Answer:
if the graph of a proportional relationship passes through the point (1 , R) then r equals the slope and the unit rate , which is $4.75 per min
Step-by-step explanation:
witch expression is equivalent to |-5| + |3|
A -8
B -2
C 2
D 8
Answer:
D
Step-by-step explanation:
WHEN APPLY MOD | | , we consider making every values in it positive.
so, equation becomes:
+5 + (+3)
= +8
therefore, D 8
Answer:
D
Step-by-step explanation:
The absolute value function always gives a positive result, that is
| - a | = | a | = a
Given
| - 5 | + | 3 |
= 5 + 3
= 8 → D
Which expression represents a positive number? A. -9.8 x (-23.5) B. 9.8 x (-23.5) C. 23.5 x (-9.8) D. -23.5 x 9.8
Answer: Option A
Step-by-step explanation: if we multiply two negative numbers we get a positive result, pls give brainliest
Answer:
A represents a positive number
Step-by-step explanation:
(−9.8) x (-23.5) = 230.3x
f(n) = n^3– 2n
g(n)= 2n + 2
Find (f •g)(n)
Answer:
[tex]\boxed{(f~.~g)(x) = 2n^4 + 2n^3 - 4n^2 -4n}[/tex]
.
Step-by-step explanation:
We know that
[tex]f(n) = n^3 - 2n[/tex]
[tex]g(n) = 2n + 2[/tex]
.
So
[tex](f~.~g)(x) = f(n)~.~g(n)[/tex]
[tex](f~.~g)(x) = (n^3-2n)(2n + 2)[/tex]
[tex](f~.~g)(x) = n^3(2n + 2) - 2n(2n + 2)[/tex]
[tex](f~.~g)(x) = 2n^4 + 2n^3 - 4n^2 -4n[/tex]
Answer:
2jj2j wnqj qkwk abaia aow w wka a9w wjw a8uaaia sks sis s8siwobsisi shkahza a
Step-by-step explanation:
bs ak la ya s dyua youa au ab fusn aigska
help 6th grade math i will give brainliest
Answer:
1. = (all numbers powered by zeros are 1)
2. > (the smaller the number gets when a number powers a fraction)
3. > (-5)^2 will equal 25 but -5^2 will equal =25
Answer:
1. =
2. >
3. <
Step-by-step explanation:
2.5^0 = 1
1.5^0 = 1
(1/3)^4 = 0.0123
(1/3)^5 = 0.0041
5^1 = 5
-5^2 = 25
hope this helps. i am in algebra two so you can trust my answer. Happy Holidays! stay safe
Help need in 29 minutes
Answer:
d)
c)
Step-by-step explanation:
any more help just ask :)
does that graph show a function explain how
A. No; the graph fills the vertical line test
B. Yes; the graph passes the vertical line test test
C. No; there are y-values that have more than one X-value
D. yes; there are no Y-values that have more than one X-value
Eric can read 3 pages in 7 minutes. Rob can read 8 pages in 14 minutes________. Response area is the faster reader because______ Response area
Answer:
Rob.
Step-by-step explanation:
If we take Eric's unit rate and multiply the denominator by two, it will be 14 minutes. Rob's denominator is also 14 minutes. This makes it easier on ourselves. If we multiply the bottom number we also have to multiply the top. So, on Eric's unit rate, we will take the 3 pages and mltiply it by 2 to get 6. 6 is less than 8, so Rob takes the win.
what is the percent change of 44000 to 40000
Answer:
10 percent
Step-by-step explanation:
40000 is the old value and 44000 is the new value. In this case we have a positive change (increase) of 10 percent because the new value is greater than the old value.
find the coordinates of the point which divides the line segment joining the points (4, -3) and (8.5) in the ratio 3:1 internally
Answer:
The coordinates of the division point are (7, 3)
Step-by-step explanation:
The coordinates of the point (x, y) which divides a segment with endpoints (x1, y1) and (x2, y2) at a ratio m1: m2 internally is ([tex]\frac{m1x2+m2x1}{m1+m2}[/tex] , [tex]\frac{m1y2+m2y1}{m1+m2}[/tex] ).
∵ The line segment joining the points (4, -3) and (8, 5)
∴ x1 = 4 and x2 = 8
∴ y1 = -3 and y2 = 5
∵ The point divides the segment at ratio 3: 1
∴ m1 = 3 and m2 = 1
→ By using the rule above
∵ x = [tex]\frac{(3)(8)+(1)(4)}{3+1}[/tex] = [tex]\frac{24+4}{4}[/tex] = [tex]\frac{28}{4}[/tex]
∴ x = 7
∵ y = [tex]\frac{(3)(5)+(1)(-3)}{3+1}[/tex] = [tex]\frac{15-3}{4}[/tex] = [tex]\frac{12}{4}[/tex]
∴ y = 3
∴ The coordinates of the division point are (7, 3)
On the first day, 8 adult tickets were sold and 13 student tickets were sold for a total of $75. On day two, 10 adult tickets were sold and 9 student tickets were sold for a total of $72. What is the cost of an adult ticket? What is the cost of a student ticket?
Answer:
Adult ticket = $4,5
Student ticket = $3
.
Step-by-step explanation:
Let say adult ticket is x and student ticket is y. so we get:
→ 8x + 13y = 75 (×5) 40x + 65y = 375
→ 10x + 9y = 72 (×4) 40x + 36y = 288
.
Eliminate both equations
40x + 65y = 375
40x + 36y = 288
29y = 87
[tex]y = \frac{87}{29}[/tex]
[tex]y = 3[/tex]
.
Substitute the value of y to one of equations
[tex]10x + 9(3) = 72[/tex]
[tex]10x + 27 = 72[/tex]
[tex]10x = 72 - 27[/tex]
[tex]10x = 45[/tex]
[tex]x = \frac{45}{10}[/tex]
[tex]x = 4,5[/tex]
.
Happy to help :)
Answer:
iwiwjjwjwjwjbba abaha ajajaj ajaj
Step-by-step explanation:
wjis sisi sjaijs aibaia aihwoh ha ajj w
Please answer correctly !!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!
Answer:
3
Step-by-step explanation:
9 / 54 = x / 18
x = 3
If a polynomial 2x( raised to power 3) -9x +15x +p, when divided by (x-2), leaves -p as remainder, then p is equal
Answer:
p is -5
Step-by-step explanation:
If a polynomial 2x³-9x² +15x +p is divided by (x-2), then the remainder is gotten by equating the divisor x - 2 to zero
If x - 2 = 0
Add 2 to both sides
x - 2 + 2 = 0 + 2
x = 2
Substitute x = 2 into the expression to get the remainder:
If p(x) = 2x³-9x² +15x +p
p(2)= 2(2)³-9(2)² +15(2) +p
p(2) = 2(8) - 9(4) + 30 + p
p(2) = 16-36+30+p
p(2) = -20 + 30 + p
p(2) = 10+p
Since the remainder given in question is - p, to get p, we will equate p(2) to -p as shown
p(2) = -p
10+p = -p
10 = -p-p
10 = -2p
p = 10/-2
p = -5
Hence the value of p is -5
Simplify : - sqrt(- 75) A. - 5i * sqrt(2) B. - 5i * sqrt(3) C. - 5i D. 5i
Answer:
B
Step-by-step explanation:
Here, we want to calculate the square root of -√- (75)
That will be
-√(25)(-3)
= -5 √(-3)
√(-3) is same as 3i
So we have the root as;
-5i√3
Three items were bought at a car boot sale.
Item A
Mass = 42 grams
Volume = 2 cm
Item B
Mass = 87.5 grams
Volume 5 cm3
Item C
Mass = 147 grams
Volume = 7 cm3
=
The density of platinum is approximately 21 grams per cmº.
Which of the items cannot be platinum?
You must show your working.
Answer: Multiply the density with the volume. You get 2418.2 grams or 2.4182 kilograms
Step-by-step explanation:
Answer:
Item B
Step-by-step explanation:
A:
density = mas/volume = 42 g / 2 cm^3 = 21 g/cm^3
This may be platinum.
B.
density = mass/volume = 87.5 g / 5 cm^3 = 17.5 g/cm^3
This cannot be pure platinum.
C.
density = mass/volume = 147 g / 7 cm^3 = 21 g/cm^3
This may be platinum.
Answer: Item B
Does anybody know the average individual score for a Mathcounts competition?
Answer:
4.0 hope this helps!!6
A store is having a sale with 10% off everything.
b) Does your equation for part a represent a proportional relationship?
Answer:
what equation can you give more through instructions please
help me with these questions
Answer:
for the graph all you do is graph the points
the slope is 2
y-intercept is 8
equation- y=2x+8
and 18 dollars for 5 pizzas
Step-by-step explanation:
Find zeros of the following equation
4x-3=x+2
Answer:
4x-3=x+2
4x-x=3+2
3x=5
x=5/3
i need help with pre-algebra, how do you convert exponential expressions? please help!
Answer:
Go on You Tube and look up
Converting Exponential Equations to Logarithmic Equations - College Algebra Tips
At a basketball camp there are 4 girls for every 5 boys. What is the ratio for BOYS to TOTAL number of campers?
There are nine campers in total. There are five boys in the camp. Here are the details:
Ratio: 5:9
Fraction: 5/9
Decimal: 0.5555...........
Percentage: 56%
Hope this helped! Have a wonderful Day! :D
simplyfy: 4x + 8 + x -2 -3x
Answer:
2x+6
Step-by-step explanation:
To simplify an expression such as this you must add like terms. Like terms are terms that have the same variable and power. In this expression 4x, x, -3x are like terms and -2 and 8 are also like terms. To add like terms simply add the coefficients and remember adding a negative is the same as subtracting. So, add the previously listed terms 4x + x + (-3x) = 2x, then -2+8= 6. This means the simplified expression is 2x+6.
I’m very confused on this! Where do I even start on here?? This is extra credit for my geometry class !
7 less than 1/4 of x is y.
!!!ANSWER ASAP!!!
Answer: y= 1/4x -7
Step-by-step explanation:
More than 200 universities in the United States and many more worldwide have sport management programs. Approximately how many are accredited by the Commission on Sport Management Accreditation (COSMA)
Answer:
54 programs
Step-by-step explanation:
As of today's date 12/25/2020, there are a total of 54 programs that have been accredited by the Commission on Sport Management Accreditation (COSMA). Each university program that has been accredited can be found on COSMA's official website along with the date in which each program was officially accredited and the basic information regarding the program and its university. More and more programs are being added as time goes by.
5/6x for x =-8
Evaluate
Answer:
-20/3
Step-by-step explanation
5/6 x (-8)
-5/6 x 8 multiplying a( + )and a (- )= a(-)
-5/3 x 4 reduce with the greatest common factor 2
-20/3
Select all of the following that are quadratic equations.
1. x2 + 3 x -5 = 0
2. x2 - x = 3 x + 7
3. 5 x - 7 = 0
4. 7 x2 + 14 x = 0
5. x3 - 3 x2 + 1 = 0
6. x - 5 = 9 x + 7
Answer:
1. x² + 3x - 5 = 0
2. x² - x = 3 x + 7
4. 7x² + 14x = 0
Step-by-step explanation:
A Quadratic equation takes the form;
ax² + bx + c = 0
a, b, c are constants and a cannot be 0.
Options 1 fits this;
x² + 3x - 5 = 0
Option 2 fits this as well;
x² - x = 3 x + 7
x² -x - 3x - 7 = 0
x² - 4x - 7 = 0
Option 4 fits this as well if c = 0.
7x² + 14x + 0 = 0
pls help meh with this <3
Answer:
For the first one, 29,000 s, 29,500 s, and 29,999 s.
For the second one, no because the bookcase is taller than the doorway.
Oof hope I'm correct and was able to help <3
Express 25 as power with base 5
Answer: express a number in base 5 notation you need to write it in powers of 5. ... 52 = 25 53 = 125 54 = 625. 625 is larger than 613 so I only need a 53 digit, a 52
Step-by-step explanation:
Answer:
POWERS OF 5:
.52 = 25
53 = 125
54 = 625
So 625 is larger than 613
so you will only need 53
but then you also will have 52 so you have 52 as your answer i hope this helps :)
Translate the inequality and solve. Three times a number is greater than six. 1 point
Answer:
3x > 6
x > 2
Step-by-step explanation:
Encuentra la ecuacion de la parabola con vertice en el origen y foco en las cordenadas 0,1en su forma ordinaria y general
Answer:
[tex]x^{2}=4y[/tex]
[tex]y=\frac{1}{4}x^{2}[/tex]
Step-by-step explanation:
Forma ordinaria
La ecuación de la parabola de manera ordinaria está dada por:
[tex](x-h)^{2}=4p(y-k)[/tex] (1)
Donde:
(h,k) es la coordenda del vértice, en nuestro caso (0,0) ya que está en el origen.(h,k+p) es la coordenda del foco, en nuestro caso (0,1).Por lo tanto h = 0, k = 0 y p = 1.
Remplazando estos valores en la ecuación de la parábola, tenemos:
[tex](x-0)^{2}=4*1(y-0)[/tex]
[tex]x^{2}=4y[/tex] (2)
Forma general
La forma general de una parábola esta dada por la siquiente ecuación
[tex]y=ax^{2}+bx+c[/tex]
Reordenando la ecuación (2) tenemos:
[tex]y=\frac{1}{4}x^{2}[/tex]
Espero esto te haya ayudado!