Answer:
(-1;-3)
Step-by-step explanation:
[tex]\left \{ {{4(2x+y)=4*(-5)} \atop {3x-4y=9}} \right. \ => \ \left \{ {{8x+4y=-20} \atop {3x-4y=9}} \right. \ => \ \left \{ {{11x=-11} \atop {2x+y=-5}} \right. \ => \ \left \{ {{x=-1} \atop {y=-3}} \right.[/tex]
Suppose we want to choose 2 letters, without replacement, from the 4 letters A, B, C, and D.
Answer:
letter A
Step-by-step explanation:
because that's my favorite letter
In Exercises 9-12, tell whether the lines through the given points are parallel, perpendicular, or neither. Justify your answer 12. Line 1: (10, 5), (-8, 9) Line 2: (2, -4), (11, -6)
Answer:
They're parallel.
Step-by-step explanation:
The reason they're parallel is because they both have the same slope.
hey guys need help plese feeling like giving out mega points today
Answer:
The choice A.
Step-by-step explanation:
[tex] \frac{( \frac{a}{b} + 1) }{( \frac{b}{a} - 1) } \\ \\ \\ \frac{( \frac{a}{b} + \frac{b}{b}) }{( \frac{b}{a} - \frac{a}{a}) } = \frac{( \frac{a + b}{b}) }{( \frac{b - a}{a}) } \\ \\ \\ ( \frac{a + b}{b} ) \div ( \frac{b - a}{a} ) \\ \\ \\ (\frac{a + b}{b} ) \times ( \frac{a}{b - a} ) \\ \\ \\ = \frac{a(a + b)}{b(b - a)} [/tex]
I hope I helped you^_^
Belinda is thinking about buying a house for $286,000. The table below shows the projected value of two different houses for three years:
Number of years 1 2 3
House 1 (value in dollars) 294,580 303,417.40 312,519.92
House 2 (value in dollars) 295,000 304,000 313,000
Part A: What type of function, linear or exponential, can be used to describe the value of each of the houses after a fixed number of years? Explain your answer. (2 points)
Part B: Write one function for each house to describe the value of the house f(x), in dollars, after x years. (4 points)
Part C: Belinda wants to purchase a house that would have the greatest value in 25 years. Will there be any significant difference in the value of either house after 25 years? Explain your answer, and show the value of each house after 25 years. (4 points)
Answer: Part C: House 1 at 25 is at
$598820.5 (rounded to the
nearest cent) and House 2 is at
$511000. House 1 has a higher
value. I hope that helps
A square has a perimeter of 20 ft. What is the length of each side?
Answer:
5
Step-by-step explanation:
the length is 5 because each side with equal to 5
5+5+5+5=20
Show that 0.616 = 37/60
Answer:
77/125 = 37/60?
If this is a true or false problem it would be marked false.
anybody answer this question seriously please it has to be correct
Answer: that epuals 2/7
Step-by-step explanation:exam
What unit of measurement is used for liquid volume
Answer:
What unit of measurement is used for liquid volume? A Liter
need help what is this
Answer:
2nd option
Step-by-step explanation:
Substitute the values of x from the domain into f(x) for range
f(2) = 2³ + 1 = 8 + 1 = 9
f(3) = 3³ + 1 = 27 + 1 = 28
f(4) = 4³ + 1 = 64 + 1 = 65
range is {9, 28, 65 }
Answer:
hwhiwbshs bengshhwwvvw
Step-by-step explanation:
The average mark scores by 29 students in a science test was 56%. Jessica was sick, so she sat the
test later and scored 71%. Including Jessica's score, what was the new value of the mean mark?
Answer:
56.5%
[tex] \frac{29 \times 56 + 71}{30 \times 100} = 0.565 = 56.5\%[/tex]
The x-intercept of f(x) is 5. If g(x)=f(x+2), then what is the x-intercept of g(x)?
Answer:
To find the
x- intercept, we set y=0 and solve for x:0=.5x−3
3=.5x
6=x
So. the x-intercept is
(6,0)
To find the
y-intercept, it's a similar system We set x=0 and solve for y this time.
y=.5⋅0−3
y=−3
That was easy :)
So, our y-intercept is (0,−3)
Just to double check our work, let's graph the equation and see the
x and y- intercepts
graph{y=.5x-3}
Yep,
(6,0) and (0,−3). We were right!
Add 2 1/2 + (-3 1/3). Write your answer as a mixed number in simplest form.
Answer:
Exact Form: -⅚
Decimal Form: -0.83 repeating
MARKING BRAINLIEST: Can someone create a online graph - More information in the screenshot below
Answer:
Step-by-step explanation:
make a graph of what we need more of an explanation
Factor the following expression completely.
16x^5-x^3
A. 1343 1) (4x + 1)
B. 13(41 – 1)
C. (413 – 22)
D. 13(16x2 – 0)
X^(16x^2-1) factor the expression
The answer to the graph
X^3(4x-1)(4x+1)
Explain the parts of an angle
Answer:
line segments are the lines
rays are line segments that have one vertex
a vertex is the endpoint of a line(usually represented by a dot)
Step-by-step explanation:
Determine the type of triangle that is drawn below.
