3. Describe and correct the error
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
Question 4 (5 points)
Determine the quotient of (22.8 x 10-3) = (5.7 x 10-6). Write your answer in
scientific notation.
A) 4 x 10-6
B) 4 x 10-9
C) 4 x 10-3
X
OD 4 x 10
X
Right answer will get brainlst
Answer:
b
Step-by-step explanation:
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)
To learn more about functions here:
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Which graph below is proportional and how do you know?
Answer:
both
Step-by-step explanation:
each graph is seperate but equal
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!
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?
Plz help! A,B,C OR D
Answer:
c
Step-by-step explanation:
Answer:
Option DStep-by-step explanation:
All steps correct apart from the last one.
The student worked out the value of b = 4.4 but when finalizing the equation he subtracted 4.4 instead of adding:
y = -2x + 4.4 ⇒ correcty = -2x - 4.4 ⇒ wrongCorrect answer choice is D
You save $35 a week for a year. How much do you have at the
end of the year? (Hint: Use 52 weeks
please help
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:
Simplify
x + x + x + y X y X y
Answer:
3x+y³
Step-by-step explanation:
x+x+x+y×y×y3x+y³Find 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 <1 and <2 are complementary angles, and m<1 = 74", find m<2
what’s the answer?
Answer:
m<2=16
Step-by-step explanation:
Please help!! BRAINLIEST to correct answer!!
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
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
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]________________________
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)
luigi 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.
Please help have to turn this in 20 minutes
Answer:
(-1,-5)
Step-by-step explanation:
Graph both lines and find the intersection.
Miguel runs 5 miles in 38 minutes. At the same rate, how many miles would he run in 57 minutes?
7,5 miles
Step-by-step explanation:
5/x = 38/57
38x = 5 × 57
38x = 285
x = 285/38
x = 7,5 miles
What is the value of 4C9 ?
Aiko spends 2.5 hours baking croissants for a community center bake sale. She bakes the 90 croissants in 5 batches. Determine the number of batches Aiko baked per hour
Determine what is the independent and dependent.
Answer:
5/2.5 is 2. Airó makes 2 batches in an hour.
Step-by-step explanation:
i think..
Find the time based on the information given.
The time is ___ hours.
Time = Rate ÷ Distance
= 140.9649 mph ÷ 500 miles
= 0.28 hours
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
If each person paid an equal amount, who would save the most money? Explain your reasoning using at least two complete sentences
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°
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.
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
Learn more here:
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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.
