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tino4ka555 [31]
3 years ago
13

-3 root 6 * root 7 * -2 root 5 * root 3

Mathematics
1 answer:
Rudik [331]3 years ago
8 0

Answer:

not sure!!

Step-by-step explanation:

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Will a 9m long planks fit into a square room of side 7m? please I really needed help with this one
Darya [45]
No because if it is a square all the sides are 7m long so a 9m plank will not fit. Hope this helps.
5 0
3 years ago
What is the value of q?
malfutka [58]
Triangles QST and RST are similar.  Therefore, the following is true:

 q       s
--- = ----   This results in 10q=rs.
 r      10

Also, since RST is a right triangle, 4^2 + s^2 = q^2.
Since QST is also a right triangle, s^2 + 10^2 = r^2.  
            4      s
Also:  ---- = -----    which leads to s^2 = 40
            s      10

Because of this, 4^2 + s^2 = q^2 becomes 16 + 40 = 56 = q^2

Then q = sqrt(56) = sqrt(4)*sqrt(14) = 2*sqrt(14) (answer)


5 0
3 years ago
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What is the answer to 1 4/5 x 2 1/4
hodyreva [135]

Answer:

3 6/25

Step-by-step explanation:

Make the mixed fractions improper fractions and multiply them together. After that make the multiplied improper fraction a mixed fraction (answer in drawings)

7 0
3 years ago
Please answer the picture
dimaraw [331]
The area is equal to 230 CM.
area for rectangle :
area = width times length
area = 7 x 20 = 140CM
area for triangle:
area = 1/2 times base times height
area = 1/2 x 20 x 9 = 90CM

ADD:
140+90 = 230 CM
3 0
2 years ago
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Answer:

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Step-by-step explanation:

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