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3 years ago

Please help me on this

Mathematics

1 answer:

kkurt [141]3 years ago

6 0

Answer:

answe are ,

1). (n+10)

2) (3n+4)

3). (7x -9)

4). (x+6)

5). (5x+2)

6). (x+10)

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If M is the midpoint of XY, find the coordinates of X if M(-3,-1) and Y(-8,6)

vova2212 [387]

$\bf \textit{middle point of 2 points }\\ \quad \\
\begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
% (a,b)
X&({{ a}}\quad ,&{{ b}})\quad 
% (c,d)
Y&({{ -8}}\quad ,&{{ 6}})
\end{array}\qquad
% coordinates of midpoint 
\left(\cfrac{{{ x_2}} + {{ x_1}}}{2}\quad ,\quad \cfrac{{{ y_2}} + {{ y_1}}}{2} \right)$

$\bf \left( \cfrac{-8+a}{2}~,~\cfrac{6+b}{2} \right)=\stackrel{M}{(-3,-1)}\implies 
\begin{cases}
\cfrac{-8+a}{2}=-3\\\\
-8+a=-6\\
\boxed{a=2}\\
----------\\
\cfrac{6+b}{2}=-1\\\\
6+b=-2\\
\boxed{b=-8}
\end{cases}$

5 0

2 years ago

Simplify the following expression.

MissTica

Answer:

D. 0.054

Step-by-step explanation:

61.904 - 61.85

= 0.054

Therefore, answer choice D is the correct answer.

6 0

2 years ago

F(x) = 3x + 9, g(x) = 5x2 Find (f + g)(x).

Karo-lina-s [1.5K]

F(x) = 3x + 9
g(x) = 5x²

(f + g)(x) = (3x + 9) + 5x²
(f + g)(x) = 3x + 9 + 5x²
(f + g)(x) = 5x² + 3x + 9

4 0

3 years ago

Read 2 more answers

Help! How to factorise= x²-5x+6?!!!!!!

lisabon 2012 [21]

Answer:

(x − 2)(x − 3)

Step-by-step explanation:

x² - 5x + 6

(x − 2)(x − 3)

3 0

2 years ago

Please help out!!!!!

andreev551 [17]

Answer:

SSS

Step-by-step explanation:

It will be SAS or AAS or ASA if there is the little angle sign that looks like a semi-circle in the corner. But the Lines in the side of the tringles indicate side not angle

7 0

2 years ago

Please help me on this​

Please help me on this