Answer:
[tex]\displaystyle Substitution[/tex]
Explanation:
Elimination and Substitution are two methods to use when solving systems of equations in two and three variables [tex]\displaystyle [z, y, and\:x].[/tex]With Elimination, you decide on which pair of variables you want to eradicate so they are set to zero, whereas Substitution is mainly used when one variable is automatically isolated. If not, then you must manually decide on which variable to isolate as well as the equation you want to wourk.
I am joyous to assist you at any time.
Ray has a backyard in the shape of a square with a semicircle on top. The square part of the yard has sides that are 20 feet long. How many square feet is Ray's
backyard?
Answer:
400 feet^3 hope this helped!
5 less than a number is twice the sum of that number and 9
Answer:
let the number be " x "
[tex]\bold{x - 5 = 2(x + 9)} \\\bold{ x - 5 = 2x + 18 } [/tex]
gathering the like terms together , we get
[tex]\bold{2x - x = - 5 - 18} \\\bold{ x = - 23}[/tex]
hope helpful~
Answer:
The answer is going to be 7 or X=7. Here is how that conclusion came to be. Five less than twice a number is 9; here is the mathematical sentence we created to represent the statement:
2X-5=9 now lets work it.
2X-5+5=9+5
2X=14 , lets divide boyh sides of the equation by 2.
2X/2=14/2
X=7 Now lets prove this number represents X.
2(7)-5=9
14–5=9
9=9
I HOPE THIS HELPED YOU.
what is the answer to g(-3) = (-3) squared + 5 (-3)
Answer:
The answer is -3g=(-6)
What is the meaning of the word enigma as it is used in the following sentence?
The reason that the source of the noise is such an enigma is that no one ever traced the sound when they heard it.
Impact
Mystery, puzzle
Knowledge
Unstoppable force
Will receive brainiest if correct√
Answer:
In this context, the word "enigma" means mystery.
Step-by-step explanation:
Answer:
Mystery, puzzle
Context clue: "No one ever traced the sound when they heard it." + "The reason that the source of the noise is such an" provide context clues that this may be a mystery or some sort of puzzling puzzle.
A city has a population of 210,000 people. Suppose that each year the population grows by 4.25%. What will the population be after
13 years?
Use the calculator provided and round your answer to the nearest whole number
Answer:
Approximately 494,314 people
This is an exponential growth question, specifically population growth. We will use the following equation to help us solve this situation:
P(t) = a(1+r)t
P(t) = total population (??)
a = initial population = 260,000
r = growth factor (the percent as a decimal) = 0.055
1 + r = 1 + 0.055 = 1.055
t = time in years = 12
So, we can substitute all our information and solve:
P(12) = 260,000(1.055)12 = 494,313.95
Rounding to the nearest whole person, 494,314 people in 12 years.
Hope it helps!!!!!!!!!Brainliest pls!!!!!!!!Janet has money invested in two different accounts. The function f(x) represents the amount of money in an account after x years of interest compounded monthly, while the function g(x) represents the amount of money in an account after x years of simple interest. x 1 2 3 4 f(x) 1,576.74 1,657.41 1,742.21 1,831.34 x 1 2 3 4 g(x) 1,575 1,650 1,725 1,800 Complete the table to show the difference in the value of the accounts for each year. x 1 2 3 4 (f – g)(x)
Considering the amounts in each table, the difference function is given as follows:
x| 1 2 3 4
(f - g)(x)|1.74 7.41 17.21 31.34
What is the difference function?At each value of x, the difference function (f - g)(x) is given by f(x) - g(x).
Hence, from the table given:
(f - g)(1) = f(1) - g(1) = 1,576.74 - 1,575 = 1.74.
(f - g)(2) = f(2) - g(2) = 1,657.41 - 1,650 = 7.41.
(f - g)(3) = f(3) - g(3) = 1,742.21 - 1,725 = 17.21.
(f - g)(4) = f(4) - g(4) = 1,831.34 - 1,800 = 31.34.
