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telo118 [61]
3 years ago
14

Please stop and help me

Mathematics
1 answer:
Vladimir79 [104]3 years ago
4 0

Answer:

f(9)= 141

Step-by-step explanation:

f(x)=-x^{2}+5x+15

  • replace x's with 9
  • f(9)=-9^2+5(9)+15
  • solve
  • f(9)=141
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If human development really does proceed continuously, what value does stage theories of development have?

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3 years ago
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Alternatively, you can think about it this way. The item is 25% off. This means you'll pay 75.000% of the total cost (100% - 25% = 75.000%).

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Just like the result above, the sale price on the item is $75.00.

Hope this helps you on your assignment! :)

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Step-by-step explanation:

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I do not understand how to work out this question please help
enot [183]

a) To find the missing side length on triangle A, we can use the Pythagorean theorem.

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b) The two triangles are congruent because they have two side lengths in common. If at least two side lengths are the same on two triangles, then they are congruent. In addition, these triangles have one angle in common as well.

Hope this helps!! :)

8 0
3 years ago
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