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ra1l [238]
4 years ago
15

Can you please help me with this please.... I’ve been posting these questions over and over and nothing...

Mathematics
1 answer:
BabaBlast [244]4 years ago
8 0

Answer:

Step-by-step explanation:

Snorkel, mask, and flippers Slope: 2 (so in the equation, it would look like 2x).

Snorkel, mask, and flippers Y-intercept: 10 (12 - 2 = 10, which is 0 hours, possibly the initial amount)

Snorkel, mask, and flippers Slope intercept form: y = 2x + 10

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1. If a - b = 4 and a + b = 12, what is the<br> value of a?
Nezavi [6.7K]

I think this is what you are looking for:

=−12

a

b

=

−

12

+=4

a

+

b

=

4

(+)2=42

(

a

+

b

)

2

=

4

2

2+2+2=16

a

2

+

b

2

+

2

a

b

=

16

∴2+2=16+2×12=40

∴

a

2

+

b

2

=

16

+

2

×

12

=

40

Now, (−)2=2+2−2=40+2×12=64

(

a

−

b

)

2

=

a

2

+

b

2

−

2

a

b

=

40

+

2

×

12

=

64

∴(−)=64‾‾‾√=±8

∴

(

a

−

b

)

=

64

=

±

8

So, 2−2=(+)(−)

a

2

−

b

2

=

(

a

+

b

)

(

a

−

b

)

2−2=(4)(±8)=±32

a

2

−

b

2

=

(

4

)

(

±

8

)

=

±

32

Hope that helps and sorry if it is confusing!

4 0
3 years ago
Read 2 more answers
What is 2 to the 0 power
Ostrovityanka [42]

Pretty sure it's 0, if you mean 2 to the power of 0
7 0
3 years ago
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The cost of coffee is determined by the type of coffee beans that are mixed together. The cost of a local mix of Arabica and Rob
guapka [62]
700a+1200r=1000000       (then plug in the a)
700(1000) +1200r=1000000        (simplify)
700000+1200r=1000000        (subtract 700000 from both sides)
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r=250
250 pounds
5 0
4 years ago
Simplify (6²)4. <br>how to get the answer​
Anna71 [15]

Answer:

144

Step-by-step explanation:

6^2 = 6x6 = 36

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7 0
3 years ago
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Write the ratio 6.5:3.25 in the form n:1
Ket [755]

Answer:

2:1

Step-by-step explanation:

8 0
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