Need help ASAP
Thanks+ BRAINLIST only for correct answers (the answer negative is wrong)
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Related Questions
Need help with questions and will give brainest to good answers. Bad answers or jokes will be reported thanksssssss
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Answer:
3, 10, -2/3
Step-by-step explanation:
I don't speak spanish, so I hope i did this right.
Problem 1
set equal to each other
2x+1=x+4
-4 -4
2x-3=x
-2x -2x
-3=-x
times -1 to get a positive x
3=x
Problem 2
repeat steps
4x-5=3x+5
+5 +5
4x=3x+10
-3x -3x
x=10
Problem 3
repeat steps
x=4x+2
-4x -4x
-3x=2
divide
x=- 2/3
to find the y's, go back and plug in
Prob 1: y=(3+4) =7
Prob 2: y=[3(10)+5] =35
Prob 3: y=(-2/3) =-2/3
Answer:
1.)
y = 2x + 1
y = x + 4
Substitute
2x + 1 = x + 4
Subtract 1 on both sides
2x + 1 - 1 = x + 4 - 1
2x = x + 3
Subtract x on both sides
2x - x = x - x + 3
x = 3
Now that we have x we can use that for finding y
y = x + 4
y = 3 + 4
y = 7
x = 3
y = 4
( 3, 4 )
__________________________________________________________
2.)
y = 4x - 5
y = 3x + 5
Substitute
4x - 5 = 3x + 5
Add 5 on both sides
4x - 5 + 5 = 3x + 5 + 5
4x = 3x + 10
Subtract 3x on both sides
4x - 3x = 3x - 3x + 10
x = 10
Now that we have x, we can use that to find y
y = 3x + 5
y = 3 (10) + 5
y = 30 + 5
y = 35
x = 10
y = 35
( 10, 35)
__________________________________________________________
3.)
y = x
y = 4x + 2
Substitute
x = 4x + 2
Subtract 4x on both sides
x - 4x = 4x - 4x + 2
-3x = 2
Divide -3 on both sides to isolate the variable
-3x/-3 = 2/-3
x = -2/3
Now that we have that we can use it to find y
y = x
y = -2/3
x = -2/3
y = -2/3
( -2/3, -2/3)
Hope this helped!
Have a supercalifragilisticexpialidocious day!
multiply. (x^2-5x+2)(3x^2+2x+3)
Answers
Answer:
3x^4-13x^3-x^2-11x+6
Step-by-step explanation:
Checked this on a website for you btw!
Answer:
3x^4-13x^3-x^2-11x+6
Step-by-step explanation:
The point (x, y) is proportional to the point (2, 5).
Select all the true statements.
A. (x,y) is a solution to y=5/2x.
B. (x, y) is a solution to y=x+3.
C. The ratio of is equivalent to 5/2:
D. Point (x,y) is the same point as (5,2).
E. A straight line through points (2, 5) and (x,y) will pass through the origin.
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Answer:
did u get the answer??
Step-by-step explanation:
if so plz help
When changing 67, 430,000 to scientific notation, how many places is the decimal point moved?
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how do you even do this???
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undefined
defined; 7 x3
defined; 3 x 7
defined; 5 x 5
A saving account earns 4.5 simple interest per year. If 650.00 is deposited and no withdrawals or deposits are made during one year how much interest will be earned after one year
Answers
Answer:
29.25 Interest
Step-by-step explanation:
Take the formula: I=PRT
The principal is 650.00, 4.5 is the rate, 1 year is the time, We do not know the interest.
Change the rate, 4.5 to 0.045 to help solve the problem.
Times 650.00, 0.045, and 1 together.
You will get 29.25, Which is the answer!
Booyah! You are done.
Hope this helps!
HELP PLEASE
The value of h, to the nearest hundredth, is ...
Answers
Answer:
50.19
Step-by-step explanation:
quick mafs hun <3
8+ (10-7)
in word form
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Answer:
eight plus the answer to 10 minus 7
Step-by-step explanation:
theres no explanation really.
Answer:
Eleven
Step-by-step explanation:
8+( 10-7)
8+ ( 3)
8+3
11
The reason why we don't multiply 8 by 3 is because the parenthesis is multiplying a plus sign not 8
state if polygons are similar
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Answer:
B
Step-by-step explanation:
I WILL MARK BRAINLIEST!!!!!!!
Answers
Answer:
C
Step-by-step explanation:
hope it helps thank you
3. Tmobile charges 100 dollars for the initial phone line and then 20 dollars for every phone line afterwards.
Another phone company, ToPar, does not have any initial cost but charges 30 for each phone line.
