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DochEvi [55]
3 years ago
11

LONG WORD PROBLEM I KNOW! PLEASE ILL GIVE THANKS BRAINLIEST AND POINTS FOR THIS ANSWER! PLEASE!

Mathematics
1 answer:
11Alexandr11 [23.1K]3 years ago
5 0
Answer:
5X + 8Y >= 300; intersection at (-20, 50)
Step-by-step explanation:
let t = work hours
0 < t < 30
X = time lawn mowing
Y = time babysitting.
X + Y < 30
5X + 8Y >= 300
We could solve...
X < 30 - Y
5(30 - Y) + 8Y >=300
150 - 5Y + 8Y >= 300
3Y >=150
Y >=50
then X < -20
intersection at (-20, 50)
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A vaccine has 90% probability of being effective in preventing a certain disease. the probability of getting the disease if the
IgorLugansk [536]
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4 0
3 years ago
The length of each side of a square is
shepuryov [24]

Answer:

x=3

Step-by-step explanation:

P= 4

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7 0
3 years ago
Find all solutions of the equation in the interval [0, 2π).
skelet666 [1.2K]

Answer:

x=0

Step-by-step explanation:

4 \cos(x)  = -  \sin {}^{2} (x)  + 1

4 \cos(x)  = 1 -  \sin {}^{2} (x)

4 \cos(x)  =  \cos {}^{2} (x)

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\cos(x) (4 -  \cos(x) ) = 0

\cos(x)  = 0

x = 0

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\cos(x)  = 4

There is no solution here because cosine is undefined it the range is not between -1 and 1 so the only answer is 0.

6 0
1 year ago
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