Step-by-step explanation:
7r+18=-2(6-6r)
7r+18= -12+12r
7r = -12-18+12r
-30+12r = 7r
-30 = 7r-12r
-5r = -30
r = 30/5
<em><u>r = 6</u></em>
<u>hope</u><u> it</u><u> helps</u><u> you</u><u> ❤️</u>
Answer:
Julie can buy 4 plants
Step-by-step explanation:
A plant costs £6.80 and Julie has £30.
In order to find out how many plants she can buy with £30, we need to see how much times £6.80 can go into £30. In other words, we need to divide £30 by £6.80 so we get the number times it can go into £30. That will be the number of plants.
£30 ÷ £6.80 = 4.41176470588
Julie can't get 0.41176470588 of a plant so we have to round it to 4. She can buy 4 plants.
She has a bit of money left over (you can tell by the decimal number), but that isn't enough to buy another plant. So she buys 4 and has £2.80 left.
£6.80 x 4 = £27.20
You can find the solution for x by subtracting 5 from 12 which is -17. 5 added to 17 would be -12 so x = -17.
The geometric mean is defined as the nth root of the product of n numbers
1. 4 and 9
Geometric mean = 
2. 5 and 8
Geometric mean = 
3. 8 and 32
Geometric mean = 
4. 64 and 36
Geometric mean = 
Hope that helped!
Answer:
1. The determinant is 8.
2. The determinant does not depend on the variables in the matrix.
3. When there are zeroes below the main diagonal, the determinant is the product of the diagonal.
Step-by-step explanation:
"Analyzing Determinants" on Edge2020
(If this is what i think it is)