Answer:
scalene acute
Step-by-step explanation:
all the angles are lower than 90º
no two angles are the same
Help WILL NAME BRAINLIEST
Liam is a tyre fitter question
Answer:
a) 168
b) 3
Step-by-step explanation:
a) 56÷4=14 14×12=168
b) 56÷4=14 56-14=42 42÷14=3
Take these points. 25 of them. Will Thanks give brainiest and 5 star
Answer:
What do you need help with? Please go easy on me. I'm just a kid.
Step-by-step explanation:
3over 7 = blank over 35
Let blank be x
[tex]\\ \sf\longmapsto \dfrac{3}{7}=\dfrac{x}{35}[/tex]
[tex]\\ \sf\longmapsto 7x=35(3)=105[/tex]
[tex]\\ \sf\longmapsto x=\dfrac{105}{7}[/tex]
[tex]\\ \sf\longmapsto x=15[/tex]
What are the values of each Halloween icon? (Math Logic Puzzles) (78 POINTS)
Answer:
Step-by-step explanation:
Fred's family wants to switch cell phone plans. Hot Spot Mobile is offering a one-time discount of $50 for families that use multiple phones with their service. Fred's family uses 5 phones, and the salesperson said the first month's payment, which includes the discount and the regular monthly rate for each phone, will be $62.25. What is the regular monthly rate for each phone?
Answer:
22.45
Step-by-step explanation:
ixl told me a
Answer:
$22.45 per month
Step-by-step explanation:
Fred's family will pay for cell service for 5 phones at a regular monthly rate of c dollars for each phone. They will also receive a discount of $50. The first month's payment will be $62.25. This equation represents the situation.
5c
−
50
=
62.25
monthly cost of cell service for 5 phones
one-time discount
first month's payment
Now, solve the equation for c.
5c–50
= 62.25
5c
= 112.25 Add 50 to both sides
c
= 22.45 Divide both sides by 5
The regular monthly rate for each phone is $22.45.
the area of a square is 400 units. if the length of each side of the square increased by one unit, would its area be a rational number
Answer:
Yes, the area of the square would be a rational number.
Step-by-step explanation:
Area of square = 400 units² = x²
x = one side length of square
x = √400 = 20 units
Increase each side length by 1 unit.
New side length = 21 units
Area of new square = 21² = 441
441 is a rational number because the square root of 400 is a rational number.
√400 = 21
Therefore: If the length of each side of the square increased by one unit, the area of the square would be a rational number. The area of the square would still be a perfect square.
Hi, I need help with this question and I don't it is right or wrong answer pls correct me and explain.
Answer:
x=5.5
Step-by-step explanation:
2x+3.50=14.50
2x=14.50-3.50
2x=11
x=11/2
x=5.5
Option B
Let's Find x
[tex]\\ \sf\longmapsto 2x+3.50=14.50[/tex]
[tex]\\ \sf\longmapsto 2x=11[/tex]
[tex]\\ \sf\longmapsto x=11/2=5.5[/tex]
What is the factored form of this expression?
4t2 − 27t + 18
A.
(4t − 18)(t − 1)
B.
(4t − 3)(t − 6)
C.
(2t − 9)(2t − 2)
D.
(2t − 6)(2t − 3)
Answer:
B
Step-by-step explanation:
Answer:
Have a great rest of your day :)
Step-by-step explanation:
Factorize:
2ax-6ay+bx-3by
Answer:
2ax − 6ay + bx − 3
Step-by-step explanation:
The expression is not factorable with rational numbers
Answer:
Step-by-step explanation:
2a(x - 3y) + b(x - 3y)
Youth Group Trip
The youth group is going on a trip to an amusement park in another part of the state. The trip costs each
group member $150, which includes $85 for the hotel and
two one-day combination entrance and meal plan
passes. How much is the park per person?
a Write an equation representing the cost of the trip. Let P be the cost of the park pass. What’s the answer?!?!
Answer:
$32.50 = p
Step-by-step explanation:
$150 = 85 = 85 +85 + 2p
65/2 = 2p/2
Which algebraic expression represents
the phrase "half the value of x" ?
Answer:
½x - 40
Step-by-step explanation:
5 1/2+4 3/4?
Please show work
Answer:
10 1/4
Step-by-step explanation:
= 11/2 + 4 3/4
= 11/2 + 19/4
= 41/4
=10 1/4
what is the equation of the line that passes through the point(-5,-4) and has a slope of -3/5?
Answer:
y= mx+c
-4= -3/5(-5) + c
-4= -3/5 *-5+ c
-4=3+c
-4-3=c
-7=c
therefore the equation of the line is y=-3/5x-7
Step-by-step explanation:
the equation of a line is
y=mx +c
where y is the y coordinate
where m is the slope
where x is the x coordinate
where c is the y- intercept