Answer:
The Answer is B. 2-5n
Step-by-step explanation:
Multiply 2 by everything within the parenthesis and it leaves you with 3n+ 2-8n
Then combine like terms which are +3n and -8n which leaves you with -5n
A crew is shingling a roof. They complete 6.8 square feet every hour. How many square feet will they complete in 12 ½ hours of work?
Answer:
85 square feet
Step-by-step explanation:
what we know: complete 6.8 square feet every hour
what we want to know: how much square feet will be compeletein 12 1/2 hours?
12 1/2 is 12.5
6.8 square feet time 12.5 hours gives you 85 square feet :)
25 pts
Whats the degree of power function for this table
Answer:
x5
Step-by-step explanation:
Solve the simultaneous equations
5
x
+
2
y
=
11
−
5
x
+
4
y
=
13
Answer:
its 13
Step-by-step explanation:
are u try to find out what x and y equal
A drive-in theater costs $20 per car, plus an additional fee of $4 per person. The cost, C, of the movie when p people are in the car can be represented by this equation: C = 20 + 4p Solve the equation for p to show How many people were in the car when the movie costed C dollars.
Answer:
[tex]P=\frac{C}{4} -5[/tex]
Step-by-step explanation:
Step one:
given
cost per drive= $20
additional fee per person= $4
let the number of persons be p
and the total cost be C
The total cost function is expressed as
[tex]C=20+4p[/tex]
Step two:
Required:
We want to make P subject of the cost function
Take 20 to the other side we have
C-20=4p
divide through by 4
P=C-20/4
simplify
P=C/4-5
[tex]P=\frac{C}{4} -5[/tex]
Will give Brainliest!!!
Layla is going to drive from her house to City A without stopping. Layla plans to drive at a speed of 30 miles per hour and her house is 240 miles from City A. Write an equation for D,D, in terms of t,t, representing Layla's distance from City A tt hours after leaving her house.
Answer:
her distance would be 0 after 8 hours since 8*3 = 24 and just add a zeor behind the 24 from the 30
Step-by-step explanation:
Which of these ineqaulities are equivalent to r greater than -11? Check all that apply.
-r -33
-3r 33
Answer:
Are you sure this two are the only choice.
Step-by-step explanation:
And I think it the first one.
Answer:
can you rewrite your answer bc it makes not sense and there's only two answer choices so can you take a ss of your actual problem please and i'll do my best to answer it :)
3x+5=23 how would I solves this
Answer:
x = 6
Step-by-step explanation:
3x + 5 = 23
you wanna subtract 5 from both sides
3x = 18
now you wanna divide 3 from both sides to get x by itself
x = 6
and thats your answer hope that helped :)
IGNORE EVERYTHING BUT THE EQUATION WHOEVER ANSWERS FIRST GETS BRAINIEST ANSWER
Answer:
−35.948187
Step-by-step explanation:
what is 15 percent 0f 75
PLEASE HELP I'M GETTING GRADED ON THIS!!!!
Is this function even, odd, or neither and why?
Answer:
I'm reallly sorry if this is wrong, but I believe it is neither
Step-by-step explanation:
Odd and even functions need to exhibit some sort of reflection symmetry across the x axis (i think--we are learning this rn) and the graph does not seem to show this so i believe it is neither... i could be wrong thooughh
A bike shop rents each of its mountain bikes for a one-time $4.00 insurance charge plus $2.50 per hour
relationship between the total cost, y, to rent a bike for 3 hours.
Graph
Answer:
$11.50
Step-by-step explanation:
I did give an explanation here but some one deleted it. :( I will attach the graph below though.
Hey you I need help this question if you do I'll vibe with you
Answer:
I'm back bud
Step-by-step explanation:
Angle 1: 138
Angle 2: 84
Angle 3: 42
Angle 4: 42
Angle 5: 96
Angle 6: 42
Find the value of the expression. [(3/5)]-2
Answer:
-1.4
Step-by-step explanation:
Answer:
i think it's 1
Help plz:))) I’ll mark u brainliest
ASAP!!!
Answer:
x= 45
Step-by-step explanation:
the total amount of degrees in a triangle is 180 degrees, so by subtracting 75 and 60 from 180, you'll get 45. :)
Answer:
x=45
cvghjklkjhgfdsdfghjkijuhgtfdfghjki
Hello,if anyone would help me,I would really much appreciate it. I’ve a little stressed about it.Thank you!
