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klasskru [66]
3 years ago
6

What is

4\frac{1}{2} X3\frac{3}{4}" alt="4\frac{1}{2} X3\frac{3}{4}" align="absmiddle" class="latex-formula">
Mathematics
1 answer:
Anestetic [448]3 years ago
5 0
Answer: 135/8

4-1/2*3-3/4=9/2*15/4

9/2*15/4=18/4*15/4=15*18/4*4

15*18/4*4=270/16=135/8
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The product of two consecutive even positive integers is 674 more than the sum of the two integers. Find the integers.
IrinaVladis [17]
2n(2n+2)=2n+2n+2+674\\
4n^2+4n=4n+676\\
4n^2=676\\
n^2=169\\
n=-13 \vee n=13
-13\not\ \textgreater \ 0

n=13\\
2n=26\\
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It's 26 and 28.
7 0
3 years ago
Ben made a model (shown below) of the square pyramid he plans to build when he grows up.
elena-s [515]

Answer:

336 m^2

Step-by-step explanation:

The surface area of a square pyramid is the sum of the area of the squared base + 4 times the area of each triangular face, therefore:

A=A_b + 4A_t

where:

A_b=L^2 is the area of the base, where

L is the length of the base

A_t=\frac{1}{2}Lh is the area of each triangular face, where

h is the height of the face

Substituting,

A=L^2+2Lh

For the model in this problem,

L = 12

h = 8

Therefore, the surface area here is:

A=12^2 +2(12)(8)=336

4 0
3 years ago
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Find the product:<br> (-9)(-4)
nadya68 [22]

Answer:

36

Step-by-step explanation:

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3 0
3 years ago
Please answer quickly and show work. (If you show work you get brainliest)
vfiekz [6]
Tip: decimal to percentage is easy. 0.78 would be 78%. percentage would be vice versa 39% is 0.39. decimal or percentage to fraction is easy aswell, make the number out of 100, meaning 39% would be 39/100
8 0
3 years ago
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Answer:

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7 0
3 years ago
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