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bezimeni [28]
3 years ago
7

Simplify the expression to a polynomial in standard form: (3x+1)(2x^2-5x+7)

Mathematics
1 answer:
Ilia_Sergeevich [38]3 years ago
5 0

Answer:

6x^3-13x^2+16x+7

Step-by-step explanation:

(3x+1)(2x^2-5x+7)

6x^3-15x^2+21x+2x^2-5x+7

6x^3-15x^2+2x^2+21x-5x+7

6x^3-13x^2+16x+7

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Two people share £350 in the ratio 1 : 6.<br><br><br>Calculate each share.
EleoNora [17]

Answer:

£50 and £300

Step-by-step explanation:

Sum the parts of the ratio 1 + 6 = 7 parts

Divide the amount by 7 to find the value of one part of the ratio

£350 ÷ 7 = £50 ← value of 1 part of ratio

Hence

1 person receives £50

the other person receives 6 × £50 = £300

6 0
3 years ago
35 POINTS! PLEASE HELP MEEE!!! HURRY PLEASE IM RUNNING OUT OF TIME!!!!!!!!!!!!!!!!!
lesantik [10]

Answer:

<h2>CYLINDER</h2>

Surface Area = 471.2 cm^2

<h2>TRIANGULAR PRISM</h2>

Surface Area = 60.75 m^2

Step-by-step explanation:

<h2>CYLINDER</h2>

The surface area formula for a cylinder is π x diameter x (diameter / 2 + height), where (diameter / 2) is the radius of the base (d = 2 x r), so another way to write it is π x radius x 2 x (radius + height). ( π =3.14 )

FORMULA:

π x 5 x 2 x 15

WORK:

π x 5 = 15.7

15.7 x 2 = 31.4

31.4 x 15 = 471

<h2>TRIANGULAR PRISM</h2>

The surface area formula for a triangular prism is 2 * (height x base / 2) + length x width1 + length x width2 + length x base.

FORMULA:

2 x (2.5 x 1.5/2) + (6 x 4) + (6 x 4) + (6 x 1.5)

WORK:

(2.5 x 1.5) = 3.75/2 = 1.875

1.875 x 2 = 3.75

(6 x 4) = 24

(6 x 4) = 24

(6 x 1.5) = 9

3.75 + 24 + 24 + 9 = 60.75

5 0
3 years ago
Read 2 more answers
Carpenter A charges $50 an hour. Carpenter B charges $20 to visit your home plus $45 for each hour. For how many hours will the
umka2103 [35]

Answer:

4 hours to pay the same amount

and aif you want a 3 hours work you should get carpenter A

Step-by-step explanation:

50x = 20 + 45x \\ 5x = 20 \\ x = 4hours \\

carpenter A for 3 hours:

50 \times 3 = 150dollars \\

carpenter B for 3 hours:

20 + 45 \times 3 = 155dollars

8 0
3 years ago
Hiii please help i’ll give brainliest if you give a correct answer tysm!
Arisa [49]

Answer:

36

Step-by-step explanation:

The number in the first column is multiplied by 6 to get the number in the second column. 6 times 6 = 36.

I'm extremely sorry if it's wrong.

3 0
3 years ago
Jaime hiked for 3 days across an island. He started at the shoreline, which is at an elevation of O feet.
Gre4nikov [31]

Answer:

  • D. 4120 feet

Step-by-step explanation:

<u>Jamie lost on the third day:</u>

  • 2150 + 1970 = 4120 feet

Correct option is D.

4 0
3 years ago
Read 2 more answers
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