Answer:
B) n=-2
Step-by-step explanation:
First, distribute.
7(1+4n)-5=-38+8n
7+28n-5=-38+8n
Combine like terms.
2+28n=-38+8n
To make solving the equation easier, subtract 8n first, so there isn't a negative variable.
2+28n=-38+8n
-8n -8n
2+20n=-38
Subtract 2 on both sides.
2+20n=-38
-2 -2
20n=-40
Divide by 20 on both sides.
20n=-40
/20 /20
n=-2
Hope this helps!! Have a wonderful day :3
Please help ASAP I’m stuck!!!
Answer:
q <= 1 or q >= 20
Step-by-step explanation:
3q + 2 / 4 <= 5
multiply by 4 to both sides
3q + 2 <= 5
substract 2 to both sides
3q <= 3
divide by 3 to both sides
q <= 1
q - 7 >= 13
add 7 to both sides
q >= 20
x² – x² – 3x + 3
all rational zeros to a polynomial
Answer:
x = 1
Step-by-step explanation:
[tex] {x}^{2 } - {x}^{2} - 3x + 3 \\ - 3x + 3 \\ 3x = 3 \\ x = 1[/tex]
1. 4 ⅙ ÷ 5
2. ⅝ ÷ ¾
3. ⅗ ÷ ⅜
4. ⅜ ÷ ⅝
i am dying help me.
Answer:
number 1 is 0.83333333333
Step-by-step explanation:
Answer: 1. 0.83 or fraction: 5/6
2. 0.83 or fraction: 5/6
3. 1.6 or as a fraction: 1 and 3/5 or improper: 8/5
4. 0.6 or as a fraction: 3/5
Hope this helps! :)
Evaluate ab for a = 2 3/4 and b = 4/5.
Rewrite a as an improper fraction:
2 3/4 = 11/4
Now you have 11/4 x 4/5
Multiply the two top numbers together and the two bottom numbers together.
11x4 / 4x5 = 44/20 now rewrite as 2 4/20 which can simplify to 2 1/5
Ау
10
ca
6
6
х
-10 -8 -6 -4
2
6-8 110
4
-6
-8
-10-
Simplify the exponent in (2r³ × r³)²
Answer:
4r^12
Step-by-step explanation:
brainliest please
Answer:
4r¹²
Step-by-step explanation:
4r³ˣ² x r³ˣ²
4r⁶ x r⁶
4r⁶⁺⁶
4r¹²
John bought 5 notebooks for a total of $10. Which equation could be used to calculate the cost of the notebooks, y, based on the number
of notebooks purchased, X?
I'm pretty sure it's B.
PLEASE HELP QUICK What are the solutions for x when y is equal to 0 in the quadratic function
y= x2 + x - 72?
x = -9 and x = 8 when y = 0 is the answer
Answer: x= -9,8
Step-by-step explanation:
x=?
y=0
y=x^2+x-72
0=x^2+x-72
0=(x+9)(x-8)
x+9=0 x-8=0
-9 -9 +8 +8
x= -9 x=8
2cy + 8m = 2f solve for c
Answer:
c=(f-4m)/2y
Step-by-step explanation:
2cy = 2f -8m
divde both sides by 26
c=(2f-8m)/2y
simplify
c=(f-4m)/y
Why does it make sense to call equations of the form 2,000=20x +10y linear equations?
Step-by-step explanation:
because it's graph will always be a straight line as the values of x increases so does the values of y
Ms. Lincoln has a bucket full of pencils that she would like to divide up equally to her 28 students. If each student got 3 pencils, how many did she start with
Answer:
84
Step-by-step explanation:
28*3= 84
32 ounces of maple syrup for $3.99 OR 48 ounces of syrup for $4.99
Jeremy is $124.60 in debt to his grandparents. He determines that he can pay them back in five months. What effect will his repayment have on his monthly bank account? Will give brainliest!
Answer:
https://brainly.com/question/11536615
Step-by-step explanation:
PLEASE HELPWhich graphs display a directly proportional relationship? Check all that apply.
On a coordinate plane, a line goes through points (0, 0) and (1, negative 3).
On a coordinate plane, a line goes through points (0, 1) and (1, 2).
On a coordinate plane, a line goes through points (0, 0) and (1, 3).
On a coordinate plane, a line goes through points (0, 0) and (2, 2).
Answer:
ACD
Step-by-step explanation:
Answer:
A. C. D.
Step-by-step explanation:
What is the best estimate of -15/16 + (-1/2)
Answer:
-23/16
Step-by-step explanation:
The figures below show sketches of Earl's and Dylan's flower gardens. If the perimeter of each of their gardens is the same, what is the length and width of Earl's garden?
Answer:
[tex] length = 12 ft [/tex]
[tex] width = 8 ft [/tex]
Step-by-step explanation:
Earl's garden:
[tex] length = (x + 6) ft [/tex]
[tex] width = (x + 2) ft [/tex]
[tex] perimeter = 2(length) + 2(width) [/tex]
[tex] perimeter = 2(x + 6) + 2(x + 2) [/tex]
[tex] perimeter = 2x + 12 + 2x + 4 = (4x + 16) ft [/tex]
Dylan's garden:
[tex] length = (2x - 2) ft [/tex]
[tex] width = (x + 4) ft [/tex]
[tex] perimeter = 2(length) + 2(width) [/tex]
[tex] perimeter = 2(2x - 2) + 2(x + 4) [/tex]
[tex] perimeter = 4x - 4 + 2x + 8 = (6x + 4) ft [/tex]
Generate an equation to solve for the value of x.
Since the perimeters of both gardens are the same, therefore:
[tex] 6x + 4 = 4x + 16 [/tex]
Collect like terms
[tex] 6x - 4x = - 4 + 16 [/tex]
[tex] 2x = 12 [/tex]
Divide both sides by 2
[tex] x = 6 [/tex]
Earl's garden:
[tex] length = (x + 6) ft [/tex]
Plug in the value of x
[tex] length = 6 + 6 = 12 ft [/tex]
[tex] width = (x + 2) ft = 6 + 2 = 8 ft [/tex]
Answer:
l: 12ft
w: 8ft
Step-by-step explanation:
what is 5*5+100-99*76
Answer:
-7399
Step-by-step explanation:
mark me brainiest please
Answer:
-7399
Step-by-step explanation:
5*5+100-99*76
25 + 100 - 7524
= -7399
WHO US GOOD AT PRECAL!?
I need someone that will help with alot of work in the future I WILL PAY YOU FOR EACH THING!
Answer:
(-10,-3)
Step-by-step explanation:
okay so first, we can plot the points (-3,2) and (4,7) on a graph. after graphing these points, look at the difference between the y-values. this is 5 because 7-2 is 5. now, look at the x-values. this is 7 because 4-(-3) is 7. so this means we have to go on the other side of the midpoint (-3,2) and go 5 lines down from that point. this brings us at (-3,-3). now, we have to go 7 lines to the left. this is (-10,-3). this is the other endpoint.
you can also graph this on desmos to double-check.
hope this helps:)
Find x and y. Give reasons to justify your solution.
Answer:
x = 36
y = 22
Step-by-step explanation:
Let's solve for x
<EOG is a right angle due to the marking. Since that's the case, m<EOG = 90.
<EOF + <FOG = <EOG
Now let's substitute the values in.
54 + x = 90
x = 36
Let's solve for y
<AOB is 180 because it's a line.
<BOD + <COB = 180 because of supplementary angles
<BOD + 156 = 180
<BOD = 24
Let's create the equation now.
<AOE + <EOF + <FOG + <GOD + <BOD = <AOB
Now let's substitute the values in.
y + 54 + x + 2y + 24 = 180
3y + x + 78 = 180
Now let's substitute 36 for x.
4y + 36 + 78 = 180
3y + 114 = 180
3y = 66
y = 22
Hope this helped! If not, please let me know! <3
HURRY!! THIS ASSIGNMENT IS DUE IN 5MIN!!! THANK YOU!!!!!!
State whether the percent of change is a percent of increase
or a percent of decrease. Then find the percent of change. original: 60, new: 75
Answer:
it's a percent of increase
5.23 as a improper fraction
Answer:
5 23/100
Step-by-step explanation:
Answer:
523/100 (Mixed number - 5 23/100)
1. Which equation shows the proportional
relationship in the table?
Time (weeks) 2 5 10
Trees Planted 130 325 650
A y = 2x
B y = 65x
C y = 130x
D y = 2x + 130
please help.
Answer:
B. [tex] y = 65x [/tex]
Step-by-step explanation:
Equation showing a proportional relationship between two quantities, is usually written as [tex] y = kx [/tex]. Where,
y = output/dependent variable
x = input/independent variable
k = constant of proportionality that exists between each pair of values given.
In this case:
y = trees planted
x = time (weeks)
To find the constant of proportionality, k, use any given pair as (x, y). Let's use (10, 650).
Substitute y = 650 and x = 10 into [tex] y = kx [/tex], and solve for the value of k.
[tex] 650 = k(10) [/tex]
Divide both sides by 10
[tex] \frac{650}{10} = k [/tex]
[tex] 65 = k [/tex]
[tex] k = 65 [/tex]
Substitute k = 65 into [tex] y = kx [/tex] to generate the equation that shows the proportional relationship in the table:
[tex] y = 65x [/tex]
please help with this, i don’t understand it.
Answer:
Im pretty sure its 50
Step-by-step explanation:
A line is 180° so you add
65 + 65 = 130
Then subtract 180
180 - 130 = 50
Hope that helps
Answer:
50
Step-by-step explanation:
The total degrees is 180 so
use the equation 65+65+x=180
simplify
130+x=180
minus 130 on both sides
x=50
verbally explain how to obtain the graph of the quadratic function f(x)=-2(x+3)^2-4 from the graph of y=x^2.
Answer:
The graph f(x)=[tex]-2(x+3)^2-4[/tex] is a reflection over the x-axis, vertical stretch by a factor of 2, a horizontal translation left 3 units and a vertical translation 4 units down of the graph y=[tex]x^2[/tex].
Step-by-step explanation:
The graph f(x) is reflected over the x-axis because the negative is outside of the parenthesis.
it's a vertical stretch by a factor of 2 because 2 is outside of the parenthesis and is greater than 1.
(x+3) is a horizontal translation left 3 units because it is inside the parenthesis.
-4 is vertical translation 4 units down because it is outside of the parenthesis.
An athlete is jumping. However, every time she jumps she gets a bit more tired, and every jump goes 1/2 as far as her prior jump. Now, for her very first jump, she goes 1/2 of a foot. On her second jump, she goes 1/4 of a foot, and so on and so forth. How many jumps does it take for her to travel 1 foot?Immersive Reader
Answer:
She will never complete 1 foot
Steps:
1) We will find the maximum value of this process, when this is carried out infinite times.
This process goes like a Infinite GP, whose
First term,a = 1/2ft.
Common Ratio, r = 1/2ft.
Maximum value of this process is One Foot when the athlete jumps forever or Practically, she will never complete her 1 foot.
Hence, Athlete will never complete. her complete .
Starting from 1/2 ft. ,and ending at 1 foot.
The value always tends toward 1 but never reaches one.
what does democracy mean and how do we practice it in the United States of America PLEASE HELPPP!!!!
Answer:
a system of government by the whole population or all the eligible members of a state, typically through elected representatives. The United States is one of the world's developed democracies where third parties have the least political influence. The federal entity created by the U.S. Constitution is the dominant feature of the American governmental system.
Step-by-step explanation:
(12p^2 + 15p + 3) - (2p^2 + 17p - 2)
Answer:
10p² - 2p + 5
Step-by-step explanation:
Step 1: Write expression
(12p² + 15p + 3) - (2p² + 17p - 2)
Step 2: Distribute negative
12p² + 15p + 3 - 2p² - 17p + 2
Step 3: Combine like terms
10p² - 2p + 5
You buy 5 pounds of nails at the store. How many ounces is that?
Answer:
80 ounces
Step-by-step explanation:
One pound equals 16 ounces
16 times five is 80 ounces
cuantos triangulos tiene un octagono ?
Answer:
8
Step-by-step explanation:
Se divide el octógono en ocho triángulos (T1, T2, T3, T4, T5, T6, T7 y T8) . Estos triángulos cumplen que uno de sus lados es un lado del octógono y que todos confluyen en un mismo punto interior del octógono.
Seven less than the product of a number and -4 is 41
the unknown number is -12, 41+7=48
48/-4=-12
