Write an equivalent expression without parentheses and then simplify the result
8n - (7 + 6n)
A. 8n - 7 - 6n
B. 8n - 7 + 6n
C. 2n +7
D. -2n + 7
E. 2n - 7
Answers
Related Questions
A giraffe is 5 meters 20 centimeters tall. An elephant is 1 meter 77 centimeters shorter than the giraffe. A rhinoceros is 1 meter 58 centimeters shorter than the elephant. How tall is the rhinoceros?
Answers
Answer:1 meter and 58 centimeters
PLSS HELP ME ASAP I WILL EVEN GIVE U BRAINLYEST BUT PLAA HELP ME!!
Is the probability of red a simple event, complement of a
simple event, or neither?
A. complement of a simple event
B. nelther
C. simple event
Answers
Answer:
Complement of an Event: All outcomes that are NOT the event. So the Complement of an event is all the other outcomes (not the ones we want). And together the Event and its Complement make all possible outcomes.
A gardener is planting two types of trees: Type A is 4 feet tall and grows at a rate of 24 inches per year. Type B is 5 feet tall and grows at a rate of 21 inches per year. Algebraically determine exactly how many years it will take for these trees to be the same height.
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find the product of (5x+4)(5x-4)
Answers
Answer:
25x² - 16
Step-by-step explanation:
Given
(5x + 4)(5x - 4)
Each term in the second factor is multiplied by each term in the first factor, that is
5x(5x - 4) + 4(5x - 4) ← distribute parenthesis
= 25x² - 20x + 20x - 16 ← collect like terms
= 25x² - 16
A pendulum's first swing has an arc of 36 inches. As the pendulum swings back and forth, the arc length for each successive swing is 95% of the previous swing. If this pattern continues, at which swing of the pendulum will the length of the arc be less than 27 inches? A. 5th B. 6th C. 7th D. 9th
Answers
Answer:
7th
Step-by-step explanation:
Given :
Arc length on first swing = 36 inches
After successive swing, arc length decreases by 95%
Length on 2nd swing = 0.95 * 36 = 34.2
Length on 3rd swing = 0.95 * 34.2 = 32. 49
Length on 4th swing = 0.95 * 32.49 = 30.8085
Length on 5th swing = 0.95 * 30.8085 = 29.268075
Length on 6th swing = 0.95 * 29.268075 = 27.80467125
Length on 7th swing = 0.95 * 27.80467125 = 26.4144376875
26.4144376875 < 27
Hence, length falls below 27 on 7th swing
A grocery store offers a service where customers can place an order and have their groceries delivered to their home for a additional fee. The equation y=1.5x can be used to find y, the total cost in dollars for x, the grocery cost In dollars. Ian has groceries delivered for a total cost of &125.90. He says his grocery cost must be $118.90. Is Ian correct? Explain your reasoning
Answers
Answer:
The answer is below
Step-by-step explanation:
A linear function graph can be represented by:
y = mx + b; where m is the slope and b is the y intercept, x is the independent variable and y is the dependent variable.
Given that y represents the total cost, x represent the grocery cost and the equation is given as:
y = 1.5x
The groceries where delivered for a total cost of $125.90, The grocery cot can be gotten by substituting y = 125.9 and calculating x. Hence:
125.9 = 1.5x
x = 125.9/1,5
x = $83.93
Therefore saying that the grocery cost must be $118.90 is incorrect.
HELPPP PLEASEE!!!DONT ANSWER IF YOU DONT KNOW!!
Answers
Answer:
-4
Step-by-step explanation:
Can someone tell me how to do this? This is so confusing to me.
Answers
Answer:
A. Rate of Change: 25/1
B. Initial Value: 100
C. Y=25x+100
D. After 6 months the cost is 250$
E. 475=25x+100
475=25x+100
375=25x
x=15
So E. is 15 months
Step-by-step explanation:
The functions f(x) and g(x) are shown on the graph. f(x) = |x|
what is g(x)
Answers
Answer:
D
Step-by-step explanation:
Answer:
i just took it. its actually g(x)=|x+5|
Step-by-step explanation:
f(x)= -x^2, Find f(3)
Answers
Let x = 3
f(3) = -(3)^2
f(3) = -(9)
f(3) = -9
Write ratios for sin C, cos C, and tan C
Answers
Answer:
sin c - 25/7
cos c - 7/24
tan c - 25/24
Step-by-step explanation:
If you were to roll a standard six sided die, what is the probability of rolling a number less than what three other people rolled?
Answers
I assume you mean on a 6-sided die? If so, there are two numbers less than 3: 1 and 2. There are 6 total possible results, so the probability of rolling a number less than 3 is 26 or 13 or 0.3333 .
Can yu guys help me out
Answers
Answer:
they are already answered
Step-by-step explanation:
Right?
alex works for his father assembling clock motors he is paid a piecework rate of $8.50 per motor. this week he assembled 21 motors
Answers
Answer: $178.50
Step-by-step explanation:
If Alex is paid a piecework rate of $8.50 per motor, then;
Price per motor assembly = $8.50
By assembling 21 motors Alex gets,
1 motor = $8.50
21 motors = (21 * $8.50) / 1
= $178.50 / 1
= $178.50
By assembling 21 motors,
Alex gets $178.50
Consider the function represented by the graph. What is the domain of this function?
A. {x|x=>0}
B. {x|x<=8}
C. {x|0<=x<=8}
D. {x|x<=0x=>8}
Answers
Answer:
I think it is B but i'm not 100% sure.
Step-by-step explanation:
john has 19 cookies aailyah has 89 cooking how many do they both have
Answers
Answer:
108 cookies total
Step-by-step explanation:
19+89=108
Answer:
108
Step-by-step explanation:
Good Luck!
Allen wants to have a mean of 90 on his math quizzes. So far, he has scored 86, 94, 88, 95, and 89. What is the least score that Allen needs on his next quiz to have a mean of 90?
Answers
Answer:
88
Step-by-step explanation:
[tex] \frac{86 + 94 + 88 + 95 + 89 + x}{6} = 90[/tex]
The mean would be the sum of all the math quiz grades divided by the number of quizzes taken.
Solve for x:
[tex]86 + 94 + 88 + 95 + 89 + x = 540[/tex]
[tex]452 + x = 540[/tex]
[tex]x = 88[/tex]
Thus, Allen needs at least an 88 to obtain a mean of at least 90.
The question and information is on the photo pls if you can give me the work to.
Answers
Answer:
SI = 2052.61 ft
Step-by-step explanation:
cos 13 = 2000/SI
0.9744 = 2000/SI
multiply both sides by SI:
(SI)(0.9744) = 2000
divide both sides by 0.9744:
SI = 2052.61 ft
1. "-4 less than a number is 17."
Answers
Answer:
yes
Step-by-step explanation:
plsss help i’ll give brainliest if you give a correct answer
Answers
Answer:
(-2) and 3
Step-by-step explanation:
Answer:
f=-2, f=3, f=-4, they are all smaller than 4!!!
Please help me simplify this expression!!
Answers
Answer:
[tex]w^{14}[/tex]
Step-by-step explanation:
[tex]\frac{1}{w^{11} } *w^{25}\\\\\\\frac{w^{25}}{w^{11}} \\\\w^{14}[/tex]
Which expression is equivalent to 3x+2
Answers
Answer:
(3 x X) + 2
Can be a possible way if you factor it out I think.
plz help i need some one to check if this is right :(
Answers
Answer: No, it's not. x should be 121
Step-by-step explanation:
Answer:
No it is 121
Step-by-step explanation:
22+37= 59
all angles add up to 180 degrees
180-59=121 degrees
Given the system of equations, what is the solution? x + 2y = 11 x - 2y = -1 o(-5, -3)} O [(1,1)] O [(5.3)]
Answers
Answer:
2.2 results in a true equation, 2.2 is a solution to the equation.
Step-by-step explanation:
Step 1. Substitute the number for the variable in the equation.
Step 2. Simplify the expressions on both sides of the equation.
Step 3. Determine whether the resulting equation is true.
If so, the number is a solution.
If not, the number is not a solution.
HELP!!,I WILL GIVE BRAINLIEST!!!
Answers
Answer:
your answer will be Option A
Step-by-step explanation:
hope it helps
Help help help help help help
Answers
Answer:
volume = 160 cm³
Step-by-step explanation:
volume = 4 x 4 x 10 = 160 cm³
4x4x10 = 160
Cm^3 is the unit for volume
) Hiroki's goal is to collect $40 for a school fundraiser. He has already collected $26.50. Hiroki wants
to know how much more money he needs to collect.
that use the word correctly
ices, press the "Check Me" butto
6 POTE
.) Let m be the amount of money Hiroki still needs to collect.
Describe the situation with an equation.
this town made the first eleva
er and wrote a note on it
vater from the sink is leaking
color of copper coins
m
26.50
40
corper pipes for this project
De
Answers
Answer:
$13.50
Step-by-step explanation:
Subtract 40 from 26.50 to get the answer
ANDWER CHOICES:
14cm
20cm
8cm
6cm
I NED HELP ASAP!!!!
Answers
is y+7=2x a direct variation
Answers
Answer:
No, y+7=2x does not represent direct variation
Step-by-step explanation:
No, y+7=2x does not represent direct variation, because of the constant (initial value) 7.
y = 2x represents direct variation; y = 2x - 7 does not.
Data that's displayed randomly on a scatter plot graph illustrates (please help asap!)
positive correlation.
negative correlation.
none of these.
no correlation.