Answer:
Step-by-step explanation:
B,E,F
Answer:
400 or 0.0025
Step-by-step explanation:4^2=16
5^-2=0.04
16/0.04=400
0.04/16=0.0025
15+8x=2x+7-5x
Subtract 8x from both sides.
15=2x+7-5x-8x
Combine like terms.
15=-11x+7
Subtract 7 from both sides.
8=-11x
Divide -11 from both sides.
.73=x
Your answer is .72
Answer:
-5
Step-by-step explanation:
the opposite of plus 10 is negative so u add negative 10 to positve and do the same to 5
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Here we are asked to find the smallest number which must be multiplied to 240 to make it a perfect square .
So , lets do prime factorisation of 240 .
Here , 240 = 2 × 120 .
= 2 × 2 × 60.
= 2 × 2 × 2 × 30.
= 2 × 2 × 2 × 2 × 3 × 5 .
Hence we got 240 = 2⁴ × 3¹ × 5¹ .
Now here we can see that , in order to make a perfect square it should be multiplied by 3 × 5 = 15 in order to make power of prime factors even .
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