Because there is a +e and a -e in the two equations we can simply add them together to solve for d...
2d+e+d-e=8+4 combine like terms
3d=12 divide by 3
d=4, now use this d in either original equation to solve for e...<span>d–e=4 so
4-e=4 subtract 4
-e=0
e=0
So the solution, where the lines intersect graphically, is the point (4, 0)</span>
Answer:
45.6°
Step-by-step explanation:
take the inverse cosine of 7/10:
you get about 45.573°
they want to the nearest 10th, so it would be 45.6°
Answer:
36
Step-by-step explanation:
The equation would turn out as 23--13
But when there are two negatives, it turns into a positive, creating the equation of 23+13
Then you add to equal 36.
Answer:
4
Step-by-step explanation:
• Divide the larger number by the smaller number
• If remainder is 0 then the smaller number is the HCF
• If not repeat with the remainder and smaller number until a remainder of 0 is reached.
1820 ÷ 204 = 8 remainder 188
204 ÷ 188 = 1 remainder 16
188 ÷ 16 = 11 remainder 12
16 ÷ 12 = 1 remainder 4
12 ÷ 4 = 3 remainder 0 ← remainder of 0 reached
Thus 4 is the HCF of 1820 and 204
52% of 126=0.52 times 126=65.52
I hope this helps :)