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2 years ago

What is the answer to $(x+4)(x^2+3x+2)=

Mathematics

2 answers:

lesya [120]2 years ago

8 0

Answer:

=3 + 7 2 + 1 4 + 8

Step-by-step explanation:

Hoochie [10]2 years ago

8 0

Answer:

x^3+7x^2+14x+8

Step-by-step explanation:

(x+4)(x^2+3x+2)

x^3+3x^2+2x+4x^2+12x+8

x^3+3x^2+4x^2+2x+12x+8

x^3+7x^2+14x+8

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Jim drives his children to their sports activities outside of school. When he drives his son to baseball practice, it is a 6-km

trapecia [35]

Answer:

17.4 kilometers per week

Step-by-step explanation:

we know that

The number of kilometers that Jim drives a week is equal to the number of baseball practice multiplied by its round trip plus the number basketball practice multiplied by its round trip

Remember that

$1\ km=1,000\ m$

$1,800\ m=1,800/1,000=1.8\ km$

$2(6)+3(1.8)=17.4\ km$

6 0

2 years ago

Two lines, A and B, are represented by the equations given below!

lara [203]

Answer:

The solutions to the system of equations are:

$y=-8,\:x=-4$

Thus, option C is true because the point satisfies BOTH equations.

Step-by-step explanation:

Given the system of the equations

$\begin{bmatrix}y=x-4\\ y=3x+4\end{bmatrix}$

Arrange equation variables for elimination

$\begin{bmatrix}y-x=-4\\ y-3x=4\end{bmatrix}$

$y-3x=4$

$-$

$\underline{y-x=-4}$

$-2x=8$

$\begin{bmatrix}y-x=-4\\ -2x=8\end{bmatrix}$

solve for x

$-2x=8$

Divide both sides by -2

$\frac{-2x}{-2}=\frac{8}{-2}$

$x=-4$

$\mathrm{For\:}y-x=-4\mathrm{\:plug\:in\:}x=-4$

$y-\left(-4\right)=-4$

$y+4=-4$

$y=-8$

The solutions to the system of equations are:

$y=-8,\:x=-4$

Thus, option C is true because the point satisfies BOTH equations.

8 0

2 years ago

If 30% of a number equals 25, find 60% of that number.

suter [353]

Answer:

14.94

Step by step:

25/30 = 83.333

.30x83 = 24.9

.60 x 24.9 = 14.94

6 0

2 years ago

Read 2 more answers

9th question help ?!

Daniel [21]

Hey there! :)

You have to find the area of all of them and add it together.

Formulas:

Area of a square: l · w
Area of a triangle: (b · h) ÷ 2

Square -

l = 3
w = 3

3 × 3 = 9

Triangle -

b = 3
h = 3

(3 × 3) ÷ 2
9 ÷ 2 = 4.5

There are 4 triangles

4.5 × 4 = 18

9 + 18 = 27

The surface area ⇒ 27 cm²

5 0

3 years ago

1) 1/3 2)6 3)-6 4)-3 5)-1/3 6) 3

slega [8]

Answer:

$\frac{3}{1}$ or 3

Step-by-step explanation:

To find the slope find two coordinates and set up the equation $\frac{y_{2}-y_{1} }{x_{2} -x_{1} }$

For the coordinates (0,2) and (2,8) y2 is 8 and y1 is 2. x2 is 2 and x1 is 0. $\frac{8_{}-2_ }{2-0_ }$ you have to do subtraction first. 8-2 = 6 and 2-0 = 2

Now we have the equation $\frac{6}{2}$

this can be simplified to $\frac{3}{1}$

6 0

2 years ago