10+5 because the perimeter is less than 5 times it’s length
Answer:
And the difference is given by:
Step-by-step explanation
We assume that th data is this one:
x: 242-255 -227-251-262-207-140
y: 91- 81 -91 - 92 - 102 - 94 - 91
Find the least-squares line appropriate for this data.
For this case we need to calculate the slope with the following formula:
Where:
So we can find the sums like this:
With these we can find the sums:
And the slope would be:
Now we can find the means for x and y like this:
And we can find the intercept using this:
So the line would be given by:
The prediction for 253 seconds is:
And the difference is given by:
The answer is <span>12,782.5 feet².</span>
The perimeter is the sum of all sides of a polygon. The perimeter (P) of the triangle is:<span>
P = a + b + c
It is given:
P = 547.2 = a + b + c
a : b : c = 42 : 45 : 27
Let's assume that sides are as the ratio:
a1 = 42, b1 = 45, c1 = 27
The perimeter will be: P1 = 42 + 45 + 27 = 114 feet
Now let's see how many times our triangle is bigger that this supposed one:
P </span>÷ P1 = 547.2 ÷ 114 = 4.8
This means that sides are 4.8 times bigger:
a = 42 · 4.8 = 201.6 feet
b = 45 <span>· 4.8 = 216 feet
c = 27 </span><span>· 4.8 = 129.6 feet
Let's just check it out: P = 201.6 + 216 + 129.6 = 547.2 feet
Now, let's calculate the area of the triangle using the Heron's formula:
A = </span>√(s(s - a)(s - b)(s - c))
s = (a + b + c)/2 = P/2 = 547.2/2 = 273.6 feet
A =√(273.6 · (273.6 - 201.6) · (273.6 - 216) · <span>(273.6 - 129.6))
= </span>√(273.6 · 72 · 57.6 · 144) = √163,369,044.5 = 12,782.5 feet²
Answer:
Anwer would be B. step 3. Taking b to the left side will make it negative which would result in 4b overall
Answer:
9 : 13
Step-by-step explanation:
Here is the complete question :
there are 13 apples in a basket 4 of these apples are green the rest of them are red
What what is the ratio of red apples to all the apples in the basket
Ratio expresses the relationship between two or more numbers. It shows the frequency of the number of times that one value is contained within other value(s).
ratio of red apples to all the apples in the basket = Number of red apples : total number of apples
Number of red apples = total number of apples - number of green apples
13 - 4 = 9
9 : 13