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Greeley [361]
3 years ago
15

What number must you add to complete the square x^2+4x=12

Mathematics
2 answers:
Fudgin [204]3 years ago
8 0

Answer:

Step-by-step explanation:

to be honest I really don’t know necause the equation is actually solveable just the way it is

Keith_Richards [23]3 years ago
6 0

Answer:

4

Step-by-step explanation:

The form ax²+bx+c=d to find the number to add you do

(b/2)² so

(4/2)²=

4

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Which value of y below is the solution to the system shown below. A) y=6 B) y=-1 C) y=-4 D) y=8
Grace [21]

Answer:

D

Step-by-step explanation:

given the 2 equations

x + 2y = 27 → (1)

2x + 3y = 46 → (2)

Rearrange (1) expressing x in terms of y by subtracting 2y from both sides

x = 27 - 2y ← substitute into (2)

2(27 - 2y) + 3y = 46

54 - 4y + 3y = 46

54 - y = 46 ( subtract 54 from both sides )

- y = - 8 ( multiply both sides by - 1 )

y = 8 → D

4 0
3 years ago
How many hours would it take to get 100k gold if i make 540 every ten minutes (and if possible teach me how to do this)
Veseljchak [2.6K]

Answer:

Round the 540 to 500 for ease, if you need 100k and have 500 every ten mins, just cross multiply the equation

Step-by-step explanation:

3 0
3 years ago
The base of a prism is a right triangle with a base and height measurement of 12cm and a 5cm. If the volume of the prism is 210c
bezimeni [28]

Answer:

The height is 7 cm

Step-by-step explanation:

210 × 2 = 420

12 × 5 = 60

420 ÷ 60 = 7

6 0
3 years ago
Read 2 more answers
Please can you explain how you got the answers! Thanks
Sedbober [7]
First you have to find the measurement of the entire line,which will be equal x, than plug in in the equation between L and M 
4 0
3 years ago
Read 2 more answers
a traveler has 7 pieces of luggage . how many ways can the traveler select 3 pieces of luggage for a trip
7nadin3 [17]
Well, you could assign a letter to each piece of luggage like so...

A, B, C, D, E, F, G

What you could then do is set it against a table (a configuration table to be precise) with the same letters, and repeat the process again. If the order of these pieces of luggage also has to be taken into account, you'll end up with more configurations.

My answer and workings are below...

35 arrangements without order taken into consideration, because there are 35 ways in which to select 3 objects from the 7 objects.

210 arrangements (35 x 6) when order is taken into consideration.

*There are 6 ways to configure 3 letters.

Alternative way to solve the problem...

Produce Pascal's triangle. If you want to know how many ways in which you can choose 3 objects from 7, select (7 3) in Pascal's triangle which is equal to 35. Now, there are 6 ways in which to configure 3 objects if you are concerned about order.

7 0
3 years ago
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