2 years ago

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Mathematics

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sweet [91]2 years ago

7 0

Answer:

what is questions please ask questions their

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A is the point with coordinates (5,9) B is the point with coordinates (d,17) The line AB has gradient 4 Work out the value of d

yarga [219]

Answer:

d=9

Step-by-step explanation:

The gradient of straight line is given by

$m=\frac{y_2-y_1}{x_2-x_1}$

Plug in our knows

$4=\frac{17-9}{d-5} \text{ Solve for d} \\\\4(d-5)=8\\\\d-5=4\\d=9$

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1 year ago

Find the surface area of a cylinder with a base radius of 2 in and a height of 5 in

Vsevolod [243]

Answer:

$r = 2 \\ h = 5 \\ a = 2\pi \: rh + 2\pi {r}^{2} \\ = 2\pi \times 2 \times 5 + 2\pi {2}^{2} \\ = 20\pi + 8\pi \\ = 28\pi \\ = 28 \times 3.14 \\ = 87.92 {unit}^{2} \\ thank \: you$

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2 years ago

What are the values of x and y?

lesantik [10]

Please help me out owo

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3 years ago

Solve c= 8a-3b for a

Vesnalui [34]

Answer:

(c+3b)/8 = a

Step-by-step explanation:

c= 8a-3b

Add 3b to each side

c+3b= 8a-3b+3b

c+3b = 8a

Divide each side by 8

(c+3b)/8 = 8a/8

(c+3b)/8 = a

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2 years ago

Find the solution of the system of equations 2x-4y=32 2x-8y=48

Sveta_85 [38]

<span>2x-4y=32
2x-8y=48
--------------subtract
4y = - 16
y = -4

</span>2x-4y=32
2x- 4(-4)=32
2x + 16 = 32
2x = 16
x = 8

answer
(8, -4)

6 0

3 years ago

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