Decide whether the two expressions are equivalent and explain your reasoning.
a.
3(x + 4) and 3x +12
Equivalent: Yes
No
Justification:
b.
10-2x and -2x +10
Equivalent: Yes
No Justification:
C.
-6(x + 5) and - 6x + 5
Equivalent: Yes
No
Justification:
d.
4x and 2x +2
Equivalent: Yes
No
Justification:
Answer:
b
Step-by-step explanation:
Answer:
a- yes
b- yes
c- yes
d- yes
Step-by-step explanation: They're. all yes
please help, i will give brainliest!
....i cant even read it
⊂∫⊃
A theater is tracking the number of adults and children in the audience at
various shows. The table shows how the number of adults and children
are related
Select the equation that matches the relationship.
X+y = 1000
X-y1000
y-x= 1000
Y= 1000xc
Adults
Children
500
500
450
550
400
600
350
650 I Need help i dont understand!!!!!!!!
Answer:
The correct option is;
x + y = 1000
Step-by-step explanation:
The data from the table can be presented as follows
Adults (x) [tex]{}[/tex] Children (y)
500 [tex]{}[/tex] 500
450 [tex]{}[/tex] 550
400 [tex]{}[/tex] 600
350 [tex]{}[/tex] 650
Therefore, we have the rate of change of the children, y to the adults, x, which is also the slope of the graph of the data given as follows;
The slope, m = dy/dx = (650 - 500)/(350 - 500) = 150/(-150) = -1
m = -1
The function of the graph in point and slope form, using the first point, becomes;
y - 500 = -1 × (x - 500) = -x + 500
∴ y - 500 = -x + 500
y + x = 500 + 500 = 1,000
Which gives
y + x = 1,000
y + x = x + y = 1,000
Andre ran 2 kilometers in 15 minutes, and Jada ran 3 kilometers in 20 minutes. Both ran at
a constant speed.
In kilometers, how far did Jada run in 60 minutes?
Answer
9 Kilometers
Step-by-step explanation:
Jada ran 3 kilometers in 20 minutes
3 in 20 converting that to 60 for the question you would need to triple that
Giving you 9 in 60 minutes
Triangle angles review (khan academy)
Find the value of x in the triangle shown below
X = ?
Answer:
The correct answer is 87°
hope this helps
plz mark. as brainliest
The points (6,r) and (9, 9) lie on a line with slope 5. Find the missing coordinate r.
Answer:
r = -6
Step-by-step explanation:
Use the slope formula and solve for r.
slope = y2 -y1
x2 -x1
Since you know all the numbers except for r, plug everything in and you get:
5 = 9 - r
9 - 6
So then do the arithmetic, you find that 9 - r = 15. So r must = -6.
Which expression is equivalent to -0.2 - 4.9
Answer: 0.2- -4.9
Step-by-step explanation:
When u see a negative number change it to a positive to make it equivalent
Solve for x with given angle measures.
Answer:
Step-by-step exx=3planation:
The exterior angle is equal to the sum of the opposite interior angles
3x^2 -6x+8x = 2x^2 +3x+6
Combine like terms
3x^2+2x=2x^2+3x+6
Subtract 2x^2 from each side
3x^2+2x -2x^2=2x^2-2x^2+3x+6
x^2+2x=3x+6
Subtract 3x from each side
x^2+2x-3x=3x-3x+6
x^2-x=6
Subtract 6 from each side
x^2 -x-6 =0
Factor
( x-3)(x+2) =0
Using the zero product property
x-3 =0 x+2 =0
x=3 x=-2
But x cannot be negative since an angle would have a negative value so
x=3
Check
3x^2 -6x+8x = 2x^2 +3x+6
3 ( 3)^2 -6(3) +8(3) = 2 (3)^2 +3(3)+6
3*9 -18 +24 = 2 *9 +9+6
27 -18+24 = 18+9+6
33=33
I need help anyone please???
Answer:
D
Step-by-step explanation:
If x = 1, what is the value of y given 2x + 2y = 18?
Answer:
y=8
Step-by-step explanation:
2(1)+2y=18
2+2y=18
minus 2 from both sides
2y=16
divide by 2 from both sides
y=8
Answer:
y=8
Step-by-step explanation:
1. If x is equal to 1, 2x is just 2.
2. We can subtract the 2 we already have. 18-2=16
3. 2y=16, divide by 2 on both sides.
y=8
what does x equal 8x−2=12x+18
Answer:
x = -5
Step-by-step explanation:
Start by combining terms.
8x-2 = 12x +18
8x -12x = 18+2
-4x = 20
*Divide both sides by -4
x = -5
2+2 :( i dont know this ;cc
Answer:
i think its either 22 or 4?
Step-by-step explanation:
Answer:
I believe it is 4
Step-by-step explanation:
hey siri play wap on living room speakers.
If the discriminant of a quadratic equation is 8, which statement describes the roots?
O There are two complex roots.
O There are two real roots.
O There is one real root.
O There is one complex root.
Answer:
There are two real roots
Step-by-step explanation:
From the value of the discriminant b² - 4ac
• If b² - 4ac > 0 then 2 real and distinct roots
• If b² - 4ac = 0 then 2 real and equal roots
• If b² - 4ac < 0 then 2 complex roots
Here b² - 4ac = 8 > 0 , then there are two real roots
g(t) = 1 + 2
f(t) = 1 + 1
Find g(t) + f(t)
Answer:
g(t)= 3
f(t)= 2
Step-by-step explanation:
1+2=3
1+1=2
How do you find the y- intercept of a line? please explain by using the example above.
