Answer:
1. x = ±9
2.
3. 12 and -12.
4. Antoine is incorrect. There exists two solutions x=5 and x= -5.
Step-by-step explanation:
We have,
Question 1. i.e. i.e. x = ±9.
Question 2. i.e. i.e. i.e.
Question 3. [tex]f(x)=x^{2}-144[tex]
For the roots, we take, [tex]x^{2}-144=0[tex] i.e. [tex]x^{2}=144[tex] i.e. x = ±12.
So, the options are 12 and -12.
Question 4. We have [tex]f(x)=x^{2}+25[tex]
For the roots, we take, [tex]x^{2}+25=0[tex] i.e. [tex]x^{2}=25[tex] i.e. x = ±5.
So, Antoine is incorrect. There exists two solutions x=5 and x= -5.
When add expressions for example -3+-2it would equal positive 5
Answer:
* means to multiply so 6*6 is 36
Answer:
4.5 units
Step-by-step explanation:
PQ transferred to WX, and QR to XY.
PQ = 4, WX = 6, so the scaling factor x applies so that we create 6 or of 4 :
4 × x = 6
x = 6/4 = 3/2
the save scaling factor applies now to all other sides too due to the fact that the same transformation was done to the whole shape.
=> QR × 3/2 = XY.
3 × 3/2 = 9/2 = 4.5 = XY
Answer:
The free show shooters are likely to be successful after ten attempts
Step-by-step explanation:
Being successful 85% of the time means they have a probability of 85/100 = 0.85
This is for the free throw shooters
for the hitters, there is an average of 0.42
Looking at the two, 0.85 is a better probability compared to 0.42
This is because it is closer to 1
What this mean is that after 10 throws, it is possible that the free throw shooters are likely to be successful since they have the better probability