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Marat540 [252]
3 years ago
9

The expression 7n-8n-5+n+2-1 can be simplified to:

Mathematics
2 answers:
alexdok [17]3 years ago
7 0

Answer:

-4

Step-by-step explanation:

combine like terms 8n-8n-6+2

8n-8n=0 so

-6+2=-4

kifflom [539]3 years ago
3 0

Answer:

It can be simplified to: -4

Step-by-step explanation:

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A group of biologists are surveying the mice population in the forest. The equation N=75•3^t gives the total number of mice, N,
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75 and three are the rate at which the total number of mice increases
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3 years ago
Write the standard form of an equation with p=3 sqrt2, theta= 135°​
Arlecino [84]

Answer:

x - y + 6 = 0

Step-by-step explanation:

In normal form of a straight line, the equation is given by  

x\cos \theta + y\sin \theta = p

where p is the perpendicular distance of the line from the origin and \theta is the angle between the perpendicular line and the positive direction of the x-axis.

Here, in our case p = 3\sqrt{2} and \theta = 135 Degree,

Therefore, the normal form of the straight line equation is  

x \cos 135 + y \sin 135 = 3\sqrt{2}

⇒ x \cos (180 - 45) + y \sin (180 - 45) = 3\sqrt{2}

⇒ - x \cos 45 + y \sin 45 = 3\sqrt{2} {Since, Cos (180 - Ф) = - Cos Ф and Sin (180 - Ф) = Sin Ф}

⇒- \frac{x}{\sqrt{2}} + \frac{y}{\sqrt{2}} = 3\sqrt{2}

⇒ - x + y = 3√2 × √2 = 6

⇒ x - y + 6 = 0  

So, the standard form of the equation is x - y + 6 = 0. (Answer)

7 0
4 years ago
Please tell me the anser ♥️
kykrilka [37]
B. the answer is b!!!!!!!!!
7 0
4 years ago
You’re right square format has a base area of 200 inches
Dovator [93]

Answer:

1200 in³

Step-by-step explanation:

V= l×w×h

they gave you l×w which is 200.

200×6= 1200

6 0
3 years ago
Solve for x: 3x = 2/5
snow_tiger [21]

Answer: x= 2/15

as a decimal it is x=0.13 and a line on top of the 3

but your answer is

X=2/15

Step-by-step explanation: Hope this helps please mark me brainlest

5 0
3 years ago
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