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Mnenie [13.5K]
3 years ago
12

Can someone help me pls

Mathematics
2 answers:
FrozenT [24]3 years ago
8 0
There are 4 lateral faces that are triangles.  Each triangle is: A = \frac{b  x  h}{2}
A = \frac{16  x  22}{2}
   = 176

There is one base that is a square. A = L x W
A = 16 x 16
   =  256

Surface area = 256 + 4(176)
                     =  256 + 704
                     = 960

Answer: B

Ugo [173]3 years ago
4 0
Same help me you just broke my brain
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. A pack of baseball cards has 12 trading cards and 2 stickers. In a
erik [133]
Answer:
432 cards and 72 stickers
Explanation:
1 pack=12 cards + 2 stickers
So if we want 36 packs..
36 packs=433 cards + 72 stickers
We times everything by 36!
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3 years ago
Select the locations on the number line to plot the points 9/2 and −7/2 .
Alex_Xolod [135]

9/2 would be on the right -7/2 will be on the left hope i helped

3 0
3 years ago
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3 years ago
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A sample of 16 items from population 1 has a sample variance 5.8 and a sample of 21 items from population 2 has a sample varianc
Nady [450]

Answer:

Reject the null hypothesis.

Step-by-step explanation:

n1 = 16

n2 = 21

S.V1 = 5.8

S.V2 = 2.4

\alpha = 0.05

H_{0} = Population Variance 1 ≤  Population Variance 2

H_{a} = Population Variance 1 >  Population Variance 2

Test statistic value = 5.8 / 2.4 = 2.417

Degrees of freedom is n - 1

15 and 20

Critical value is F_{0.05} = 2.2

2.417 > 2.2

we reject the null hypothesis as the critical value is greater than the test statistic.

3 0
3 years ago
Solve each word problem using a system of equations. Use substitution or elimination.
nasty-shy [4]

Answer:

Step-by-step explanation:

x + 3y = 24.....multiply by -1

5x + 3y = 36

------------------

-x - 3y = -24 (result of multiplying by -1)

5x + 3y = 36

------------------add

4x = 12

x = 12/4

x = 3 <=======

x + 3y = 24

3 + 3y = 24

3y = 24 - 3

3y = 21

y = 21/3

y = 7 <========

4 0
3 years ago
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