Answer:
15
Step-by-step explanation: i'm not explaining why
A pair of linear equations is shown:
y = −3x + 5
y = x + 2
Which of the following statements best explains the steps to solve the pair of equations graphically?
On a graph, find the point of intersection of two lines; the first line has y-intercept = 5 and slope = −3, and the second line has y-intercept = 2 and slope = 1.
On a graph, find the point of intersection of two lines; the first line has y-intercept = −3 and slope = 5, and the second line has y-intercept = 1 and slope = 2.
On a graph, find the point of intersection of two lines; the first line has y-intercept = −5 and slope = 3, and the second line has y-intercept = −2 and slope = −1.
On a graph, find the point of intersection of two lines; the first line has y-intercept = 3 and slope = −5, and the second line has y-intercept = −1 and slope = −2.
Answer:
On a graph, find the point of intersection of two lines; the first line has y-intercept = 5 and slope = −3, and the second line has y-intercept = 2 and slope =
Step-by-step explanation:
Mr Goldstein is driving from Houston. The equation y = -45x + 270 represents the numbers of miles that he still has to travel after driving for x hours. Find and intercept the slope and y-intercept of the line that represents this situation.
Step-by-step explanation:
The y-intercept formula is y=mx+b
(m) is the slope
(b) is the y intercept
So in the given formula -45 would be the slope and 270 is the y intercept.
Hope this helps! If you have any questions on how I got my answer feel free to ask. Stay safe!
Answer:900
Step-by-step explanation:
Winston needs at least 80 signatures from students in his school before he can run for class president. He has 23 signatures already. He and two of his friends plan to get the remaining signatures during lunch. If each person gets the same number of signatures, which inequality can Winston use to determine the minimum number of signatures each person should get so he can run for class president?Solve the inequality algebraically.
Answer:
At least 19 signatures.
Step-by-step explanation:
Winston already has 23 signatures, so he has 57 left to go (80 - 23).
There are 3 people collecting signatures, so the equation will be as following:
3x ≥ 57
To break down this equation, 3x because each person is collecting x number of signatures, and 57, because if you add those signatures upp, then it will have to be at least 57, therefore the operator should be ≥ .
If you solve 3x ≤ 57, then you will find that x ≥ 19, so they each have to have at least 19 signatures.
I hope that you found this helpful!
Question 1:
Solve for k :
Answer:
Step-by-step explanation:
Equation:
-3k = 108
We need to separate -3 from k. So we must do the inverse operation.
Divide both sides by -3
k = -36
Hope this helps :)
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f(x) = 5x^3 + 2x^2 – 7x + 4
g(x) = 3x – 7
Find (f +g)(x)
Answer:
d
Step-by-step explanation:
I am pretty sure that is the answer
A function assigns the values. The value of (f +g)(x) for the two given functions f(x)=5x³+2x²–7x+4 and g(x)=3x–7 is 5x³ + 2x² – 4x – 3. The correct option is D.
What is a Function?A function assigns the value of each element of one set to the other specific element of another set.
Given the two functions such as,
f(x) = 5x³ + 2x² – 7x + 4
g(x) = 3x – 7
Now, the value of (f +g)(x) is the value of the function which is produced when the two of the given function are added together, therefore, the value of the added function can be written as,
(f +g)(x) = f(x) + g(x)
(f +g)(x) = (5x³ + 2x² – 7x + 4) + (3x – 7)
= 5x³ + 2x² – 7x + 4 + 3x – 7
= 5x³ + 2x² – 4x – 3
Hence, the value of (f +g)(x) for the two given functions f(x)=5x³+2x²–7x+4 and g(x)=3x–7 is 5x³ + 2x² – 4x – 3.
Learn more about Function:
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answer please below!!!
Answer:
False because of the way your trionomial is setup
given 2 variables and you only have one
Step-by-step explanation:
8) Kim rolls a white die and a red die. What is the probability that the sum of her two dice
is 10?
Answer:
The probability is really close.
