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alex41 [277]
3 years ago
9

Just want to make sure that I did my maths right. anyone helps. thanks

Mathematics
2 answers:
ahrayia [7]3 years ago
5 0
Yes you got them all correct at least I think.
Romashka [77]3 years ago
3 0
Yes you didn't get any incorrect, congratulations
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earnstyle [38]

Answer:

3.55

Step-by-step explanation:

7 0
3 years ago
It took 5 hours to mow 4 lawns. At that rate, how long would it take to mow 7 lawns?
Elanso [62]
1.25 hours for each lawn. 1.25 x 7 = 8.75.
8 0
3 years ago
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Orlov [11]

Answer:

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Step-by-step explanation:

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5 0
2 years ago
Parabolas y=−2x^2 and y=2x^2 +k intersect at points A and B that are in the third and the fourth quadrants respectively. Find k
OverLord2011 [107]

Answer:

-25  

Step-by-step explanation:

(1)   y = -2x²

(2) y =   2x² + k     Subtract (1) from (2)

    0 =  4x² + k      Subtract 4x² from each side

    k = -4x²

The parabolas are <em>symmetrical about the y-axis.</em>

Segment AB = 5, so x = +2.5 and x = +2.5.

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8 0
3 years ago
Given kite LNOM, what are the lengths of MX and XN ?
nasty-shy [4]

Answer:

Step-by-step explanation:

MX = XN

5r² + 2r + 52 = 4r² + 12r + 27

5r² - 4r² + 2r - 12r + 52 - 27 = 0

r² - 10r + 25 = 0

(r - 5)² = 0

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4•5² + 12•5 + 27

4•25 + 60 + 27

100 + 60 + 27

187

The Second one

I hope I helped you.

8 0
3 years ago
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