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Gnom [1K]
2 years ago
6

PLS HELP I WILL DO ANYTHING!!!!

Mathematics
1 answer:
Andru [333]2 years ago
8 0
First let’s find the slope (gradient):

We pick 2 coordinates on the line. Let’s choose (2,100) and (8,400)

Gradient = (y2-y1)/(x2-x1) = (400-100)/(8-2) = 300/6 = 50

The general equation of a line is in the form y = mx + c, where m is the gradient

So we have, y = 50x + c

To find c, we replace one of the coordinates that we chose in the equation. Let’s replace (2,100)

100 = 50(2) + c
100 = 100 + c
c = 100 - 100 = 0

Therefore, the equation is y = 50x + 0 which is y = 50x
You might be interested in
A right angled triangle has sides of length 9cm, 12cm and 15cm. Calculate its area in square centimetres.
Dmitriy789 [7]

The area of a right angled triangle with sides of length 9cm, 12cm and 15cm in square centimeters is 54 sq cm.

The formula to calculate the area of a right triangle is given by:

Area of Right Triangle, A = (½) × b × h square units

Where, “b” is the base (adjacent side) and “h” is the height (perpendicular side). Hence, the area of the right triangle is the product of base and height and then divide the product by 2.

We know that the hypotenuse is the longest side. So, the area of a right angled triangle will be half of the product of the remaining two sides.

Given sides of the triangle:

a=9cm

b=12cm

c=15cm

From this we know that the hypotenuse is c. Are of the triangle will be obtained by the other two sides.

∴Area = \frac{1}{2} x 9 x 12

= 54cm^{2}

5 0
1 year ago
How do I solve ?? It’s cylinders
UkoKoshka [18]
V= 3.14r^2h
10/2= r
5^2= 25
(3.14)(25)(6)
V=471
3 0
3 years ago
Can someone help me please and show work thank you
VladimirAG [237]

Answer:

60% decrease

Step-by-step explanation:

To work out percentage change you takeaway the original number by the new number (New number-Original number) in this case 24-60=(-36), then divide the decreased amount by the original number and multiply the answer by 100 (Decrease amount ÷ Original number x 100) for this question you'd do (-36)÷60=(-0.6) then (-0.6)x100=(-60).

The minus shows its a decrease in percentage by 60%

(I hope this helps srry if it doesn't make sense)

6 0
3 years ago
Katherine has $140 in the bank and is saving $6 per week. Abbie has $462 in the bank, but is spending at a rate of $10 per week.
AveGali [126]
Let x be the number of weeks for this financial situation. The amount that Katherine will have at the end of x weeks is 140 + 6x. On the other hand, with the spending that she is doing, Abbie will have 462 - 10x after x weeks. Equating the two,
                                     140 + 6x = 462 - 10x
Thus, the answer is letter B. 
3 0
3 years ago
Read 2 more answers
Out of the 12 girls who tried out for the softball team, 10 will be chosen for the team. Find the number of different 10-person
olga nikolaevna [1]

Answer:

The answer is 66 ways .

Step-by-step explanation:

You have to use <u>Combination</u> because it says choosing 10 out of 12 as the position is not important :

12C10 = 66 ways of arrangements

8 0
3 years ago
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