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forsale [732]
3 years ago
14

Only need the answers for the 2 boxes :)​

Mathematics
1 answer:
DanielleElmas [232]3 years ago
6 0
Here it is.
Hope it helps

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Plzzzzzzz help me 
Andru [333]
When x varies inversely with y then you'll have
xα1/y
x=k/y where k is the proportionality constant
when x=8. y=10. k=?
8=k/10
make k the subject of the formula
k=10×8
k=80.

When x=6. y=?.k=80
6=80/y
Make y the subject of the formula
y=80/6
y=40/3

8 0
4 years ago
What is the value of x, when x2 + 5 = 21?
djverab [1.8K]

Hey there!

  • \bold{x^2+5=21}
  • <em>Firstly, subtract by the number \bold{5}  on each of your sides</em>
  • \bold{x^2+5-5=21-5}
  • \bold{Cancel:5-5} because it gives us the result of \bold{1}
  • \bold{Keep:21-5}  because it equals: \bold{16}
  • \bold{x^2=16}
  • <em>Nextly, we have to take our square root </em>
  • \bold{x=}±\bold{\sqrt{16}}
  • <em>Solve the square root and you have found your answer</em>
  • <em>\boxed{\boxed{\bold{Answer:x=4[or]x=-4}}} \bold{\checkmark}</em>

Good luck on your assignment and enjoy your day!

~\bold{LoveYourselfFirst:)}

4 0
3 years ago
Please help me with 1,2,3,4,5,6,7,8,9 tell me how u get it and the answer please I really need help
NNADVOKAT [17]

Answer:

1) x = 15

Step-by-step explanation:

We use the Pythagorean thm for these questions. Where a and b are the legs (So order doesn't matter), and where c is the hypotenuse

1)

a² + b² = c²

9² + 12² = x²

81 + 144 = x²

x² = 225

You square root each side so you can get rid of the exponent on x.

\sqrt{x^2} =\sqrt{225}

x = 15

8 0
3 years ago
Please help quick!!
Yanka [14]
An inverse statement is negating both statements meaning if not p, then not q.
So transforming this to an inverse statement would be:
<span>If two out of five people don’t use the subway every day, then the probability of a person using the subway isn’t 0.4. So the answer B.</span>
7 0
3 years ago
Which property explains how we get the equation shown in step 2? Given: -5(x -4) - 20 = -15 Step 1: -5x + 20 -20 = -15 (Distribu
Talja [164]
Step 2: <span>Inverse Property of Addition
</span><span>any number added to its opposite will equal zero
</span>in this case + 20 - 20 = 0

answer
Inverse Property of Addition
8 0
3 years ago
Read 2 more answers
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