3 years ago

4[2x – 3.1(x2 + 2x) + 7.2x]

2 answers:

3 0

The answer to this question is 4 (.2 x - 3.1 (x2 + 2 x)). Try using Wolfram for future questions - it's a sort-of calculator like website.

mixas84 [53]3 years ago

3 0

4[2x – 3.1(x^2 + 2x) + 7.2x]
= 4[2x – 3.1x^2 - 6.2x + 7.2x]
= 4[- 3.1x^2 + 3x]
= -12.4x^2 + 12x

You might be interested in

Divide 5x2 − 7x − 6 by x − 2.

Luba_88 [7]

Answer:

5x+3

Step-by-step explanation:

3 0

3 years ago

A storage gives every 42nd customer a $42 gift certificate.Every 30th customer gets a $30 gift certificate. What number customer

arlik [135]

Answer:

Step-by-step explanation:

let me know if this helps!

5 0

3 years ago

Read 2 more answers

. In RST, R is 20° more than two times S, and S = T. Find the measure of each angle. -

ziro4ka [17]

∠R = 100° , ∠S = 40° and ∠T = 40°

Step-by-step explanation:

In a triangle, sum of all the angles in a triangle is equal to 180 degrees.

In Δ RST,

∠R + ∠S + ∠T = 180°

It is given that,

∠S = ∠T

∠R = 2∠S + 20

So plugin these values in the above equation, we will get,

2∠S + 20 + ∠S+ ∠S = 180

4∠S = 180 - 20

∠S = 160/ 4 = 40

∠R = 2× 40 + 20 = 80 + 20 = 100°

∠S = ∠T = 40°

7 0

4 years ago

The hu family goes out for lunch and the price of the meal is $45 the sales tax on the meals is 6% and the family also leaves a

kolbaska11 [484]

45* .06 = 2.7
45* .2= 9
45+2.7+9= 56.7

8 0

3 years ago

Read 2 more answers

Jason builds doghouses for a pet store. Each doghouse is a wooden structure with a rectangular base that has an area of 21 squar

il63 [147K]

Answer:

5 remainder 2

Step-by-step explanation:

divide

7 0

3 years ago

Read 2 more answers