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madreJ [45]
3 years ago
15

Urgent please help..

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

Answer:

24 cm²

Step-by-step explanation:

diagonals

d1 = 6 cm, d2 = 8 cm

Area of Rhombus

= 1/2 * d1 * d2

= 1/2 * 6 * 8

= 24 cm²

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Is the point (1,3) a solution to the linear equation 5x-9y=32? explain
harina [27]

There are many ways to check if the point (1,3) is a solution to the linear equation 5x-9y=32.

Let us check it by expressing y in terms of x.

The given expression is 5x-9y=32. If we add -5x to both sides we will get:

-9y=-5x+32

Multiplying both sides by -1 we will get:

9y=5x-32

In order to isolate y, we will divide both sides by 9 to get:

y=\frac{5}{9}x-\frac{32}{9}

Now let us plug in the given value of x=1 from the point (1,3). This should give us y=3. Let us see if we get y=3 when we plug x=1 in the above equation.

y=\frac{5}{9}\times 1-\frac{32}{9}=\frac{5-32}{9}

\therefore y=\frac{-27}{9}=-3

Thus, we see that when x=1, y=-3 and that y\neq 3 and hence we conclude that the point (1,3) is not a solution to the original given linear equation 5x-9y=32.

For a better understanding of the explanation given here a graph has been attached. As can be seen from the graph, (1,3) does not lie on the straight line that represents 5x-9y=32, but (1,-3) does lie on it as we had just found out.





3 0
3 years ago
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Roger has two dogs which are named Sparky and Cookie. The relationship of Sparky’s age, s, and Cookie’s age, c, can be represent
arlik [135]

Answer:

sparky 4 years older than cookie

Step-by-step explanation:

s=c+4

since there nothing to add or subtract. you are just gonna take that 4 and since there is a plus sign you are gonna say older than.

hope this helps

5 0
3 years ago
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Dafna1 [17]

The formula for finding time is the distance divided by the velocity.So the answer is 100÷30=3.3333...

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nordsb [41]

Answer:

-15x - 5

Step-by-step explanation:

5x - 15 - 20x + 10

5x - 20x - 15 + 10

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8 0
3 years ago
The diameter of a cylinder is 8cm and the height is 2. What is the Volume? (NOTE: V=r2h)
Afina-wow [57]

Step-by-step explanation:

diameter= 8

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