Answer:
Step-by-step explanation:
Write in standard form.
2 x − 3 y = − 21
Write in standard form.
3 x + y = 23
answered: faith1993
Standard form means, move the variables to the left-hand-side and leave the constant all by herself on the right-hand-side, usually sorting the variables, so"x" goes first.
now, there's a denominator, we can do away with it, by simply multiplying both sides by the denominator, so let's do so,
answered: evelynalper08
The standard form of an equation of a line is written as:
Ax + By = C
where A, B and C are constants.
y = –2/3x + 7
2/3x + y = 7
(2/3x + y = 7)3
2x + 3y = 21
The standard form of an equation of a line is written as:
Ax + By = C
where A, B and C are constants.
y = –2/3x + 7 2/3x + y = 7(2/3x + y = 7)32x + 3y = 21
Y= -2/3*x+7 | *3
3y= - 2x+21 | +2x
3y+2x=21 this is the correct answer
You multiply everything by 3 which equals 3y=2x+21 then you switch 21 and 3y which equals -21=2x-3y. Hope this helps
1 Answer. The equation in standard form is 23x−y=7 .
Step-by-step explanation:
answered: Guest
it's equivalent, so we can say that its equal.
let's call the denominator x and the numerador is 18 less then denominator, x - 18.
\frac{2}{5}=\frac{x-18}{x}
multiply
2.x = 5.(x - 18)
2x = 5x - 90
90 = 5x - 2x
90 = 3x
x = 90/3
x = 30
so:
HELP PLEASE!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
For 10 plot a point 3 lines back and 5 lines back
For 11 its 2
Step-by-step explanation:
Answer:
2$ or -2$
Step-by-step explanation:
ok amanda owns 5$ and james owes 3$ ok so 5-3 and you got 2 but becuase they owe money it may be negative
What do you used to find perimeter
Answer:
Perimeter = 2 ( l + w )
if u r given for rectangle thats the formula
Step-by-step explanation:
To find the perimeter of a rectangle, add the lengths of the rectangle's four sides. If you have only the width and the height, then you can easily find all four sides (two sides are each equal to the height and the other two sides are equal to the width).
what is the standard form of 3+5x-4x^2
and what is the standard form of 8x+x+5+x^3
Answer:
1. -4x^2 + 5x + 3
2. x^3 + 9x + 5
Step-by-step explanation:
hope this helps
please answer this question
Given that m is parallel to n, what must be true of the two lines? Check all that apply.
Answer:
I don't have the options but I know parallel lines will never touch, they have the same slope, and the distance between the lines never changes
e)1- Tan A/1 + Tan A=1-Sin 2A/Cos 2A
Step-by-step explanation:
Answer :
Which three angle measures can be ABC?
Answer:
60°
Step-by-step explanation:
all angles are equal so divide 180 by 3. a triangles angles add up to 180.
the temperature of the first 6 days in march is shown below. if the temperature 23 F is removed from below, how much greater is the range of the original 6 temperatures than the range of the 5 temperatures:
23F 58F 62F 64F 64F 65F
a. 35
b. 42
c. 7
d. 23
Given:
The temperature of the first 6 days in march is:
23F, 58F, 62F, 64F, 64F, 65F
23 F is removed from the data set.
To find:
How much greater is the range of the original 6 temperatures than the range of the 5 temperatures.
Solution:
Range of a data set is:
Range = Maximum value - Minimum value
The given data set is:
23 F, 58 F, 62 F, 64 F, 64 F, 65 F
The range of given data set is:
Range = 65 - 23
= 42
If the temperature 23 F is removed from the data set, then the new data set is:
58 F, 62 F, 64 F, 64 F, 65 F
The range of this new data set is:
Range = 65 - 58
= 7
Now, the difference between original range and new range is:
[tex]42-7=35[/tex]
The original range is 35 more than the new range. Therefore, the correct option is a.
i really need help with this!!! thank you i appreciate it
the volume of the square pyramid is ___ cubic meters
Answer:
6000 m^3
Step-by-step explanation:
The basic formula for the area of a pyramid is 1/3 * b * h
where b is the base and h is the height.
The base is a square, so, we can find the area by squaring the side:
30^2 = 900.
Now, we can plug the values we have into the formula from above:
1/3 * 900 * 20
6000 m^3
help help help help answer pls
Answer:
D. the land area of Alaska is about 300,000 square miles more than the land area of Montana
Step-by-step explanation:
Because it is
Answer:
i think it is a
Step-by-step explanation:
QUICK I NEED HELP!!!
help me pleaseee QUICK I WILL GIVE SOMEONE BRAINLY
Answer:
B. 5626.9
Step-by-step explanation:
• volume of cylinder= pi(r)2h
• plug in the values into the equation
• pi(8)2(28)
pi=3.14 so 3.14(8)2(28)
• multiply all the values
• you get 5629. 73
• b is the closest the that answer since it says approximate
Find, to the nearest degree, the angle of elevation of the sun at a time when a tree 20 feet high casts a shadow 12 feet long .