A) Write an equation for the total cost for each company.
Equation for Tmobile:
Equation for ToPar:
B) After how many phone lines will the cost be the same.
C) When would Tmobile be a better choice
D) When would ToPar be a better choice?
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y=20x+100
Topar equation
y=30x
B) you’d set the two equation equal to each other
20x+100=30x
giving you the answer x=10
C) when x>13
D) when x<14
i’m a bit iffy on the last two but that’s the conclusion i came to
Use the description below for Exercises. A rectangle has a length of 12 inches and a perimeter of 42 inches.
The rectangle is dilated using a scale of 4. Find the perimeter and the area of the dilated rectangle.
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Answer:108
Step-by-step explanation:
12+12+42+42
Adam bike 15 miles in 3 hours. Ben bike 12 miles in 2 hours. What was there speed?
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Ben: 12 miles / 2 = 6Mi/Hr
Hope this helps!
A biology class examined some flowers in a local meadow. The students saw 88 perennial
flowers and 12 annual flowers. What percentage of the flowers were perennials?
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Answer:
88%
Step-by-step explanation:
Twice the difference of 1 and a number.
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Find the missing length
I WILL GIVE BRAINLIEST
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Answer: 30
Step-by-step explanation: Assuming that the side lengths correspond with one another you can set up a ratio to solve
It should look something like this: 15/25 = 18/x
With this equation set up you can solve by cross multiplying. 25(18)=15x
Then start sloving:
25(18)=15x
450=15x
450/15=15x/15 (divide both sides by 15)
30=x
PLEASR HELP ASAP!!!!!!! i’ll mark brainlest
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That’s the answer I think
A rectangle is 12 inches long and 2 inches wide. Find its area. A 22 square inches 14 square inches 24 square inches 26 square inches
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Area of given rectangle = 24 square inches.
The correct option is C.
What is rectangle?A rectangle is cyclic: all corners lie on a single circle. ; It is equiangular: all its corner angles are equal (each of 90 degrees).
Given,
Length of rectangle = 12 inches
Width of rectangle = 2 inches
Area of rectangle = length × width
= 12 × 2
Area of rectangle = 24 square inches.
Hence, 24 square inches is the area of rectangle.
Learn more about rectangle here:
https://brainly.com/question/29123947
#SPJ1
PARKING Stephanie is drawing the layout of a parking lot on a coordinate grid and needs to verify that two
sides meet in a right angle. In her sketch, one side of the parking lot has endpoints A(0,0) and B(50,0). The
second side of the parking lot has endpoints B(50,0) and C(18, 24). How can Stephanie prove that the two
sides of the parking lot meet in a right angle? Select all that apply.
® Find the slopes of AC and CB. If the product of the slopes is -1, then the sides meet in a right angle.
B Find the slopes of AB and AC. If the product of the slopes is -1, then the sides meet in a right angle.
© Find the slopes of CB and AB. If the slope of AB is the opposite of the slope of AC, then the sides meet in
a right angle.
Find AB, BC, and AC. If AB + BC = AC, then the sides meet in a right angle.
Find AB, BC, and AC. IfAB2+ BC = AC?, then the sides meet in a right angle.
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Answer:
The answer is: Find the slopes of AB and AC. If the product of the slopes is -1, then the sides meet in a right angle.
Step-by-step explanation:
From Analytical Geometry, two lines are perpendicular to each other if and only if [tex]m_{1}\cdot m_{2} = -1[/tex], where [tex]m_{1}[/tex] and [tex]m_{2}[/tex] are the slopes of each line, respectively. According to this, the following expression must be observed:
[tex]m_{AB} \cdot m_{BC} = -1[/tex] (1)
Each slope can be determine by definition of the slope of a Secant Line:
[tex]m_{AB} = \frac{y_{B}-y_{A}}{x_{B}-x_{A}}[/tex] (2)
[tex]m_{BC} = \frac{y_{C}-y_{B}}{x_{C}-x_{B}}[/tex] (3)
Where:
[tex]x_{A}[/tex], [tex]x_{B}[/tex], [tex]x_{C}[/tex] - x-Coordinates of points A, B and C.
[tex]y_{A}[/tex], [tex]y_{B}[/tex], [tex]y_{C}[/tex] - y-Coordinates of points A, B and C.
