Answer:
for number 2 its C
what is the solution to the system of equations? 3x-2y=19 y=x-7
A) (6,-1)
B) (33,26)
C) (1,-6)
D) (5,-2)
Step-by-step explanation:
3x - 2y = 19 ...1
Replace y = x-7 in ...1
3x - 2(x-7) = 19
3x - 2x + 14 = 19
x = 19 - 14
= 5
Replace x = 5 in y = x - 7
y = 5 - 7
= -2
(5,-2)
Simplify by combining like terms 2x + 5 + x
Answer:
3x+5
Step-by-step explanation:
combine like terms add the variables together, then its simplified
if l is parallel to m, find the value of each missing variable(s)
Answer:
x=24 y=15
step by step solution:
The area of a square room is 125 square feet. To the nearest foot, what is the length of one side of the room?
Answer:
Side = [tex]5\sqrt5\ \text{feet}[/tex]
Step-by-step explanation:
Given that,
Area of a square room is 125 square feet
We need to find the length of one side of the room.
The area of a square shaped room is given by :
[tex]A=x^2[/tex]
Where, x is side of the square room
[tex]x=\sqrt{A} \\\\x=\sqrt{125}\\\\x=\sqrt{5\times 5\times 5}\\\\x=5\sqrt5\ \text{feet}[/tex]
So, the side of the room is [tex]5\sqrt5\ \text{feet}[/tex].
What is the solution to the inequality -2(m+3)<4
Answer:
m>−5
Step-by-step explanation:
Help keep simple math 37 points
What is 13,439 plus 26,948
Answer:
13,439+26,948= 40,387
2 1/3 rational or irrational
Answer:
Irrational
Step-by-step explanation:
Edwin and Anthony are building a rectangular deck in their backyard. The longer side is 2 ft more than 1/3 of the perimeter. The shorter side is 1/10 of the perimeter. They also know that the longer side is 9 ft longer than the shorter side. What is the perimeter of the deck?
Answer:
30 ft
Step-by-step explanation:
Perimeter of a rectangle = 2(length + width)
Let
Perimeter = x
Length = 1/3x + 2
Width = 1/10x
Length = 9 + 1/10x
Perimeter of the deck = 2(length + width)
x = 2(1/3x + 2 + 1/10x)
x = 2(10x+3x/30 + 2)
x = 2(13/30x + 2)
x = 26/30x + 4
x - 26/30x = 4
30x-26x/30 = 4
4/30x = 4
Divide both sides by 4/30
x = 4 ÷ 4/30
= 4 × 30/4
x = 30 ft
Length = 1/3x + 2
= 1/3(30) + 2
= 30/3 + 2
= 10 + 2
= 12 ft
Width = 1/10x
= 1/10(30)
= 30/10
= 3 ft
Length = 9 + 1/10x
= 9 + 1/10(30)
= 9 + 30/10
= 9 + 3
= 12 ft
The perimeter of the deck = x = 30 ft
The table shows values for the two functions f and g for different values of x.
What is f(g(0))?
-1
0
1
This composition is undefined.
Answer:
C.) 1
Step-by-step explanation:
EDG 2020
The value of f(g(0)) is 1.
What is Composition of Functions?Composition of two functions f and g can be defined as the operation of composition such that we get a third function h where h(x) = (f o g) (x).
h(x) is called the composite function.
Given a table which shows values for the two functions f and g for different values of x.
We have to find the value of f(g(0)).
f(g(0)) = f[ g(0)]
From the table, g(0) = -1.
f(g(0)) = f(-1) = 1
Hence the value of f(g(0)) is 1.
Learn more about Composition of functions here :
https://brainly.com/question/5614233
#SPJ7
The table is given below.
how do you do -5+-9
Answer:
-14
Step-by-step explanation:
adding 2 negatives gives you a negative
If g (x)= 3/2x+4, what is the value of g(2)?
Answer:
g(2) =7
Step-by-step explanation:
g (x)= 3/2x+4
Let x = 2
g (2)= 3/2 *2+4
= 3 +4
= 7
Answer: 3/8
Step-by-step explanation:
Put 2 as the x into the equation.
3/2(2)+4
Multiply 2•2
3/4+4
Add 4+4
3/8
Answer cannot be further simplified.
Anne Pederson is driving to Cleveland, a distance of 324 miles. Her car gets 27 miles
per gallon, and gas costs $2.43 per gallon. How much does she spend for gas for the
trip?
