Answer:
first one with -1...21
Step-by-step explanation:
only one that follows quadratic formula format
Answer:
B 15
Step-by-step explanation:
10 dollar + 2 hours of work 15 x 2
Answer:
For purple;
P(p) = 337/848 = 0.40
For white;
P(w) = 511/848 = 0.60
Step-by-step explanation:
Given;
Number of plants with purple flowers P = 337
Number of plants with white flowers W = 511
Total T = 337 + 511 = 848
For purple;
the empirical Probability that a plant had purple flowers P(p) is
P(p) = Number of plants with purple flowers/total number of plants
P(p) = P/T
Substituting the values, we have;
P(p) = 337/848 = 0.40
For white;
the empirical Probability that a plant had white flowers P(w) is
P(w) = Number of plants with white flowers/total number of plants
P(w) = W/T
Substituting the values, we have;
P(w) = 511/848 = 0.60
It'll be 7 because 3/4 is greater than 1/2 so you round it up.
Answer: ![EF=15cm](https://tex.z-dn.net/?f=EF%3D15cm)
Step-by-step explanation:
You know that the triangle ABC and the triangle DEF are similar.
Therefore, if the lenght of AC is 12 centimeters and the lenght of DF is 10 centimeters, then you can find the ratio as following:
![ratio=\frac{DF}{AC}\\\\ratio=\frac{10cm}{12cm}\\\\ratio=0.8333](https://tex.z-dn.net/?f=ratio%3D%5Cfrac%7BDF%7D%7BAC%7D%5C%5C%5C%5Cratio%3D%5Cfrac%7B10cm%7D%7B12cm%7D%5C%5C%5C%5Cratio%3D0.8333)
Then, the calculte the length of EF, you must multiply the lenght BC of the triangle ABC by the ratio obtained above.
Therefore, the lenght EF is the following:
![EF=0.8333(18cm)\\EF=15cm](https://tex.z-dn.net/?f=EF%3D0.8333%2818cm%29%5C%5CEF%3D15cm)