-4x - 2y = - 12
4x + 8y = - 24
_____________(+)
/ +6y = - 36
y = -36/6;
y = -6;
4x - 48 = -24;
4x = 24;
x = 24/4;
x = 6.
<h3>The possible numbers of laps she will run today is greater than 9</h3>
<u>Solution:</u>
Given that,
Maya runs each lap in 5 minutes
Let "n" be the number of laps she will run today
She will run more than 45 minutes today
<u>Therefore, a inequality is framed as:</u>
Thus the possible numbers of laps she will run today is greater than 9
Answer:
Here, the given problem,
The total number of hours =
Now, the number of hours to make each invitation card =
Hence, the total number of invitations =
a. Scale the number line from 0 to 1,
In which each unit represents
By the number line,
b. By model,
Take a grid which shows 1 hour and each box of the grid represents 1/12th hour,
By the grid,
That is, the number of hours to make invitation = 9
c.
Answer:
B. (1,5) and (5.25, 3.94)
Step-by-step explanation:
The answer is where the 2 equations intersect.
We need to solve the following system of equations:
y = -x^2 + 6x
4y = 21 - x
From the second equation:
x = 21 - 4y
Plug this into the first equation:
y = -(21 - 4y)^2 + 6(21 - 4y)
y = -(441 - 168y + 16y^2)+ 126 - 24y
y = -441 + 168y - 16y^2 + 126 - 24y
16y^2 + y - 168y + 24y + 441 - 126 = 0
16y^2 - 143y + 315 = 0
y = [-(-143) +/- sqrt ((-143)^2 - 4 * 16 * 315)]/ (2*16)
y = 5, 3.938
When y = 5:
x = 21 - 4(5) = 1
When y = 3.938
x = 21 - 4(3.938) = 5.25.
Answer:
The answer is ""
Step-by-step explanation:
Eight phenotypes were present.
Df is provided also by a number of phenotypes -1 The degree of freedom
For p-value 0,9, Chi-square is 2.83;
The p-value of 0.75 is 4.5. Chi-square
Chi-sqaure value is observed at 2.965.
That means 0.90>p-value>0.75.