Answer:
Angle of elevation of sun = 59°
Step-by-step explanation:
Given:
Height of tree = 20 feet
Shadow of tree on ground = 12 feet
Find:
Angle of elevation of sun
Computation:
Height of tree = Perpendicular
Shadow of tree on ground = Base
Using trigonometry function;
Tanθ = Perpendicular / Base
Tanθ = 20 / 12
Tanθ = 1.66
Tanθ = Tan 59°
θ = 59°
So,
Angle of elevation of sun = 59°
Find the volume of the triangular prism.
NO LINKS THEY WILL BE REPORTED
Answer:
4.5 ft³
Step-by-step explanation:
Volume = 1/2(LxWxH)
1/2( 1.5 x 2) * 3 = 1.5 x 3 = 4.5 ft ³
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
PLEASE HELP!!! 25 POINTS & WILL MARK BRAINLIEST
Answer:
It is answer A without a doubt
Step-by-step explanation:
. Simplify: (2 x 2 + 6-10 ÷
2)
Answer: 5
Step-by-step explanation:
You see 2x2 = 4 right and since this is operation 2 / 10 = 5 and 6-5 = 1 so add 1 and that gives you 5
2x2 = 4 / 10/2 = 5 / 6-5 = 1 +4 = 5
Answer:
= 4x + -4
Step-by-step explanation:
Let's simplify:
[tex]2x(2) + 6 -10 \\ = 4x + 6 - 10[/tex]
Combine Like Terms:
[tex]=4x+6+−10
\\ =(4x)+(6+−10) \\ =4x+−4[/tex]
What is the quadratic regression equation that fits these data?
Answer:A. -1.11x^2+ 3.74+ 10.64
Step-by-step explanation:
a. p. e. x. (just took the test)
Answer:
A
Step-by-step explanation:
I just got the question right on the test lol!!
Is (1, 4) a solution to this system of equations? 8x + 3y = 20 x + 4y = 17
Answer:
Yes.
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Coordinates (x, y)Systems of EquationsStep-by-step explanation:
Step 1: Define
Identify
8x + 3y = 20
x + 4y = 17
(1, 4)
Step 2: Check
Plug and verify the coordinates is a solution.
Substitute in point [1st Equation]: 8(1) + 3(4) = 20Multiply: 8 + 12 = 20Add: 20 = 20 [tex]\checkmark[/tex]Substitute in point [2nd Equation]: 1 + 4(4) = 17Multiply: 1 + 16 = 17Add: 17 = 17 [tex]\checkmark[/tex]∴ Since both equations work out, (1, 4) is a solution to the systems of equations.
PLEASEE HELPPP!!!! Bots will be taken down.
Answer:
um what grade
Step-by-step explanation:
is like 8th grade math or 7th grade math
Answer:
What do we do?
Step-by-step explanation:
I don’t know what we do
what is 3,8765 round off numbers to the nearest w
hole number
Answer:
do you mean 3.8765? cuz if you do its 4
Step-by-step explanation:
The rounded number to the nearest whole number is 4.
What is rounding off?Rounding off is estimation. Estimating the actual number to its nearby number is called rounding off.
Given is a decimal number 3.8765 we need to round off to the nearest whole number,
3.8765 =
You rounded to the nearest ones place. The 3 in the ones place rounds up to 4 because the digit to the right in the tenths place is 8.
When the digit to the right is 5 or greater we round away from 0.
Hence, 3.8765 was rounded up and away from zero to 4.
Hence, the rounded number to the nearest whole number is 4.
Learn more about round off, click;
https://brainly.com/question/13391706
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what is the value of b
Answer:
61 degrees
Step-by-step explanation:
Find the mode median, mean, and range for each data set.
PLS HELP!!!
Answer:
https://www.calculator.net/mean-median-mode-range-calculator.html
Step-by-step explanation:
use this website it helps so much
Answer: If I put a line over the number that means continued Ex: (23.333333..., 3.098888 or 56.77777...)
11. Mean 1 + 2 + 3+ 3+ 4+ 4+ 4+ 5+ 5 / 9 = 31/9 =26.5 .Median 4 Mode 4 Range 5 - 1 = 4. _
12. Mean 6.5 + 7.5 + 7.5 + 7.5+ 8 + 8.5 + 8.5 + 8.5 + 8.5 + 8.5 +9 = 88.5/11 =8.045
median 8.5 mode 8.5 range 9 - 6.5= 2.5
13. Mean 5.75 + 7.25 + 7.75 + 8 = 28.75/4 = 7.1875. median 7.25 + 7.75 = 15/2 = 7.5 range 8 - 5.75 = 2.25
14. Mean 5 + 5 + 6 + 6 + 6 + 7 + 7 + 7 + 7+ 7 = 63/10 = 6.3 median 6 + 7 = 13/2 = 6.5 . mode = 7 range 7 - 5 = 2. _
15. Mean 5 + 5 + 5 + 7+ 7+ 7+ 7 + 7+ 7+ 7/9 = 62/9 = 57.5 median 2 mode 2 range 7 - 5 = 2.
16. 1 + 2 + 2 + 2 + 2 + 2 + 3 + 5 + 5 + 5= 29/10 = 2.9 Median 2 mode 2 range 5 - 1 = 4.