More can be learned about functions at https://brainly.com/question/25537936
A scale drawing of a park is 30 inches long and 24 inches wide. On the drawing, 1 inch is equal to 250 feet What are the actual length and width of the park? Enter the answer in each box.
1 inch equals 250 feet.
Multiply the inches on the map by 250 to get total feet.
30 x 250 = 7,500 feet
24 x 250 = 6,000 feet
The park is 7,500 feet long by 6,000 feet wide
The scale factor of the drawing is 1 inch equal to 250 feet. Then the actual length and width are 7500 feet and 600 feet.
What is the scale factor?The scale factor means the changing of the size of the object without changing the shape. The size of the object may be increased or decreased based on the scale factor.
A scale drawing of a park is 30 inches long and 24 inches wide. On the drawing, 1 inch is equal to 250 feet. Then the actual dimension will be
Length = 30 × 250
Length = 7500 ft
Width = 24 × 250
Width = 6000 ft
More about the scale factor link is given below.
https://brainly.com/question/2856466
What are some examples of specific values carried on through generations?
Pass down expensive jewelry.
Go on costly family vacations.
Participate in special mealtimes and celebrations.
Attend the same university as family members.
Answer:
20+(56)-18=
Step-by-step explanation:
some specific values are carried on 15 to 60 numbers
A size 8 kid’s shoe measures 9 2/3 inches. If 5 size 8 shoes are lined end to end, then how many inches will they cover? *
Answer:
five pairs of size 8 shoes = 48 1/3
Answer:
5 pain of size 8 lined up will be 48 1/3 inches long
(5, 1) is translated left 2 units and down 3 units what's the new vertex
Answer:
3,-2
Step-by-step explanation:
The answer is 3,-2 because left is negative so you would subtract 2 and down is negative so you would subtract 3.
What equation is equivalent to 4x+1/2+2x+(-3)
Answer:
6x-5/2
Step-by-step explanation:
4x+1/2+2x+(-3)
4x+2x+1/2-3
6x+1/2-3
6x+1/2-6/2
6x-5/2
Look at the image. What is the answer? Will give brainiest!
Answer:
105
Step-by-step explanation:
L*W*H
7*3*5 = 105
1. Determine if the lengths 9 cm, 13 cm, and 23 cm can form a triangle.
a. What are the two shortest side lengths?
acmt 15-24
b. Find the sum of the two shortest side lengths.
c. What is the longest side length?
d. Is the sum of the two shortest side lengths more than the length of the longest side?
e. Can the lengths 9 cm, 15 cm, and 23 cm form a triangle?
f. Fill in the blank so the three lengths will NOT form a triangle. 9 cm, 15 cm,
ст
2. Describe how to determine if three lengths form a triangle.
How would i find it? What is the answer? ( first person to answer gets brainliest
Answer:
36 cans
Step-by-step explanation:
The question is asking: What is 45% of 80?
45/100 = x/80
100x= 45x80 (cross multiply)
45x80= 3600
3600/100=
36
Identify the polygon with vertices H(-6, -2), A (-10,4), T(-6,6), and C(-2,4) and then find the perimeter
and area of the polygon.
Answer:
kite; P=45–√+413−−√ units; A=32 units2
Step-by-step explanation:
Find the length of each side using the Distance Formula.
Find the length of side HA.
HA=(−10−(−6))2+(4−(−2))2−−−−−−−−−−−−−−−−−−−−−−−√
=(−4)2+(6)2−−−−−−−−−−√
=16+36−−−−−−√
=52−−√=213−−√
Find the length of side AT.
AT=(−6−(−10))2+(6−4)2−−−−−−−−−−−−−−−−−−−−√
=(4)2+(2)2−−−−−−−−−√
=16+4−−−−−√
=20−−√=25–√
Find the length of side TC.
TC=(−2−(−6))2+(4−6)2−−−−−−−−−−−−−−−−−−−√
=(4)2+(−2)2−−−−−−−−−−√
=16+4−−−−−√
=20−−√=25–√
Find the length of side HC.
