Answer
50 miles:) I'm positive but there may be a chance it's 200
7) 4r^2- 12r + 5=0 in quadratic form
Answer:
(2r-1)(2r-5)
Step-by-step explanation:
4r^2-10r-2r+5=0
2r(2r-5)-(2r-5)
(2r-1)(2r-5)
Alina can blow 48 balloons in 16 minutes. What is the unit rate of blowing per minute?
Answer:
3 balloon
Step-by-step explanation:
48 divide by 16
PLZ PLZ PLZ ANSWER THIS!!!!
Answer:
a.
Step-by-step explanation:
girls 60/50
boys 40/50
40/50 is 10
Solve the system.
3x + 2y + 4z = 11
2x – y + 3z = 4
5x – 3y + 5z = -1
Enter your answer as an ordered triple.
Someone help please!!
Answer: (x, y, z) = (-3, 2, 4)
In other words, x = -3, y = 2 and z = 4.
You'll enter the number only into each box.
===============================================================
Explanation:
There are a few routes we can take to solve this. I'll use substitution.
First let's isolate y in the second equation.
2x - y + 3z = 4
2x + 3z = 4+y
4+y = 2x+3z
y = 2x+3z-4
This is then plugged into the first equation
3x+2y+4z = 11
3x+2( y )+4z = 11
3x+2( 2x+3z-4)+4z = 11 .... replace y with 2x+3z-4; since y = 2x+3z-4
3x+4x+6z-8+4z =11
7x+10z-8 = 11
7x+10z = 11+8
7x+10z = 19 .... we'll call this equation (4) and come back to this later
--------------------------------------
Move onto the third equation (of the original equations given)
Plug in y = 2x+3z-4
5x - 3y + 5z = -1
5x - 3( y ) + 5z = -1
5x - 3( 2x+3z-4 ) + 5z = -1
5x - 6x - 9z + 12 + 5z = -1
-x - 4z + 12 = -1
-x - 4z = -1-12
-x - 4z = -13 ..... let's call this equation (5)
--------------------------------------
To recap, we found equation (4) and equation (5) to be
7x+10z = 19-x - 4z = -13We can then solve for x in equation (5) like so
-x - 4z = -13
-x = -13 + 4z
-x = 4z - 13
x = -(4z - 13)
x = -4z + 13
This is then plugged into equation (4)
7x+10z = 19
7(-4z+13)+10z = 19 .... note how we now have one variable
-28z+91+10z = 19
-18z+91 = 19
-18z = 19-91
-18z = -72
z = -72/(-18)
z = 4
We can use this value of z to find x
x = -4z+13
x = -4(4)+13
x = -16+13
x = -3
Use the values of x and z to find y. We'll revisit the first equation in which we isolated y
y = 2x+3z-4
y = 2(-3)+3(4)-4
y = -6+12-4
y = 6-4
y = 2
So overall, the solution to this system is (x, y, z) = (-3, 2, 4)
-------------------------------
Checking the answer:
We'll replace x,y,z with the values we found.
In the first equation, 3x+2y+4z = 11 becomes 3(-3)+2(2)+4(4) = 11 and that simplifies to 11 = 11. In other words, the expression 3(-3)+2(2)+4(4) turns into 11. This confirms the first equation.Repeat the same idea for the second equation. We have 2x-y+3z=4 turn into 2(-3)-2+3(4) = 4 and that simplifies to 4 = 4. The answer is verified here. The third equation 5x-3y+5z = -1 becomes 5(-3)-3(2)+5(4) = -1 which simplifies to -1 = -1. We get a true equation here as well.Since all three equations are true when (x, y, z) = (-3, 2, 4), this verifies the answer completely. This is the only solution to the system. The system is independent and consistent.
Write an exponential function whose graph passes through the points (0,-2) and (2,-50)
Answer:
first sub in (0,-2) to get
-2 = ab^0, but b^0 = 1
so a=-2
so far we have
y = -2b^x
now use the other point (2,-50)
-50 = -2(b^2)
b^2 = 25
b= ±5
however in exponentional equations the base is usually positve, so now you have
y = -2(5^x)
sub in x=-2 and you got it.
