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Hoochie [10]
3 years ago
5

Help please!! THANK YOU!

Mathematics
1 answer:
Oxana [17]3 years ago
7 0

Answer:why is people deleting my answer?!???

Step-by-step explanation:what’s wrong with you guys -_-

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Raju is cycling at a speed of 30km/h. He applies brakes and stops at a junction in 10s. Calculate the acceleration.
Sedbober [7]

Answer:

Acceleration = 3m/s²

Step-by-step explanation:

Here ,

Initial velocity = 30km/h

Final velocity = 0km/h

Time = 10s

Acceleration = ?

We know ,

A = v-u/t

or , A = 0-30/10

or, A = 30/10

A = 3m/s²

Therefore the acceleration is 3m/s²

7 0
3 years ago
If y = kx, what is the value of k if y = 20 and x = 0.4?<br> A) 5 <br> B) 8 <br> C) 9.6 <br> D) 50
mariarad [96]

Answer:

D) 50

20/0.4=50

Step-by-step explanation:


7 0
3 years ago
The vertical of three squares are joined to form a right triangle , what is the area of the largest square
lakkis [162]

Answer:

43cm²

Step-by-step explanation:

let's first consider the area of a square.

the area is L² which means all sides are equal so we take the length times the breadth which is both equal because like we said all sides are equal.

so to find the side of the square using the area, we take the square root of both of the area.

\sqrt{25}  = 5

and also

\sqrt{18}  = 4.2

so we have the height of the triangle as 5cm and the base is 4.2cm.

now, from the triangle, since we have two sides and it's a right-angled, we can use Pythagoras' formula.

\sqrt{ {5}^{2}  +  {4.2}^{2} }  = 6.53cm

so the side 6.53cm is also the same side as the largest triangle. Since it's a square, all sides are equal. So we find the area of the largest triangle by using the formula

Area = L²

Area = 6.53²

Area = 42.6cm

the nearest cm square

Area = 43cm²

8 0
2 years ago
Read 2 more answers
At an airport , it costs $7 to park for up to one hour and $5 per hour for each additional hour. Let x represent the number of h
avanturin [10]
C(x) = 5x + 2

This is because at 1 hour it only cost 7 dollars, so it should only have 2 added to the end. 
5 0
3 years ago
Kelsey graphed the equation y = 3x + 1 as shown below.
miv72 [106K]
I think it’s B but I’m not for sure
6 0
3 years ago
Read 2 more answers
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