Answer:
Option C and Option D have exactly one solution.
Step-by-step explanation:
The equation will have exactly one solution when it completely solves and we get value of x.
Checking all choices
(Choice A)
-19x + 18 = -19x + 18
-19x+19x=18-18
0=0
(infinite solutions)
(Choice B)
-19x -18 = -19x + 18
-19x+19x=18+18
0≠36
(no solution)
(Choice C)
19x + 18 = -19x + 18
19x+19x=18-18
38x=0
x=0
(One solution)
(Choice D)
19x - 18 = -19x + 18
19x+19x=18+18
38x=36
x=36/38
x=18/19
(One solution)
So, Option C and Option D have exactly one solution.
7) Select the best method to solve the system.
3x+y=7
2x=3y-4
*elimination
*substitution
Answer:
substitution
Step-by-step explanation:
I would choose substitution because the first equation can easily be set in terms of y, then substituted into the second equation, while to eliminate you would have to multiply on of the equations by a number and make it negative in order to eliminate.
Aneil wants to plant tomato plants and lettuce plants in a 60-square-foot garden. The tomato plants take up 2 square feet, and the lettuce plants take up 3 square feet. The equation 2x + 3y = 60 describes the number of tomato plants, x, and lettuce plants, y, that Aneil can plant in the garden. Graph this function and find the intercepts. What does each intercept represent?
Step-by-step explanation:
The more regular way of presenting such a graph is y = -2/3 x + 20
(Put the x on the right and made sure that the y has a coefficient of 1.)
Coefficient means the number in front of the letter (in this case).
x intercept = 30
(30,0)
y intercept = 20
(0,20)
The intercepts mean
The y intercept means the whole garden contains nothing but lettuce. (20)
The x intercept means the whole garden contains nothing but tomatoes.(30)
4)
- 10x – 5x = 45
Solve the equation
[tex]\textsf{Hey there!}[/tex]
[tex]\mathsf{-10x-5x=45}[/tex]
[tex]\textsf{Combine your like terms: \mathsf{(-10x -5x)}}[/tex]
[tex]\mathsf{(-10x - 5x) = -15x}[/tex]
[tex]\mathsf{New\ equation: -15x=45}[/tex]
[tex]\mathsf{\bf{DIVIDE}\ \mathsf{\ both\ sides\ by\ -15}}[/tex]
[tex]\mathsf{\dfrac{-15x}{-15}=\dfrac{45}{15}}[/tex]
[tex]\mathsf{\bf{Cancel\ out:}}\mathsf{\ \dfrac{-15}{-15}\ because\ that\ gives\ you\ }[/tex]
[tex]\mathsf{\bf{Keep:}\mathsf{\dfrac{45}{-15}\ because\ that\ solves\ for\ x}}[/tex]
[tex]\mathsf{New\ equation: x = \dfrac{45}{-15}}\\\\\mathsf{x = 45\div-15\rightarrow \underline{\bf{-3}}}[/tex]
[tex]\huge\text{Thus, x = -3}\checkmark[/tex]
[tex]\boxed{\boxed{\mathsf{Thus,\ your\ answer\ is: \boxed{\boxed{\text{\huge{\bf{x = -3}}}}}}}}\checkmark[/tex]
[tex]\textsf{Good luck on your assignment and enjoy your day!}[/tex]
~[tex]\frak{LoveYourselfFirst:)}[/tex]
-4/2/5 = -3/1/5 + 7/10g
Answer:
g=12/7
Step-by-step explanation:
Which ordered pairs do not belong to a linear function in the form below?
y = kx + b
A. (-1, -1); (0, -1)
B. (-1, -1); (-1, 1)
C. (1, 1); (0, -1)
D. (1, 1); (-1, -1)
Answer:
its D
Step-by-step explanation:
D!!!
Answer:
D
Step-by-step explanation:
Sasha has $55 to spend on clothes. She wants to buy a pair of jeans for $27 and spend the rest on t-shirts. Each t-shirt costs $7. Which inequality represents the number of t-shirts she can purchase? (1 point)
Answer:
well let's start by taking 27 away from 55 to get 28 so we now have $28 to spend on shirts next divided 28 from 7 and you will get your answer
Step-by-step explanation:
step one- 55-27
step two 28÷7
help me I don’t wanna fail mann
Answer:
x=6
∠TSU=12x=12(6)=72
Step-by-step explanation:
∠TUS+∠STU+∠TSU=180
∠TUS+12x+81=180
∠TUS=99-12x
∠TUS+∠TUV=180
99-12x+24x+9=180
108+12x=180
12x=72
x=6
∠TSU=12x=12(6)=72
There you go. Try and use these solutions to solve others for yourself. You got it.
