Step-by-step explanation:
step 1. the area of a circle is A. A = (pi)r^2.
step 2. if the diameter is 8 cm then the radius is 4 cm.
step 3. A = (pi)4^2
step 4. A = 16(pi) = 50.24 cm.
Replace <span>x = 2 into f(x)=7x-5
</span> f(2)=7(2)-5 = 14 -5 = 9
answer is <span>A. 9</span>
300=x+1.9x
I got this by dividing the problem into two parts x[the speed of the first half] plus 1.9x [the speed of the second half increased by 1.9] both of those together should give you 300.
I went further and solved this...If you placed 103.5 into this problem for x you should get 300.15!
195/6 = 32.5 so it is $32.50
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The graph shows a number line marking all numbers less that 10.
Choice a:
<span>c + 7 ≤ 3
</span><span>c ≤ 3-7
</span><span>c ≤ -4
Choice a is a wrong choice
Choice b:
</span><span>c - 3 > 1
</span><span>c > 1+3
</span><span>c > 4
Choice b is a wrong choice
Choice c:
</span><span>c - 7 < 3
</span><span>c < 3+7
</span><span>c < 10
Choice c is the correct choice</span>
