Answer:
[tex]-12x^2[/tex]
Step-by-step explanation:
Think of the box method as completing a chart or a multiplication table.
We can see that box B is in the second column of the first row. The second column is labeled by -4x. The first row is labeled by 3x. So, in order to fill out box B, you have to multiply -4x and 3x together.
To do so, multiply the terms' coefficients (the numbers in front of the variable). -4 times 3 makes -12. Then, multiply the variables - just keep the variable and add their exponents. x and x both have exponents of one, which makes [tex]x^1^+^1[/tex], resulting in [tex]x^2[/tex]. Put them together and the answer would be [tex]-12x^2[/tex].
Robert spent $45 buying songs and movies at an online store that charges 1.75 for each song and $2.50 for each movie he purchased a total of 20 songs and movies combined write a system of equations that represents this situation
Answer:
x= number of songs bought
y= number of movies bought
1.75*x + 2.5*y = 45
x + y = 20
Step-by-step explanation:
Giving the following information:
Robert spent $45 buying songs and movies at an online store that charges 1.75 for each song and $2.50 for each movie he purchased a total of 20 songs and movies combined.
We need to establish a system of equations that represents this situation.
x= number of songs bought
y= number of movies bought
1.75*x + 2.5*y = 45
x + y = 20
Now, we can determine the x and y:
x= 20 - y
Substitute x:
1.75*(20 - y) + 2.5y = 45
35 - 1.75y + 2.5y = 45
0.75y = 10
y= 13
x= 20 - 13
x= 7
Prove:
1.75*7 + 2.5*13 = 45
7 + 13 = 20
A bee colony is experiencing an colony collapse disorder. In 2 days (t = 2), there are 1,500 bees left in the colony, and in 6 days (t = 6), there are 400 bees left. Find the exponential model y = aeb that fits the bees population decline.
Answer:
oh yayay accountiationasionisiation is the longest word that a loooot of peple kno
Step-by-step explanation:
What is the y intercept of the following equation
3x-2y=4
Answer: y = -2 + 3/2x
Step-by-step explanation:
1. 3x - 2y = 4 (move the variable to the right of the equal)
1.1. -2y = 4 - 3x
2. y = -2 +3/2x (divide both sides by -2)
Which set of ordered pairs could NOT represent a function?
a.) (1, 1), (2, 2), (5, 5), (7, 7), (13, 13)
b.) (1, 5), (2, 6), (3, 6), (4, 5), (5, 4)
c.) (2, 3), (3, 4), (2, 5), (5, 6), (2, 7)
d.) (3, 2), (2, 1), (4, 3), (5, 4), (6, 0)
Answer:
B (1, 5), (2, 6), (3, 6), (4, 5), (5, 4)
Step-by-step explanation:
During 24 hours a radio station spends 1/5 of the time playing rock music,2/3 playing hip hop, and the rest playing dance music.How much time is spent playing dance music?
Answer:
[tex]3.2\:\text{hours}[/tex] is spent playing dance music.
Step-by-step explanation:
Given: During [tex]24[/tex] hours a radio station spends [tex]\frac{1}{5}[/tex] of the time playing rock music, [tex]\frac{2}{3}[/tex] playing hip hop, and the rest playing dance music.
To find: How much time is spent playing dance music?
Solution:
We have,
Radio station spends [tex]\frac{1}{5}[/tex] of the time playing rock music.
Radio station spends [tex]\frac{2}{3}[/tex] of the time playing hip hop.
Radio station spends rest of the time playing dance music.
So,
Time spend on playing rock music [tex]=\frac{1}{5}\times24 = 4.8\:\text {hours}[/tex]
Time spend on playing hip hop [tex]=\frac{2}{3}\times24 = 16\:\text {hours}[/tex]
Now, total time radio station spends on all the three music is [tex]24[/tex] hours.
Therefore, rest of the time[tex]=24-(16+4.8)=3.2\:\text{hours}[/tex]
It is given that in the rest of the time, the radio station plays dance music.
Hence, [tex]3.2\:\text{hours}[/tex] is spent playing dance music.
Simplify the expression to a polynomial in standard form:
(3x – 10)(x2+ 2x - 1 )
Answer:
3 x ^3 − 4 x ^2 − 23 x + 10
Step-by-step explanation:
hope this helps!
need help asap please
Answer:
c=7.17
Step-by-step explanation:
23=6c-20
43=6c
7.17=c
Answer:
7.16
I think this is correct
How many terms are in the expression:
6x + 5 + 10p
and what are they?
Answer:
Step-by-step explanation:
in this expression we have
two variables: 6x and 10p
one constant 5
3 terms
If Johnny has 2 apples and give 1 to Sally how many does Johnny have left?
Need help on this asap please
Answer:
the second one
so B
Step-by-step explanation:
Answer:
3.15=315% is true
Step-by-step explanation:
The last one D is true
I hope this helps. Best of luck
Solve equation 3x^2-4x=7 by completing square
Step-by-step explanation:
3x2-4x-7=0(3x-7)(x+1)=03x-7=0 and x+1=0x=7/3 and x=-1Find the mean of the data in the dot plot below.
