3 years ago

Slope intercept form

Mathematics

1 answer:

Liula [17]3 years ago

8 0

$\frac{y_{2}- y_{1} }{x_{2}- x_{1} }$

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A window in the shape of a rectangle as shown below has a width of x+5 and a length of x^2- 3x+7 express the area of the rectang

Ksju [112]

Answer:

$x^3+x^2-5x+28$

Step-by-step explanation:

since a=lw, the area is (x^2-3x+7)(x+4)

1. distribute parentheses $\left(x^2-3x+7\right)\left(x+4\right)=x^2x+x^2\cdot \:4+\left(-3x\right)x+\left(-3x\right)\cdot \:4+7x+7\cdot \:4$

2. apply +(-a)=-a rule $x^2x+4x^2-3xx-3\cdot \:4x+7x+7\cdot \:4$

3. Simplify

Steps to simplify:

$x^2x=x^3$

$3xx=3x^2$

$3\cdot \:4x=12x$

$7\cdot \:4=28$

$x^3+4x^2-3x^2-12x+7x+28$

4. Add like terms $=x^3+4x^2-3x^2-5x+28$

5. Add like terms $=x^3+x^2-5x+28$

6 0

3 years ago

Select the correct answer from each drop-down menu.

german

5 is a coefficient. A coefficient is a number multiplied by a variable.

(2y+13) is a factor. It can be multiplied by 8 to get an extended answer.

-1 is a constant. A constant is a number that does not change.

Hope this helps!

7 0

3 years ago

Read 2 more answers

Byron needs at least 20 m rutes between

Dovator [93]

Answer:

yes

Step-by-step explanation:

if it ends at 430 he will have 30 min before his appoionment

8 0

3 years ago

Solve the equation. x6−7=5 The first step is to___ on both sides of the equation. The second step is to___ on both sides of the

gogolik [260]

Answer:

x=2

Step-by-step explanation:

x6−7=5

x6=7+5

x6=12|:6

x=2

3 0

3 years ago

A jar contains n nickels and d dimes. There are 28 coins in the jar,and total value of the coins is $2.20. How many nickels and

Harman [31]

N + d = 20 (there are a total of 20 nickels and dimes).05n + .1d = 1.4 (total change equals $1.40)

7 0

3 years ago