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NARA [144]
2 years ago
15

Which is the product of (1 +41+3x) (2 - 7x–9x)?​

Mathematics
1 answer:
Andrews [41]2 years ago
6 0

Answer:

-48x^2 -666x+84

Step-by-step explanation:

Exponet is ^2.

Multiply is •

Use Distributed Property. Multiply the second parathesis by each term from the first parathesis.

Any expression multiplied by 1 remains the same. Distribute 41 through the parathesis. 41(2-7x-9x).

Distribute 3x through the parathesis 3x • (2-7x-9x).

You will have these numbers left: (Slide 2)

Add the numbers, 2 and 82 to get 84. Add -7x -9x + -287x -369x + 6x to get -666x. Add -21x^2 - 27x^2 to get 48x^2.

Use the communitative property to reorder the terms. And then your answer is -48x^2 -666x+84.

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Please help me with this
ElenaW [278]

Answer: a=4, b=-8, c=-3

Step-by-step explanation: This equation isn't in standard form. To get it there, subtract -3 from both sides. This gets you an equation of 4x^2-8x-3.

The standard form is ax^2+bx+c.

A is the number before x^2 (4). B is the number before x, and since it's subtracted it's negative (-8). C is the last number, and since it's subtracted it's negative (-3).

7 0
3 years ago
Which situation describes a car that can travel $40 miles per gallon of gasoline?
Salsk061 [2.6K]

Answer:

A car can travel 80 miles on 2 gallons of gasoline.

Step-by-step explanation:

8 0
3 years ago
Malik wanted to make a cube frame out of a long wire 150 cm. If the volume of the cube is 2 197 cm³, is the length of the wire s
Rama09 [41]

Answer:

The wire is sufficient for making a cube of volume 2197 cm³

Step-by-step explanation:

Volume of cube = L³

Volume of the cube = 2197 cm³

Length of the wire = 150 cm

Let's see if the wire is sufficient for making a cube.

Volume of the cube that could be made from the wire is:

V = (L)³

V = (150)³

V = 3,375,000 cm³

So,

The volume of the cube using a 150 cm length wire is much more grater than 2197 cm³.

That is why, the wire is sufficient for making a cube of volume 2197 cm³.

4 0
2 years ago
Please help: 3x+10=-5. What is x?
Rudiy27

Answer:

-5

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Are integers always whole numbers?
serg [7]

Answer:

if I'm thinkng straight integers do always have to be whole numbers but they also can be negative

7 0
3 years ago
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