Answer:
x = 6°∠TSU = 72°Step-by-step explanation:
Angle TUV is exterior angle to triangle TUS. Exterior angle measure is equal to sum of non-adjacent interior angles:
∠TUV = ∠STU + ∠TSU24x + 9 = 81 + 12xSolving for x
24x - 12x = 81 - 912x = 72x = 72/12x = 6°Finding angle measure of ∠TSU
∠TSU = 12*6° = 72°The points in the table lie on a line. Find the slope of the line.
X
-3
2
7
12
у
0
2
1
6
The slope of the line is
N
Answer:
n
Step-by-step explanation:
50 - 4 > 12 OR 12x +5< -4
Answer:
Step-by-step explanation:
5x - 4 > 12
5x > 12 + 4
5x > 16
x > 16/5
12x + 5 < -4
12x < - 4 - 5
12x < - 9
x < - 9/12
x < - 3/4
Option A is the correct answer
Find the inverse of the function. *
Answer:
C.
Step-by-step explanation:
1.) switch x and y
x=(7y+18)/2
2.) multiply both sides by 2
2x=7y+18
3.) subtract 18 from both sides
2x-18=7y
4.) divide both sides by 7
(2x-18)/7=y
The volume of a cylinder = ar2h. Use 3.14 for A. What is the volume of this cylinder? You may use the calculator tool in the menu.
Answer:
{Height and radius not given}
need rn! worth 30
What is the value of T(−4) when T(x)=−x−2?
Answer:
Step-by-step explanation:
ASAP 20 points -0.45x + 0.33 = -0.66 whats x
Answer:
x=2.2
Step-by-step explanation:
calc
factorise 12d²-19d+5
Answer:
4d99982726629161619172928227
Step-by-step explanation:
di ko alam Ang sagot
What property would you use to solve m+6=−4?
Answer:
m = -10
General Formulas and Concepts:
Order of Operations: BPEMDAS
Properties
Subtraction Property of EqualityStep-by-step explanation:
Step 1: Define equation
m + 6 = -4
Step 2: Solve for m
Subtract 6 on both sides: m = -10Step 3: Check
Plug in m to verify it's a solution.
Substitute: -10 + 6 = -4Add: -4 = -4Evaluate and simplify the following complex fraction.
Answer:
-10/7
Step-by-step explanation:
(-5/7)/(2/4) = (-5/7)/(1/2) = (-5/7)*(2/1) = -10/7
The scale drawing of a rectangular city park measures 10.0 cm(width) by 5.0 cm(length). The scale of the drawing is 1.0 cm = 4.5 meters. What is the actual length of the park?
Answer:
given us,
width= 10.0
length= 5.0
here,
w×d= 10.0× 5.0
= 50
now
cm/ m
=1.0/ 4.5
= 2.22
w×d x cm.m× 100
50/ 2.22× 100
2252.25
Step-by-step explanation:
we have to solve and multiply
A small ice cream cone costs $2.00, a medium costs $2.75, and a large costs $3.25. Special toppings cost
extra. Melanie's medium cone with 2 toppings cost $3.35. What is the unit rate of cost per number of toppings
for a medium cone?
Answer:
0.30 per topping
Explanation:
3.35 - 2.75= 0.60
0.60 / 2 = 0.30
pls help lol uh
thanks if you do im very confused
Answer:
I think it is b
Step-by-step explanation:
Answer:
B
graph B represents 1/2#1/6
1/2#1/6=3
A group of students is arranging squares into layers to create a project. The first layer has 4 squares. The second layer has 8 squares. Which formula represents an arithmetic explicit formula to determine the number of squares in each layer?
f(1) = 4; f(n) = 4 ⋅ d(n − 1), n > 0
f(1) = 4; f(n) = 4 ⋅ d(n + 1), n > 0
f(1) = 4; f(n) = 4 + d(n + 1), n > 0
f(1) = 4; f(n) = 4 + d(n − 1), n > 0
Answer:
f(1) = 4; f(n) = 4 + d(n - 1), n > 0.
