What kind of roots does a quadratic equation have if the discriminant is 0?
Answer:
If the discriminant is equal to zero, this means that the quadratic equation has two real, identical roots
What is the value of 4C9 ?
A large pool has a faucet to allow water to enter the pool and a drain to allow water to leave the pool.
Each minute, the faucet allows 10 3/4 gallons of water to enter the pool, and the drain allows 12 1/3 gallons to leave the pool.
What is the change in the amount of water in the pool after 112 minutes?
Enter your answer as a simplified mixed number by filling in the boxes.
The change in the amount of water in the pool is the difference between the amount of water that enters and leaves the pool
Change in volume of water in the pool after 112 minutes is [tex]\underline{-117\frac{1}{3}}[/tex] gallons
Reason:
The given parameters are;
The volume volume of entering the pool = 10 3/4 gallons per minute
The volume of water leaving the pool = 12 1/3 gallons per minute
Required:
The change in the amount of water in the pool after 112 minute
Solution:
The volume of water, V₁, that enters the pool in 112 minute is given as follows;
V₁ = 10 3/4 × 112 = 1,204The volume of water, that enters the pool, V₁ = 1,204 gallons
The volume of water, V₂, that leaves the pool in 112 minute is given as follows;
V₂ = 12 1/3 × 112 = 1,381[tex].\overline 3[/tex]The volume of water, that that leaves the pool, V₂ = 1,381[tex].\overline 3[/tex] gallons
The change in the amount of water in the pool after 112 minutes, ΔV, is given as follows;
ΔV = V₁ - V₂
ΔV = 1,204 - 1,381[tex].\overline 3[/tex] = -177[tex].\overline 3[/tex] = -(117 1/3)Change in volume of water in the pool after 112 minutes, ΔV = [tex]\underline{-117\frac{1}{3}}[/tex] gallons
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Ellen,Krista,and Tori decide to buy their Mrs.Hannigan a fabulous pink flamingos purse The cost of the purse is $205 (what a bargain!). Home much money will each person pay if the cost is split equally ?
n/32 = 1/16
a. n=1/2. b. n=4
c. n=2. d. n=512
Hello will name brainliest
Answer:
Step-by-step explanation:
When u look at the graph u get -11,0 as point of B
Answer:
(-3, 8) or (8, -3)
Find the measure of each missing angle
I’ll give BRAINLEST!!
Answer:
angle 4 = 115°[vertically opposite angles]
angle 2+ angle 4=180°[linear pair]
angle 2+ 115 = 180°
angle 2 = 180°-115°
angle 2=65°
angle1+angle2+80°=180°[sum of all angles is 180°]
angle1+65°+80°=180°
angle 1 + 140° = 180°
angle 1=180°-140°
angle1 =40°
angle2= angle5[vertically opposite angles]
angle7+angle5+61°+90°=360°[sum of all angles of quadrilateral is 360°]
angle7+ 65°+ 61° +90°=360°
angle7+ 211°=360°
angle7=360°-211°
angle7=149°
angle7+angle6=180°[linear equation]
149°+angle6=180°
angle6=180°-149°
angle6=31°
angle4+angle6+angle3= 180°[by sum of all angles is 180°]
115°+31+angle3=180°
146°+angle3=180°
angle3=180°-149°
anble3=41°
Evaluate: 17 - |2 - y| × 2 if y = -2
Answer:
9
Step-by-step explanation:
17 - |2 - y| × 2
17 - |2 - (-2)| × 2
17 - |2 +2| × 2
17 - |4| × 2
17 - 4 × 2
17 - 8
9
Instructions-Solve the system of equations. Type in all points of intersection for the two functions and round to the nearest tenth if necessary.
-
f(x) = 5x + 25 - 1
8(x) - - 2x-3
Answer:
f(x)=5x+25-1
8(x)- -2x-3
=30-1
=8x+6x
=29+14x
43x
The point of intersection of the two functions is (3, 27).
The system of equations is:
f(x) = 5x + 25 - 1 = 5x + 24
g(x) = 2x - 3
To solve this system, we can use the elimination method. We can eliminate the x-term by adding the two equations together.
f(x) + g(x) = 5x + 24 + 2x - 3 = 7x + 21
Solving for x, we get:
x = 21/7 = 3
Now that we know the value of x, we can plug it back into either equation to find the value of y. Let's use the equation for f(x).
f(x) = 5x + 24
f(3) = 5(3) + 24 = 27
Therefore, the point of intersection of the two functions is (3, 27).
To the nearest tenth, the point of intersection is (3.0, 27.0).
The point of intersection of the two functions is (3, 27).