HC=(−2−(−6))2+(4−(−2))2−−−−−−−−−−−−−−−−−−−−−−√
=(4)2+(6)2−−−−−−−−−√
=16+36−−−−−−√
=52−−√=213−−√
Therefore, HA=HC=213−−√ and AT=TC=25–√.
Since there are two pairs of congruent consecutive sides, HATC is a kite by definition.
Find the perimeter of the kite as the sum of the four sides.
P=213−−√+25–√+25–√+213−−√=45–√+413−−√ units
To find the area of the kite, first find the lengths of the diagonals AC and TH using the Diatance Formula.
The figure shows the same quadrilateral H A T C as in the beginning of the task. Diagonal A C is perpendicular to diagonal T H.
Find the length of diagonal AC.
AC=(−2−(−10))2+(4−4)2−−−−−−−−−−−−−−−−−−−−√
=(8)2+(0)2−−−−−−−−−√
=64−−√=8
Find the legth of diagonal TH.
TH=(−6−(−6))2+(−2−6)2−−−−−−−−−−−−−−−−−−−−−√
=(0)2+(−8)2−−−−−−−−−−√
=64−−√=8
Find the area of the kite using the formula for the area of a kite, A=12d1d2.
Substitute 8 for d1 and 8 for d2.
A=12(8)(8)=32 units2
Therefore, the perimeter of the kite is 45–√+413−−√ units and the area is 32 units2.
Solve the equation for x.
32(x − 8) = 14x + 3
The solution is 14.38
The value of x from the equation 32 (x − 8) = 14x + 3 is x = ( 14 7/18 )
What is an Equation?
Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the equation be represented as A
Now , the value of A is
32 (x − 8) = 14x + 3 be equation (1)
Now , on simplifying the equation , we get
32 ( x ) - 32 ( 8 ) = 14x + 3
32x - 256 = 14x + 3
Adding 256 on both sides of the equation , we get
32x = 14x + 259
Subtracting 14x on both sides of the equation , we get
18x = 259
Divide by 18 on both sides of the equation , we get
x = 259/18
The value of x = 14.38
Therefore , the value of x = 14.38 or 14 7/18
Hence , The value of x from the equation is x = ( 14 7/18 )
To learn more about equations click :
https://brainly.com/question/19297665
#SPJ2
if (am*an)/ap=ax then express in terms of m, n ,p
with explanation
Answer:
x = m*n / p
Step-by-step explanation:
am * an / ap = ax
=> x = m*n / p
Which number is irrational?
√121
√25
√3
√16
Will mark brainliest if you explain
Answer:
The square root of 3
Step-by-step explanation:
The other ones equal a number Ex Square root of 16 is 4 but the square root of 3 would be a large decimal
Hellllpp pleaseee !!!
Can I please help me with this question
Answer: 10n^2+n+9
Which is false? Financial math
30 points!!!!! Read the picture please
Answer:
I think it's 29
Step-by-step explanation:
if I'm wrong let me know and I'll delete my answer
x- 3=8 solve each equation
Answer:
x=11
Step-by-step explanation:
you need to get x by itself so just add it to the other side and you get x=11
Answer:
x =11
Step-by-step explanation:
x - 3 = 8
To solve the equation, we have to isolate 'x'.
To isolate 'x', we have to add 3 to both sides.
x - 3 + 3 = 8 + 3
x = 11
someone help!!! 18 pts :((
- - - - - - - - - - - - - - - - - - - - - - - - - - -
Here's the Surface Area formula I use ⇣
- - - - - - - - - - - - - - - - - - - - - - - - - - -
Surface Area = length x width + length x height + height x width
- - - - - - - - - - - - - - - - - - - - - - - - - - -
So, let's use it...
9m x 7m = 63m
9m x 5m = 45m
5m x 7m = 35m
- - - - - - - - - - - - - - - - - - - - - - - - - - -
63m + 45m + 35m = 143m
- - - - - - - - - - - - - - - - - - - - - - - - - - -
Have a great day! :)
~pinetree
Answer:
286
Step-by-step explanation:
Formula 2 x (height x depth + height x width + depth x width)
2 x (5 x 7 + 5 x 9 + 7 x 7) = 286
What is the measure of angle x?
