Answer:r6ooooooooo88888888o
Step-by-step explanation:8p68r/80.roror8r,r.o8r
490=10·40+15x
490=400+15x
90=15x
x=6
he worked a total of 46 hours
Answer:
9
Step-by-step explanation:
The value of c is given as 63 and it wants this value to be divided by 7
63 ÷ 7 = 9
Your answer should be 0.3000
If a triangle has sides of 7 cm and it is an equilateral you can draw a line right down the middle to form two congruent triangles.
These smaller triangles have a hypotenuse of 7cm and a base of 3.5 cm (7/2)
To work out the height, use Pythagoras’ theorem.
a^2 + b^2 = c^2 where c is the hypotenuse and a and b are the other two sides
7^2 - 3.5^2 = 36.75
Square root answer
= 6.06 cm
That’s the height of the triangle
Area of a triangle is base x height divided by 2
So 7 x 6.06 = 42.43…
/2
= 21.2 cm^2 to one d.p
Hope this helped!
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