Ask question

Ask question

All categories

3 years ago

15

Answer please! I have been "getting" the correct answer, as far as I know. The answer which I got was 10x^2 - 4x. But I don't se

e how it's incorrect. PLEASE HELP!

1 answer:

GarryVolchara [31]3 years ago

4 0

Answer:

The answer is 10x² - 4x.

Step-by-step explanation:

You have to apply Distributive Law,

$a(m + n) = am + an$

So for this question :

$2x(5x - 2)$

$= 2x(5x) + 2x( - 2)$

$= 10 {x}^{2} - 4x$

You might be interested in

(NEED HELP ASAP) What rule defines the function in each of the following graphs?

QveST [7]

Hey there!!

The graph B is not a function as it doesn't pass the vertical line test, as there are two x values repeating.

We do not want value x repeating, if it does, it is not considered to be a function anymore.

Hope my answer helps!

3 0

3 years ago

Which of the following represents the factorization of trinomial below? 10x^2+11x+3

marusya05 [52]

Answer:

(2x+1)(5x+3)

Step-by-step explanation:

'split the x-term and factorise by grouping

10x2+5x+6x+3←(5x+6x=11x)

5x(2x+1)+3(2x+1)

factor out (2x+1)

(2x+1)(5x+3)

⇒10x2+11x+3=(2x+1)(5x+3)

plz mark me as brainliest if this helped :)

8 0

2 years ago

AnnyKZ [126]

Answer:

bc they are placed the same if one is multiplied by 10. or you could just multiply the tens place and add that to your 100

140=14×10 and 100 and 4 tens is written 140.

3 0

3 years ago

Find the exact length of the altitude drawn to the hypotenuse. do not round. the triangle is not drawn to scale. a triangle with

iren [92.7K]

Using pythagoras theorem,p=√289-81
p=√208

8 0

3 years ago

The side s of a square carpet is measured at 5 ft. Estimate using the Linear Approximation the maximum error in the area A of th

KonstantinChe [14]

Answer:

$0.333 ft^2$

Step-by-step explanation:

We are given that

Side of square carpet,s=5 ft

$\Delta s=0.4 in=\frac{0.4}{12}ft$

1 foot=12 in

We have to find the maximum error in the area of the carpet by using the linear approximation .

Area of square,A= $(side)^2=s^2$

$dA=2sds$

Substitute the values

$dA=2\times 5\times \frac{0.4}{12}$

$dA=0.333ft^2$

Hence, the maximum error in the area of the carpet= $0.333 ft^2$

4 0

2 years ago