Answer:
12
Step-by-step explanation:
a line is defined by the equation y=2/3x-6. The line passs through a point whose y-coordinate is 0. What is the x-coordinate of this point?
Answer:
The answer would be 0 because it passes through
Step-by-step explanation:
I HONESTLY DONT UNDERSTAND THIS ONE> I HAVE NO IDEA WHAT TO DO> HELP ME PLEASE
Answer:
C
Step-by-step explanation:
320 yards is converted into 920 feet which is the faster route than all the other routes converted to feet
20 p − 4 ( 3 p − 6 ) = 8 ( 3 p − 6 ) − 16 p
Give steps to please !!!!
Answer:
5.5
Step-by-step explanation:
20p-4(3p-6)=8(3p-6)-16
20p-12p+24=24p-48-16
8p+24=24p-64
+64 on both sides
8p+88=24p
-8p on both sides
88=16p
/16 on both sides
answer = 5.5
Jane contribuyó con $ 10,000 y Julie contribuyó con $ 6,000. Después de un año, la empresa obtuvo una ganancia de $ 4,000. ¿Qué proporción de las ganancias debería tomar Julie si se comparten en la misma proporción que sus contribuciones originales?
Answer:
Ganancias Julie= $1,500
Step-by-step explanation:
Dada la sigueinte información:
Jane contribuyó con $ 10,000 y Julie contribuyó con $ 6,000. Después de un año, la empresa obtuvo una ganancia de $ 4,000.
Primero, debemos calcular la proporción de aportes de cada una:
Jane= 10,000/16,000= 0.625
Julie= 6,000/16,000= 0.375
Ahora, lo que le corresponde a Julie de las ganancias:
Ganancias= 4,000*0.0375
Ganancias Julie= $1,500
Solve the following algebraic equation. Show each step of the process. (10 points)
1/4(y+24)= 32
Answer:
y=104
Step-by-step explanation:
1/4(y+24)= 32
y+24=128
y=128-24
y=104
Ms. Granger gave the cashier $20 to pay for 3 bags of Halloween candy. The cashier gave her $5.24 in change. Each bag cost the same amount. What is the cost in dollars and cents for each bag of candy?
Answer:
$4.92 per bag
Step-by-step explanation:
20 - 5.24= 14.76
14.76 divided by 3 = 4.92
Identify each pair of congruent vertical angles.
Please help :) I’ll give out brainliest to the first person who answers!
Answer:
1 and 6
2 and 5
4 and 7
3 and 8
10 and 12
9 and 11
Step-by-step explanation:
(b) Tom removed 8 fish from his pond each day for 48 days. What was the total change in
the number of fish in the pond?
Answer:
16 fish were removed
48 hours is 2 days time so if he took 8 fish for 2 days he took 16 fish
Have a good day!
:)
Answer:
A decrease by 384 fish
Step-by-step explanation:
8 × 48 = 384
How do you make the yellow "First answer" on your questions??????????? it looks like the thing below.
This tag only appears on a user's question when it's their first question on the site.
is .3781 rational or irrational?
help me pls ;-; , i’m struggling here and suffering in silence
Answer:
suffer no longer ! im here for u!!!~~
the answer is JKN = 57
Step-by-step explanation:
JKN is JKL + LKN
we know that LKM = 42, and LKN is half of that because KN bisects LKM (splits into 2 equal parts)
so, LKN is half of 42
LKN = 21
to find JKL, subtract 42 from 78
JKL = 36
36 + 21 = 57
To purchase on an engagement ring for his girlfriend, Elliott borrowed $3,800 from the bank for three years at a 4.25% simple interest rate. How much interest will he have paid at the end of the loan?
Answer:
$161.50
Step-by-step explanation:
4.25% of $3800 is $161.50
Last week, Kimi spent $181.91 at the grocery store on Monday. Then she spent another $186.40 on Friday. How much did Kimi spend at the grocery store last week?
Answer:
$368.31
Step-by-step explanation:
In order to determine the amount that Kimi spent at the grocery store last week, you need to add the amount she spent on Monday plus the amount she spent on Friday:
$181.91+$186.40=$368.31
According to this, the answer is that Kimi spent $368.31 at the grocery store last week.
Point J located at (2, 7) is rotated 90 degrees counterclockwise about (-1, -3). What is the y-coordinate of J’?
A. 9
B. 0
C. -11
D. -9
Given:
Coordinates of point J are J(2,7).
It is rotated 90 degrees counterclockwise about (-1, -3).
To find:
The y-coordinate of J’.
Solution:
If a figure rotated 90 degrees counterclockwise about a point (a,b), then
[tex](x,y)\to (-(y-b)+a,(x-a)+b)[/tex]
Point J is rotated 90 degrees counterclockwise about (-1, -3). So, a=-1 and b=-3.
[tex](x,y)\to (-(y-(-3))+(-1),(x-(-1))+(-3))[/tex]
[tex](x,y)\to (-(y+3)-1,(x+1)-3)[/tex]
[tex](x,y)\to (-y-3-1,x+1-3)[/tex]
[tex](x,y)\to (-y-4,x-2)[/tex]
Coordinates of point J are J(2,7).
[tex]J(2,7)\to J'(-7-4,2-2)[/tex]
[tex]J(2,7)\to J'(-11,0)[/tex]
Therefore, the y-coordinate of J' is 0. Hence, the correct option is B.
can someone do my homework i will mark brainliest i will fail if it is not done by tonight
Answer:
What is the question?
Step-by-step explanation:
If you tell me what the Homework is then sure!
