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3 years ago

What is the answer of (4x+8) (2x-4)

Mathematics

2 answers:

andrey2020 [161]3 years ago

8 0

Answer:

8x² - 32

Step-by-step explanation:

(4x + 8) (2x - 4)

Distribute

(4x)(2x - 4) + (8)(2x - 4)

8x² - 16x + 16x - 32

Cancel out 16x

8x² - 32

Hope this was useful to you!

Zielflug [23.3K]3 years ago

4 0

Answer:

Step-by-step explanation:

you can foil this so

(4x × 2x)+ (4x × -4)+ (8 × 2x)+(8×-4)

when simplified, the answer is

8 $x^{2}$ +( -16x )+ 16x +( -32), which when further simplified is

8 $x^{2}$ - 32

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6. It took Todd 9 hours to paint 4 rooms.

Afina-wow [57]

Answer:

5 rooms

Step-by-step explanation:

4 rooms = 9 hours

9 hours = 540 minutes

1 room = 540 ÷ 4 = 135 minutes

60 x 12 = 720 minutes (12 hours)

720 ÷ 135 = 5.33333

5.3333 estimated to nearest whole number = 5

3 0

3 years ago

What is X when 19,695 divided by X-15,605 = 100

Zepler [3.9K]

Step-by-step explanation:

$\frac{19695}{x - 15605} = 100$

$19695 = 100(x - 15605)$

$19695 = 100x - 1560500$

$19695 + 1560500 = 100x$

$15801 95 = 100x$

$\frac{1580195}{100} = x$

$x = 15801.95$

3 0

2 years ago

Drag the numbers below to put them in order from least to greatest: 4 16 1 7 -2 -20

Mariulka [41]

Answer:

Are the 1 and 7 rogether? because if so then -20, -2, 4, 16, 17, if not then -20, -2, 1, 4, 7, 16

7 0

3 years ago

The admission fee for a charity event is $7 for children and $10 for adults. The event was attended by 700 people and the total

Hitman42 [59]

X = 7
y = 10
x + y = 700
7x + 10y = 6400

10x + 10y = 7000
(-) 7x + 10y = 6400
______________
3x = 600
x = 200

200 + y = 700
y = 500

3 0

3 years ago

I need answer Immediately pls!!!!!!

Illusion [34]

Given:

Total number of students = 27

Students who play basketball = 7

Student who play baseball = 18

Students who play neither sports = 7

To find:

The probability the student chosen at randomly from the class plays both basketball and base ball.

Solution:

Let the following events,

A : Student plays basketball

B : Student plays baseball

U : Union set or all students.

Then according to given information,

$n(U)=27$

$n(A)=7$

$n(B)=18$

$n(A'\cap B')=7$

We know that,

$n(A\cup B)=n(U)-n(A'\cap B')$

$n(A\cup B)=27-7$

$n(A\cup B)=20$

Now,

$n(A\cup B)=n(A)+n(B)-n(A\cap B)$

$20=7+18-n(A\cap B)$

$n(A\cap B)=7+18-20$

$n(A\cap B)=25-20$

$n(A\cap B)=5$

It means, the number of students who play both sports is 5.

The probability the student chosen at randomly from the class plays both basketball and base ball is

$\text{Probability}=\dfrac{\text{Number of students who play both sports}}{\text{Total number of students}}$

$\text{Probability}=\dfrac{5}{27}$

Therefore, the required probability is $\dfrac{5}{27}$ .

3 0

3 years ago