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3 years ago

6

Simplify the expression. ab – 2ac + cb

1 answer:

nignag [31]3 years ago

6 0

Answer:

ab - 2ac + cb

Step-by-step explanation:

This expression cant be simplified

You might be interested in

Find the equation for intercept x 4 and y -7

nadezda [96]

Answer:

y = $\frac{-7x}{4} - 14$

Step-by-step explanation:

The equation used to find the equation for a line with two intercepts is called point slope form. $y - y_{1} = m(x - x_{1})$ , where $y_{1}$ and $x_{1}$ are the intercept points and m is the slope.

However, we need the slope to use this formula.

Use $m = \frac{y_{1} - y_{2} }{x_{1} - x_{2}}$

m = \frac{y_{1} - y_{2} }{x_{1} - x_{2}}

$m = \frac{((0) - (7))}{((4) - (0))}$

$m = \frac{-7}{4}$

$y - y_{1} = m(x - x_{1})$

y - ( -7 ) = m ( x - ( 4 ) )

y - ( -7 ) = -7/4 ( x - ( 4 ) )

y + 7 = -7/4 ( x + 4 )

y + 7 = $\frac{-7(x+4)}{4}$

y + 7 = $\frac{-7x-28}{4}$

y + 7 = $\frac{-7x}{4} - 7$

y + 7 = $\frac{-7x}{4} - 7$ - 7

y = $\frac{-7x}{4} - 14$

8 0

4 years ago

X = 2t<br> y = t + 5, -2 ≤ t ≤ 3<br> Can you please graph this

svp [43]

Answer:

See attachment

Step-by-step explanation:

The given parametric equations are;

$x=2t$ and $y=t+5$ , $-2\le t\le 3$ .

We can graph this by plotting some few points within the given range or eliminate the parameter to identify the type of curve.

Plotting points;

When $t=-2$ ,

$x=2(-2)=4$ and $y=-2+5=3$

This gives the point (-4,3).

When $t=0$

$x=2(0)=0$ and $y=0+5=5$

This gives the point (0,5).

When $t=3$

$x=2(3)=6$ and $y=3+5=8$

This gives the point (6,8).

We plot these points and draw a straight line through them.

Eliminating the parameter.

$x=2t$

$y=t+5$

Make t the subject in the second equation;

$t=y-5$

Substitute into the first equation;

$x=2(y-5)$

This implies that;

$x=2y-10$

$y=\frac{1}{2}x+5$

This is an equation of a straight line with slope $\frac{1}{2}$ and y-intercept 5 on the interval

$-4\le x \le 6$

7 0

3 years ago

Read 2 more answers

Hernando ate StartFraction 2 Over 8 EndFraction of a pizza for a dinner. He gave his 6 friends the rest of the pizza and told th

Sidana [21]

Answer:

Yes, because there were 8 pieces to start with. Hernando ate 2, leaving six pieces to split equally between his other six friends.

7 0

2 years ago

A 50 square inch model of a forest is built where one square inch equals one square mile. If the forest has approximately 35 pin

alexandr402 [8]

Answer:

1750 trees

Step-by-step explanation:

Scale :

1 inch² = 1 mile²

Number of pine trees per square inch = 35

Area of model = 50 inch²

Hence,

Since scale factor is ; 1 inch² = 1 mile²

Area of forest will also be 50 mile²

Approximate number of trees on forest ;

Area * number of trees per square inch

50 * 35

= 1750 pine trees

8 0

3 years ago

Suppose that the compound inequality is changed to y-3>5 and y+3<-2 which statement describes the valid solutions for this

Irina-Kira [14]

B, that would be my best guess

8 0

3 years ago