Answer:
60 × 50 = 3000
7 × 50 = 350
60 × 4 = 240
7 × 4 = 28
3000 + 350 + 240 + 28 =3618
54 × 67 = 3618
I think it should be 42 but i might be wrong..
Answer:
- 278.4°F
Step-by-step explanation:
Temperature of Object ( T ) = 1200° F
Temperature of surrounding ( M ) = 80°F
Time ( t ) = 1 hour
dT / dt ∝ ( M - T )
dT /dt ∝ | ( 80 - 1200 ) |
dT / dt = k ( 1120 )
(1200 - 830 ) / 1 = k ( 1120 )
hence k = ( 1200 - 830 ) / 1120
= 370 / 1120 = 0.33
<u>what is the object's temperature (x )after 4 hours </u>
( 1200 - x ) / 4 = 0.33 ( 1120 )
( 1200 - x ) / 4 = 369.6
hence x = 1200 - ( 4 * 369.6 )
= - 278.4 ° F
1) <u>Find the length of the diagonals of the greater rhombus</u>
NJ=9 units
XY=6 units
Find the the ratio
NJ/XY=9/6-------> 3/2
2) <u>Find the length of the diagonals of the smaller rhombus</u>
HS=6 units
ZC=4 units
Find the the ratio
HS/ZC=6/4-------> 3/2
so
NJ/XY=HS/ZC--------> the rhombus are similar
the scale factor is equal to ------> 3/2=1.5
measure greater rhombus =scale factor*measure smaller rhombus
measure greater rhombus =1.5*measure smaller rhombus
measure smaller rhombus=(measure greater rhombus/1.5)
therefore
<u>the answer is</u>
Yes , they are a scaled copies and the scale factor is equal to 1.5