All categories

2 years ago

If B=3x^{2}-x+3 and A=x-6, find an expression that equals 2B+3A in standard form.

Mathematics

1 answer:

Ivan2 years ago

7 0

9514 1404 393

Answer:

6x^2 +x -12

Step-by-step explanation:

Substitute for A and B and collect terms.

2B +3A

= 2(3x^2 -x +3) +3(x -6) . . . . substitute for A and B

= 6x^2 -2x +6 +3x -18 . . . . . eliminate parentheses

= 6x^2 +x -12 . . . . . . . . . . . . collect terms

You might be interested in

What is the area of the polygon below

Softa [21]

Answer:

It would be very difficult to determine the area without any given measurements of the sides. I'm afraid I cannot help you with this question.

Step-by-step explanation:

7 0

2 years ago

Calculate to the nearest 1/10th meter the length of the side of a 7th, 12th, and 30th hectare square plot.

Tems11 [23]

Answer and explanation:

To find : Calculate to the nearest 1/10th meter the length of the side of a 7th, 12th, and 30th hectare square plot.

Solution :

The area of the square is given by,

$A=s^2$ where s is the side length.

We know, $1 \text{ hectare}=10,000\ m^2$

1) The area of square plot is 7 hectare.

Area in meter square is $A=7\times 10000=70000\ m^2$

Substitute the value in the formula,

$70000=s^2$

$\sqrt{70000}=s$

$264.57=s$

Side nearest to 1/10th meter is 264.8 meter.

2) The area of square plot is 12 hectare.

Area in meter square is $A=12\times 10000=120000\ m^2$

Substitute the value in the formula,

$120000=s^2$

$\sqrt{120000}=s$

$346.41=s$

Side nearest to 1/10th meter is 346.4 meter.

3) The area of square plot is 30 hectare.

Area in meter square is $A=30\times 10000=300000\ m^2$

Substitute the value in the formula,

$300000=s^2$

$\sqrt{300000}=s$

$547.72=s$

Side nearest to 1/10th meter is 547.7 meter.

5 0

2 years ago

The following is a model showing the solution to an equation. x - 34 = 13 x - 34 + 34 = 13 + 34 x = 47 What property of equality

yanalaym [24]

Answer:

B.) Addition*Additive property of equality

Step-by-step explanation:

You add 34 to both sides of the equation to find what x was equal to

Hope I helped

8 0

2 years ago

Find the next three terms in the sequence. 4, 7, 11, 15, a.) 3, 6, 9, 12 b.) 18, 21, 24, 27 c.)19, 22, 25, 28

cricket20 [7]

Answer:

C because your adding 4 to it I guess

3 0

2 years ago

A shop in the mall is 8 yards by 12 yards. How much would it cost to recarpet the shop with carpet that costs $2.69 per square y

valentinak56 [21]

Answer:

Step-by-step explanation:

You will first have to find the area to find the price of each square yard.

Area is 8*12 = 96. Multiply this by 2.69.

It will cost 258.24 dollars to recarpet the shop.

Let me know if this helped

7 0

1 year ago

Read 2 more answers