The triangle MBF is isosceles triangle, because MB is congruent to MF
So, mAnd we should know that , the sum of the angles of the triangle = 180
So,
So,
Answer:
i believe it's c. im not 100% sure though!
Step-by-step explanation:
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Answer:
The y intercept and the slope are given in the equation. y=mx+b is slope-intercept form. mx is the slope and b is the y intercept. so in y=3x-5, 3x is the slope and -5 is the y intercept (what y is when x is zero).
Step-by-step explanation:
For this case we define the following variable:
<em>x: unknown number
</em>
We then have the following equation:
From here, we clear the value of x.
We have then:
Answer:
An irrational number that can be multiplied by negative square root of 41 to get a product that equals 1 is:
Answer: 30g
Step-by-step explanation:
In this question (t½) of isotope is 40 days, which means that after 40 days half of the sample would have decayed and half would be left as it is.
After 40 days ( first half life) 240 /2 = 120 g decays and 120 g remains left.
After another 40 days ( two half lives or 80 days) 120 /2 = 60 g decays and 60 g remains left .
after three half lives or 120 days, 60/2 = 30g decay and 30 g of the isotope will be left.
