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MariettaO [177]
3 years ago
9

The table shows the electric current produced by a solar cell in different amounts of sunlight (light intensity). Answer the que

stions using the data. I only need help on 5 and 6

Mathematics
2 answers:
AnnZ [28]3 years ago
4 0
Answer: In the absence of light, you could predict the current to be 0. This makes sense, because if there is no light then the solar cell won't work. Also, you can see that the data is heading towards 0.

When the light intensity is 1000, you could predict the current to be at about 100. Following the pattern in the data, it seems like you divide the light intensity by 10 to get the current. You could also graph the points.
aalyn [17]3 years ago
3 0

Answer:

Step-by-step explanation:

how to solve it

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The sum of two numbers is 12. the difference of the same two numbers is -4 . find the two numbers
gtnhenbr [62]

Answer:

(4,8)

x=4

y=8

Step-by-step explanation:

x is the first number

y is the second number

x+y=12

x-y= -4

Let's add y and 4 to the second equation to get y by itself

x+4=y

We can substitute this value in for y in the first equation

x+x+4=12

2x=8

x=4

We can then use x=4 and plug that into any equation

4+y=12

y=8

The answer is (4,8)

5 0
3 years ago
The product of two number is 20 and the sum of square is 41 find the number​
Marianna [84]

Let the two number is a and b

so,

product =ab=20

sum of square=\bold{a^2+b^2=41   }

Then,

\bold{(a+b)^2=a^2+b^2+2ab  }

\bold{ (a+b)^2=41+2×40  }

\bold{ (a+b)^2=81  }

\bold{a+b=\sqrt{81}   }

\bold{a+b=9 }•••••••••(equation I)

Now,

\bold{(a-b)^2=a^2+b^2-4ab   }

\bold{ (a-b)^2=41-4×20  }

\bold{(a-b)^2=41-40   }

\bold{a-b=\sqrt{1}   }

\bold{a-b=1 }••••••••(equation II)

Now,combine the equation I and equation II

we,get

\bold{a+b+a-b=9+1   }

\bold{a+\cancel{b}+a\cancel{-b}=10   }

\bold{ 2a=10  }

\bold{a=\dfrac{10}{2}   }

\blue{\boxed{  a=5 }}

Then,

put the value of a in equation II.

we get that,

\bold{5-b=1   }

\bold{b+1=5   }

\bold{b=5-1   }

\bold{\boxed{\blue{b=4}}  }

<em><u>so</u></em><em><u>,</u></em><em><u> </u></em>

<em><u>The</u></em><em><u> </u></em><em><u>two</u></em><em><u> </u></em><em><u>number</u></em><em><u> </u></em><em><u>is</u></em><em><u> </u></em><em><u> </u></em><em><u>5</u></em><em><u> </u></em><em><u>and</u></em><em><u> </u></em><em><u>4</u></em><em><u>.</u></em>

6 0
2 years ago
Read 2 more answers
Kay is buying juice at the market. She has $9 and each bottle of juice costs $2 does she have enough money to buy 5 bottles of j
MariettaO [177]
No because if she has $9 and the orange juice costs $10 (5 bottles) she needs a dollar more so no she doesnt have enough money
7 0
3 years ago
Read 2 more answers
!!! HELP ASAP !!! 40 x 20 - 6 + 4 =
Mamont248 [21]

Answer:

798

Step-by-step explanation:

first you do 40x20=800 then 800-6=794 then 794+4=798

8 0
3 years ago
208 divi by 6.4 What is the quotient for the equation above?
andrey2020 [161]

Answer:

B

Step-by-step explanation:

208 divided by 6.4 = 32.5

8 0
2 years ago
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