Answer:
Step-by-step explanation:
B looks good
Answer:
gradient = -1
Step-by-step explanation:
identify the y intercept ( the point where it meet the y- axis ) which denoted by c in the formula y =mx + c
in the graph :the y- intercept is 5 (c)
take the coordinate of any point that passes through the line :- for example (2,3)
in (2,3), the value of x is 2
the value of y is 3
using the formula y = mx + c find m with is the gradient ( unknown )
y = mx + c
3 = m2 + 5
2m + 5 = 3
we sent + 5 to the right and it changes sign to become -5
2m = 3 -5
we substract -5 from 3
2×m = -2
we send 2 to the other side so that m can be alone, it change to become divide since it was multiply
m = -2 ÷ 2
m = -1
the gradient ( unknown ) = -1
Answer:
4. 10
5. B
6. False, true, true, false, and true.
7. 3 1/2 and 7 1/2
Step-by-step explanation:
I hope this helps ^-^
You haven't actually told us HOW MANY consecutive odd numbers.
If there are three (3) of them, then they are 21, 23, and 25,
and the third one is 25.
Oh ! I think there MUST be three of them. That's the only way
they can all be whole numbers.
We know that
<span>sec a = 5/4
</span>sec(a)=1/cos(a)
then
cos (a)=1/sec(a)
cos (a)=1/(5/4)=4/5---> is positive because the function cos is positive in IV quadrant
the answer is cos(a)=4/5
