Which expression are equivalent to -3.5 - (-8.2)? Choose ALL that apply.
-3.5 + (-8.2)
3.5 + (-8.2)
-3.5 + 8.2
3.5 + 8.2
-3.5 + (+8.2)
Answer: Your answer is D becasue when you add -3.5 - (-8.2) you get 4.7, and its the same as -3.5 + (+8.2). I hope that kinda explaines it.
Step-by-step explanation:
The sum of deviation of a certain number of items measured from 2.5 is 50 and from 5.5 is - 250.Find the arthmetic mean
Answer = 3100
Answer:
3
Step-by-step explanation:
Given that :
A1 = 2.5 ; Σdx1 = 50
A2 = 5.5 ; Σdx2 = -250
Mean (m) = A + Σdx/N = 50
m = A + Σdx/N
m - A = Σdx/N
Nm - NA = Σdx
From the parameters given :
Nm - 2.5N = 50 - - - (1)
Nm - 5.5N = - 250 - - - (2)
Subtract (1) from (2)
3N = 300
N = 300/3
N = 100
Put N = 100 in either (1) or (2)
From (2):
100(m) - 5.5(100) = - 250
100m - 550 = - 250
100m = - 250 + 550
100m = 300
m = 300/100
m = 3
Hence, Arithmetic mean = 3
a video game store allows customers to rent games for 4.75 each. Customers can also buy a membership for $54 annually, and video games would only cost $2.50 each. Write and solve an equation to find the number of video games a customer would have to rent in a year in order for the two options to be equal...
equation:
solutionx(games):
please help me on this, thank u:)
Answer:
the exponent is -8, since when you're dividing these with teh same base, in this case 9, you just have to subtract the exponents, so it's 9^-8
Step-by-step explanation:
9514 1404 393
Answer:
1/9^8
Step-by-step explanation:
The applicable rules of exponents are ...
a^-b = 1/a^b
(a^b)(a^c) = a^(b+c)
__
[tex]\dfrac{9^{-5}}{9^3}=\dfrac{1}{9^5\cdot9^3}=\dfrac{1}{9^{5+3}}=\boxed{\dfrac{1}{9^8}}[/tex]
Solving special systems
{y=1/2x+4
{-1/2x+y=-5
Answer:
no solution
Step-by-step explanation:
Given the 2 equations
y = [tex]\frac{1}{2}[/tex] x + 4 → (1)
- [tex]\frac{1}{2}[/tex] x + y = - 5 → (2)
Substitute y = [tex]\frac{1}{2}[/tex] x + 4 into (2)
- [tex]\frac{1}{2}[/tex] x + [tex]\frac{1}{2}[/tex] x + 4 = - 5 , that is
4 = - 5 ← not possible
This indicates the system has no solution
evaluate the expression when c=2. 6c/2
Answer:
6Step-by-step explanation:
Given the expression g(c) = 6c/2, we are to find the value when c = 2
Substitute c = 2 into the expression
g(2) = 6(2)/2
g(2) = 12/2
g(2) = 6
Hence the result when c = 2 is 6
A typical tip in a restaurant is 15% of the total bill. If the bill is $90, what would the typical tip be?
Answer:
$13.50 typical tip
Step-by-step explanation:
So to find the percentage
multiply 0.15*90
You’ll get 13.5
Answer:
13.50
Step-by-step explanation:
Find 15% of 90 dollars
90 * 15%
Change to decimal form
90 * .15
13.50
Megan surveyed 40 students in her grade level and asked them what their favorite vegetable was. The results are in the circle graph below. Vegetables 10% 30% Carrots Tomatoes 25% Zucchini Squash Potatoes 20% 15% A. How many students said carrots were their favorite vegetable? I B. How many students said squash was their favorite vegetable?
Answer:
gjlll has 3
Step-by-step explanation:
amy has 555
Is [113 + ( −74) ]+ (−26) commutative or associative property?
Answer:
Commutative.
Associative property works on symbols instead of signs!
Answer:
associative property
Step-by-step explanation:
[a+b]+(c)=(a)+[b+c]
If -3x = 57, what is the value of x?
Answer:
-19
Step-by-step explanation:
-3x=57
Divide by -3
-3x/-3=57/-3
x=57/-3
x=-19
Hope this helps plz hit the crown :D
The product of two of three numbers is 7.8. if one number is 3/5, find the other number ( if you don't know please don't answer)
Answer: 13,I
Step-by-step explanation:
set the 3 number is 3/5, x,y
product of them
3 /5 xy = 7:6
xy = 7:6 x 5 /3
Xy = 13
So the two number is 13, 1
Step-by-step explanation: hope this helped, Meow!
Find the value of x.
Answer:
7
Step-by-step explanation:
this is an isosceles triangle so you know the two longer sides must be equal.
2x-7=7
2x=14
x=7
Answer:
The answer to this question is A) 7
Determine which type of graph is most appropriate for each set of data. Explain your choice. Question: average new car prices over a ten-year period.
Answer:
A line graph would be nice
Step-by-step explanation:
It would show how the prices increase over time
***im probs too late
Can somebody help me with this one
Answer:
D
Step-by-step explanation:
a^2 cancels out a^5 remaining a^3 denominator
b2 cancels b4 = b2 numerator
c3 cancels out c8 = c5 remaining denominator
36/4 = 9
therefore 9b^2 /a^3 c^5
look at picture pls help
Answer: k = 3
because p - 1 is a factor of the equation
=> at p = 1, p^4 + p² + p - k =0
with p =1, we have: 1 + 1 + 1 - k = 0
⇔ k = 3
Step-by-step explanation:
Answer:
Solution,
since the factor of f(p) = p-1
we know, f(p)= 0
p=1 (from remainder theorem)
now,
f(p) =p^4+p^2+p-k
0= 1^4+1^2+1-k
0= 1+1+1-k
0= 3-k
k=3
Write 5x - y = 1 4 in slope-intercept form.
Answer:
the answer is 34 because u multiple the y that is 4 5 times and you got 34
A tornado drops a piece of wood from a
height of 4,624 ft. If the equation for
height as a function of time is
h(t) = -16t2 + initial height where t is time
in seconds and h(t) is height in feet, how
many seconds will it take for the piece of
wood to hit the ground?
Answer:
Step-by-step explanation:
H(t) = -16[tex]t^{2}[/tex]+4.624 ( in feet)
0 = -16[tex]t^{2}[/tex] + 4,624
-4,624 = -16[tex]t^{2}[/tex]
-4,624 / -16 = [tex]t^{2}[/tex]
289 = [tex]t^{2}[/tex]
17 = t
so.. 17 seconds to hit the ground.. :)
The piece of wood 17 seconds takes to hit the ground.
What are Arithmetic operations?Arithmetic operations can also be specified by adding, subtracting, dividing, and multiplying built-in functions. The operator that performs the arithmetic operation is called the arithmetic operator.
A tornado drops a piece of wood from a height of 4,624 ft.
Given that the equation for the height as a function of time is
h(t) = -16t² + initial height
Substitute height = 4,624 ft. in the equation,
h(t) = -16t² +4.624
At ground level, the value of h(t) is zero,
0 = -16t² + 4,624
16t² = 4,624
t² = 4,624/16
t² =289
t = 17
So, 17 seconds to hit the ground
Hence, the piece of wood 17 seconds takes to hit the ground.
Learn more about Arithmetic operations here:
https://brainly.com/question/25834626
#SPJ2
An expression is shown. 2/3+1/5 What is the value of the expression?
Answer:
13/15
Step-by-step explanation:
all of the other answers would be wrong because of the numbers they choose and if you use s fraction calculation ik that will give you an answer of 13/15
#1: Given the geometric sequence 3, 9, 27, 81...
• write the explicit formula. Determine the 20th term of the sequence
Answer:
3486784401
Step-by-step explanation:
a=3, r = T2/T1 = 9/3=3
Tn = ar^(n-1)
T20 = ar^(20-1)
T20 = ar^19
T20 = 3×(3^19]
T20 = 3486784401
Answer:
The given geometric series is:
3,9,27,81
Step-by-step explanation:
common ratio: r = ([tex]a_n +1/ a_n[/tex])
r = 3
20th term of geometric series is that :
[tex]3^{1} =3\\3^2=9\\3^3=27\\3^4=81\\3^5=243\\.\\.\\.\\.\\.\\3^20 = 3486784401[/tex]
ion understand this one
Answer:
angle 7 = angle 3 because corresponding angles r equal
The regular price of a watch is $28.25. During a sale, the watch was marked 12% off. What was the price of the watch during the sale? (5 points)
a
$2.35
b
$3.39
c
$16.25
d
$24.86
Answer:
I believe the answer would be D, $24.86
Bryce took a quiz that consisted of true-or-false questions and multiple-choice questions. The true-or-false questions were worth 1 point each, and the multiple-choice questions were worth 2 points each. Bryce only knows that he answered 8 questions correctly and earned a total of 14 points. To determine the number of each type of question that he answered correctly, he wrote the system of linear equations x + y = 8 and x + 2 y = 14.
Which ordered pair is a solution to this system of linear equations, and what does the ordered pair represent?
(0, 8); Bryce answered 0 true-or-false questions correctly and 8 multiple-choice questions correctly.
1. (2, 6); Bryce answered 2 true-or-false questions correctly and 6 multiple-choice questions correctly.
2.(6, 2); Bryce answered 6 true-or-false questions correctly and 2 multiple-choice 3.questions correctly.
4. (8, 0); Bryce answered 8 true-or-false questions correctly and 0 multiple-choice questions correctly.
Answer:
Answer would be (2, 6); Bryce answered 2 true-or-false questions correctly and 6 multiple-choice questions correctly.
Answer:
B
Step-by-step explanation:
Which ratio forms a proportion with 7/14?
A. 4/9
B. 5/12
C. 2/5
D. 3/6
Answer:1
Step-by-step explanation:
. In April, it rained 1/4 of an inch on 15 different days. How many inches of rain fell
in April
Answer: 3 3/4 inches
Step-by-step explanation:
From the question, we are informed that In April, it rained 1/4 of an inch on 15 different days.
The number of inches of rain that fell in April would be the multiplication of 1/4 by the total number of days. This would be:
= 1/4 × 15
= 15/4
= 3 3/4 inches
solve for Y (2x+2y=4)
Answer:
[tex]y=-x+2[/tex]
Step-by-step explanation:
[tex]2x+2y=4[/tex]
[tex]2y=-2x+4[/tex] (Subtract 2x from both sides of the equation)
[tex]y=\frac{-2x+4}{2}[/tex] (Divide both sides of the equation by 2 to get rid of y's coefficient)
[tex]y=-x+2[/tex] (Simplify RHS)
Hope this helps!
In a storage warehouse, each container weighs 6*3 pounds. If there are 6*5 containers, how much do the containers weigh in total? Leave your answer in the exponent form.
\
Answer:
The answer is 6 to the power of 8
hi alondra its me Andrew Moreno. I also used brainly on the final.
In the equation, 1/4n+5=5 1/2 what is n equal to?
Answer:
n=2
Step-by-step explanation:
1/4n + 5= 5 1/2
1/4n= 1/2
(multiply both sides by 4 to cancel out the fraction on the left side of rhe equation)
n=2
dani rode her bike for 10 hours a day for 8 days . in this time she covered 576 miles. how many miles per day day did did dani average
Answer:
72 miles per day
Step-by-step explanation:
Step one data
we are told that Dani rode for 10 hours per day for 8 days
hence per day, the time taken is = 10 hours
Also,
Hence the average distance covered per day is
=total number of miles/total number of days
=576/8= 72 miles per day
What are the coordinates of the orthocenter of LMN ?
Answer:
a (1, 2.5)
Step-by-step explanation:
When talking about the orthocenter, you want to make sure that the point you are looking for is in the exact center. Since coordinate N of the x value is 1, we can safely assume that your top two choices are either a and b. B wouldn't work since it is not at the exact center which makes your answer A.
help me out due in a week
Answer:
SAS ( Side, Angle, Side)
Step-by-step explanation:
Both triangles - shown by the arcs labelled on them - have two known congruent sides, and an angle which they are both equal to.
(No units are needed as this shows already that both triangles are congruent to each other)
Hope this helps