Step-by-step explanation:
10/2 = 5. So both die must land on a 5.
Answer:
there is a 18.75% chance of rolling a sum of 10
Step-by-step explanation:
Find the new price for the markdown given. Round to the nearest cent if necessary.
$14.99 marked down 20%
Answer:
$11.99
Step-by-step explanation:
Gotdam.n we know x and juice are
dead,you ain't gotta post on here too
Answer:
........... hi ...........
Step-by-step explanation:
hmm
well we know they are dead, but.....
I never listened to any songs
Which inequality contains (0,0)
Answer:
D
Step-by-step explanation:
D
58% of what number is 48?
Answer:
82.758620689655
Step-by-step explanation:
48/0.58=82.758620689655
A glass is 1 4 full. Then 24cmº of orange juice is poured in.
The glass is now 2 5 full.
What is the total volume of the glass?
Answer:
160cm^3
Step-by-step explanation:
1/4 + 24cm = 2/5
5/20 +24cm = 8/20
24cm = 3/20
8cm = 1/20
160cm^3= 20/20 = full cup
b The lines are translations of each other
The lines are reflections of each other
d They have the same y-intercept
e a
Both lines have a positive slope.
с
Answer:
A, B, E
Step-by-step explanation:
The slope is the same (1/4x)
it is a translation given the y intercept moved it 5 units
they are both positive
A quadratic function is increasing to the left of x = 2 and decreasing to the right of x =2. Will the vertex be the highest or lowest point on the
graph of the parabola? Explain.
9514 1404 393
Answer:
highest point
Step-by-step explanation:
If the slope goes from positive to negative as x increases, the slope of the slope is negative. That means the curve opens downward. A parabola that opens downward has a vertex that is the highest point on the graph.
is x=2y a proportional relationship??
Answer:
yes
Step-by-step explanation:
yes
x= y*something is proportional
x=sometting /y , will be invers proportional
Last Sunday 1,675 people visited the amusement park. 56% of the visitors were adults, 16% were teenagers, and 28% were children ages 12 and under. Find the number of adults, teenagers, and children that visited the park. *
Answer:
56
Step-by-step explanation:
56Step-by-step explanation 3x12=36 36+20=56
If the point (0, 20) is the y-intercept of the parabola with the vertex is (8, -12), What is the equation for this parabola.
Answer:
f(x) = ¹/₂(x - 8)² - 12Step-by-step explanation:
f(x) = a(x - h)² + k - vertex form of the equation of the parabola with vertex (h, k)
so the equation of parabola with the vertex (8, -12) is
f(x) = a(x - 8)² - 12
The point (0, 20) is the y-intercept means if x=0 then f(x)=20
20 = a(0 - 8)² - 12
20 +12 = 64a - 12 +12
32 = 64a
a = ³²/₆₄ = ¹/₂
Therefore the equation (in vertex form) of parabla is:
f(x) = ¹/₂(x - 8)² - 12
What is the slope of the line?
I WILL MARK AS BRAINLY
Answer:
[tex]\frac{4}{7}[/tex]
Step-by-step explanation:
In order to find the answer to this question you must choose two points anywhere on this line as long as the line intercepts then solve for slope.
slope = change in y / change in x
[tex]slope = \frac{y2-y1}{x2-x1}[/tex]
[tex]P = (-1,-3)[/tex]
[tex]P=(3,4)[/tex]
Substitute:
[tex]\frac{3--1}{4--3}[/tex]
Solve:
[tex]3--1=3+1=4[/tex]
[tex]4--3=4+3=7[/tex]
[tex]=\frac{4}{7}[/tex]
Hope this helps.
The college student who is looking for a data plan for her cell phone found a third option,
which also offers a 2 gigabyte monthly allowance for data.
The monthly cost of this option can be represented by function C defined by:
C(x) = 30x + 5, where x is the gigabytes of data used over the monthly allowance.