17. 1 +2 + 3 + 5 + 6 + 6+ 6 + 8 + 13 + 19 = 69/10 = 6.9 median 6 mode 6 range 19 - 1 = 18. __
18. 1 + 2 + 2 + 2 + 2+ 2 + 2 + 2 + 4 + 4 + 5 = 27/11 = 2.45 median 2 mode 2 range 4.
Step-by-step explanation:
Mean
Add up all the numbers, then divide by how many numbers there are. Ex: 2, 3, 4. 2 + 3 + 4 = 9. Since there is 3 numbers we divide. 9 divided by 3 equals 3 so 3 is your mean.
Median
Arrange your numbers from least to greatest.
Count how your numbers.
If you have a set of odd numbers, the number in the middle is your median. Ex: 2, 3, 6, 7, 1, . your median is 6.
Mean
If you have a set of even numbers use the 2 numbers in the middle then divide. Ex: 1, 5, 3, 8, 9, 2. The two numbers in the middle are 3 and 8 . 3 plus 8 equals 11. 11 divided by 2 is 5.5. the mean.
Mode
write the numbers from least to greatest. The number that shows the most is your mode. Ex. 4 , 6 ,7 ,3 ,1 3, 3, 3, 2 3, . The number that appears the most is 3. So 3 is the mode. If there is no number that appears more than all the others put NONE or N/A in the blank.
Range
To find the range put the subtract the greatest number and least number. Ex: 2, 4, 7, 1, 8. 1 , 2, 4, 7, 8. 8 mins 1 is 7 so 7 is the range.
11. Max is designing a hot tub for a local spa.
He wants the hot tub to have a diameter of 89 inches, What is
the approximate area required for the installation of the hot tub?
(Use 3.14 for pi.)
NO PDF PLZ
Answer:
Area required for circular hot tube = 6,218 inch² (Approx.)
Step-by-step explanation:
Given:
Diameter of circular hot tube = 89 inches
Value of π = 3.14
Find:
Area required for circular hot tube
Computation:
Radius of hot tube = Diameter / 2
Radius of hot tube = 89 / 2 inches
Area required for circular hot tube = Area of circle
Area of circle = πr²
Area required for circular hot tube = πr²
Area required for circular hot tube = (3.14)(89/2)²
Area required for circular hot tube = (3.14)(7921 / 4)
Area required for circular hot tube = (3.14)(1,980.25)
Area required for circular hot tube = 6,217.985
Area required for circular hot tube = 6,218 inch² (Approx.)
A tepee is designed to have a diameter of 10 feet and the volume of 419 ft.³ at what height the support poles crossed with some of the tepee correctly?
Answer:
The required height is equal to 5.33 feet.
Step-by-step explanation:
Given that,
Diameter, d = 10 feet
Volume, V = 419 ft.³
We need to find the height the support poles crossed with some of the tepee correctly. Let the height is h.
The tepee is in the form of a cylinder. The volume of a cylinder is given by :
[tex]V=\pi r^2 h\\\\h=\dfrac{V}{\pi r^2}\\\\h=\dfrac{419}{3.14\times 5^2}\\\\h=5.33\ ft[/tex]
So, the required height is equal to 5.33 feet.
Please help mee!!! Will give brainliest!
Answer:
B.11+7=18
Step-by-step explanation:
its B because since its 7 days AFTER it means your going to have to add the 11 days plus this 7 days. Which would give you 18 days left till Susie's concert.
Which can be represented by the expression 17 – 2x? A. 17 less than twice a number B. the difference between 17 and twice a number C. a number x squared, subtracted from 17 D. 17 less than a number x squared
Answer:
b it has a difference when subtracting
Answer:
The answer is B.
Step-by-step explanation:
When you subtract you get a difference.
A jar contains 12 oatmeal cookies, 13 sugar cookies and 5 chocolate chip cookies. The percent of cookies that are oatmeal is_?
Answer:
40%
Step-by-step explanation:
12+13+5 = 30
oatmeal = 12/30 which is 4/10 or 40%
If it cost 16.50 for 6 shirts how much would it cost for just one shirt?
Answer:
Each shirt would cost $2.75
Step-by-step explanation:
What is the surface area of the figure below? 6ft 3ft 3ft
A. 12ft
B.36ft
C.54ft
D.90ft
Answer:
D 90 ft
Step-by-step explanation:
3×3×2+3×6×4=18+72=90
Please explain how to do #3