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andreev551 [17]
3 years ago
9

In triangle ABC , M and N are midpoints of sides. If MN = 2x + 5 and BC = x2 − 2, find the possible lengths for MN.

Mathematics
1 answer:
Karo-lina-s [1.5K]3 years ago
3 0

Answer:

A.17

Step-by-step explanation:

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HELP meeeeee please
Rufina [12.5K]

Answer: a = 23, b = 21, c = 136

Step-by-step explanation:

8 0
3 years ago
A 15 foot flagpole casts an 11 foot shadow. At the exact same time a 28 foot tree casts a shadow. Which proportion would correct
marishachu [46]
The longer an object, the longer the shadow they cast at a given time of the day and vice versa. This is called direct proportionality. At the same time,

If 15 foot flagpole ---- casts 11 foot shandow
    28 foot tree -------- casts ?? foot shadow

The proportion would therefore be:

Length of shadow cast by tree = (28/15)*11 = 20.533 foot.
8 0
3 years ago
There were several sunny days this year before my birthday. Since my birthday, there have been 171717 more sunny days. My birthd
Lesechka [4]

Answer:

66 sunny days before birthday

Step-by-step explanation:

Total sunny days after birthday = 17

Total sunny days in year = 83

Birthday was not sunny

Total sunny days before birthday = 83 -17

                                                       = 66 sunny days

Read more on Brainly.in - https://brainly.in/question/6937259#readmore

4 0
3 years ago
(3m^3- 1/2 y) (3m^w - 1/2y)
Brilliant_brown [7]
We use FOIL method to multiply this out. First termsOuter termsInner termsLast terms  Product = (3m3 * 3m3) + (3m3 * -1/2y) + (-1/2y * 3m3) + (-1/2y * -1/2y) Product = 9m6 - (3/2)m3y - (3/2)m3y + (1/4)y2 <span>Product = 9m6 - 3m3y + (1/4)y<span>2</span></span>
6 0
3 years ago
Is 5:20 and 15:60 equivalent
kati45 [8]

Answer:

Yes! When simplifying 15:60 by dividing each side by 3, you get 5:20, which is the same as 5:20.

Step-by-step explanation:

Hope this helps <3

5 0
3 years ago
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