1. Find C(0.7) and explain what it means in this situation,
Answer:
C(0.7) = 26
Step-by-step explanation:
Given:
C(x) = 30x + 5
where,
x = gigabytes of data used over the monthly allowance.
1. Find C(0.7) and explain what it means in this situation
C(0.7) means he used 0.7 gigabytes of data over the monthly allowance
Substitute x = 0.7 into the equation to find the monthly cost of the option
C(x) = 30x + 5
C(0.7) = 30(0.7) + 5
= 21 + 5
= 26
C(0.7) = 26
When x = 0.7, his total cost will be 26
If we dilate a triangle with a scale factor of 3 how can we calculate the side lengths of the new triangles
Answer:
Option 2
Step-by-step explanation:
1. The ratio of boys to girls in the sixth grade is 2 : 3.
a. If there are 24 boys, how many girls are there?
b. If there are 80 students, how many are girls?
c. If there are 75 students, how many more girls are there than
boys?
Answer:
a. 36 girls
b. 48 girls
c. 15 more girls than boys
Step-by-step explanation:
a. if the ratio for the question is 2:3 with a refernce ratio of 24:X, with cross multiplication we find out the x=36
b. now we must separate 80 into the 2:3 ratio making 32:48 with 48 girls
c. the same thing will be done with 75, making its 2:3 ratio 30:45, to find the difference of the two numbers you must subtract, this shows that the difference is 15 more girls.
3x=9+9x what does x equal?
Answer:
Exact Form:
X= - 3/2
Decimal Form:
X= -1.5
Mixed Number Form:
X= - 1 1/2
Step-by-step explanation:
Find the slope of the line between y = 1/8x -1
Answer:
x/8 -1
Step-by-step explanation:
1.45 is what percent of 116?
( please show work)
Answer:
suppose 1.45 is x % of 116, so
116 *x/100=1.45
x=1.45*100/116
x=145/116
x=1.25 %
Step-by-step explanation:
En tu trabajo de ciencias te toco realizar un experimento de cultivó de hongos en una pieza de pan de harina de trigo y una tortilla de maiz. La secuencia de revisión para la toma de datos será, en el primer caso, cada 15 dias; y en el otro, cada 20 por tres meses. ¿A los cuantos días te tocaría revisar ambos cultivos?
Responder:
60 días
Explicación paso a paso:
Primer caso = cada 15 días
Segundo caso = cada 20 días
El número de días en los que habrá que comprobar ambos cultivos se puede obtener encontrando el mínimo común múltiplo de 15 y 20
Múltiplo de:
15:15, 30, 45, 60, 75, 90, 105
20:20, 40, 60, 80, 100, 120
El mínimo común múltiplo de 20 y 15 es 60
El día en el que habrá que controlar ambos cultivos es de 60 días
HELP PLEASE. Will mark brainliest
Answer choices
1.) 1/12
2.) 1/6
3.) 1/3
Answer:
1/12
Step-by-step explanation:
Find the square of 14 without actual
multiplication
Answer:
196 is the Answer
Step-by-step explanation:
Answer:
144
Step-by-step explanation:
=We know that 13+1=14
=(10+2)square
=(a+b)square = a square +b square +2ab
=10square + 2square +2×10×2
=100+40+4
=144
Helpppppp............
Answer:
i think it is a or c i hope that helps a little
Answer:
Answer is B, V = π(7)² · 20
Step-by-step explanation:
the formula for a cylinder is V = πr²h
So, from here you just plug in numbers.
but for "r" you need to take 14 and divide it by 2 since it is in the form of a diameter which is different to a radius or "r".
14/2 = 7
Now, you can plug in numbers,
V = π(7)² · 20
what Is thee error and the solution
Answer:
X=5
Step-by-step explanation:
Multiply by 3 first
1/3 + (2/5)
9 2/6 + 7 1/6
7 1/4 - 4 5/8
2 1/4 - 1 3/4
3/12 x 4/21
-5/8 x 3
3/4 divided by 2 3/5
5/6 divided by 2
Answer:
+89
Step-by-step explanation: