3 years ago

A is the point with coordinates (4 6)

Mathematics

1 answer:

Delicious77 [7]3 years ago

5 0

Answer:

d = 6

Step-by-step explanation:

Given the coordinates A(4, 6) and B(d, 12) with the gradient of AB to be 3

Gradient m = y2-y1/x2-x1

Substitute the given values

3 = 12-6/d-4

3 = 6/d-4

Cross multiply

3(d-4) = 6

Expand

3d - 3(4) = 6

3d - 12 = 6

Add 12 to both sides

3d - 12 + 12 = 6 + 12

3d = 18

Divide both sides by 3

3d/3 = 18/3

d = 6

Hence the value of d is 6

You might be interested in

Please help meeee it is due tomorrow

Andrews [41]

From the side I think it is (2 x 2269.5 - 6) cm and at the bottom it is (4530 + 3) cm. Both of them are equal to 4533 cm.

6 0

3 years ago

Read 2 more answers

I need help with this!

lapo4ka [179]

Answer:

Step-by-step explanation:

What is the question?

8 0

3 years ago

Scientists have discovered a new substance with a hydrogen ion concentration of 0.095811180 M. Determine the corresponding pH le

blsea [12.9K]

Answer: 1.018

Step-by-step explanation:

The pH level of a substance indicates the concentration of hydrogen ions ( $H^{+}$ ) in a solution and is calculated by:

$pH=-log(H^{+})$

In this case the hydrogen ion concentration is $0.095811180 M$ , where

$M=\frac{moles}{volume}$ . Hence:

$pH=-log(0.095811180 M)$

$pH=1.018$ This means this new substance is acid

4 0

3 years ago

Is it A B or C????????????????????????

Andre45 [30]

I am not sure but I think it's C

5 0

4 years ago

Read 2 more answers

To the nearest square meter, what is the curved surface area of the half pipe if it’s 7 m long?

cupoosta [38]

Answer:

55 m²

Step-by-step explanation:

The arc length of a half-circle is πr, so the area of the curved surface is ...

A = πrl = π(2.5 m)(7 m) = 17.5π m² ≈ 55 m²

6 0

3 years ago

Read 2 more answers