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IRINA_888 [86]
4 years ago
5

URGENT!!!!!!! Need help now

Mathematics
1 answer:
bulgar [2K]4 years ago
8 0

Answer: 9 m + 7 n - 6 mn + 4 m

Step-by-step explanation:

m + 3 n + 6 mn - 4 .... for this expression , it is already in its simplified form as we can not add any term together because they are not have the same variables.

9 m + 7 n - 6 mn + 4 ..... this also is already simplified

7 m - 9 n - 6 mn + 4 ..... the same thing with this

9 m + 7 n - 6 mn + 4 m .... this particular can still be further simplified because we have 9m and 4m having the same variable and we can therefore add them together , the simplified form of the expression will be

13m + 7n - 6mn

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Find the perimeter of a rectangle whose length is 15 cm and length of one diagonal is 17cm
Ulleksa [173]

Answer:

<h2>46 cm</h2>

Step-by-step explanation:

first ,we use the Pythagorean theorem to determine the width:

width = √(17^2-15^2) = 8

then

perimeter = 2(width+lengt) = 2(8 + 15) = 2×23 = 46

6 0
3 years ago
Please help me understand
puteri [66]

9514 1404 393

Answer:

  D.  86°

Step-by-step explanation:

Points D and F divide the circle into two arcs. The long arc is labeled 274°, and the short arc is the one you're asked to find. You know the total of these two arcs is the full circle, 360°.

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  DF = 360° -274°

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There are other relationships you can use to find arc DF. One of the simpler ones is ...

  DF and the external angle at E are supplementary:

  DF = 180° -94° = 86°

5 0
3 years ago
Please help I'll give brainliest
devlian [24]

Answer:

m∠1 + m∠3

Step-by-step explanation:

Please please mark me brainliest and have a great day!

6 0
3 years ago
Is the sum even or odd? 6+7
valentina_108 [34]
Odd.................................

4 0
3 years ago
4. Write the equation in standard form: y=3/4x – 6
wariber [46]
Y=3x/4-6

doing this is thinking of it in a matter of geometric figure and how you would plot it on a graph and this is the only way it would look write.
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