The equation y = x2 – 4 + y + 2 = 0 can be solved by completing the square.
What is equation?An equation is a mathematical statement that to express our equal. Is consist of two expression separated by an equal sign and can contain numbers, variables and operators. Equation get be used to solve problems make prediction and describe relationship between different quantities. Equation can be can also be used to represent physical laws and other phenomena.
First, subtract y from both sides of the equation to get x2 - 4 + 2 = y. Then, subtract 2 from both sides of the equation to get x2 - 6 = y. Finally, add 9/4 to both sides of the equation to get (x - 3/2)2 = 9/4 + y.
This equation can be solved by taking the square root of both sides to get x - 3/2 = ±√(9/4 + y). Finally, add 3/2 to both sides of the equation to get x = 3/2 ±√(9/4 + y).
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The domain of y = cot x is all real numbers such that _______.
Answer:
Step-by-step explanation:
x≠ n*π, where n is an integer
because x/π can not be an integer
I need help! ASAP! ITS DUE AT 11:59 PM
Estimate too
Estimate:
9 1\4 - 3 2\3. Word Form: Nine and one - fourth minus three and two - thirds
Estimate them too plss! Ill give brainliest!
Answer:
5 7/12
Step-by-step explanation:
Convert 5.5833333333333
For each sequence, find the first 4 terms and the 10th term.
a) 3n + 4
b) 4n-5
Answer:
see explanation
Step-by-step explanation:
To find the first 4 terms substitute n = 1, 2, 3, 4 into the formula, that is
(a)
a₁ = 3(1) + 4 = 3 + 4 = 7
a₂ = 3(2) + 4 = 6 + 4 = 10
a₃ = 3(3) + 4 = 9 + 4 = 13
a₄ = 3(4) + 4 = 12 + 4 = 16
Similarly substitute n = 10 for tenth term
a₁₀ = 3(10) + 4 = 30 + 4 = 34
(b)
a₁ = 4(1) - 5 = 4 - 5 = - 1
a₂ = 4(2) - 5 = 8 - 5 = 3
a₃ = 4(3) - 5 = 12 - 5 = 7
a₄ = 4(4) - 5 = 16 - 5 = 11, and
a₁₀ = 4(10) - 5 = 40 - 5 = 35
A dump truck pours sand into a container in the shape of a rectangular prism with a square base of length 2 feet. The height, h, of the sand in the container increases at a rate of approximately 8 inches per minute. Create an equation that models the volume, V, of the sand in the container in terms of h, then use the equation to determine the time at which the volume is 64 cubic feet. Note that the volume of a rectangular prism is V=l×w×h, where l, w, and h are the length, width, and height of the prism.
Answer:
I think the answer is 24 minutes!
Step-by-step explanation:
I hope this helps!
Answer:6+89
Step-by-step explanation:439+3947+v=90
Write the equation of the line given a slope of 0 through the point (5, -7)
Answer:
y=-7
Step-by-step explanation:
y-y1=m(x-x1)
y-(-7)=0(x-5)
y+7=0
y=0-7=-7
✨ Easy points if you know how to do slope well ✨
Answer:
I believe it's A
Step-by-step explanation:
Answer:
its y=x
Step-by-step explanation:
× + 2 + 2x + 3 = 4x PLS HELP ME
Answer: 8
Step-by-step explanation:
Answer:
I dont know what your supposed to do but i can tell you that x = 5 because if you simplify the equation you get 3x + 5 = 4x. Using this you can infer that a single x is equivalent to 5 since you need 5 to get from 3x to 4x.
A sports drink bottle contains 16.9 fluid Ounces. Andre drank 80% of the
bottle. How many fluid Ounces did Andre drink?
Answer:
13.52 fluid ounces should be the right answer! :)
Step-by-step explanation:
Andre drank from the bottle 13.52 fluid ounces if he drank 80% of bottle.
What is Percentage?Percentage is defined as the parts of a number in a whole of 100. This is denoted by the symbol '%'.
In other words, percentage can be defined as the ratio expressed as a fraction of 100.
Any number can be expressed as a percentage of another number by dividing the number with the whole of other number and then multiplying with 100.
Given that, fluid contained in a sports bottle = 16.9 fluid ounces.
Andre drank 80% of the fluid contained in the bottle.
80% of the bottle = 80% × 16.9
= (80 / 100) × 16.9
= 0.8 × 16.9
= 13.52
So this is the total fluid ounces Andre drink.
Hence Andre drank 13.52 fluid ounces from the bottle.
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Any consecutive sides of a parallelogram are parallel.
A. Always True
B. Sometimes True
C. Never true
ANSWER:Any consecutive sides of a parallelogram are parallel?
A. Always True is your answer.
What is the slope of the line that passes through the points (-5,-6 ) and (5,1)?
Answer: Slope-intercept form, y=mx+b, of linear equations, emphasizes the slope and the y-intercept of the line.
m(slope)=7/10 or (7,10)
8. Standard to Slope Intercept Form
Put the following equation of a line into slope-intercept
form, simplifying all fractions.