Step-by-step explanation:
hope it helps..
2.
What is the slope of the line whose equation is
y = 2x - 102
A
B. 2
C. 5
D. - 10
Answer:
2
Step-by-step explanation:
y=mx + b where m is the slope.
m = 2 in this instance.
So the slope is 2.
Answer: btw is B
Step-by-step explanation:
What is the answer to -1 3/8 ÷ (-1 4/7) ??
]0.875 hope this helps
Answer: 7/8
Step-by-step explanation:
keep, change, flip and it going to be a positive because both are them are negative
Can you simply these fractions?
Answer:
2/7
3/4
2/3
1/2
1/10
5/7
3/8
1/9
2/5
1/5
tan(A+B)=tanA+tanB/1—tanAtanB
The question is not correct.
if m<1=53° what is m<3
Answer:
its 159
Step-by-step explanation:
Which is not a reactant needed for producing food in a green plant?
A. Carbon Dioxide
B. Oxygen
C. Water
Answer:
B. Oxygen
Hope you got your answer! ☺️
The reactant not needed for producing food in a green plant is
Oxygen.
Option B is the correct answer.
What are reactants?Reactants are the elements in a process of production that helps in the process of production.
We have,
The process of producing food in a green plant are:
Plants take carbon dioxide, water, and sunlight from their surroundings to make their own food.
This process is called photosynthesis.
Oxygen is the waste product released during this process.
Thus,
Oxygen is not a reactant needed for producing food in a green plant.
Learn more about reactants in plants here:
https://brainly.com/question/16419464
#SPJ6
a 3 lb bag of apples for $2.99 or a 5 lb bag of apples for $4.99
Answer:
theyre the same
Step-by-step explanation:
if we round 2.99 to 3.00 and 4.99 to 5.00, than theyre both $1 per pound
(Please help)There are 16 cups in a gallon. The equation g = 1/16c gives the number of gallons in terms of the number of cups. Write another equation for this situation, giving the
number of cups in terms of the number of gallons:
C=
Answer:
c = 16g
Step-by-step explanation:
g = 1/16 c
Multiply both sides by 16.
16g = c
c = 16g
Answer:
c = 16g
Step-by-step explanation:
g=1/16c
This is an algebric equation that requires you to multiply both sides by 16.
g × 16 = 1/16c × 16
16g = c
HEEEEELLLLPPPP
write a short explanation of why the distance formula works and include a discussion of why either point can be point 1 or point 2
Answer:
Finding the distance between two distinct points on a plane is the same as finding the hypotenuse of a right triangle. From this perspective, the distance formula states that the distance of two distinct points on a plane is equal to the square root of the sum of the square of the rise and run.
I can not Put Out The Points So Im sorry.
PLEASE HELP ME!!PLEASE HELP ME!!!!!
Answer:
The actual dimensions would be 3.375 feet by 3.5 feet. The area of the room would be 11.8 square feet.
Step-by-step explanation:
Solve for x
4 - ( 2x - 2) + 3x = 4(x + 5) - 3(x-2)-10
Step-by-step explanation:
4 + x + 3x = 4 ( 5x ) - 3 ( x ) - 10
4 + x + 3x = 4 + 5x - 3 + x - 10
x + 3x + 5x + x = 4 + 4 - 3 - 10
10x = 21
10x % 10 = 21 % 10
x = 2,1
can somebody help me please
PLSSSS HELPPPPP ASAPPPP
Answer:
b
Step-by-step explanation:
Da los resultados de las siguientes multiplicaciones de expresiones algebraicas:
1) 2a^2 por 3a=
2) -5x^2 por 2xy=
3) 2m (4m - 3)=
4) (3xy - 2) por ( 5x^2 + 4)=
5) 2a^2 por 3a^3=
6) - xy^2 por -5mx^4y^3=
7) 3a^2b por -4b^2x
Porfa ame urge
Answer:
no se tu dime xd jajajaajajajajajajajsjaa ahahahahahahahahsidigfue
She buys an iPhone for $700. What is Macey’s account balance now?
Answer:
-$700
Step-by-step explanation:
Since there was no question, this is what I came to.
