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2 years ago

Solve n=m+9 for m what does m equal

Mathematics

1 answer:

alexandr1967 [171]2 years ago

8 0

Answer:

m=-9+n

Step-by-step explanation:

you want to get m by itself so you subtract 9 on both sides. 9-9 crosses out and you get m by itself. Which leads you to m= -9+n

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Find the solution of 3 times the square root of the quantity of x plus 6 equals negative 12, and determine if it is an extraneou

Anna35 [415]

For this case we have the following equation:
$3 \sqrt{x+6}=-12$
Rewriting we have:
$\sqrt{x+6}= \frac{-12}{3}$
$\sqrt{x+6}=-4$
We raise both members of the equation to the square:
$(\sqrt{x+6})^2=(-4)^2$
Rewriting we have:
$x+6=16$
$x=16-6$
$x=10$
It's a extraneous solution because equality is not met by substituting x = 10 in the original equation:
$3 \sqrt{10+6}=-12$
$3 \sqrt{16}=-12$
$3(4)=-12$
$12=-12$
Answer:
The solution is:
$x=10$
It's a extraneous solution

6 0

2 years ago

The graph shows a reflection in the x-axis. The matrix M such that, for any point (x, y), M(x, y) = (x', y') is

Rashid [163]

Answer:

This is a reflection about the x-axis.

Step-by-step explanation:

A reflection about the x-axis has the rule

[x,y]-> [x,-y].

Therefore

M[x,y] = [x,-y}

Let M=

|a b|

|c d|

Then the matrix multiplication gives

ax+by=x.............(1)

cx+dy=-y............(2)

Solving the previous equations (1) and (2) gives

a=1, b=0

c=0, d=-1

giving M as

|1 0|

|0 -1|

4 0

2 years ago

Please help with both if you can!<br><br> Thank you!

Alexxandr [17]

Answer:

15). is done

16).

$slope = \frac{ {y}^{1} - {y}^{o} }{ {x}^{1} - {x}^{o} } \\ = \frac{2 - ( - 2)}{ - 3 - 9} \\ = \frac{4}{ - 12} \\ slope = - \frac{1}{3}$

8 0

2 years ago

What is the greatest number which can be made using each of the digits 5,3,1,4,7?

Xelga [282]

75,314 because it is only 5 numbers so this is correct.

4 0

2 years ago

A cylinder has a height of 9 inches. The radius of the cylinder is 1 3 1 3 the height of the cylinder. What is the approximate v

Yuliya22 [10]

Answer:

254.57 in^3

Step-by-step explanation:

A cylinder has a height of 9 inches. The radius of the cylinder is 1 / 3 the height of the cylinder. What is the approximate volume of the cylinder?

volume of a cylinder = nr^2h

n = 22/7

r = radius

radius = 9 x 1/3 = 3 inches

(22/7) x (3^2) x 9 = 254.57 in^3

4 0

2 years ago