4 years ago

Multiply: (2x2 − 5x)(4x2 − 12x + 10)

Mathematics

1 answer:

11Alexandr11 [23.1K]4 years ago

5 0

(2x^2-5x)(4x^2-12x+10) = <span>8x^4 - 44x^3 + 80x^2 - 50x

So, the answer is option C.</span>

You might be interested in

The perimeter of an equilateral triangle is 9 inches more than the perimeter of a square, and the side of the triangle is 6 inch

zimovet [89]

Answer:

9 inches

Step-by-step explanation:

Perimeter of equilateral triangle = 3x

Perimeter of square = 4x

3(x + 6) = 9 + 4x

3x + 18 = 9 + 4x

-x = -9

x = 9

4 0

3 years ago

How many bucketloads would it take to bucket out the world’s oceans? Write your answer in scientific notation.

kodGreya [7K]

Answer: $7\times10^{19} buckets$

Step-by-step explanation:

Given: A cubic kilometer= $10^{15}$ cubic centimeters

The volume of world’s oceans= $1.4\times10^{9}$ cubic kilometers of water.

⇒ The volume of world’s oceans= $1.4\times10^{9}\times10^{15}$ cubic centimeters of water.

Volume of a bucket = 20,000 cubic centimeters of water.

The number of bucket-loads would it take to bucket out the world’s oceans

$n=\frac{\text{volume of ocean}}{\text{volume of bucket}}=\frac{1.4\times10^{9}\times10^{15}}{20000}$

$\Rightarrow\ n=\frac{1.4\times10^{9+15}}{0.2\times10^5}......[a^n\times a^m=a^{m+n}]\\\Rightarrow\ n=7\times10^{24-5}.....[\frac{a^m}{a^n}=a^{m-n}]\\\Rightyarrow\ n=7\times10^{19}$

hence, $7\times10^{19}$ bucketloads would it take to bucket out the world’s oceans.

5 0

3 years ago

Jamal draws a 180-degree straight line on his paper.He draws a line down the middle of the line perpendicular to the first line.

PolarNik [594]

Answer:

I think it will be 90 degree

4 0

4 years ago

What is the 40th term of the sequence below? 14 9 4 -1

pshichka [43]

D = T2 - T1
d = 9 - 14
d = - 5

T40 = 14 + 39(-5)
= 14 - 195
= - 181

3 0

3 years ago

This graph shows the results of 150 people surveyed.

Inga [223]

There is no Graph?
Can you upload it

7 0

3 years ago