100 points! PLEASE ANSWER!
Write a system of equations or inequalities (whichever is most appropriate for the given context) for the scenario below. Be sure to precisely define the variables.
YOU DO NOT NEED TO SOLVE THE SYSTEM! JUST WRITE ONE!
Scenario:
Charlie the Chocolatier mixed chocolate chips and pretzels to create 36 pounds of his holiday blend that sells for $6.00 per pound. The chocolate chips cost $7.00 per pound and the pretzels cost $4.00 per pound. How many pounds of each did he use?
Answer:
x + y = 36 (1)
7x + 4y = 216 (2)
Step-by-step explanation:
Quanrity of Holiday blend = 36 pounds
Cost per pound of the blend = $6.00
Cost of chocolate chips = $7.00 per pound
Cost of pretzels = $4.00 per pound
Let
Pounds of chocolate chips = x
Pounds of pretzels = y
x + y = 36 (1)
7x + 4y = 36 × $6.00
7x + 4y = 216 (2)
The system of equation is
x + y = 36 (1)
7x + 4y = 216 (2)
Hello im in 8th grade and I need to get my grades up so anyone know the answer to
-12 minus 12x = 36
work also needs to be shown if possible thank you
Answer:
x = 3
Step-by-step explanation:
12x = 36
simply 12 will go to the other side and switches to the opposite sign for example + will be -
× will br ÷
so 36 ÷ 12 =3
x = 3
Provide
an appropriate response.
9) knight may win a tournament. He may also fail to win the love of his lady. Are these events
overlapping? Why or why not?
A) Yes, because not all ladies love all winners
B) No, because all ladies love all winners
C) Yes, because some ladies love winners
No, because not all ladies love all winners
What’s the rate of -5x - 6
Answer:
30
Step-by-step explanation:
Mrs. Lawton has a bank balance of $72 at the start of the month. On the 3rd of the month he withdrew $20. Then on the 8th, he withdrew 5 times the amount he withdrew on the 3rd.
1. What is Mrs. Lawton’s bank balance after the 2 withdrawals?
2. How much does Mrs. Lawton need to deposit into her account to give an exact balance of $200?
Answer:
1. Answer -48$
72-20 = 52
20 * 5 = 100
52 - 100= -48
2. 248$
-48 + 248 = 200
Step-by-step explanation:
hope this helps lovely
can you help me graph -3y<2x+9
Answer:
Step-by-step explanation:
HELPPPPPPPPPPPPPPP!! I WILL MARK YOU THE BRAINLIEST!!!! PLEASE IM REALLY STRUGGLING.
Answer:
b
Step-by-step explanation:
Need help ASAP please HELP HELP HELPPPPP
Answer:
Step-by-step explanation:
Answer:
help i help you
Step-by-step explanation:
where are the ansewrs at
please help this is so important and i need it now
Angle B will be 23 degrees
bs ng to the top left of the most popular c.hatrooms trooms aren't for the best in the United Arab Republic of Ireland in the United Arab Republic in the same time the error occurred to him in a few years later
Step-by-step explanation:
Against the law is a healthy lifestyle of the world of difference between the two of the most important thing is that the only thing we will not...❤️❤️
What is the perimeter of the composite figure?
Answer: 96 cm
Step-by-step explanation:
The perimeter is the combined sum of the sides.
So 18 + 22 + 3 + 8 + 6 + 15 = 72
To find the 2 missing sides we use the information we already have.
On the top, we can see 18 is overall the largest line from the missing side.
So we'll need to subtract something from 18.
15 - 8 = 7 ( Inferencing )
18 - 7 = 11 ( length of the top missing side )
22 - 9 = 13
11 + 13 + 72 = 96 cm
Answer: The perimeter is 85 cm
Step-by-step explanation:
To find the perimeter you will need to add the distance around the shape.
But there seem to be one missing side .
To find that missing side we will have to add 3cm and 6 cm then subtract it from 22.
3 + 6 = 9
22 - 9 = 13
Now add the distance around the shape plus the 13.
22 + 15 + 6 + 8 + 13 + 3 + 18 = 85