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7nadin3 [17]
4 years ago
15

X ​2 ​​ +y ​2 ​​ +4x−5=0 standard equation Really need help I’m confused

Mathematics
2 answers:
Firdavs [7]4 years ago
4 0
I used the completing the square method to get the (x+2)^2. The final line is in standard form.

Zina [86]4 years ago
3 0
X2 plus Y2 plus 4X -5 equals zero security question
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Erin recycles milk bottles, soda cans, and newspapers. If the following items are in the trash bin, what percent of the items ca
MakcuM [25]

Answer:

recyclble materials include Milk bottles, news papaers and soda cans

the rest is compost

20 items is the total

13 are recycble

13/20 as a decimal is 0.65

multiply by 100

and answer is

<h2><u><em>B.65%</em></u></h2>

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
HEELLLPPP ME?!?!?!? ANYONE?
tatyana61 [14]
I hope this helps you

5 0
4 years ago
Please help me out please ..
serg [7]

Answer:

x = 466.7 ft

Step-by-step explanation:

The lower angle in the right triangle = 31° ( alternate angle )

Using the cosine ratio in the right triangle, with hypotenuse x

cos31° = \frac{adjacent}{hypotenuse} = \frac{400}{x}

Multiply both sides by x

x × cos31° = 400 ( divide both sides by cos31° )

x = \frac{400}{cos31} ≈ 466.7

7 0
3 years ago
Read 2 more answers
I have to pay my friend $1 increased by 50% each day for 20 days. How much do I have to pay him at the end of the 20 days.
Radda [10]

So for this, you'll be using an exponential equation, which is y=ab^x (a = initial value, b = growth/decay).

Since you start off paying your friend $1, that will be your initial value. And since this is a 50% increase, you are to add 1 and 0.5 together (50% in decimal form), which is 1.5. That will be your b variable. And since # of days is the independent variable, that will be your x variable.

Using the previous info, this is our equation: y = 1(1.5)^20 . From here we can solve for the total cost (y).

Firstly, solve 1.5^20: y = 1(3325.26)

Next, multiply everything on the right side of the equation, and your answer will be (rounded to the hundreths): y = 3325.26

In context, at the end of the 20 days, you have to pay your friend $3325.26.

5 0
3 years ago
Translate this sentence into an equation.
lyudmila [28]

Answer:

5 x m = 55

Step-by-step explanation:

This is because 55 is the product and this means multiplication and 5 x something is 55

4 0
2 years ago
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