6x + 15y = -15
Answer:
-2/5-1
Step-by-step explanation:
6x+15y=(-15)
subtract both sides by (-6x)
now the equations becomes: 15y=(-6x)-15
divide both sides by 15, since -6 cannot evenly we just leave it as a fraction
Equation becomes y= -6/15x-1
Then simplify it down to y= -2/5x-1
PLEASE HELP!! I WILL GIVE BRAINLIEST TO WHOEVER ANSWERS THESE TWO!
Answer:
Page 1 = D
Page 2 = D
Step-by-step explanation:
Hope that helps!
14 4/9+ 25 1/6+ 7 11/18=
Answer:
47 2/9
hope this help :)
Answer:
47 2/9
Step-by-step explanation:
( 14 + 25 + 7) + ( 4/9 + 1/6 + 11/18)
46 + 11/9
46 + 1 2/9
47 2/9
In a bouquet of flowers, there are 16 irises and 29 sunflowers. Write the ratio of sunflowers to irises in 3 different way
Answer:
29:16
29 To 16
29/16
Solve
S = 2πr(h + r) for h
Answer:
S/2πr-r = h
Step-by-step explanation:
S = 2πr(h + r)
S/2πr = h+r
S/2πr - r = h
9 divided by four as a mixed number
Answer:
2 and 1/4
Step-by-step explanation:
What is the ratio of purple cylinders to total cylinders, there are 7 purple and 1 yellow.
Answer:
7:8
Step-by-step explanation:
There are 7 purple cylinders. There are 8 total cylinders (7 purple and 1 yellow). So the ratio is 7:8
To solve for x in the equation x - 4 = 19, which inverse operation would you
apply? *
O add 4 to both sides
subtract 4 from both sides
add 19 to both sides
O subtract 19 from both sides
1.2. Tim bought 128 sandbags to completely fill a cube-shaped sandbox. Each bag fills a cubic foot in the sandbox. What is the length, in feet, of one of the sides of the sandbox?
A. √128
B. 3√128
c. 128^2
D. 128^3
Answer:
b
Step-by-step explanation:
Answer:
I think the answer is c.
Step-by-step explanation:
hope this helps
i don’t understand.
online school is hard
Answer:
online is harder than
Step-by-step explanation:
school is nice place
PLEASE HELP IT'S TIMED
Order from least to greatest 0, -1.9, -1 4/5, -1/3, and 0.25
Answer:
0.25, 4/5, 1/3, 1.9 and you answer mine please
Answer:
-1.9,-1 4/5, -1/3, 0, .25
Step-by-step explanation:
A sprinkler system uses 800 gallons of water in 5 days. The system uses ___ gallons of water in 1 day
Answer:
160
Step-by-step explanation:
800 gallons in 5 days. The days is the denominator and the gallons are the numerator, whatever you do the the bottom you do to the top, so you divide the denominator by 5 and the numerator by 5 and you get 160 gallons per day. If you want to know how your answer is right, multiply 160 by 5
"Sophia and Rebecca's conversations only."
Answer:
Step-by-step explanation:
Yes
What’s the value of a?
Answer:
a = 69
Step-by-step explanation:
The linear pair equals 180 degrees.
a + 90 + 21 = 180
a + 111 = 180
a = 69
nice!
Answer:
A= 69 degrees
Step-by-step explanation:
if all those angles equal a total of 180 degrees then all you need to do is add the angles your given which in this case is 21 and a 90 degree angle which would equal 111 degrees, then subtract 111 from 180 and that would be the answer to the missing angle, which is 69 degrees.
21 + 90 = 111
180- 111 = 69
a) ¿Cómo varia el volumen de una piramide en relación a su altura si el área de la base no cambia?
Answer:Step-by-step explanation:
Answer:
si cambia su volumen cada vez se pone mas fina la piramide
1 cm
3 cm
3 cm
1 cm
3 cm
4 cm
Find the surface area of the above solid.
What is the positive solution to the equation 3x2 + 31 = 912
A 10.95
B 8.51
8.36
D 7.75
E 4.47
Answer:
E) 4.47
Step-by-step explanation:
3x²+31=91
3x²=91-31
3x²=60
x²=60÷3
x²=20
x=√20
x=4.47
Answer:
4.47
Step-by-step explanation:
the only rational answer for this is 4.47 because once you solve as much as you can, you should end up with a whole number multiplied by a square root. the decimal form of that number is 4.47
A store bought 250 toys at a cost of $24 each. The store sold all the toys at a percent markup of 60 percent. Find the total selling price
Which set of values makes the inequality 1/4x + 2≥0
A. {-8,-4, 0, 4, 8}
O
B. {-12, -8, 0, 4, 8}
o
C. {-20, -16, -12, 0,4}
D. {-20, -16, 0, 16, 20}
Answer:
the answe is A.{-8,-4,0,4,8}
The histogram shows the number of hours volunteers worked one week.
What percent of the volunteers worked fewer than 12 hours