Answer:
f(-5)= 28
Step-by-step explanation:
The function is:
f(x)= x^2-2x-7
To find the answer put the value of -5 for all x's.
f(x)= x^2-2x-7
f(-5)=(-5)^2 - 2(-5)-7
f(-5)=25+10-7
f(-5)=35-7
f(-5)= 28 ...
Answer:
Step-by-step explanation:
The slope of the graph at x=0 is related to the value of b. It is also proportional to the value of <em>a</em>, which is the same for all but curve B. The red curve R has the largest slope at x=0, (much larger than 3/4 the slope of curve B), so curve R has the greatest value of <em>b</em>.
Similarly, the smallest value of <em>b</em> will correspond to the curve with the smallest (most negative) slope. That would be curve K. Curve K has the smallest value of <em>b</em>.
Answer:
1/9 of 11
Step-by-step explanation:
Firstly find sp and then calculate
Set an equation:
4/5=x-3/x+1
cross multiply
5x-15=4x+4
x=19
Width: 16 cm
Length: 20 cm
Find the perimeter and the area:
Perimeter: 16+16+20+20=72
Area: 20•16=320
Ratio: 320:72
Simplify the ratio:
40:9
Answer: The ratio of the area to the perimeter is 40:9.
Answer:
2 hours 26 minutes
Step-by-step explanation:
22 pages in 30 minute
1 page in 30/22 =1.36 minute
100 pages in 1.36*100 =136 minute = 2 hours 26 minutes
