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liberstina [14]
3 years ago
8

HELP PLEASEEEE I don’t get it

Mathematics
2 answers:
jek_recluse [69]3 years ago
7 0

10 is answer choice B

11 is answer choice A

vredina [299]3 years ago
6 0

The answer is A!!

Hope this helps!!

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What is the largest integer that is below square root of 28?
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Sqrt28 = 5.2915~
largest integer below = 5
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Nadya solves the equation 4x-4=20. Her work is shown below.
Stells [14]
Step 2 she should add 4 not subtract
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3 years ago
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Can someone help with this pls it’s due today
KiRa [710]
D, hope this is right! :)
7 0
3 years ago
Plz show work and solve quick please need help!!!!!
Simora [160]
Surface area is just the area of all these 4 triangles plus the rectangle.

First we can find the area of the rectangle.

\sf A=lw

Half of the length is 28 cm, so the full length must be 28 * 2 = 56 cm.

\sf A=(56)(27)

\sf A=1512cm^2

The base for the left and right triangles are 27. The heights would be the net length minus half the length of the rectangle:

\sf 82.8-28=54.8\? cm

Calculate the area:

\sf A=\dfrac{1}{2}bh

\sf A=\dfrac{1}{2}(27)(54.8)

\sf A=739.8\?cm^2

We have two of these triangles.

\sf 739.8\times 2=1479.6\? cm^2

Now do the other two pair of triangles. The bases for them are 28 + 28 = 56 cm. The heights would be the net width minus the width of the rectangle:

\sf 81.2-27=54.2\?cm

Now find the area:

\sf A=\dfrac{1}{2}bh

\sf A=\dfrac{1}{2}(56)(54.2)

\sf A=1517.6\? cm^2

We have two of these triangles.

\sf 1517.6\times 2=3035.2\?cm^2

Add all the areas together:

\sf 1512+1479.6+3035.2=\boxed{\sf 6026.80\? cm^2}
7 0
3 years ago
Susan is twice as old as lana. The sum of their ages 4 years ago was 37. Find how old they are now with solution need asap
goldfiish [28.3K]

Answer:

Lana is 15 and Susan is 30

Step-by-step explanation:

let Lana's age=x

Susan's age=2x

Their ages four years ago:

Lana=x-4

Susan=2x-4

Now their ages 4years ago was 37 so:

x-4+2x-4=37

3x-8=37

3x=37+8

3x=45

x=15

Since Lana's age is x,she is 15years

Since Susan's age is 2x,she is 30years

5 0
2 years ago
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