X + 1/5y = - 6
subtract x from both sides
1/5y = - x - 6
multiply both sides by 5 to isolate y
y = -5x - 30
Answer:
8:7
Step-by-step explanation:
A <em>scale</em> factor (SF) is the ratio of two corresponding side lengths in similar figures.
The two circles are the similar figures, and the SF is the ratio of their corresponding radii.
SF = outer radius/inner radius
= (35 + 5)/35
= 40/35
= 8/7
The scale factor is 8:7.
Hello,
answer B
f(-4)=-3*(-4)-7=12-7=5
Answer:
143cm
Step-by-step explanation:
Area=2(l+b)
Substitute the values for the variables.
66=2(l+22/5)
66=2xl+2x<u>22</u>
5
66=2l+<u>44</u>
5
Cross multiply
66x5=2l+44
330=2l+44
Collect like terms
-2l = 44-330
-2l = -286
<u>-2l </u>=<u> </u><u>-286</u>
-2 -2
l=143
The missing length is 143m.