Unlike terms displays terms which are not the same. x+2y would be the answer.
Answer:
7 cm, 16 cm, 19 cm
Step-by-step explanation:
Let s represent the length of the shortest side in cm. The longest side is 3s-2, and the other side is 2s+2. The perimeter is the sum of the side lengths.
P = s + (3s -2) +(2s +2)
42 = 6s . . . . . simplify, use the given value of perimeter
7 = s . . . . . . . divide by 6
2s+2 = 16
3s -2 = 19
The side lengths are 7 cm, 16 cm, and 19 cm.
<span>The answer is that
4 kg of pure tin and 28 kg of 4% tin alloy were used to produce the 16% alloy.
</span>
Let,
x
= kg of pure 100% tin
and y = kg of 4% tin
x
+ y = 32
x
= 32 -y
1.00 x + 0.04 y = 0.16 x 32
By
solving the above system of equations we find:
Now
put the value of x in the above equation;
1
x (32 - y) + 0.04 y = 5.12
32
– y + 0.04y = 5.12
y – 0.04y = 32 – 5.12
0.96y
= 26.88
y = 26.88/0.96
y = 28 kg of 4% tin
Now
put the value of y in x = 32 – y
x = 32 – 28
<span>x = 4 kg of pure 100% tin</span>
Answer: magnitude of an earthquake with an energy release of 7.079 X 10^26 =8
Step-by-step explanation:
Given that the magnitude M of an earthquake can be expressed by the equation
M=(2/3)log E - 9.9
Given that Energy release , E=7.079 X 10^26
Magnotude , M=(2/3)log E - 9.9
=2/3 log7.079 X 10^26 -9.9
2/3 x 2.8499719 -9.9
17.8999813 -9.9
=7.9999
rounded to 8 magnitude
arc AB = 160 and < AEB = 110.
Find the measure of arc CD
<AEB = 1/2(arc AB + arc CD)
2* 110 = 160 + arc CD
arc CD = 220 - 160
arc CD = 60
Answer
d. 60