Answer:
y = 2
Step-by-step explanation:
Let's first write the equation of y = 12 in slope-intercept form. Slope-intercept form is represented as:
y = mx + b
Where...
m: slope
b: y-intercept (the y-value at where the line intercepts the y-axis)
(x, y): any coordinate on the line
This line has a slope of 0 and a y-intercept of 12, therefore its equation is:
y = 0x + 12.
Parallel lines have the same slope. Therefore the equation of the parallel line can be represented as:
y = 0x + b
We need to find b, or the y-intercept.
Let's substitute the point given to us into the equation.
Solve for the y-intercepty = 0x + b
2 = 0(3) + b
2 = 0 + b
b = 2
Therefore the equation of a line parallel to y = 12 that contains the point (3, 2) is y = 2.
Given right triangle ABC with altitude BD drawn to hypotenuse ACAC. If AD=4AD=4 and DC=9 ,DC=9, what is the length of BD?
(Note: the figure is not drawn to scale.) Please help ASAP will award 100 points
Answer:
6
Step-by-step explanation:
Answer:
6
Step-by-step explanation:
7th grade math help me please :))
Answer:
no because the absolute value of -7 is 7 which is greater than the absolute value of 6 which is 6.
Can someone help me out?
Answer:
16
Step-by-step explanation:
please mark me brainliest and 5 star
Answer:
16
Step-by-step explanation:
You add all the sides together hope it helps pls mark brainliest
its due soon help ill give brainliest
The price of a pair of headphones at Store A is 3/4 the price at Store B.
The price at Store A is $89.25. Find how much you save by buying the headphones at Store A
a. 119
b. 72
c. 29.75
Answer:
alt answer to give ya brainliest nxsdsvfkbjnvbc
Step-by-step explanation:
cnrgnsdmx
In the graph, the area below f(x) is shaded and labeled A, the area below g(x) is shaded and labeled B, and the area where f(x) and g(x) have shading in common is labeled AB.
Graph of two intersecting lines. The line f of x is solid and goes through the points 0, 4, and 4, 0 and is shaded below the line. The other line g of x is solid, and goes through the points 0, negative 1 and 2, 5 and is shaded below the line.
The graph represents which system of inequalities?
y ≤ −3x − 1
y ≤ −x − 4
y > −3x + 1
y ≤ −x − 4
y < 3x − 1
y ≤ −x + 4
y ≤ 3x − 1
y ≥ −x + 4
Answer:
y ≤ 3x − 1
y ≤ −x + 4
Step-by-step explanation:
Write the equation of the circle with center of 10-2 and a radius of 7
Answer:
(x-10)^2 + (y-2)^2 = 49
Step-by-step explanation:
I'm assuming that 10-2 means (10,2)
Equation of circle:
(x-a)^2 + (y-b)^2 = r^2
Plugging in the values that we know:
(x-10)^2 + (y-2)^2 = 7^2
(x-10)^2 + (y-2)^2 = 49
Hope this helps!
Can someone help me with this question?
a) The average rate of change of annual sales between 2017 and 2018 is 1.08%
b) The average rate of change of annual sales between 2017 and 2020 is -3.27%
Calculating average rate of changeFrom the question, we are to determine the average rate of change of annual sales
a) Between 2017 and 2018
Sale in 2017 = 367
Sale in 2018 = 371
The change in sales between the years = 371 - 367
Change in sales between the years = 4
Thus,
Average rate of change = 4/367 × 100%
Average rate of change = 1.09%
Hence, the average rate of change of annual sales between 2017 and 2018 is 1.08%
b) Between 2017 and 2020
Sale in 2017 = 367
Sale in 2020 = 355
Change in sales between the years = 355 - 367
Change in sales between the years = -12
Thus,
Average rate of change = -12/367 × 100%
Average rate of change = -3.27%
Hence, the average rate of change between 2017 and 2020 is -3.27%
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There are 120 students and 23 teachers going on a class trip. The buses used for the class trip hold at most 45 passengers. How many buses will be needed?
Answer: 4 busses if each bus only hold 45 passengers at most.
Step-by-step explanation:
120 students
23 teachers=143 people
143 divided by 3 busses is only 47 so 3
busses wouldn’t be enough
y is directly proportional to the square of x.
When y= 24, x= 2.
Find the value of y when x=4.
Answer:
y= 48
Step-by-step explanation:
X was doubled so i believe this is correct
Have a great day!!!
Use the figure and follow the directions below.
During a bake sale, dozen cookies were sold in hour. What is the unit rate for the dozens of cookies sold per hour?
Answer:
12:1
Step-by-step explanation:
Answer:
12:1
Step-by-step explanation:
Because 12 is the amount of cookies to the ratio of hours which is 1 therfore 12:1
Solve the system
4x+5x= -27
x+9y= 1
Answer:
x=-3, y = 4/9
Step-by-step explanation:
This is in equation form.
A line passes through the point (8,-4) and has a slope of -3/4
Write an equation in slope intercept form for this line.
