Answer:
D. 11.8 cm
Step-by-step explanation:
This triangle is a 30°-60°-90° triangle. There is a shortcut to find the lengths of the sides of a 30°-60°-90° triangle. The longest side is the hypotenuse. The longest side is double the shortest side or, the shortest side is half the longest side. Here the longest side is 5, so the short leg (shortest side) is 2.5
The other shortcut is that the longer leg is the
short leg×sqroot3
Here, the short leg is 2.5, so the long leg is 2.5×sqroot3
Perimeter is all the sides added together.
5 + 2.5+ 2.5×sqrt3
Do the times first.
5 + 2.5 + 4.3
= 11.8
Answer:
-(-5/-20)
Step-by-step explanation:
When you simplify all the multiply choice answer then one will be the exact same the question.
The regression equation is
, and it will take 31 weeks to have $50.00
<u>(a) The linear regression equation</u>
To do this, we make use of a graphing calculator;
From the graphing calculator, we have the following calculation summary:
- The sum of X = 45
- The sum of Y = 83
- Mean X = 4.5
- Mean Y = 8.3
- Sum of squares (SSX) = 82.5
- Sum of products (SP) = 128.5
The regression equation is then represented as:

Where:
and 
So, we have:

Approximate


Approximate
This means that, the regression equation is 
<u>(b) Predict the time to have $50.00</u>
This means that:

So, we have:

Subtract 1.29 from both sides

Divide both sides by 1.56

Rewrite as:

Approximate

Hence, it will take 31 weeks to have $50.00
Read more about linear regression models at:
brainly.com/question/14585820
Simplify Expression: -363836.36