Answer:
−7r^(2)+12r+10x−18
Step-by-step explanation:
Grab the original equation: 10x+7r−r^(2)−6r^(2)−18+5r
For subtraction bits, treat them as negatives: 10x+7r+−r^(2)+−6r^(2)+−18+5r
Combine like terms: (−r^2+−6r^2)+(7r+5r)+(10x)+(−18)
Simplify that, and you get your final answer: −7r^(2)+12r+10x+−18
POINTS!!!!!! HELP!!!!!!!
Use quadratic regression to find the
equation for the parabola going
through these 3 points.
(2, 19) (6, 99) (-1, 1)
y=[?]^2+[?]x+[?]
Answer:
The standard form of the parabola is
y = 2 x² + 4 x + 3
Step-by-step explanation:
Step(i):-
The standard form of the parabola
y = a x² + b x + c ...(i)
The equation for the parabola is passing through the point (2 , 19 )
19 = 4a + 2b +c ...(ii)
The equation for the parabola is passing through the point (6 , 99 )
99 = 36a + 6b +c ...(iii)
The equation for the parabola is passing through the point (-1,1) )
1 = a - b + c ...(iv)
step(ii):-
subtracting (ii) and (iii) , we get
8a + b = 20 ...(a)
Subtracting (iii) and (iv) , we get
5a + b = 14 ...(b)
solving (a) and (b) , we get
subtracting (a) and (b) , we get
8a + b-( 5a + b ) = 20 - 14
3 a = 6
a = 2
substitute a=2 in equation (a) , we get
8a + b = 20
8(2) + b = 20
b =20 -16
b = 4
Substitute a= 2 ,b = 4 in equation (ii) , we get
19 = 4a + 2b +c
19 = 8 + 8 + C
c = 19 -16 = 3
Final answer:-
The standard form of the parabola is
y = 2 x² + 4 x + 3
Help Me With This Plz?
Answer: #1 Answer is D
Step-by-step explanation: Welcome!
Can I get Brainliest?
Naty bought a dress for $24.95 and a skirt for $14.95.
The sales clerk said the total cost including 9.5% sales
tax was 49.40. Below are the steps the clerk completed.
Step 1: 24.95 + 14.95 = 39.90
Step 2: 39.90 +9.5 = 49.40
Are the clerk's steps correct? If she is incorrect, identify
her mistake and explain her error. Explain in writing how
to accurately calculate the sales tax, total cost, and state
the correct total. (Round final answer to the nearest
hundredth)
Answer:
Total items = $39.90
Sales tax amount = $3.7905
Total cost = $43.691
The clerk's error is using 9.5 as sales tax amount instead of finding 9.5% of the total items
Step-by-step explanation:
Dress = $24.95
Skirt = $14.95
steps the clerk completed.
Step 1: 24.95 + 14.95 = 39.90
Step 2: 39.90 +9.5 = 49.40
Correct steps:
Total items = dress + skirt
= $24.95 + $14.95
= $39.90
Sales tax = 9.5%
Sales tax amount = 9.5% of total
= 9.5/100 × $39.90
= 0.095 × 39.90
= $3.7905
Total cost = Total + sales tax amount
= $39.90 + $3.7905
= $43.6905
To the nearest hundredth
= $43.691
Sales tax is the amount of money imposed by government on the sales of some items
Total cost is the cost of all items including sales tax
Write the phase as an expression. Then evaluate x=5. The sun of number x and 4, all divided by 3
PLS HELP FINAL QUESTION! 50 POINTS AND BRAINLIEST!
[tex]ln (x-24) + ln(x+100) = 3ln5[/tex]
Answer:
lnx-24ln+lnx+100ln=3ln5
2lnx+76ln=2ln5
Step-by-step explanation:
please help asap no trolls!
Answer:
Angle S
Step-by-step explanation:
The angle is always proportional to the opposite side. Angle opposite to the longest side has the largest angle so since Side RT is the shortest side, the angle opposite to it (or whatever the correct term is) would be Angle S.
so if Sarah has 10 apples and shes gives 2 to Jack, and Noah gives Sarah 8 more. How many apples does Sarah have now?
Answer:
She would have 16
Step-by-step explanation:
10-2=8
8+8=16
To find 1% of a number, move the decimal
Answer:
2 places to the left
Step-by-step explanatiS
If the dolphin dives 100 feet below the surface of the ocean, what is its new elevation?
Answer:
Step-by-step explanation:
if you consider ) to be the elevation of the ocean, and the dolphin dives 100 feet, its new elevation will be -100 ft
I need to see where to put the points on the graph
Answer:
Step-by-step explanation:
ok so
42≤0.45x+0.60y
x=pounds of finnishing nails
y=pounds common nails
when x+y≥30
now lets solve for y
y=-x+30
lets plug this in to the formula
42≤0.45x+0.6(−x+30)
x≤−160
nowing this lets plug in for x
x+y≥30
-160+y≥30
y≥190
Answer:
Step-by-step explanation:
42≤0.45x+0.60y
x=pounds of finnishing nails
y=pounds common nails
when x+y≥30
now lets solve for y
y=-x+30
lets plug this in to the formula
42≤0.45x+0.6(−x+30)
x≤−160
nowing this lets plug in for x
x+y≥30
-160+y≥30
y≥190
Don't steal points
its not cool
i WILL report
and also
answer this and u could have a chance to get brainliest
ill be asking 10 questions
whoever has the best answer in any of these ill give brainliest :D
Answer:
Its 11
Step-by-step explanation:
Answer:
11
Step-by-step explanation:
Given the figure at the photo, which angle represents angle 2? CHOOSE ALL THAT APPLY!
Answer:
a
Step-by-step explanation:
In the diagram below, the lifeguard is 5 ft. tall while sitting and the angle of elevation from the man on the diving board to the lifeguard (angle 2) is 20. How far apart are the two men? Round your answer to the nearest tenth.
Answer:
d the same thing as the one that I was a great place for him to get to know the person you want and what is the answer to the
not sure about this one help please
Answer:
a) -1
Step-by-step explanation:
Slope is also known as the gradient
1. assign a value to x and solve for y:
when x = 2, y = 2
when x = 4, y = 0
2. Next, use the equation of a straight line to find the gradient
y = mx + c
y is the y-coordinate, m is the gradient, x is the x-coordinate, c is the point where the line crosses the y-axis, which is found by equating y to 0 and solving for x
so y = mx + c becomes 2 = m*2 + 4, which then becomes 2 = 2m + 4
2m = -2 (take 4 away from 2)
m = -1
In a fruit punch drink, the 3 ingredients are apple juice, orange juice and cranberry juice. If 1/4 of the drink is apple juice and 3/10 is orange juice then write the ratio of cranberry juice to apple juice to orange juice in its simplest form.
Answer:
5 : 6 : 9Step-by-step explanation:
The drink has 3 ingredients
Apple juice = 1/4 = 25%Orange juice = 3/10 = 30%Cranberry juice = the rest = 100% - (25% + 30%) = 45%The ratio is:
25 : 30 : 45Simplified ratio:
5 : 6 : 9Please Please Please help (6+6)/4
Answer:3
Step-by-step explanation:
Answer:
4
Step-by-step explanation:
Evaluate x + y when x=-87 and y = 34.
-121
-53
53
121
The value of x + y = - 53
What is Linear Equation in 2 variables?
An equation is said to be linear equation in two variables if it is written in the form of ax + by + c = 0, where a, b & c are real numbers and the coefficients of x and y, i.e a and b respectively, are not equal to zero.
Given data ,
The value of x = - 87
The value of y = 34
The equation x + y is calculated by substituting the values of x and y in the equation ,
Therefore , x + y = ( - 87 ) + 34
= -53
Hence , the value of x + y is equal to - 53
To learn more about linear equation click :
https://brainly.com/question/13739733
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round the hundredth:0.678
Answer:
0.68
Step-by-step explanation:
7 is in the hundredth place and since 8 is after and it's bigger than 5, the 7 becomes 8 so 0.68
Hope this Helps!
Someone please help me out please!!!!
Given:
A committee of 6 members is to be chose from the 100 members of the U.S. senate.
To find:
The number of ways to form a committee.
Solution:
We have,
Total number of members = 100
Number of members needs to selected of committee = 6
Number of ways to select r items from total n items is
[tex]^nC_r=\dfrac{n!}{r!(n-r)!}[/tex]
Number of ways to select 6 members from total 100 members is
[tex]^{100}C_6=\dfrac{100!}{6!(100-6)!}[/tex]
[tex]^{100}C_6=\dfrac{100\times 99\times 98\times 97\times 96\times 95\times 94!}{6\times 5\times 4\times 3\times 2\times 1\times 94!}[/tex]
[tex]^{100}C_6=\dfrac{100\times 99\times 98\times 97\times 96\times 95}{6\times 5\times 4\times 3\times 2\times 1}[/tex]
[tex]^{100}C_6=1192052400[/tex]
Therefore, the total number of ways to form a committee is [tex]^{100}C_6[/tex], i.e., equal to [tex]1192052400[/tex].
PLEASE ANSWER ASAP
Figure ABCD has vertices A(- 5, 2) , B(4, 2) , C(4, - 5) , and D(- 5, - 3) . What is the area of Figure ABCD? 9 square units 45 square units 54 square units 122 square units
Answer:
54 square units
Step-by-step explanation:
ABCD = ABED + CED
A and B have same y coordinate
A and D have same x coordinate
AB ⊥ AD
AB = 4 - (-5) = 9
AD = 2 - (-3) = 5
EC = BC - AD = (2 + 5) - 5 = 2
ABCD = 9 x 5 + 1/2 (9 x 2) = 45 + 9 = 54
What is the answer to this?
Answer:
The value of x = -22
Step-by-step explanation:
Given the expression
[tex]-0.57x+0.27x=6.6[/tex]
Add similar elements: [tex]-0.57x+0.27x=-0.3x[/tex]
[tex]-0.3x=6.6[/tex]
Multiply both sides by 10
[tex]-0.3x\cdot \:10=6.6\cdot \:10[/tex]
Refine
[tex]-3x=66[/tex]
Divide both sides by -3
[tex]\frac{-3x}{-3}=\frac{66}{-3}[/tex]
[tex]x=-22[/tex]
Therefore, the value of x = -22
5945 divided by 612??
Answer:
9 437/612
Step-by-step explanation:
Just divide the answers and simplify
X/10*0.24-15.5/7.5=9
Given :
[tex](\dfrac{X}{10}\times 0.24 )- \dfrac{15.5}{7.5} = 9\\\\[/tex]
To Find :
The value of x.
Solution :
[tex](\dfrac{X}{10}\times 0.24 )- \dfrac{15.5}{7.5} = 9\\\\(\dfrac{X}{10}\times 0.24 ) = 9 + \dfrac{15.5}{7.5}\\\\(\dfrac{X}{10}\times 0.24 ) = \dfrac{(9\times 7.5 )+ 15.5}{7.5}\\\\(\dfrac{X}{10}\times 0.24 ) = \dfrac{83}{7.5}\\\\X = \dfrac{83\times 10}{7.5\times 0.24}\\\\X = 461.11[/tex]
Therefore, the value of X is 461.11 .
Read each of the situations below. Write an integer that describes the situation a football player caught a 57-yard pass
Answer:
an integer that describes the situation a football player caught a 57-yard pass.
Step-by-step explanation:
WHAT? YOU TOLD ME TO WRITE THAT NOT ME!!!! T-T next time be more specific YEESH
The graph below shows the number of houses sold over x days. What is the average rate of change from day 2 to day 10? A graph entitle House Sales shows Number of Days on the x-axis, from 0 to 12, and Number of Houses Sold on the y-axis, from 0 to 12. A line connects 5 points. The points are (0, 0), (2, 8), (6, 6), (10, 2), (12, 4). Negative four-thirds Negative three-fourths 6 8
Answer:
-3/4
Step-by-step explanation:
Answer:
-3/4 on EDG 2020
Step-by-step explanation:
Got it Right :)
The grocery store has 20% off from the original price on cereal. The equation for finding the sale price would be y = x - (.20x). What is the sale price if the cereal cost $3.00?
$2.20
$2.50
$2.40
$2.30
Step-by-step explanation:
y = x - 0.2x
y = 0.8x
When x = $3.00, y = (0.8)($3.00) = $2.40.
The sale price is $2.40.
Answer:
$2.40
Step-by-step explanation:
y = x - 20% of x
where x is $3.00
20% would be 1/5 of 3.00 = 3/5
3 - 3/5 = 15-3/5 = 12/5 = $2.40
i need help with this question. all of it is a single question
Answer:
o uh
Step-by-step explanation:
so im sorry im not in college my friend. i see ur in ap, but uh im only 6th
Explain how the applications of inventory management for fixed quantities differ from those for fixed time periods. Give specific instances in which you would use a fixed time period model rather than a fixed quantity model. Provide real-world examples.
Answer:
The main difference between the fixed quantity and fixed time period is that the fixed quantity makes it mandatory for a fixed number of items to be ordered every time an order is made, while the fixed time period has a fixed period orders are received before the next order period.
Step-by-step explanation:
The fixed quantity model is adopted by producers of a product to maintain a package type and also to maximize the profit derived from sales. For example is when ordering or buying eggs from a store, the buyer cannot purchase five eggs since it is packaged in a dozen (12), and so must buy the whole package.
The fixed time model uses time intervals to receive and accumulate orders before delivery is made for every order interval.
What is the constant proportionality, y/x?
Answer:
1.4 in x.y but in y.x it 4.1
Step-by-step explanation:
9i / -2 +7i what is the conjugate of the denominator