Answer:
3 weeks
Step-by-step explanation:
If St. Augustine grass can grow at a rate of 4 over 7 centimeters per week, then for 12 over 7 centimeters it will take :
12 / 7 centimeters ÷ 4 / 7 centimeters
= 3 weeks
Explanation in words :
If the grass can grow at a rate of 4/7 centimeters per week, and it grows 12/7 centimeters but we don't know how many weeks it took, we just have to divide <em>12</em><em>/</em><em>7</em><em> </em><em>from</em><em> </em><em>4</em><em>/</em><em>7</em><em> </em>to get a result of <em>3.</em><em>.</em><em>.</em>
Ok so mean means average so exmple
mean of 1,2,3+5 would be (1+2+3+5)/4
(sum of terms)/(number of terms)=mean so
number of terms=5 since 5 oranges
sum=(46+39+53+61+49)
so mean=(46+39+53+61+49)/5=248/5=49.6
so the answer would be 49.6 (estimateed to be 50)
Y= x²- 6x +7
Vertex form is y= a(x-h)² +k
The vertex form of this equation would be y= (x-3)²- 2 because if we transform to the standard form it would be equal to y= x²-6x+7 so we just have to complete the perfect square (which means to complete, following the rules, with the numbers that will make this equation right in the standard form).
How our x² is equal to 1 on our standard form (like it is not 2x², it is just x²), our ''a'' on the vertex form is 1 so we simply don't have to write the 1 in front of it so it stays y= 1(x-3)² -2 or y=(x-3)²-2. Look how it works: (x-3)² we use the rule of a²+2ab+c² which is the square of the first x² plus two times the first term times the second -6x plus the square of the last term (-3)² = 9 so we have x²-6x+9 - 2 that gives us the standard form x²-6x+7. So, that's true that the vertex form is y=(x-3)²-2
Answer:
The 11 symmetries of a regular octagon. Lines of reflections are blue through vertices, purple through edges, and gyration orders are given in the center.
...
Symmetry of octagon.
r16
d8 g8 p8
d2 g2 p2
a1
Step-by-step explanation:
Hope it helps! Correct me if I am wrong :>
Im sure about my answer
Can you please mark me as brainlest?
Answer: x = 3
Step-by-step explanation
This is a simultaneous equation. So to find x , we solve to ascertained the coordinate or point of intersection of the too lines.
y = 4x + 2, and 6x - y = 4
To solve , we need to rearrange first
y = 4x + 2 will be
4x - y = -2 -------------------------1
Equation 2 is in order
6x - y = 4 -------------------------- 2
Now solve the two equation for x by using any methods you are familiar with.
4x - y = -2
6x - y = 4, now subtract equation 2 from 1 in order to eliminate y,
we now have
-2x = -6, now divide through by 2
x = 3.
Hence y could be find by substitution for x in any of the equation above and now check.
4x - y = -2
4(3) - y = -2
12 - y = = -2
y = 12 + 2
y = 14.
Now let check
6x - y = 4
6(3) - 14
18 - 14
= 4.
Therefore, the value of x is 3