Answer: y=-3/4x+2
Step-by-step explanation:
y=mx+b
y=-3/4x+b
-4=-3/4(8) +b
-4=-6+b
b=2
y=-3/4x+b
y=-3/4x+2
Solve for a
|6a + 3|
3
> 2
Answer:a> [tex]-\frac{7}{18}[/tex]
Step-by-step explanation:
(6a+3)3>2
Divide both sides by 3. Since 3 is positive, the inequality direction remains the same.
[tex]6a+3 > \frac{2}{3}[/tex]
Subtract 3 from both sides.
[tex]6a > \frac{2}{3} -3[/tex]
Convert 3 to fraction [tex]\frac{9}{3}[/tex]
[tex]6a > \frac{2}{3} -\frac{9}{3}[/tex]
Since [tex]\frac{2}{3} \frac{9}{3}[/tex]have the same denominator, subtract them by subtracting their numerators.
[tex]6a > \frac{2-9}{3}[/tex]
Subtract 9 from 2 to get −7.
[tex]6a > -\frac{7}{3}[/tex]
Divide both sides by 6. Since 6 is positive, the inequality direction remains the same.
[tex]a > \frac{-\frac{7}{3} }{6}[/tex]
Express [tex]a > -\frac{7}{3\frac{6}{1} }[/tex] and 6/1=6 as a single fraction.
[tex]a > \frac{-7}{3*6}[/tex]
Multiply 3 and 6 to get 18.
[tex]a > \frac{-7}{18}[/tex]
Fraction [tex]\frac{-7}{18}[/tex] can be rewritten as
[tex]-\frac{7}{18}[/tex]
by extracting the negative sign.
[tex]a > -\frac{7}{18}[/tex]
3. 32-(5.23) I need answers quick
Answer:
[tex] \sf \large \: - 31[/tex]
Step-by-step explanation:
3²−5(2³)
=9−5(2³)
=9−(5)(8)
=9−40
=−31
Solve the inequality. Choose the number line that represents the inequality.
n+5<7
Answer:
3
Step-by-step explanation:
3+5 =8>7
Answer:
N<2
Step-by-step explanation:
Como puedo calcular tasa de crecimiento?
Answer:
Si quiere decir en un gráfico, busque cuántas unidades se eleva la coordenada y, a continuación, se ejecuta (izquierda o derecha).
Si algo no suena lo siento mi español es malo. ;--;
hi loves is this correct?
Solve for X.
X^2 - 2x + 1 = 0
X= 1?
Answer:
yes x=1
Step-by-step explanation:
x[tex]x^{2} -2x+1=0\\(x-1)^{2}=0 x-1=0 \\x=1[/tex]
During a 7-year period, the amounts (in millions of dollars) spent each year on buying new vehicles N and used vehicles U by United States residents are modeled by the equations
N=−0.028t3+0.06t2+0.1t+17
U=−0.38t2+1.5t+42
where t=1 represents the first year in the 7-year period.
a. Write a polynomial that represents the total amount spent each year on buying new and used vehicles in the 7-year period.
b. How much is spent on buying new and used vehicles in the fifth year?
$ ???
Using addition of polynomials, it is found that:
a) The total amount is: T(t) = -0.028t³ - 0.32t² + 1.6t + 59.
b) $55.5 million was spent on buying new and used vehicles in the fifth year.
How do we add polynomials?To add polynomials, we have to combine the like terms, that is, the terms that have t elevated to the same power.
For this problem, the functions are given as follows:
N(t) = -0.028t³ + 0.06t² + 0.1t + 17.U(t) = -0.38t² + 1.5t + 42.Hence the total amount is:
T(t) = N(t) + U(t)
T(t) = -0.028t³ + 0.06t² + 0.1t + 17 - 0.38t² + 1.5t + 42.
T(t) = -0.028t³ + (0.06 - 0.38)t² + (0.1 + 1.5)t + 17 + 42.
T(t) = -0.028t³ - 0.32t² + 1.6t + 59.
For the 5th year, the amount is given by:
T(5) = -0.028(5)³ - 0.32(5)² + 1.6(5) + 59 = 55.5.
$55.5 million was spent on buying new and used vehicles in the fifth year.
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Miranda bought a brand-new cell phone. She noticed that the battery
consumes a rate of 5% per half an hour. Determine a function model that
represents the amount of battery left after a period of time.
The function model that represents the amount of battery left after a period of time is y = 1 ₋ 10%x
Given, Miranda bought a new cell phone which is consuming battery at a rate of 5% for every half an hour.
We are required to establish a function model that depicts how much battery is remaining after a certain amount of time.
Let y represent the amount of battery left.
and x represent the number of hours.
Then 5% per half an hour = 5% × 2 = 10%
Now frame the function model:
The amount of battery left = 1 ₋ (rate percent at which battery is being consumed)(The number of hours left)
⇒ y = 1 ₋ 10%(x)
⇒ y = 1 ₋ 10%x
As a result, we obtained the function model for the battery's remaining capacity as y = 1 ₋ 10%x
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Why is a scale factor of 2 the same as 200%?
Answer:
the action of deposing someone, especially a monarch.
