Answer:
f(-2)=17
Step-by-step explanation:
substitute x for -2
f(x)=3x^2-2x+1
f(-2)=3*(-2)^2-2*-2+1
f(-2)=3*4-2*-2+1
f(-2)=12+4+1
f(-2)=17
Answer:
12 inches
Step-by-step explanation:
5 + 5 = 10
34 - 10 = 24
24 ÷ 2 = 12
Therefore, the answer is 12 inches.
Answer:
<u>145 people were surveyed</u>
Step-by-step explanation:
1. Let's review the information given to answer the question correctly:
Percentage that indicated they preferred walking to running = 90%
2. If 130 people preferred running to walking, how many people where surveyed?
For answering this question, we will use the Rule of Three simple, this way:
x = Number of people surveyed
90 * x = 130 * 100
90x = 13,000
x = 13,000/90
x = 144.44
But we need a whole number for an accurate answer, so we round the value of x to the next whole number.
<u>145 people were surveyed</u>
39,751 divided by 313 equals to 127.
Hope this helps!
1
3.50
3.50
+3.50
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10 .50