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klio [65]
3 years ago
9

What number would you add to the equation below to complete the square?x^2 + 4x = 0

Mathematics
1 answer:
masya89 [10]3 years ago
7 0
You should add 4.

You should always add the squareof the p value. The p value is equivalent to half of the b value, or two, since four divided by two is two.
Then square that, so two times two is four.
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The difference of two odd numbers is always an odd number ? True or false
yuradex [85]
Let’s say we have 1 and 3.

3-1=2

Thats an even number, so false, but lets check some more just to be sure:

27-3=24 (even)

13-5=8 (even)

75-3=72 (even)

So, the answer is false.
6 0
3 years ago
Matthew and Andrew leave an intersection at
cestrela7 [59]
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3 0
3 years ago
What is the volume of the triangular prism shown below ?
jekas [21]

Answer:

B

Step-by-step explanation:

The volume (V) of a triangular prism is

V = area of triangular end × length

area of Δ = \frac{1}{2} bh

where b is the base and h the perpendicular height

here b = 8 and h = 5, so

area = 0.5 × 8 × 5 = 20 units²

the length of the prism is 10, hence

V = 20 × 10 = 200 units³

7 0
3 years ago
Read 2 more answers
A carpet cleaning business has 100 customers when they charge $125 for a cleaning. Research shows that every $5 reduction in pri
Dennis_Churaev [7]
Since a $5 decrease in price increases customers by 20 we can say that we have two points:

(125,100) and (120,120), from these we can find the slope or rate of change of customers as a function of price...

m=20/-5

m=-4

m=-4

c(p)=-4p+b, now we can use (125,100) to solve for b

100=-4(125)+b

100=-500+b

600=b, so our number of customers as a function of price is:

c(p)=600-4p

Revenue will simply be the number of customers times the price charged per customer...or p*c(p):

r(p)=600p-4p^2

We can find price that creates maximum revenue by finding when the derivative is equal to zero...

dr/dp=600-8p

dr/dp=0 only when

0=600-8p

8p=600

p=75

So the price that maximizes revenue is $75.

3 0
3 years ago
Read 2 more answers
Help me out with this^^
sergij07 [2.7K]

Answer: 76 m^2

Step-by-step explanation:

A=\frac{4+15}{2}*8 = 76\;m^2

3 0
3 years ago
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