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3 years ago

Express the product of 2x squared +6x-8 and x+3 in standard form

Mathematics

2 answers:

marissa [1.9K]3 years ago

4 0

Answer:

Step-by-step explanation:

(2x^2+6x-8)(x+3)

2x^3+6x^2+6x^2+18x-8x+18

2x^3+12x^2+10x+18

aliya0001 [1]3 years ago

3 0

Answer:

Step-by-step explanation:

(2x^2+6x-8)(x+3)

2x^3+6x^2+6x^2+18x-8x+18

2x^3+12x^2+10x+18

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Order the following numbers from least to greatest...

poizon [28]

Answer:

-25/3, $\sqrt{x} 15$ ,-pi/2,3pi

Step-by-step explanation:

6 0

3 years ago

Find the smallest positive integer k such that 3240/k is a square number

sashaice [31]

Answer:

Step-by-step explanation:

First, factorize the number 3,240:

$3,240=2\cdot 1,620=2\cdot 2\cdot 810=2\cdot 2\cdot 2\cdot 405=2\cdot 2\cdot 2\cdot 2\cdot 5\cdot 81=2^3\cdot 5\cdot 9^2$

So,

$3,240=2^2 \cdot 2\cdot 5\cdot 9^2=18^2\cdot 10$

Now consider the fraction

$\dfrac{3,240}{k}=\dfrac{18^2\cdot 10}{k}$

If k = 10, then

$\dfrac{3,240}{k}=\dfrac{18^2\cdot 10}{10}=18^2$

is a square number.

For all k < 10, the fraction tex]\dfrac{3,240}{k}[/tex] is not a square number (this follows from factorization).

Or you can simply check the values of the fraction for all k < 10:

k = 1, $\dfrac{3,240}{1}=3,240$ is not a square number;
k = 2, $\dfrac{3,240}{2}=1,620$ is not a square number;
k = 3, $\dfrac{3,240}{3}=1,080$ is not a square number;
k = 4, $\dfrac{3,240}{4}=810$ is not a square number;
k = 5, $\dfrac{3,240}{5}=648$ is not a square number;
k = 6, $\dfrac{3,240}{6}=540$ is not a square number;
k = 7, $\dfrac{3,240}{7}$ is not a square number;
k = 8, $\dfrac{3,240}{8}=405$ is not a square number;
k = 9, $\dfrac{3,240}{9}=360$ is not a square number.

5 0

3 years ago

Pls explain below :)

matrenka [14]

Answer:

$9 units^{2}$ aka 9 units

Step-by-step explanation:

Its pretty simple so what u do is count the sqaures then multiply them and ill do it for you

H=3

B=6

and the formula for a triangle is A= $\frac{b*h}{2}$ so its 3x6/2=9

The answer is 9

5 0

3 years ago

Read 2 more answers

The number of students at jefferson school is even. The number has three digits. The digit in the ten place is 4. write there nu

Burka [1]

Let's assign three blanks for each digit of the unknown number. But let's fill in the tens digit because it is already specified.

_ 4 _

The last digit should be even to make it even. The possible digits for this are 2, 4, 6, and 8. The first digit could be any digit from 1 to 9. Therefore, the possible answers are

142 242 342 442 542 642 742 842 942
144 244 344 444 544 644 744 844 944
146 246 346 446 546 646 746 846 946
148 248 348 448 548 648 748 848 948

Therefore, there are a total of 36 possible answers.

5 0

3 years ago

Patrick has decided to open a simple

Aleonysh [2.5K]

Answer:

9700

lkjhgyfdfdfffffffff nnnnn

4 0

3 years ago