Answer: 29.16
Step-by-step explanation:
1.)
324 ÷27= 12
2.)
2.43 x 12= 29.16
5x + 10 > 35
How do you work this out?
Answer:
[tex]x > 5[/tex]
Step-by -step explanation:
Solving inequalities is similar to solving equations.
[tex]5x + 10 > 35[/tex]
Subtract 10 from both sides.
[tex]5x > 25[/tex]
Divide by 5 from both sides to isolate the x.
[tex]x > 5[/tex]
Step-by-step explanation:
[tex]5x + 10 > 35 \\ \: 5x > 35 - 10 \\ 5x > 25 \\ x > 5[/tex]
10x-2=3x-12 NoFraction
Answer:−1.429
I need brainliest
Step-by-step explanation:
What is the slope of the line?
y-4=-7(x-6)y−4=−7(x−6)
Answer:
-7
Step-by-step explanation:
That's what Khanacademy says
Answer:
-7
Step-by-step explanation:
I got it right
Which of the following lines is perpendicular to the line y = -3/5x + 1?
how can you get 6 with four 6s , the problem is
6 6 6 6 equals 6
Answer:
6666 divided by 1111 equals 6
Step-by-step explanation:
(19+2) exponent of 0 ????
Answer: 20
.....................
0.645 hm=
cm
Convert
Answer: 6450 cm
Step-by-step explanation:
James determined that these two expressions were equivalent expressions using the values of x = 4 and x = 6. Which statements are true? Check all that apply.
7 x + 4 and 3 x + 5 + 4 x minus 1
When x = 2, both expressions have a value of 18.
The expressions are only equivalent for x = 4 and x = 6.
The expressions are only equivalent when evaluated with even values.
The expressions have equivalent values for any value of x.
The expressions should have been evaluated with one odd value and one even value.
When x = 0, the first expression has a value of 4 and the second expression has a value of 5.
The expressions have equivalent values if x = 8.
Answer:
Two or more Algebraic expressions are said to be equivalent, if both the expression produces same numerical value , when variable in the expressions are replaced by any Real number.
The two expressions are
1. 7 x +4
2. 3 x +5 +4 x =1
Adding and subtracting Variables and constants
→7 x +5=1
→7 x +5-1
→7 x +4
→ When x=2,
7 x + 4 =7×2+4
=14 +4
=18
So, Both the expression has same value =18.
→So, by the definition of equivalent expression, when ,you substitute , x by any real number the two expression are equivalent.
Correct options among the given statement about the expressions are:
1.When x = 2, both expressions have a value of 18.
2.The expressions have equivalent values for any value of x.
3.The expressions have equivalent values if x = 8.
PLZ HELP! The equation is 7d+3n=85.
Answer:
Step-by-step explanation:
[tex]7d + 3n = 85 \\ 7d = 85 - 3n\\d = \frac{85}{7} - \frac{3}{7}x\\\\[/tex]
The slope of the equation is -3/7 and the y-intercept is 85/7
Select the conic section that represents the equation. y = 2x^2 + 7
Answer:
x intercept: none
y intercepts: (0, 7)
Step-by-step explanation:
Answer:
Parabola
Step-by-step explanation:
helppppppppppppppppppppppppppppppppppp
Answer:
Slope is 1/2
Step-by-step explanation:
Y-intercept is -3
In FGH, mF = 60, mG = 68, and mH = 52. Which side of FGH is the shortest? Pls help
Answer
FG
This is the answer that I got (apex)
Answer:
FG
Step-by-step explanation:
AP3X
pog
At El Rodeo it costs $8 for a burrito and $5 for a taco. Last week, El Rodeo made $1123 from selling burritos and tacos. If 76 burritos were sold, write and solve a linear equation to find how many tacos were sold.