Answer:
83 is the measure of x.
Step-by-step explanation:
A triangle is equal to 180 degrees. So 180 - 53 - 44 = 83.
Answer:
83 degrees
Step-by-step explanation:
The measure of all three angles in any triangle will always add up to 180.
To solve a problem like this, simply add up the given measurements and then subtract that total from 180. In this case you would get an answer of 180 degrees.
Hope that helps!
first class airplanes has 40 pilots for every 15 aircrafts if they employ 250 pilots how many aircrafts does first class airplanes own
Please help really quick I really need some help with this question
Answer:
first two because they align almost perfectly with the scatterplot and fit the direction described
Step-by-step explanation:
(Please somebody help me!) (No links!)
Answer:
1 with 9 2 with 7 3 with 1 4 with 3 and 5 with 5
Answer:
Equation 1 matches with number 9.
Equation 2 matches with number 7.
Equation 3 matches with number 1.
Equation 4 matches with number 3.
Equation 5 matches with number 5.
Step-by-step explanation:
Equation 1: −9x > −9
−9x > −9
Divide both sides by −9.
-9x/-9 = -9/-9
Since −9 is negative, the inequality direction is changed.
x < 1
x < 1 matches with the graphed solution of number 9.
So, Equation 1 matches with number 9.
Equation 2: 2x + 6≥ −2
2x + 6≥ −2
Step 1: Subtract 6 from both sides
2x + 6 − 6 ≥ −2 − 6
2x ≥ −8
Step 2: Divide both sides by 2
2x/2 ≥ −8/2
Step 3: Simplify
x ≥ -4
x ≥ -4 matches with the graphed solution of number 7.
So, Equation 2 matches with number 7.
Equation 3: x − 9 < −5
x − 9 < −5
Step 1: Add 9 to both sides.
x − 9 + 9 < −5 + 9
x < 4
x < 4 matches with the graphed solution of number 1.
So, Equation 3 matches with number 1.
Equation 4: −6x < −12
−6x < −12
Divide both sides by -6
-6x/-6 < -12/-6
Since −6 is negative, the inequality direction is changed
x > 2
x > 2 matches with the graphed solution of number 3.
So, Equation 4 matches with number 3.
Equation 5: -7x + 20 > 55
Step 1: Subtract 20 from both sides.
−7x + 20 − 20 > 55 − 20
Step 2: Simplify
−7x > 35
Step 3: Divide both sides by -7.
-7x/-7 > 35/-7
Step 4: Simplify
x < -5
Since −7 is negative, the inequality direction is changed
x < -5 matches with the graphed solution of number 5.
So, Equation 5 matches with number 5.
Hint: less than (<), greater than (>), less than or equal (≤), greater than or equal (≥) and the not equal symbol (≠)
Find both x and y. Leave answers in simplified radical from. (Step by step)
[tex]\\ \rm\rightarrowtail sin45=\dfrac{x}{12}[/tex]
[tex]\\ \rm\rightarrowtail \dfrac{1}{\sqrt{2}}=\dfrac{x}{12}[/tex]
[tex]\\ \rm\rightarrowtail x=\dfrac{12}{\sqrt{2}}[/tex]
[tex]\\ \rm\rightarrowtail x=6\sqrt{2}ft[/tex]
Now
[tex]\\ \rm\rightarrowtail tan60=\dfrac{y}{6\sqrt{2}}[/tex]
[tex]\\ \rm\rightarrowtail y=6\sqrt{6}[/tex]
x2 - 12x + 32 = (x - 8)
Answer:
x = 3.6
Step-by-step explanation:
=> x2 - 12x + 32 = (x - 8)
=> 2x - 12x + 32 = (x - 8)
=> 2x - 12x + 32 = x - 8
=> 2x - 12x - x = -8 -32
=> -10x - x= -40
=> -11x = -40
=> (-11x)/-11 = (-40)/-11
=> x = 3.636363636363636
=> x = 3.6