Step-by-step explanation:
This arithmetic sequence has a common difference of d with first term = 4.
f(1) = 4; f(n) = 4 + d(n - 1), n > 0.
Answer:
D)
Step-by-step explanation:
I took the test.
can yall help me lol I have to finish this
Answer:
21/10 mph
Step-by-step explanation:
When you divide a fraction with another fraction, the number after the division sign gets flipped (meaning that the numerator and denominator switch so 1/2 would be 2/1)
So using that we can solve this:
7/5 / 2/3
7/5 * 3/2
21/10 miles per hour
Write an equation in slope-intercept form of the line that passes through the points ( 0, 1 ), ( 4, 2 )
Slope-Intercept Form - Y = Mx + b
Y = 1/4x + 1
A lines slope is 6 and it's y-intercept is 5 what is the equation in slope-intercept form
Answer:
y=6x+5
Step-by-step explanation:
Please help me solve this?
Answer:
12[tex]x^{4}[/tex]y[tex]z^{7}[/tex]√3x
Step-by-step explanation:
2√108[tex]x^{9}[/tex]y²[tex]z^{14}[/tex]
so you will need two of something to take one out from under the squareroot
we can rewrite [tex]z^{14} = z^{7} *z^{7}[/tex] so we can take a [tex]z^{7}[/tex] out
we can rewrite y² as y*y so we can take a y out
we can rewrite [tex]x^{9}[/tex] as [tex]x^{4} *x^{4} *x[/tex] so we can take a [tex]x^{4}[/tex]out
for 108 think what is the smallest prime number that divides 108 and is 2
108= 2*54
same algorithm, smallest prime number that divides 54 is 2 so
108=2*2*27
same algorithm, smallest prime number that divides 27 is 3 so
108=2*2*3*9
we know 9 is 3*3 so
108=2*2*3*3*3 we can take out one 2 and one 3
put them all toghether now
2*2*3*[tex]x^{4}[/tex]*y*[tex]z^{7}[/tex]√3x = 12[tex]x^{4}[/tex]y[tex]z^{7}[/tex]√3x
4. (03.06 MC)
A cylinder and a cone have the same diameter: 8 inches. The height of the cylinder is 5 inches. The height of the cone is 15 inches.
Use n = 3.14.
What is the relationship between the volume of this cylinder and this cone? Explain your answer by determining the volume of each and comparing them
Step-by-step explanation:
Volume of a cylinder is:
V = πr²h
V = (3.14) (4 in)² (5 in)
V = 251.2 in³
Volume of a cone is:
V = ⅓ πr²h
V = ⅓ (3.14) (4 in)² (15 in)
V = 251.2 in³
The volumes are equal.
How much is 10% of $30
Write the Linear equation in Standard form.. Each pair of Socks in store cost 75php, and each pair of gloves costs 50php. If you want to spend exactly 425php, write an equation in standard form modeling this situation. Let x represent the number of pairs of socks you buy, and y represent the number of pairs of gloves you buy.
Answer:
An equation in standard form modeling this situation is:
75x + 50x = 425
Step-by-step explanation:
Let
x represent the number of pairs of socks you buy
y represent the number of pairs of gloves you buy
Each pair of Socks in store cost 75php, and each pair of gloves costs 50php. If you want to spend exactly 425php.
The equation is given as:
75php × x + 50php × y = 425php
= 75x + 50y = 425
Therefore,
the equation in standard form modeling this situation is:
75x + 50x = 425
In Triangle ABC, ∠A + ∠B = 65° and ∠B + ∠C = 140°.Find the value of ∠B and ∠C.
Can anybody pls give the answer fast...
A + B = 65...Equation 1
B + C = 140...Equation 2
Solve Equation B for C.
C = 140 - B
The sum of the angles in a triangle is 180 degrees.
We know that A + B = 65.
65 + C = 180
We know that C = 140 - B.
65 + 140 - B = 180
205 - B = 180
-B = 180 - 205
-B = -25
B = -25/-1
B = 25
Plug B = 25 into B + C = 140 to find angle C.
25 + C = 140
C = 140 - 25
C = 115
Angle B = 25°.
Angle C = 115°.
Understand?
what is this plug's brand?
Answer:
ce smart home
Step-by-step explanation:
it says it righ tthere
Answer:
the brand?? it says it right there if I'm not wrong lol "ce smart home"
find the slope from the graph (help please)