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3 years ago

Calculate the values of x and y.

Mathematics

1 answer:

Oduvanchick [21]3 years ago

8 0

Step-by-step explanation:

the dimension for the output isn't correct.

when u multiply 2x2 matrix by 2x1 matrix, the output matrix must have dimensions of 2x1

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What's the step by step progress for writing 14.35 in scientific notation

Dmitry [639]

For scientific notation, you always want 1 digits in front of the decimal.

Ex) 7.39*10^5

Move the decimal point in between the 1 and 4, or 1 place to the left.

1.435

Since the decimal point was moved 1 place to the left, the exponent after 10 will be 1.

1.435*10^1

1.435*10^1 is your final answer.

1.435*10 is the same thing also.

7 0

4 years ago

First-order linear differential equations

kkurt [141]

Answer:

$(1)\ logy\ =\ -sint\ +\ c$

$(2)\ log(y+\dfrac{1}{2})\ =\ t^2\ +\ c$

Step-by-step explanation:

1. Given differential equation is

$\dfrac{dy}{dt}+ycost = 0$

$=>\ \dfrac{dy}{dt}\ =\ -ycost$

$=>\ \dfrac{dy}{y}\ =\ -cost dt$

On integrating both sides, we will have

$\int{\dfrac{dy}{y}}\ =\ \int{-cost\ dt}$

$=>\ logy\ =\ -sint\ +\ c$

Hence, the solution of given differential equation can be given by

$logy\ =\ -sint\ +\ c.$

2. Given differential equation,

$\dfrac{dy}{dt}\ -\ 2ty\ =\ t$

$=>\ \dfrac{dy}{dt}\ =\ t\ +\ 2ty$

$=>\ \dfrac{dy}{dt}\ =\ 2t(y+\dfrac{1}{2})$

$=>\ \dfrac{dy}{(y+\dfrac{1}{2})}\ =\ 2t dt$

On integrating both sides, we will have

$\int{\dfrac{dy}{(y+\dfrac{1}{2})}}\ =\ \int{2t dt}$

$=>\ log(y+\dfrac{1}{2})\ =\ 2.\dfrac{t^2}{2}\ + c$

$=>\ log(y+\dfrac{1}{2})\ =\ t^2\ +\ c$

Hence, the solution of given differential equation is

$log(y+\dfrac{1}{2})\ =\ t^2\ +\ c$

8 0

4 years ago

Please help me find the median to this table

soldi70 [24.7K]

Answer:

The median is 19.45

Step-by-step explanation:

Organize the numbers from least to greatest

16.3, 17.8, 17.8, 18.0, 18.7, 19.3, 19.6, 20.1, 20.5, 21.9, 25.2, 25.4

Find the middle of the set of numbers

19.3 and 19.6

Add 9.3 and 19.6

19.3 + 19.6=

38.9

Divide by 2

38.9/2

Which is 19.45

Hope this helps

6 0

3 years ago

What is the area of triangle IHC?

madam [21]

Answer:

$28 cm^2$

Step-by-step explanation:

The formula for finding the area of a triangle is:

$\frac{1}{2} bh$

The "b," is the base (7), and the "h," is the height (8):

$\frac{1}{2} (7)(8)$

$\frac{1}{2} (56)$

8 0

3 years ago

Linear or nonlinear

marusya05 [52]

Answer:

I think its linear so I dont know 100% but I think it's a sorry if I'm wrong

7 0

3 years ago

Read 2 more answers