Step-by-step explanation:
Wait so the sum of interior angles
====================================================
Work Shown:
n = number of sides = 9
S = sum of the interior angles of any polygon with n sides
S = 180(n-2)
S = 180(9-2)
S = 180(7)
S = 1260
The mean June midday temperature in Desertville is 36C and the standard deviation is 3C.Assuming this data is normally distributed, how many days in June would you expect the middaytemperature to be between 39C and 42C
Answer:
4
Step-by-step explanation:
Given that:
Mean temperature (m) = 36°C
Standard deviation (s) = 3°C
Temperature between 39°C and 42°C
Temperature < 39°
Probability of temperature < 39
P(x < 39)
The standardized score (Z) :
Z = (x - m) / s
Z = (39 - 36) / 3 = 1
p(Z < 1) = 0.84134 ( Z probability calculator)
Temperature < 42°
Probability of temperature < 42°
P(x < 42)
The standardized score (Z) :
Z = (x - m) / s
Z = (42 - 36) / 3 = 2
p(Z < 2) = 0.97725 ( Z probability calculator)
p(Z < 2) - p(Z < 1) = 0.97725 - 0.84134 = 0.13591
Hence, number of days in June = 30
Expected number of days = 30 * 0.13591 = 4.0773 = 4 (nearest whole number)
Jacob says that the product of a rational number and an irrational number is sometimes
rational and sometimes irrational. Which statement correctly describes whether Jacob is
correct or incorrect?
We need to know about rational and irrational numbers to solve the problem. Jacob is incorrect because the product of a rational and irrational number is always irrational.
Rational numbers are numbers that can be represented as p/q , p and q are integers where q is not equal to zero. Irrational numbers are real numbers that are not rational numbers, that cannot be represented as a division of two integers. When a rational and irrational number is multiplied, it always gives an irrational number. Let me use an example to explain this
2 is a rational number and [tex]\sqrt{2}[/tex] is an irrational number, the product of these two numbers is [tex]2\sqrt{2}[/tex] which is an irrational number.
Therefore we see that Jacob was wrong because the product of a rational and an irrational is always irrational.
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Converse statement. If this month is February then the next month is march
Answer:
If the month is march then the next month is February
Step-by-step explanation:
Please please help me!!
solve the system of equations by the substitution method.
{ 4x - 5y = 19
{ y = x - 4
select the correct choice below and, if necessary, fill in the answer box to complete your choice.
A. The solution is __ (Simplify your answer. Type an ordered pair.)
B. There are infinitely many solutions.
C. There is no solution.
Answer:
A. The solution is (1, -3)
Step-by-step explanation:
4x - 5y = 19
y = x - 4
Since the second equation already has y isolated, you can just plug that into the first equation:
4x - 5(x - 4) = 19
4x - 5x + 20 = 19
-x = -1
x = 1
Take your x value from the previous equation answer and plug that into the second equation:
y = (1) - 4
y = -3
Final solution:
(1, -3)
If you really want to know if you're correct, just do a LS/RS check for both equations:
4(1) - 5(-3) = 19
19 = 19
LS = RS
-3 = 1 - 4
-3 = -3
LS = RS
Answer:
A : 1,-3
so you substitute y= x-4 into 5y to make the equation look like 4x-5(x-4)=19 then you do -5 times (x-4) which should get you -5x and 20 so now the equation looks like this 4x-5x + 20 =19 then you combine like terms like 4x-5x which should get you -1x after you do that you subtract 20 from both sides of the equation and that should also get you -1 After you do all of that you divide by 1 on both sides and them you get your x term which is x= 1 now you can plug that into this equation y=x-4 now that equation will be y=1-4 and that is y=-3 so your answer is 1,-3
IF YOU DONT WANT TO DO ALL OF THAT BY HAND YOU CAN ALWAYS PLUG THAT EQUATION INTO DESMOS GRAPHING CALCULATOR AND YOU JUST HAVE TO FIND THE POINT WHERE THE LINE INTERSECTS
Julia the cat wants to climb a tree that is 73 ft high. Every day she climbs 11 feet, but then during the night she comes back down 7 feet. Assuming that Julia does not fall, how long will it take her to reach the top of the tree?
Answer:
17 days======================
Progress per day and night is:
11 - 7 = 4 ftNumber of days to climb the tree less 11 ft:
(73 - 11)/4 = 62/4 = 15.5 = 16 as whole numberJulia climbed in 16 days/nights:
16 * 4 = 64 ftOne more day is required after this:
16 + 1 = 17 daysWhat is the equation of the line in slope-intercept form? y = _ x + _
[2.1 + (8 - 4) - 1.25] = ?
Answer:
4.85
Step-by-step explanation:
Answer:
4.85
Step-by-step explanation:
[2.1 + 4 - 1.25]
= (6.1 - 1.25)
=4.85
4(x-1)-2(3x+5) =-3+1
Answer:
x= -8
Step-by-step explanation:
4(x-1)-2(3x+5)=-3+1
4x-4-6x-10=2
-2x-14=2
-2x=16
x= -8