Whats the distance (7,0) and (-8,45)
Answer:
[tex]d = 15\sqrt{10}[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDASAlgebra II
Distance Formula: [tex]d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]Step-by-step explanation:
Step 1: Define
Point (7, 0)
Point (-8, 45)
Step 2: Find distance d
Substitute: [tex]d = \sqrt{(-8-7)^2+(45-0)^2}[/tex]Subtract: [tex]d = \sqrt{(-15)^2+(45)^2}[/tex]Exponents: [tex]d = \sqrt{225+2025}[/tex]Add: [tex]d = \sqrt{2250}[/tex]Simplify: [tex]d = 15\sqrt{10}[/tex].6.PS-7
Marco needs to buy some dog food. At the nearest store, 3 bags of dog food cost $11.25. How
much would Marco spend on 2 bags of dog food?
Answer:
$7.50
Step-by-step explanation:
Divide the 11.25 by 3 (since there are 3 bags) you should get 3.75 now multiply the 3.75 by 2 (since marco need 2) and you get 7.50
Which one should I choose
Answer:
3rd one
Step-by-step explanation:
x^2-12x+__=(x-__)2
what’s the answer??
Answer: The answer is x=0
Step-by-step explanation:
Rewrite the equation as a trinomial.
x 2 + 12 x + 0
Move 0 to the right-hand side.
x 2 + 12 x = 0
Divide the coefficient of the x
-term by 2, then square the result. Add the result to both sides.
12 /2 = 6 ;6^2 = 36
x 2 + 12 x + 36 = 36
Factor the perfect square trinomial
x 2 + 12 x + 36
on the left-hand side.
( x + 6 ) 2 = 36
Take the square root of both sides and solve for x .
√ ( x + 6 )^ 2 = ± √ 36 =
x+ 6 = ± 6
x = − 6 + 6 = 0
x = − 6 − 6 = − 12
Check
If x = 0 :
( 0 ) ^2 + 12 ( 0 ) = 0
0 = 0
If x = − 12 :
( − 12 ) ^2 + 12 ( − 12 ) = 0
144 − 144 = 0
0 = 0
How do you write 6,900 in scientific notation?
* 10
Answer:
6.9 x 103
Step-by-step explanation:
HHHHHEEEEEELLLLLPPPPP Parker drove a total distance of 4 and 1 over 2 miles during the months of June and July. If Parker only drove 1 over 8 of a mile every day, which expression shows the number of days he went driving? 4 and 1 over 2 ⋅ 1 over 8 4 and 1 over 2 + 1 over 8 4 and 1 over 2 ÷ 1 over 8 4 and 1 over 2 – 1 over 8
Answer:
use cymath for answer
Step-by-step explanation:
it will explain better
Answer:
C
Step-by-step explanation:
i need help to get my grade up
Answer:
no this is not fair
Step-by-step explanation:
Answer:
b. is not fair
c. not fair
4. Just search on google for a recipe or say PB&J
5. Proprtains can tell you if something is unfair by something being higher than normal.
Step-by-step explanation:
b. if the second option got 75 points then that'll be higher than 15 questions answered correctly.
c. if option 2 traded 24 football cards then that'll be way over 15.
4. More jelly than peanut butter would mean I would have to add more peanut butter.
5. I traded 15 socks and got 10 apples, however, my friend traded 10 socks and got 9 apples. This means if he traded 15 socks then it would've been over 10 apples.
4 g = 16 g= please solve
Answer:
g=4
Step-by-step explanation:
Divide both sides
4g÷4 = 16÷4
Divide
G=4
Nixon recycles 6 cans every week. Which expression shows the total number of cans he recycles in w weeks? 6 + w 6 + 5w w over 6 6w
Answer:
The expression is:
[tex]n = 6w[/tex]
Step-by-step explanation:
let '[tex]w[/tex]' be the number of weekslet '[tex]n[/tex]' be the total number of cansAs Nixon recycles 6 cans every week, so the expression becomes
[tex]n = 6w[/tex]
The perimeter of the rectangle below is 64 units. Find the length of side CD.
Write your answer without variables.
Answer:
CD = 18 units
Step-by-step explanation:
Given a rectangle with length x and width y, the perimeter is:
P = 2x + 2y
Here, we note that x = AB = CD, y = AD = BC, and P = 64 units. So:
2AB + 2BC = 64
We know that AB = 3z and BC = 2z + 2; plug these in:
2 * (3z) + 2 * (2z + 2) = 64
6z + 4z + 4 = 64
10z = 60
z = 6
Now that we've solved for z, we can find AB and, hence, CD because AB = CD.
AB = 3z = 3 * 6 = 18 units
Thus, CD = 18 units, as well.
Lisa read 45 pages in eight minutes how many minutes would it take her to read 36 pages
Answer:
4 1/2 minutes
Step-by-step explanation:
Find the units of displacement of the point (4,2) to get the image of (7,7). Chapter (transformation) (coordinates) (translation). Please answer my questions correctly. Unnecessary answers will be reported.
Answer:
The units of the displacement are (3, 5) → T (x + 3, y + 5)
Step-by-step explanation:
The rules of translation of a point
If the point (x, y) is translated h units to the right and k units up, then its image is (x + h, y + k)If the point (x, y) is translated h units to the right and k units down, then its image is (x + h, y - k)If the point (x, y) is translated h units to the left and k units up, then its image is (x - h, y + k)If the point (x, y) is translated h units to the left and k units down, then its image is (x - h, y - k)∵ Point (4, 2) is translated by (h, k)
∵ Its image is (7, 7)
∴ The x-coordinate of the point is increased from 4 to 7
∴ The point is translated to the right by h units
∵ 4 + h = 7
∴ h = 7 - 4 = 3
∴ The point is translated to the right 3 units
∵ The y-coordinate of the point is increased from 2 to 7
∴ The point is translated up by k units
∵ 2 + k = 7
∴ k = 7 - 2 = 5
∴ The point is translated up 5 units
∴ The point is translated 3 units right and 5 units up
∴ The units of the displacement are (3, 5) → T (x + 3, y + 5)
Find the error & explain why it is wrong:
[tex]( { \frac{4 {x}^{3} }{ {y}^{4} }) }^{ - 2} = \frac{16x {}^{6} }{ {y}^{8} } [/tex]
[tex] \frac{(4 {x}^{3})^{ - 2} }{ { {(y}^{4} )}^{ - 2} } = \frac{16 {x}^{6} }{ {y}^{8} } [/tex]
[tex] \frac{ {16x}^{ - 6} }{ {y }^{ - 8} } = \frac{ {16x}^{6} }{ {y}^{8} } [/tex]
The power of -2 was mistook as 2.
A consumer organization estimates that over a 1-year period 18% of cars will need to be repaired once, 7% will need repairs twice, and 3% will require three or more repairs. If you own two cars, what is the probability that a) neither will need repair? b) both will need repair? c) at least one car will need repair?
Answer:
(a) 0.5184
(b) 0.0784
(c) 0.4816
Step-by-step explanation:
According to the given estimation over a 1-year period, 18% of cars will need to be repaired once, 7% will need repairs twice, and 3% will require three or more repairs.
So, the probability that a car need repair once = 18/100=0.18 ...(i)
The probability that a car needs repair twice = 7/100=0.07 ...(ii)
The probability that a car needs repair thrice or more = 3/100=0.03 ...(iii)
From equations (i), (ii), and (iii), the probability that a car needs repair = (0.18+0.07+0.03) = 0.28 ...(iv)
The probability that a car doesn't needs repair = 1-(0.18+0.07+0.03)= 1-0.28=0.72 ....(v)
Given that I own two cars, denoting the cars by A and B.
(a) The probability that neither will need repair=(Probability that car A doesn't need repair) and (Probability that car B doesn't need repair)
=0.72 x 0.72 [ from equation (v)]
=0.5184
(b) The probability that both will need repair = (Probability that car A needs repair) and (Probability that car B needs repair)
=0.28 x 0.28 [ from equation (iv)]
=0.0784
(c) The probability that at least one car will need repair= 1 - (The probability that neither will need repair)
=1-0.5184 [ by using part (a)]
=0.4816
x2-11x+18=0 need help!
Answer:
x = 2 or
x = 9
Step-by-step explanation:
x² - 11x + 18 = 0
x² - 9x - 2x + 18 = 0
x(x - 9) - 2(x - 9) = 0
(x - 2)(x - 9) = 0
x - 2 = 0 or x - 9 = 0
x = 2 or x = 9
Thus, x = 2 or 9
-TheUnknownScientist
Answer:
x = 2, x = 9
Step-by-step explanation:
Given
x² - 11x + 18 = 0
Consider the factors of the constant term (+ 18) which sum to give the coefficient of the x- term (- 11)
The factors are - 2 and - 9 , since
- 2 × - 9 = + 18 and - 2 - 9 = - 11 , thus
(x - 2)(x - 9) = 0 ← in factored form
Equate each factor to zero and solve for x
x - 2 = 0 ⇒ x = 2
x - 9 = 0 ⇒ x = 9