This is the diagram
Answer:
b=9
Step-by-step explanation:
This photo is the diagram now for the solution
using the Pythagoras theorem
we know that
C²=a²+b²
now we are looking for the third side we are given the value of A which is 6 and C which is 3√13 then that suppose that we are looking for b
we then make b the subject of the formula
C²=A²+B²
B²=C²-A²
B=√C²-√A²
then we substitute for the values
B=√(3√13)²-√6²
B=√117-√36
B=√81
B=9
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In the first figure we have an angle that subtends a diameter. Those are always right angles, so
Answer: x=90 degrees
In the second figure we have to notice that the measure of arcs and central angles are interchangeable -- the measure of an arc is its central angle.
The units are implicitly degrees; the 10 should say 10°
These are supplementary angles so they add to 180°
3x + (7x + 10) = 180
10x = 170
x = 17
Answer: x=17
17° would be more accurate but the units are a bit ambiguous here so I'll leave it.
Answer:
I don't speak Russian
Step-by-step explanation:
sorry
Answer:
9 and 8 are linear and 10 is non linear
Step-by-step explanation:
an = dn - c
The an stands for the nth term of the pattern. So a1 is the first term and a2 is the second term of the pattern. The d is the difference between each of the terms. The n stands for the term you're calculating. If you're calculating the third term, then n is 3. And c is a constant that you'll need to calculate.
For example, the linear number pattern of 1, 3, 5, 7, 9, … has an equation of:
an = 2n - 1.
Answer:
the answer is the first one [3 -12 15 -21]
Step-by-step explanation:
Because 3 times 1 = 3, 3 times -4 = -12, 3 times 5=15, 3 times 7 = -21
because they are in order to get a negative one of them have to be a negative if they both of them where negative it would be positive.
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