The system of equations is:
f(x) = 5x + 25 - 1 = 5x + 24
g(x) = 2x - 3
To solve this system, we can use the elimination method. We can eliminate the x-term by adding the two equations together.
f(x) + g(x) = 5x + 24 + 2x - 3 = 7x + 21
Solving for x, we get:
x = 21/7 = 3
Now that we know the value of x, we can plug it back into either equation to find the value of y. Let's use the equation for f(x).
f(x) = 5x + 24
f(3) = 5(3) + 24 = 27
Therefore, the point of intersection of the two functions is (3, 27).
To the nearest tenth, the point of intersection is (3.0, 27.0)
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x+4:-x-4
What does x equal to?
Answer:
casa. Completa las oraciones con el pronombre de objeto directo correcto, según el contexto.
1. Tu ropa está sucia. ¿Por qué no ____ lavas?
2. Ellos tienen muchos libros. ____ tienen en la estantería del despacho.
3. La casa de mi mamá tiene muchas ventanas, pero no ______ abre todos los días.
4. Profesora, Ud. debe usar la cochera. ¿ ______ve allí?
5. ¿Quieres ir al cine con nosotros? _____ llamamos antes de salir.
What is the missing value?
Answer:
1
Step-by-step explanation:
1 : -7
2 : -5 ( -7 + 2 )
3 : -3 ( -5 + 2 )
4 : -1 ( -3 + 2 )
5 : 1 ( -1 + 2 )
Hopefully this helps!
Brainliest please?
Find the value of the x.
Step-by-step explanation:
By angle sum property
7x-41+5x-12+2x+9 = 180
14x -44 =180
14x =224
x= 224/14
x= 16°
Answer:
thanks for this question as I also wanted it
Step-by-step explanation:
may I know in which grade are you
If each person paid an equal amount, who would save the most money? Explain your reasoning using at least two complete sentences
what does this q equal
Answer:
30 degrees
Step-by-step explanation:
Since all triangles' angles add up to 180 degrees, you can add the sum of the angles you already know and subtract it from 180.
126+24=150
180-150=30
so angle Q = 30 degrees
Simplify
x + x + x + y X y X y
Answer:
3x+y³
Step-by-step explanation:
x+x+x+y×y×y3x+y³luigi has 9 more books than Mario. Luigi has 52 books . how many books does Mario have.
Answer:
Mario has 43 books.
Step-by-step explanation:
Subtract the 52 books by the 9 books (52 - 9), and you will get 42 as your answer.
A scuba diver descends from the surface at a rate of 38 feet per minute.
What is the position of the scuba diver relative to the surface after diving for 3 minutes?
Answer:
114 feet
Step-by-step explanation:
Since the rate per minute is 38 ft per minute. You multiply that by three and get your rate for 3 minutes.
Answer:
114
Step-by-step explanation:
38
38
+38
114
Hope this helps!
Brainliest pls
Have a great day!
If Michael made 12 shots out of 18 what is the percentage of shots made by him?
Answer:
At least 66%
Step-by-step explanation:
65% of 18 is 11.7
67% of 18 is 12.06
Therefore, at least 66% of the shots where made by Michael.
Step-by-step explanation:
100% = 18
x% = 12
x% = 100% / 100 × x
so,
18/100 × x = 12
18x = 1200
x = 1200/18 = 200/3 ≈ 66.66666...
so, he made about 67% of the shots.
What are the combining like terms ?
Answer:
2r+1
Step-by-step explanation:
-5r-8+9+7r= (-5r+7r)+(-8+9)
Solve:
2r+1
Hope this helps!
Answer:
[tex]2r+1[/tex]
Step-by-step explanation:
[tex]-5r-8+9+7r[/tex]
Combine like terms:
[tex]-5r+7r-8+9[/tex][tex]-8+9=1[/tex][tex]-5r+7r=2r[/tex][tex]2r+1[/tex]________________________
Need help ASAP! Directions in picture;)
Answer:
x=94/5
Step-by-step explanation:
10x-8=180
10x=188
x=188/180
x=94/5
Q. Which of these represents stope-intercept form of a linear equation?
answer choices
A)Ax+By=c
B)y-yı = m-x)
C)y=kx
D)y=mx + b
Answer:
D
Step-by-step explanation:
this is so easy just plug the question in
Answer:
D.y= mx + b
Step-by-step explanation:
Slope-intercept is a specific form of linear equations. It has the following general structure
y= mx + b
Here, m can be any two real numbers. For example, these are linear equations in slope-intercept form:
y=2x+1
y=-3x+2.7y
y=10-100x
On the other hand, these linear equations are not in slope-intercept form:
2x+3y=5
y-3=2(x-1)y−3=2(x−1)
x=4y−7
Slope-intercept is the most prominent form of linear equations
Please help!! BRAINLIEST to correct answer!!
A family drives 412 miles in 110 of an hour. What is their rate of speed in miles per hour?
MPH is the ratio Miles/hour
412=miles
110=hours
412/110 = 3.745 with 45 repeated
hopefully i got this right, the answer seems wrong to me.
Answer:
110 per hour
Step-by-step explanation:
ies xd
can someone help me with this question
Answer:
The answer is D, because once you use SADMEP to reduce and reverse the sign for a negative, you get that anwer.
Step-by-step explanation:
MARK BRAINLIEST PLEASE!
Pablo can wash 6 cars in 40 minutes at this rate how many cars can Pablo wash in 4 hours
Answer:
16
Step-by-step explanation:
convert 40 minutes to hours
[tex] \frac{40 \: minutes}{1} \times \frac{1 \: hour}{60 \: minutes} = \frac{40}{60} = \frac{2}{3} hour[/tex]
multiply to find the number of cars per hour
[tex] \frac{2}{3} \times \frac{6}{1} = \frac{12}{3} = 4 \: cars \: per \: hour[/tex]
multiply again
[tex]4 \times 4 = 16[/tex]
A taxi charges a flat rate of $1.75, plus an additional $0.65 per mile. If Erica has at most $10 to spend on the cab ride, how far could she travel? Write an inequality expression that represents the situation and solve! Explain your reasoning! You can copy/paste the needed symbols as needed: ≥ ≤
Answer:
The inequality expression would be 1.75+0.65x ≥10
She would be able to ride ~12.7 miles or just 12 miles rounding down.
Step-by-step explanation:
Following mx+b, the m value would be 0.65 because it is added per mile.
The 1.75 would be the b value because it is the starting value.
So the equation would look like 1.75+0.65x. To know if the 10 value would be less than or more than, we have to know if 10 is the limit value or starting value. Because 10 is our limit value, we will use greater than or equal to.
To know how many miles Erica could travel, we would have to subtract 1.75
from 10. We would get 8.25. We would then divide 8.25 by 0.65. so the number of miles she can travel is ~12.7 miles or just 12 miles rounding down.
Which numbers are perfect squares: 64, 15, 26, 100
Answer:
15
Step-by-step explanation:
Answer:
64 and 100 are perfect square roots
Step-by-step explanation:
Write 10 9 as a decimal. Round to the nearest thousandth if necessary.
Answer:
If you mean 10/9 then the answer should be 1.1 repeating itself
Step-by-step explanation:
Answer:
1.111
Step-by-step explanation:
10/9 = 1.111
( i rounded 10/9 to a decimal)
am not 100% about this but hope it help
I NEED SOME HELP! Please? Lines a and b lie in the standard (x,y) coordinate plane. An equation for line a is y = 0.15x + 5000. The slope of line b is 0.2 greater than the slope of line a. What is the slope of line b?
0.35
0.05
0.015
3.0
500
In the standard (x,y) coordinate plane, which of the following lines are perpendicular to the line 2y = 3x + 1?
y = - 2/3x + 3
y = -3/2x - 1
y = 2/3x - 1
y = 3/2x + 2
y = 2/3x + 1
a. Just add 0.2 to 0.15 in equation a. y = mx + b shows that m is the slope. Answer would be 0.35.
b. 2y = 3x + 1
y = 3x/2 + 1/2
Perpendicular = negative reciprocal of original function's slope.
3/2 -> -2/3x.
Only the first one fulfills the equation, thus:
-2/3x + 3.
(1) The slope of line b is 0.35. The correct option is A.
(2) The equation perpendicular to the line y = - 2/3x + 3. The correct option is A.
What is an equation of the line?An equation of the line is defined as a linear equation having a degree of one. The equation of the line contains two variables x and y. And the third parameter is the slope of the line which represents the elevation of the line.
The general form of the equation of the line:-
y = mx + c
m = slope
c = y-intercept
Slope = ( y₂ - y₁ ) / ( x₂ - x₁ )
(1) An equation for line a is y = 0.15x + 5000. The slope of line b is 0.2 greater than the slope of the line.
The slope of line b,
b = 0.2 + a
b = 0.2 + 0.15
b = 0.35
(2) The equation of the line perpendicular to the line 2y = 3x + 1 is calculated as:-
The slope of the line perpendicular to the other line is the opposite reciprocal. The equation will be,
y = -2/3x + 3
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In the proportion 2:3 = 16:24 ,the product of the two middle values is __.
The product of the two outside values is __.
Answer:
48 and 48
Step-by-step explanation:
product means multiplication
two middle values are 3 and 16
3*16 = 48
two outside values are 2 and 24
2*24 = 48