SOLUTION:
Question Blank
type your answer...
tacos were sold
Answer:
103 tacos were sold
Step-by-step explanation:
8(76)+5x=1123
608+5x=1123
-608 -608
5x=515
/5 /5
x=103
Solve using the Quadratic Formula. 3x2 - 7x - 3 = 0
Answer:
[tex]\displaystyle x_1=\frac{7+ \sqrt{85}}{6}\approx 2.70\\\displaystyle x_2=\frac{7- \sqrt{85}}{6}\approx -0.37[/tex]
Step-by-step explanation:
Quadratic Formula
Given the second-degree equation:
[tex]ax^2+bx+c=0[/tex]
The solutions of the equation can be obtained by applying the formula:
[tex]\displaystyle x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}[/tex]
The equation to solve is:
[tex]3x^2-7x-3=0[/tex]
Which means the values of the coefficients are: a=3, b=-7, c=-3. Substituting the values in the formula:
[tex]\displaystyle x=\frac{-(-7)\pm \sqrt{(-7)^2-4(3)(-3)}}{2(3)}[/tex]
[tex]\displaystyle x=\frac{7\pm \sqrt{49+36}}{6}[/tex]
[tex]\displaystyle x=\frac{7\pm \sqrt{85}}{6}[/tex]
There are two real solutions for this equation:
[tex]\displaystyle x_1=\frac{7+ \sqrt{85}}{6}[/tex]
[tex]\displaystyle x_2=\frac{7- \sqrt{85}}{6}[/tex]
The approximate values of both roots are:
[tex]x_1\approx 2.70[/tex]
[tex]x_2\approx -0.37[/tex]
An observation deck extends 199 feet out above a valley. The deck sits 149 feet above the valley floor. If an object is dropped from the observation deck, its height h in feet, after t seconds, is given by h= -16t^2+149. How long will it take for the object to be 5 feet above the valley floor?
Answer:
Step-by-step explanation:
Give the height of the observation deck modeled by the equation
h= -16t^2+149 where t is in seconds;
To get the time it will take the object to be 5 feet above the valley floor, we wil substitute h = 5ft into the modeled equation and calculate t;
h= -16t^2+149
5= -16t^2+149
-16t^2 = 5-149
-16t^2 = -144
t² = 144/16
t² = 9
t = √9
t = 3secs
Hence the time it will take for the object to be 5 feet above the valley floor is 3secs
Given the function:
f (x) = (3 x + 4) minus (2 minus x)
Evaluate for f (5).
a.22
b.15
c.16
d.30
Answer:
A
Step-by-step explanation:
{8} ⊆ {7,8,9} true or false
the answer is false
.....................................
Answer:
Homework #1-18: Answer yes or no, if no give the reason
1) Is A ⊆ B given A = silver, B = {gold, silver, diamond}
A is not a set, so it can’t be a proper subset.
Answer: no, because A is not a set
3) Is C ⊆ D given C = {Phoenix}, D = {Phoenix, Glendale, Peoria, Scottsdale}
I need two rules to work.
C is a set so rule 1 is satisfied.
Every element of C is also an element of D, so rule 2 is satisfied.
Answer: yes
5) Is A ⊆ B given A = {2,3} , B = {1,2,3,4,5}
I need two rules to work.
A is a set so rule 1 is satisfied.
Every element of A is also an element of B, so rule 2 is satisfied.
Answer: yes
7) Is A ⊆ B given A = a, B = {| }
A is not a set, so it can’t be a proper subset.
Answer: no, because A is not a set
9) Is A ⊆ B given A = { }, B = {1,2,3,4,5}
Answer yes: the empty set is a subset of every set.
11) Is S ⊂ T given, S= ∅, T = {1,2,3,4,5}
Answer yes: the empty set is a subset of every set.
13) Is A ⊂ B given A = {1,2,3}, B = {3,2,1}
This is not a true statement. The sets are equal and this symbol does not allow sets to be equal.
Answer: no, sets are equal
15) Is C ⊂ D given C = {1,2,3,4,5}, D = {1,2,3,4}
Answer: no, C is not contained in D, so this is not true
17) Is A ⊂ B given A = {4,3,2,1 }, B = {1,2,3,4,5}
A is a set so rule 1 is satisfied,
A is contained in B so rule 2 is satisfied
A is not equal to B so rule 3 is satisfied
Answer: yes (all 3 rules are satisfied)
Homework #19 – 34: Determine which of these are true. (Choose every answer that is true, in
many instances there will be more than one correct choice.)
A = B, A ⊆ B, B ⊆ A, A ⊂ B, B ⊂ A, or none of these
19) A = {Trix, Captain Crunch, Rice Krispees} B = {Rice Krispees}
B is contained, but not equal to A. B is both a subset and a proper subset of A.
A is not contained in B
The sets are not equal.
Answer: B ⊆ A, B ⊂ A
Step-by-step explanation:
here all of it
