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3 years ago

What is this simplified? y+x+y+y+x

Mathematics

1 answer:

Airida [17]3 years ago

4 0

Answer:

$2x + 3y$

Step-by-step explanation:

$y+x+y+y+x \\ =x + x + y + y + y \\ = 2x + 3y$

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If 9 out of 10 doctors in a small city recommend afternoon naps, and there are 8 doctors in the city who don’t recommend naps, h

Hitman42 [59]

Answer:

Step-by-step explanation:

1 out of 10 do not recommend naps, so 9 times as many do recommend naps.

9 × (8 doctors) = 72 doctors . . . . . recommend naps

3 0

3 years ago

Y = (x) =(1/8)^x<br> Find f(x) when X =<br> (1/3)<br> Round your answer to the nearest thousandth.

vlada-n [284]

Answer:

1/2.

Step-by-step explanation:

f(x) = (1/8)^x

when x = 1/3

f(x) = (1/8)^1/3

f(x) = ∛(1/8)

f(x) = 1 / ∛8

f(x) = 1/2.

6 0

3 years ago

Instructions: Find the equation of the line through point (2, 2) and parallel

mr Goodwill [35]

it's a parallel line so the gradient stays the same

y= x + c

substitute in the point specified

2 = 2 + c

2-2=0

so the answer is y=x

hope this helps!

5 0

4 years ago

Dont answer if u dont know the answer pls

mote1985 [20]

Answer:

The answer is:

$\left[\begin{array}{ccc}-29&-16\\14&15\end{array}\right]$

Step-by-step explanation:

(Presuming you wanted to add these)

From the image that is given/shown, this is matrices.

In matrices, the numbers will somewhat correlate with each other!

From what is stated, "Find 3M + 7N"

We must substitute in M and N for the pair of matrices that are given:

M = $\left[\begin{array}{ccc}2&-3\\0&6\\\end{array}\right]$ and N = $\left[\begin{array}{ccc}-5&-1\\2&9\\\end{array}\right]$

You will then be left with:

3 $\left[\begin{array}{ccc}2&-3\\0&6\\\end{array}\right]$ + 7 $\left[\begin{array}{ccc}-5&-1\\2&9\\\end{array}\right]$

when then need to add these together:

1) First Multiply the matrix by 3, you'll get:

$\left[\begin{array}{ccc}6&-9\\0&18\\\end{array}\right] + 7\left[\begin{array}{ccc}-5&-1\\2&9\\\end{array}\right]$

(Each number in the matrix is being multiplied by the values: 3 or 7)

2) Then Multiply the matrix by 7, and you'll get:

$\left[\begin{array}{ccc}6&-9\\0&18\\\end{array}\right] + \left[\begin{array}{ccc}-35&-7\\14&63\\\end{array}\right]$

3) Add the matrices:

$\left[\begin{array}{ccc}6+(-35)&-9+(-7)\\0+(14)&18+(63)\\\end{array}\right]$

6 - 35 = -29

-9 - 7 = -16

0 + 14 = 14

18 + 63 = 81

After solving the matrices, you get:

$\left[\begin{array}{ccc}-29&-16\\14&15\end{array}\right]$

7 0

4 years ago

Read 2 more answers

If the airplane is traveling at a velocity of 320 km/h to the north, how long will it take to reach its destination if that dest

klasskru [66]

Answer:

7. 1 hour take to reach its destination if that destination is 2300 km to the north .

Step-by-step explanation:

Given : The airplane is traveling at a velocity of 320 km/h to the north,

To find : how long will it take to reach its destination if that destination is 2300 km to the north.

Solution : We have given

Airplane cover 320 km = 1 hour .

Airplane cover 1 km = $\frac{1}{320}$ hour.

Airplane cover 2300 km = $\frac{1}{320} * 2300$ .

= 7. 1 hour.

Therefore, 7. 1 hour take to reach its destination if that destination is 2300 km to the north .

7 0

4 years ago