Answer:
83.6
Step-by-step explanation:
81+83+84+85+85=418
418/5= 83.6
What sports do you think I play‼️ If you get it right you get a prize
Answer:
Honestly doing this bc im bored but i dont know baseball or football
Do you play baseball? did I get it right?
WEEEEEEEEEEEEEEEEEEEEEEE
isabelrainbow ur the best person in the world tysm i will remember u when i fail i swear :) jk UR THE BEST THO TYSM
YOU WILL NOT FAIL, YOU SHALL PASS
Answer: w^6/9
Step-by-step explanation:
first, i evaluated the powers.
3^-2 x 1 x 1/w^-6
then, i calculated those products.
3^-2/w^-6
then, i just expressed it with a positive exponent.
w^6/3^2
finally, i evaluated that.
w^6/9
Your bank account balance is $46.74. You deposit $60.86, then withdraw $134.70. What is your new balance?
Solve to get points!
Answer:
The answer is 6/3>2/3
Evaluate the expression if p = 1, r= -7, and s = -2.
-3p-2r
6+4s
PLEASE HURRY!!! THANK YOU
Answer:
-5 1/2
The first one is right.
Step-by-step explanation:
k12 right ?
The solution of the given expression if p = 1, r= -7, and s = -2 will be; -5 and 1/2
What is an expression?Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.
WE have been given an expression as
-3p-2r / 6+4s
We have to substitute the value p = 1, r= -7, and s = -2 to find the solution.
Plug the values;
-3p-2r / 6+4s
-3 (1) -2 (-7) / 6+4(-2)
-3 + 14 / 6 - 8
11 / -2
Hence, the solution of the given expression if p = 1, r= -7, and s = -2 will be; -5 and 1/2
To know more about an expression follow;
brainly.com/question/19876186
#SPJ2
Which of the following expressions are equivalent to -5+7- (-3)?
Choose 2 answers:
Answer:
Step-by-step explanation:
-5+7- (-3)=
=-5+7+3=5
Is this congruent or not? And is it
SSS
SAS
SSA
AAS
HL
A boat is on the same horizontal level as the foot of a cliff and the angle of depression of the boat 30 degree. If the boat is 120m away from the foot of the Cliff, find the height of the Cliff to 3 significant figures
Answer:
69.282 m
Step-by-step explanation:
We can use the trigonometry of right triangles to solve this, since we are in the presence of a right triangle with acute angle 30 degrees, opposite side unknown (the vertical height of the cliff), and adjacent side equal to 120 m.
we use the tangent function to solve for the unknown, as shown below:
tan(30) = x/120
x = 120 * tan(30) = 69.282 m
If he starts at 1 and jumps 3 units to the left, then where is he on the number line? How far away from zero is he? (explain how you got your answer )
Answer:
he is at -3
Step-by-step explanation:
On a number chart, If he goes 3 left hes going 3 negative. So it would be -3
I hope this helps!
Answer:
-2
Step-by-step explanation:
You subtract 3 from one
First jump 0
Second jump -1
Third Jump -2
Coach Collin's soccer team selected 16 girls from 124 girls who tried out for the team. What decimal is equivalent to the fraction of the girls selected from the group of girls who tried out for the team?
Answer: 0.129
Step-by-step explanation:
Coach Collin's soccer team selected 16 girls from 124 girls who tried out for the team.
The fraction of girls selected to those who tried out in fraction form is:
= 16/124
The decimal form will be:
= 16 ÷ 124
= 0.129
Which expression is equivalent to 1/4 - 3/4x
Answer:
-3/4x + 1/4
Step-by-step explanation:
2. Mr. Thompson is on a diet. He currently weighs 260 pounds. He
loses 4 pounds per month.
a. Write a linear model that represents Mr. Thompson's weight after
m months.
b. After how many months will Mr. Thompson reach his goal
weight of 220 pounds?
a. w = -4m + 260
b. 10 months
What happens to a figure that is dilated by a factor of 13
Answer: it gets smaller, 13 times smaller
Step-by-step explanation:
Size of the figure/13
x+2y=0
4x+3y=1
What's the solution
Answer:
4x+3y=1
answer is y=-4/3x+1/3
Solve the triangle. Round your answers to the nearest tenth.
Answer:
A
Step-by-step explanation:
The tallest man in the world is about 101 inches tall. The shortest man in the world is about 29 inches tall. How much taller is the tallest man than the shortest man?
Answer:The tallest man is 72 inches taller than the shortest man.
Step-by-step explanation:
Subtraction:
101in-29in=72inches
Answer:
72 inches taller
Step-by-step explanation:
29in+x=101x=101-29x=72A hexagon can be divided into 4 non-overlapping triangles. Which is the sum of the interior angles of a hexagon?
A) 180°
B) 540°
C) 720°
D) 1440°
Answer:
B
Step-by-step explanation:
Which model shows 20%?
Answer:
The seccond one
Step-by-step explanation:
_
The first one shows 33.3% while the second one shows 20%
I hope this helps!
y=−34x 2 +1542x−10037
Answer:
10105
1542
Step-by-step explanation: