Whats the radical of 85 ?

Mathematics

2 answers:

Natali [406]3 years ago

8 0

The square root of 85 is 9.21954

Hope this helps :)

PIT_PIT [208]3 years ago

3 0

The square root of 85 is

Answer: 9.21954

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2+(a+b) for each expression use a property to write an equivalent expression tell wich papery you would use

Oksanka [162]

Property would be addition and the equivalent would be 2+a+b, a+b+2, a+2+b, b+a+2 and b+2+a

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3 years ago

Identify the graph of the equation... Then find q to the nearest degree.<br><br> 16x^2+2xy+y^2-16=0

musickatia [10]

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3 years ago

this is about similar triangles :)which of the following statements is true about similar triangles?the measurements of correspo

GenaCL600 [577]

Similar triangles:

Similar triangles have two important properties:

1. The corresponding sides of the triangles are proportional.

2. The corresponding angles of the triangles are congruent.

Let us analyze each of the given options.

1. The measurements of corresponding angles differ between the two triangles.

False, since the corresponding angles must be congruent.

2. Two triangles are similar if their corresponding sides are proportional.

True, since the corresponding sides are proportional in similar triangles.

3. If two triangles are similar, both their corresponding sides and angles are always congruent.

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4. Similar triangles differ in shape but are the same in size.

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1 year ago

Use the method of Gauss to find the sum.1+2+3+.....+400

nikklg [1K]

Gauss' method for addition relies on the fact that you can 'pair' certain numbers together. Look at the example:

1+2+3+4+5+6+7+8+9+10

We could manually add all these together from left to right but a clever way to think about this is if we add together the ends of the sum (10+1) we get 11. If we then move one in from the ends and add these (2+9) we also get 11. This means that 1+2+...+9+10 is the same as 11+11+...+11+11.

Because each 2 numbers adds to 11 we know the total number of 11's we have to add together is the length of the sum divided by 2. In our case 5 (10 ÷ 2). We need to add 5 lots of 11 to get our answer. This is the same as 11 × 5 which is easily seen to be 55.

(If you add the 10 numbers together on a calculator you'll see 1+2+3+4+5+6+7+8+9+10 = 55) so this method really makes it a lot quicker.

Looking at your sequence, if we pair the ends together we get 401 (400+1) and we multiply this by the length of the sequence divided by 2. In your case, 200 (400 ÷ 2).

So the sum of all the numbers from 1 to 400 must be 401 × 200 = 80,200.

Remember the steps:
1. Pair the ends together and add them
2. Times this number by the length of the sequence halved

Hope this helps.

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4 years ago

Y=-2x²-8x-5 domain and range

Jobisdone [24]

Answer:

Domain: All real numbers

Range: y≤3

Step-by-step explanation:

The given function is

$y = - 2 {x}^{2} - 8x - 5$