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attashe74 [19]
3 years ago
15

HELP!!!!!!! What is 2 8/10 + (-3.5) in decimal form

Mathematics
1 answer:
GarryVolchara [31]3 years ago
7 0

Answer: -0.7

Step-by-step explanation:

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The figure below is a square. Find the length of side x in simplest radical form with a rational denominator.
Mashcka [7]

Answer:

\frac{\sqrt{10}}{2}

Step-by-step explanation:

The diagonal forms two 45-45-90 triangles, with the diagonal being the hypotenuse of both. The Pythagorean Theorem states that a^2+b^2=c^2, where c is the hypotenuse of the triangle, and a and b are the two legs of the triangle.

From the Isosceles Base Theorem, the two legs of a 45-45-90 triangle are always equal. Since we're given a diagonal of \sqrt{5}, we have:

x^2+x^2=\sqrt{5}^2,\\2x^2=5,\\x^2=\frac{5}{2},\\x=\sqrt{\frac{5}{2}}=\frac{\sqrt{5}}{\sqrt{2}}=\frac{\sqrt{5}}{\sqrt{2}}\cdot \frac{\sqrt{2}}{\sqrt{2}}=\boxed{\frac{\sqrt{10}}{2}}

7 0
3 years ago
Your mother buys a new mirror for your home. It has a radius of 32.5 centimeters
Mariana [72]
297.23 is the answer
6 0
3 years ago
Consider the information about the number of customers that select various frame colors at a frame store one day. 15 customers s
Vsevolod [243]

Answer:

Exact: 733.33333333

Rounded: 730

Step-by-step explanation:

Hope this helps! :)

5 0
2 years ago
Help please I want to make sure I get this correct
Harrizon [31]
The answer for your question is A
5 0
3 years ago
Is is right? If not, please correct me (:
Illusion [34]

Answer:

undefined

0

Step-by-step explanation:

The formula for slope is

m = (y2-y1)/ (x2-x1)

We have points

(-7,2) (-7,-7)

m = (-7-2) /(-7--7)

   = -9/(-7+7)

   = -9/0

This is undefined

We have points

(-8,-3) (6,-3)

m = (-3--3) /(6--8)

   = (-3+3/(6+8)

   = 0/14

0

6 0
3 years ago
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