Answer:
The angles are complementary
x is 55 degrees
Step-by-step explanation:
Complementary angles are angles that sums up to 90 degrees
Since a ray intersects two other rays forming a right angle, hence the sum of the two angles is 90degrees and this shows that the angles are complementary.
Given the two angles to be x and (x-20). Taking their sum and equating it to 90 degrees, we will have;
x + x - 20 = 90
2x - 20 = 90
2x = 90+20
2x = 110
x = 110/2
x = 55 degrees
Hence the value of x is 55degrees
The partial products include copies of the multiplicand when the multiplier bit is '1', and all zeros when the multiplier bit is '0'.
Answer:
23.2%
Step-by-step explanation:
First we need to find how many half lives 135 years is:
135 ÷ 64 = 2.109375
Now we divide 100% by 2 to the power of the number of half lives. This is how you calculate the percentage of the original amount left. If you have the original mass, you can substitute that in instead of 100%:
100 ÷ 
= 23.1747390635
To 1 decimal place it is 23.2%
Answer:
1. h
2. k
3. d
4. j
5. m
6. n
7. a
8. l
9. e
10. c
11. f
12. i
13. g
14. b
Step-by-step explanation:
1. a quotient of two quantities -> h. fraction
2. a quotient that involves variables -> k. algebraic fraction
3. numbers that would result in division by zero -> d. exclusions
4. multiply the numerators and multiply the denominators for a new fraction -> j. multiplication of fractions
5. multiply by the reciprocal of the divisor -> m. division of fractions
6. the denominators must be the same -> n. addition of fractions
7. contains a fraction in the numerator, denominator, or with the denominator -> a. complex fractions
8. a new fraction resulting from the interchanging of the numerator and denominator -> l. reciprocal
9. the dividend of a fraction -> e. numerator
10. the divisor in a fraction -> c. denominator
11. the lowest common multiple of denominators -> f. lowest common denominator
12. a combination of integral and fractional expressions -> i. mixed expression
13. an equation that contains fractions -> g. fractional equation
14. a statement that two fractions are equal -> b. proportion
80 because tens place is two over from the right
