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Andrew [12]
3 years ago
8

1.

Mathematics
1 answer:
hoa [83]3 years ago
6 0

D. a=3, b=-1, c=-4 and for the next D. a=3, b=-1, c=-4

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WITCHER [35]

Answer:

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Step-by-step explanation:

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7 0
3 years ago
Stacy and Neil painted 280 ft of their living room wall with 4/5 gallon of paint. How many square feet can they paint with 3 gal
barxatty [35]

Step-by-step explanation:

4/5 gallons for 280 ft² (the ² is missing in the question ...).

3 gallons would be 15/5.

so, what do I need to multiply 4 with to get 15 ?

4×x = 15

x = 15/4

multiplying now also 280 ft² with this factor gives us the answer :

280 × 15/4 = 70 × 15 = 1050 ft²

they can paint 1050 ft² with 3 gallons of paint.

6 0
2 years ago
What is the exact value of cos 45° as found on the unit circle?
Ber [7]
The exact value of cos 45 as per the special triangle would be

Cos 45 = 1/✔️2

Rationalizing the denominator gives

✔️2/2 = 0.707.
4 0
3 years ago
C/3=30/5 need help now
Zigmanuir [339]
30/5 is 6, so c/3 is 6, and c is 6x3, so c is 18.
7 0
3 years ago
Read 2 more answers
Find the missing probability.<br><br> P(A)=13/20,P(A∩B)=13/25,P(B|A)=?
Tju [1.3M]

By definition of conditional probability,

P(B | A) = P(A ∩ B)/P(A) = (13/25) / (13/20) = 20/25 = 4/5

4 0
3 years ago
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