = X^2(0.10, 49) = 63.17

sqrt(63.17) = 7.948

X^2(1 - a/2,n-1) = X^2(0.90, 49) = 37.69

sqrt(37.69) = 6.139

s*sqrt(n-1) = 18.2

s\sqrt{\frac{n-1}{X^2 _{(n-1), \frac{\alpha }{2} } } \leq \sigma \leq s\sqrt{\frac{n-1}{X^2 _{(n-1), 1-\frac{\alpha }{2} } }

confidence interval:

(18.2/7.948) < S < (18.2/6.139)

2.290 < S < 2.965

8 0
3 years ago
Annies car used 100 cups of gasoline during a drive he paid $3.12 per gallon for gas. how much did the gas cost ?
VladimirAG [237]
The gas would have cost $19.50. Hope this helps :)
5 0
3 years ago
Read 2 more answers
BE is a midsegment, Find the value of x. Please
Scrat [10]

Answer:

x10

Step-by-step explanation:

BE=1/2 * CD

x=CB/2

x=20/2

x=10

8 0
3 years ago
The science club sponser is ordering caps and shirts for the boys and girls in the science club. There are 45 science club membe
mafiozo [28]

Answer:

9 packs of shirts and 15 packs of caps

8 0
3 years ago
Mr Kendrick is trying to organize his year 7 class into rows for their class photograph. If Mr Kendrick wishes to organize the 2
inysia [295]
Just list the factors of 24. Those are the possible numbers of students that can be in each row.

1,2,3,4,6,8,12,24 are the possible row sizes.
5 0
3 years ago
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