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marin [14]
3 years ago
13

-1/2m=-9 what does m=

Mathematics
1 answer:
lilavasa [31]3 years ago
5 0

Answer:

m = 18

Step-by-step explanation:

Step 1: Write out equation

-1/2m = -9

Step 2: Multiply both sides by -2

m = 18

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PLease help me in my maths homework I dont really understand it. Calculate the area of the trapezium CDEF
alexira [117]

Answer:

48

Step-by-step explanation:

first, since its a rectangle, the parallel sides are equal making the top of the rectangle 9cm. the to fins the sides, we do 9+9( because of the sides o the rectangle) which gives us 18. then we need to do 28-18 to find out how much both the other sides of the rectangle are, which is 10. now we divide that by 2 since we want one for each side main the measurements for the rectangle are 9cm by 5 cm. now since to find out the area of aa trapezium, we use the formula   A=1/2(a+b)h which means we add the 2 parallel sides of the rectangle which are 5 and 9. we got the 9 from figuring out the rectangle remember? now 9+5=14. next we times it by the height which will be 6 since 11-5 is 6. we got the 5 from figuring out the rectangle above. now 14x6 is 84. however what about then 1/2 part in the formula?. well, all we do now is divide 84 by 2 which gives us 48

REMEMBER: The formulae for working out the area of a trapezium is 1/2x(a+b)xh

5 0
2 years ago
A fish tank holds 180 gallons of water and is leaking at a rate of 8 gallons per day. A second fish tank holds 160 gallons of wa
Sonja [21]

Answer: 10 days

Step-by-step explanation:

4 0
3 years ago
Write an equation in point-slope form of the line that passes through the point (9, 0) and has a slope of m=−3
Softa [21]

Answer:

y=-3(x-9)

Step-by-step explanation:

Point slope form is y-y1=m(x-x1)

x1=9

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plug it all in!

y-0=-3(x-9)

y=-3(x-9)

Hope this helps!

7 0
3 years ago
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earnstyle [38]
C. 4x

Have a good day ;)

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3 years ago
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