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3 years ago

Mathematical concepts behind Tessellations.

1 answer:

8 0

Here the concept is that we use’l’ to represent the numbers but for number 5 we use 4’l’and we use 1 ’/‘ to represent the number 5 For example:

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HELP ME PLSSSSSS ASAP

Basile [38]

Answer:

the answer is 200 mph because you take and divide the 400 miles by 20 mph

Step-by-step explanation:

5 0

3 years ago

Help me pweasee <br> Find the value of the function f(x) = x2 + 9x + 14, when x = -2.

kati45 [8]

Answer:

-8

Step-by-step explanation:

(-2)2+9(-2)+14

-4+-18+14

-22+14

=-8

Hope this helps

6 0

4 years ago

Read 2 more answers

assume x and y are both differentiable functions of t. find dx/dt given x=-1 and dy/dt=8 for the relation: 4x^2+3y^3=28

melomori [17]

Given:

x and y are both differentiable functions of t.

$4x^2+3y^3=28$

$x=-1\text{ and }\dfrac{dy}{dt}=8$

To find:

The value of $\dfrac{dx}{dt}$ .

Solution:

We have,

$4x^2+3y^3=28$ ...(i)

At x=-1,

$4(-1)^2+3y^3=28$

$4+3y^3=28$

$3y^3=28-4$

$3y^3=24$

Divide both sides by 3.

$y^3=8$

Taking cube root on both sides.

$y=2$

So, y=2 at x=-1.

Differentiate (i) with respect to t.

$4(2x\dfrac{dx}{dt})+3(3y^2\dfrac{dy}{dt})=0$

Putting x=-1, y=2 and $\dfrac{dy}{dt}=8$ , we get

$4(2(-1)\dfrac{dx}{dt})+3(3(2)^28)=0$

$-8\dfrac{dx}{dt}+9(4)(8)=0$

$-8(\dfrac{dx}{dt}-9(4))=0$

Divide both sides by -8.

$\dfrac{dx}{dt}-36=0$

$\dfrac{dx}{dt}=36$

Therefore, the value of $4x^2+3y^3=28$ is 36.

6 0

3 years ago

P. John roller skates with a constant

Vitek1552 [10]

Answer:

2 1/2 hours

Step-by-step explanation:

1. multiply 12 by 2 to get 24

2. divide 12 by 2 to get 6 mph (miles per hour)

3. Add the 6 and 24

3 0

4 years ago

Work out the following, giving your answers in their simplest form: 4 2/5 ÷ 1 1/5

Black_prince [1.1K]

Answer:

First make mixed

4 x 5 = 20

20 + 2 = 22

22/5 = 4 2/5

1 x 5 = 5

5 + 1 = 6

6/5= 1 1/5

Multiply the reciprocal. The reciprocal is the fraction flipped over like 1/2 becomes 2/1

22/5 / 6/5 = 22/5 x 5/6

Multiply

22 x 5 = 110

5 x 6 = 30

110/30

Simplify

110/10=11

30/10=3

Answer is

11/3 = 3 2/3

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers