Answer:
f(3) = 6
Step-by-step explanation:
F(3)=-(3)2+4(3)
f(3) = -6 + 12
f(3) = 6
An equation is shown below:
4(x − 3) − 5(x + 1) = 3
Which statement shows a correct next step in solving the equation?
The equation can become 4x − 3 − 5x + 1 = 3 by applying the associative property of multiplication.
The equation can become 4x − 3 − 5x + 1 = 3 by applying the distributive property.
The equation can become 4x − 12 − 5x − 5 = 3 by applying the distributive property.
Answer:
The equation can become 4x − 12 − 5x − 5 = 3 by applying the distributive property.
Step-by-step explanation:
By applying the distributive law to this equation, we can produce the equation :
4x − 12 − 5x − 5 = 3;
The distributive property is a mathematical function in which each element in the parentheses is multiplied by the one outside of it;
4(x − 3) − 5(x + 1) = 3
In the equation;
4 distribute over the first parentheses and -5 over the second one;
So we expand;
4x - 13 - 5x -5 = 3
In distributive property, expansion simply takes place.
Solve each of these equations.
3(n+2)=9(6-n)
Answer:
n= 4
Step-by-step explanation:
3n+6= 54- 9n
12n= 48
n=4
Answer:
4
Step-by-step explanation:
3n+6=54-9n
-3n
6=54-12n
-54
-48=-12n
N=4
5+4(8n-8)=-1+6 for n
Answer:
n=1
Step-by-step explanation:
5+4(8n-8)=-1+6
5+32n-32=5
5+32n-32=5
-27+32n=5
32n=32
n=1
Answer:
n = 1
Step-by-step explanation:
5 + 4(8n - 8) = -1 + 6
First you have to distribute the 4 leaving the equation to look like this...
5 + 32n - 32 = -1 + 6
Now solve the constants (normal numbers without a variable)
-27 +32n = 5
+27 +27 You have to add 27 to BOTH sides
32n = 32
n = 1
Hope this helps and have a great day!
Martin painted 255 square feet of his kitchen wall with 23 gallon of paint. If he continues coverage at the same rate, how many square feet can he cover with 2 gallons of paint?765 ft2510 ft2382.5 ft21,020 ft2
Complete Question
Martin painted 255 square feet of his kitchen wall with 2/3 gallon of paint. If he continues coverage at the same rate, how many square feet can he cover with 2 gallons of paint?765 ft2510 ft2382.5 ft21,020 ft
Answer:
765 square ft
Step-by-step explanation:
2/3 gallon of paint = 255 square feet
2 gallons of paint =
Cross Multiply
2 × 255 square feet/2/3 gallon of paint
= 510 ÷ 2/3
= 510 × 3/2
= 765 square feet
Given m|n, find the value of x.
Answer:
33 degrees
Step-by-step explanation:
Corresponding Angles Postulate
Answer:
33°
Step-by-step explanation:
if m||n then the angle represented with x° and 33° must be equal because these angles are corresponding.
What is the percent of change in the cost of a DVD set that originally sold for $49.99 and is now
on sale for $24.99? Round to the nearest percent.
Answer:
50% decrease
Step-by-step explanation:
49.99 - 29.99 = 25
25
---- = 0.5(100) = 50%
49.99
Answer: I dont know witch one you want me to round so I will do both. $49.99 = $50.00 and $24.99 = $25.00 and if you want to add them it would be $75.00
I need help!!!
-10 = -5 (v-4)
a) 12
b) 6
c) 3
d) -8
What's the answer I need to know?!
Answer:
i think it is B
Step-by-step explanation:
i am not 100% sure
Answer:
B.
Step-by-step explanation:
-10 = -5 (v-4)
-10=-5v+20
-30=-5v
6=v
Please help! Will give brainliest!
Answer:
D.5
Step-by-step explanation:
4*5=20
8*5=40
12*5=60
..etc
brainliest?
A snail can move approximately 0.30 meters per minute. How many meters can the snail cover in 20 minutes?
Answer:
6
Step-by-step explanation:
0.30
x 20
6
Help math question 1 ,2 ,3 grade 12
Answers:
1.
a. 20%
60/300 × 100/100
= ( 60 × 100 / 300 ) × 1/100 = 20/100
Calculator: 60 ÷ 300 × 100
b. 90%
270/300 × 100/100
270/300 × 100/100= ( 270 × 100 / 300 ) × 1/100 = 90/100
Calculator: 270 ÷ 300 × 100
c. 58.33%
175/300 × 100/100
100/100= ( 175 × 100 / 300 ) × 1/100 = 58.33/100
Calculator: 175 ÷ 300 × 100
2.
a. 35 Students
Calculator: 10 × 350 / 100
b. 93
Calculator: 10 × 930 / 100
c. 118
Calculator: 10 × 1180 / 100
d. 1036
Calculator: 10 × 10,360 / 100
3.
a. 11.1 (Repeated)
Calculator: 50 / 450 × 100%
b. 6.67 (6 Repeated)
Calculator: 50 / 750 × 100%
c. 4.167 (6 Repeated)
Calculator: 50 / 1200 × 100%
Hopefully this helps:)
Question 4
2 pts
If a = -3, b = 2 and c = -4 find the value of the expression.
a2 +b²
Answer:
-2
Step-by-step explanation:
Order of Operations: BPEMDAS
Step 1: Define
a2 + b²
a = -3
b = 2
c = -4
Step 2: Substitute and Evaluate
2(-3) + 2²
-6 + 4
-2
Answer:
1
Step-by-step explanation:
Can you please help me solve this and show the solution 4y⁴+6y?
Answer:
4y^4 + 6y = 256y + 6 = 262y
Step-by-step explanation:
Remove the variables for a second and think of the problem as a normal expression; 4^4 + 6
Simplify the first term; 4^4 = 256
Now, add 6; 256 + 6 = 262
Add back in the variable; 262y
Answer:
2y(2y+3)
Step-by-step explanation:
2y(2y) +6y factor 2y out of 4y^2
2y(2y)+2y(3) factor 2y out of 6y
2y(2y + 3) factor 2y out of 2y(2y)+2y(3)
Is the following relation a function?
Answer:
Step-by-step explanation:
It’s a function
Answer:
yes it is a function
Step-by-step explanation:
since the x values dont repeat itself like there are no two of any of the x values then it is a function
What is the slope of the line that passes through the points M (-3,5) and N (1,8)
Answer:
m=3/4
Step-by-step explanation:
See the attached above.
Hope it helps :)
The slope of line passing through M (-3,5) & N (1,8) will be 3/4.
We have been given a line passing through points M (-3,5) & N (1,8) .
We have to find out what will be the slope of the line ?
What is the formula for slope of a line ?
Slope of line is given by , m = (y2-y1) / (x2-x1).
Given that line is passing through points M (x1 , y1) and N (x2,y2) or M (-3,5) & N (1,8).
here , x1 = -3 , y1 = 5 , x2= 1 . y2 = 8
The slope (m) of line will be ;
∵ m = ( y2-y1) / (x2-x1)
m = ( 8-5) / (1- (-3))
m = 3 / 4
To learn more about slope of line click here ,
https://brainly.com/question/16949303
#SPJ6
1. To participate in a school trip, Kim had to earn $85 in one week. Kim could earn $8 per
hour babysitting and $15 per hour for yard work, but Kim's parents limit work time to 8
hours per week. How many hours should she spend doing each type of work?
a
First define your variables.
b. Write two equations, one that represents the condition on the total number of hours to be
worked and the other which relates the number of hours worked at each job towards her
goal.
-3(5x+2)-(6x-5)
correctly simplify the expression
Answer:
-21x-11
Step-by-step explanation:
-3(5x+2)-(6x-5)
use distributive property
-15x-6 - 6x-5
put like terms together
-15x-6x-6-5
simplify
-21x-11
hope this helps
You move up 4 units and right 2 units. You end at (-1, 3). Where did you start?
Answer:
You started at (-3,-1)
Emily plans to put her graduation money into an account and leave it there for 4 years while she goes to college. She receives $750 in graduation money that she puts into an account that earned $127.50 in interest. What was the interest rate that the bank provided
Answer:
887.40
Step-by-step explanation:
amount = principal(1i)^n
i = .0425/2 = .02125 , n = 8 , principal = 750
amount = 750(1.02125)^8 = 887.40
Which expression uses the associative property to make it
easier to evaluate 6(1/3•7/5)
O A. (6.1/3)7/5
O B. (6•5/7)1/3
O C. 6(7/5•1/3)
OD 3(1/6•7/5)
Answer:
A
Step-by-step explanation:
Here, we want to select which of the expressions correctly use the associative property
The associative property deals with rearrangement
So for (a + b) + c
we can have (a + c) + b
In the case of this question, the associate property is the one that makes the evaluation easier
Thus;
we need to bring 1/3 and 6 together since 3 is a factor of 6
We have;
(6•1/3)7/5
12a^3b^2c
A: The degree is 6
B: The degree is 3
C: The degree is 4
D: The degree is 5
Answer:
b. the degree is 3
Step-by-step explanation:
degree is the highest exponent
A 2-column table the first column is labeled Minutes per Week of Moderate/Vigorous Physical Activity with entries 30, 90, 180, 330, 420. The second column is labeled Relative Risk of Premature Death with entries 1, .8, .73, .64, .615.
According to the data, how does a persons relative risk of premature death change in coloration to changes in physical activity?
The risk of dying prematurely increases as people become more physically active.
The risk of dying prematurely does not change in correlation to changes in physical activity.
The risk of dying prematurely declines as people become more physically active.
The risk of dying prematurely declines as people become less physically active
Answer:
its c on edge
Step-by-step explanation:
Answer:
C. The risk of dying prematurely declines as people become more physically active.
Explanation: This is the correct answer on Edge 2021, just did the assignment. Hope this helps ^-^.
WILL MARK BRAINLIEST PLEASE HELP
options are
A. 13
B. 15
C. 26
D. 28
Answer:
weird it should be 65.5 or the other way around hm
Step-by-step explanation:
or maybe im just dumb
answer plss. Money here.
Answer:
Both angles are equal because they are corresponding so:
2x + 5 = 3x - 7
2x + 12 = 3x
x = 12
Solve the equation for z.
-8z + 1 = z-8
Answer:
z= 1
Step-by-step explanation:
move the like terms, collect then calculate, divide on both sides :)
Answer:
z equals -1
Step-by-step explanation:
-8z + 1 = z-8
-9z + 1 = -8
-9z + 9
-9z ÷ 9
z = -1
382.993 to the nearest hundredth
Answer:
That number rounds to the nearest hundredth to this number: 382.99
Find the range for the measure of the third side of a triangle given the measures of the other two sides are 4 and 8
Answer:
4 < x < 12
Step-by-step explanation:
Given 2 sides, then let x be the third side and
difference of 2 sides < x < sum of 2 sides , that is
8 - 4 < x < 8 + 4
4 < x < 12
Arrange the four numbers shown in order from least to greatest
6.7%
0.67
6/9
6.7×10-3
Answer:
Step-by-step explanation:
6.7 x 10 - 3
6.7%
6/9
0.67
In my opinion this should be the answer
Which represents the solution set to the inequality 5.1(3 + 2.2x) > –14.25 – 6(1.7x + 4)?
Answer:
The answer is x > -2.5 or (-2.5,infinity)
Step-by-step explanation:
9)
If l||m and jik,
find the value of y.
(6y + 7)°
1
(5x)
(7x + 24°
m
k
A 7
B) 13
C) 18
D) 65
jump roping
spinning in circles
eating gummy bears
finger painting
9514 1404 393
Answer:
C) 18 eating gummy bears
Step-by-step explanation:
The angles indicated with x-expressions are supplementary, so we have ...
(5x) +(7x+24) = 180
12x +24 = 180 . . . collect terms
x +2 = 15 . . . . . . divide by 12
x = 13 . . . . . . . . . subtract 2
Then the obtuse angle is ...
7x +24 = 7(13) +24 = 115
__
The angle marked with a y-expression is a corresponding angle to this, so has the same measure.
6y +7 = 115
6y = 108 . . . . subtract 7; next divide by 6
y = 18
Answer:
y=18
Step-by-step explanation:
5x+7x+24=180
12x+24=180
12x=156
x=13
6y+7+65=180
6y+72=180
6y=108
y=
BRAINIEST IF RIGHT George and his dad are planning to attend the state fair. An adult ticket is $19.00. The price of an adult ticket is one third the price of a student ticket plus $15.00. Write an equation to determine how much George will pay for a student ticket.
A one thirdx + 19 = 15
B one thirdx + 15 = 19
C one thirdx − 19 = 15
D one thirdx − 15 = 19
Answer:
1/3x+15=19
Step-by-step explanation:
so B
Answer:
its b
Step-by-step explanation:
you dont know the price if the student tick so it represents x... one third of a student ticket would be one thirdx. after you do that you will have to add the extra 15 dollars to it in order to get the price if 19 dollars per adult ticket.