Answer:
There are 5 cats and 6 children
Step-by-step explanation:
Let x = number of cats
Let y= number of children
Counting heads gives 11
X+Y = 11 .....eq1
Counting feet gives 32
Cats has 4legs,child has 2 legs
4X + 2Y=32 ....eq2
X = 11 - Y
Put in eq2
4(11-Y) + 2Y = 32
44 - 4Y + 2Y=32
12=2Y
Y=12/2=6
Y=6= Children
Put Y=6 in eq2
X + 6=11
X=11-6=5
X= 5 = cats
Let the variable of the equation be x.
Solution of the equation is given to us, hence,
x = -3 and x = 9
x + 3 = 0 and x - 9 = 0
Multiplying,
(x + 3)(x - 9) = x² - 9x + 3x - 27 = x² - 6x - 27
Hence, the linear equation with solution -3 and 9 is x² - 6x - 27.
This would be false because the difference in the highest and lowest numbers are 4.
Answer:
Concept: Evaluating Functions
- h(5) is equivalently h(t)
- Hence 2(5)^2+9
- So the answer is 59
Not completely sure how to answer your question but all 20 questions where worth 5 points each which she would have gotten a 100 if she got all right but she got 15 which her score would be 75. I think in a ratio of correct to incorrect would be 75:100 , I'm not sure completely.
