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Harman [31]
3 years ago
6

Help Plis.......................

Mathematics
1 answer:
natita [175]3 years ago
3 0

Answer:

C

Step-by-step explanation:

Two negative signs make a positive number. So -(-4) makes 4. I know it sounds weird, but thats what schools teach. Hope this helps!

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Calculate the length of the hypotenuse
alexira [117]

Answer:

8.60

Step-by-step explanation:

A^2+B^2=C^2

5*5=25    7*7=49    49+25= 74

√ 74=  8.602...

8 0
3 years ago
In a class there are two girls for every three boys. The ratio 2 : 3 compares the
alekssr [168]

Answer:

a. I'm not sure if there's more to the question but I can't answer without knowing how many is the whole class

B. 12 boys

4 0
2 years ago
Please help will give Brain for it!!
Lyrx [107]
Scale factor:
10/4= 2.5
X = 5 x 2.5 = 12.5
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4 0
3 years ago
Write the function in standard form<br><br> f(x) = -4 (x - 6)^2 + 15
amid [387]

9514 1404 393

Answer:

  f(x) = -4x^2 +48x -129

Step-by-step explanation:

It usually works well to compute the square first. That is, simplify according to the order of operations.

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  f(x) = -4x^2 +48x -144 +15

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7 0
2 years ago
Read 2 more answers
Using the results from parts D through G, write an expression that represents the number of years elapsed between the disappeara
nlexa [21]

The mathematical expression to represent the number of years elapsed since the disappearance of Helike until the end of the American Civil War is:

  • T (years from Helike's disappearance to the end of the Civil War) = w + 373

To reach this conclusion we had to search for additional information and found that the year of the disappearance of the Greek city of Helike is -⅕ times the year the American Civil War ended.

  • Helike's disappearance year = (-w / 5)

According to the previous expression, the year of Helike's disappearance is:

  • Helike's disappearance year = (-1865/5) = -373

According to the previous data, it can be inferred that the expression that represents the number of years elapsed between the disappearance of the Greek city of Helike and the end of the US Civil War is:

  • T = w + 373
  • T = 1865 + 373
  • T = 2238

Note: This question is incomplete because the is some information missing. However, I can answer it based on my prior knowledge.

Learn more about Civil War in: brainly.com/question/14234520

3 0
3 years ago
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