If we know that [tex]x_{A} = 0[/tex], [tex]y_{A} = 0[/tex], [tex]x_{B} = 50[/tex], [tex]y_{B} = 0[/tex], [tex]x_{C} = 18[/tex] and [tex]y_{C} = 24[/tex], then the relationship between slopes is:
[tex]m_{AB} = \frac{0-0}{50-0}[/tex]
[tex]m_{AB} = 0[/tex]
[tex]m_{BC} = \frac{24-0}{18-50}[/tex]
[tex]m_{BC} = -\frac{3}{4}[/tex]
[tex]m_{AB}\cdot m_{BC} = 0\cdot \left(-\frac{3}{4} \right)[/tex]
[tex]m_{AB}\cdot m_{BC} = 0[/tex]
Which means that both line segments are not perpendicular to each other.
In a nutshell, we need to find the slopes of AB and CB, if the product between both slopes is -1. Then, the sides meet in a right angle.
Janice drew a scale drawing of a house. The scale of the drawing was 1 inch : 3 feet. If the actual length of a rug in the hallway is 9 feet, how long is the rug in the drawing?
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Answer: 3 inches
Step-by-step explanation: Divide the actual length, 9 feet by 3, since that is the scale. then convert to inches
9/3 =3
Express 2.31 as a fraction
A. 231/1000
B. 2.31/10
C. 231/100
D. 2.31/1000
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Answer:
C 231/100
Step-by-step explanation:
hope this helps :)
The volume of a cylinder is 1767 cm and its height is 11 cm.
What is the length of the cylinder's radius?
Enter your answer in the box.
Answers
Answer:
1778 cm
Step-by-step explanation:
At a Chinese buffet, there are five
entree selections. If two entrees may be
selected, how many ways may the
plates be filled?
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Answer:
I know I'm a little late, but there are 10 different ways the plate can be filled.
Step-by-step explanation:
Formula:
someone help its due
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Answer:
15
Step-by-step explanation:
PQR = 150.
RPQ = PRQ
RPQ + PRQ = 30
RPQ = 15
please help. I need the answer to the question circled in red. thanks!!
Answers
Answer:
35 units
Step-by-step explanation:
Write the equation of the line with the given slope and y-intercept
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Answer:
A) y = x - 3/4
Step-by-step explanation:
The equation of the line with slope m and intercept b is
y = mx + b
Here were have slope = m = 1.
y-intercept = b = -3/4
Equation:
y = mx + b
y = 1x + (-3/4)
y = x - 3/4
Answer: A) y = x - 3/4
Solve.
3/5x - 7 = 23
A. x = 40
B. x = 45
C. x = 50
D. x = 55
Answers
Answer:
(C) x=50
Step-by-step explanation:
[tex]\frac{3}{5 }x -7=23[/tex]
[tex]\frac{3x}{5} -7=23[/tex]
[tex]\frac{3x}{5} -7+7=23+7[/tex]
[tex]\frac{3x}{5}=30[/tex]
[tex]3x=30* 5[/tex]
[tex]3x=150[/tex]
[tex]x=50[/tex]
Answer:
(C) X = 50
Step-by-step explanation:
(3/5)*x-7 = 23 // - 23
(3/5)*x-23-7 = 0
3/5*x-30 = 0 // + 30
3/5*x = 30 // : 3/5
x = 30/3/5
x = 50 (Sorry if it's wrong)
Solve the simultaneous equations
2x + 4y = 22
2x + 2y = 15
Answers
Answer:
1. x= 11+-27
2.x = 7.5 + -1y
Step-by-step explanation:
1. Move all terms containing x to the left, all other terms to the right.
Add '-4y' to each side of the equation.
2x + 4y + -4y = 22 + -4y
Combine like terms: 4y + -4y = 0
2x + 0 = 22 + -4y
2x = 22 + -4y
Divide each side by '2'.
x = 11 + -2y
Simplifying
x = 11 + -2y
2.Move all terms containing x to the left, all other terms to the right.
Add '-2y' to each side of the equation.
2x + 2y + -2y = 15 + -2y
Combine like terms: 2y + -2y = 0
2x + 0 = 15 + -2y
2x = 15 + -2y
Divide each side by '2'.
x = 7.5 + -1y
Simplifying
x = 7.5 + -1y
select all relations that are functions from the choices below.
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..Kyle purchased a plant that was 2 inches tall. The function h(t) = 2 + 0.75t models the height of the plant t months after Kyle purchased the plant. What is the meaning of h(11)?
a. The plant is 12 inches tall after 11 months.
b. The plants is 11 inches tall after 12 months.
c. The plant is 11 inches tall after 10.25 months
d. The plant is 10.25 inches tall after 11 months.
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Answer:
a
Step-by-step explanation: