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leonid [27]
2 years ago
7

15. ¿Cuál es ol rosultado de 2x(x - 1)?

Mathematics
2 answers:
castortr0y [4]2 years ago
6 0
What is this in english??
professor190 [17]2 years ago
5 0
<h2>¡Hola! </h2>

<h2>Explicación paso a paso Espero que te ayude</h2>

2x(x - 1) \\  \\  {2x}^{2}  - 2x

<h2>Espero que te ayude </h2>
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Marry Allen baked 15 cupcakes and her children ate 2/3 of them. How many cupcakes did they eat?
ehidna [41]

Answer:

10 were eaten

Step-by-step explanation:

If we have 15 cupcakes and 2/3 of them were eaten, we multiply 15 times 2/3

15*2/3

12*2 = 30

30/3 = 10

10 of the cupcakes were eaten

3 0
3 years ago
03,
Nataly_w [17]

Answer:

x = 5

Step-by-step explanation:

(7x + 16) = 90 - 39

7x + 16 = 51

7x = 51 - 16 = 35

x = 5

6 0
2 years ago
Read 2 more answers
I need help with my math
Nat2105 [25]

Answer:

Part A. C=9

Part B. (w+3)² =139

Part C. w = 8.8 inch

Step-by-step explanation:

Given from the question length of the the picture = (2w+12) inches

Width of the picture = w inches

Area of the picture = 260 inch²

Part A. Area of the picture with the given dimensions= w×(2w+12)

Or w(2w+12) = 260

2w²+12w = 260

2(w²+6w) = 2×(130)

w²+6w = 130

Or w²+6w +9 = 130+9 ⇒ which is in the form of w²+6w+c = 130+c

Therefore for c = 9 we will get a perfect square trinomial.

Part B. As we have seen the equation in part A.

As required equation will be (w+3)²=139

Part C. Since (w+3)² = 139

Then by taking under root on both the sides of the equation

(w+3) =√139 = 11.8

(w+3)-3=11.8-3

w = 8.8 inch

3 0
3 years ago
4. A video club costs $20 to join. Each video that is rented costs $2.25. Let v represent the number of videos.
shepuryov [24]

Answer:

B.

Step-by-step explanation:

$2.25 is the cost of each video that is rented, so $2.25 times v (or 2.25v) represents the cost of 'v' videos.

$20 is the constant, as it costs $20 to join the club. Since this doesn't change, it is the constant.

So, we would have the equation:

f(v) = 2.25v + 20

f(v) is the total cost.

B is your answer because it is the only one with the correct equation.

Hope this helps!

8 0
2 years ago
Just once i would like math to solve it's own problems,<br> i ain't no therapist.
Artyom0805 [142]

Answer:

brainly.com/question/22779054 PLEASE HELP ME

Step-by-step explanation:

5 0
3 years ago
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