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Is 7 a solution for the equation 3(x + 4)= 2x - (-2x)?
Step-by-step explanation:
3x+12=2x+2x
3x+12=4x
3x-4x=-12
-x=-12
x=12
Answer:
no, the answer is x = 12
Step-by-step explanation:
3(x + 4)= 2x - (-2x)
3(x + 4)= 2x + 2x
3x + 12 - 12 = 4x - 12
3x - 4x = 4x - 12 - 4x
-x = -12
x = 12
4. Michelle sets up tables for her art class student. Each square table can seat two people 20 points
on each side. How many people can be seated if 8 square tables are pushed together in a
row? *
O A. 36 people
B. 24 people
C. 32 people
O D. 6 people
Answer:
Hate to say it but if there is 2 people per square table and there are 8 tables in a row it would seat 16 people
Step-by-step explanation:
8 x 2 = 16
SRY :(
In ΔOPQ, o = 500 cm, p = 600 cm and q=380 cm. Find the measure of ∠P to the nearest 10th of a degree.
Answer: 84.8°
Step-by-step explanation:
a²+b²+c²-2bc(cosA)
cosA = b² + c² - a² / 2bc
That is the formula we will be using.
Then, plug in our numbers.
cosP= 500² + 380² - 600² / 2(500)(380)
cosP= 34400/380000
cosP≈ 0.09052631
cos⁻¹(0.09052631) ≈ 84.81
∠P = 84.8°
Determine the area of the following circle
31.4 sq.in.
78.5 sq.in.
15.7 sq.in.
314 sq.in
Answer:
31.6 sq.in i got by using 2pier formula
Step-by-step explanation:
area of a circle = πr²
where π = pi = 3.14
r = radius = 5in
area= 3.14 (5²)
= 3.14 x25
= 78.5 sq.in
Compare the graph of y = 4x and y = 4x + 1.
how are they the same how are they different
Answer:
Step-by-step explanation:
Notice that the difference is in the y-intercept. The first equation has a y-intercept of 0 since y = 4x + 0, the second has a y-intercept of 1 since
y = 4x + 1. In other words, the graph is translated up 1 unit to cross at (0,1) instead of (0,0)
Please answer I’ll make brainliest
Answer:
1 single foot
you just subtract lol
y = 9x + 14
y = 4x + 49
Answer:
x = 7; y = 77
Step-by-step explanation:
y = 9x + 14
y = 4x + 49
Since both equations are solved for y, set the two right sides equal and solve for x.
9x + 14 = 4x + 49
5x = 35
x = 7
Sow substitute 7 for x in the first equation and solve for y.
y = 9x + 14
y = 9(7) + 14
y = 63 + 14
y = 77
Answer: x = 7; y = 77
Answer:
x=7 y=77
Step-by-step explanation:
Subtract 4x from 9x you get 5x
subtract 14 from 49 you get 35
5x=35
9*7=63+14=77
4*7=28+49=77
Order the following numbers from least to greatest : 2.67 5.28 1.73 4.92 2.56
Answer:
is this helpful i hope it is
the system of equations y=-3x+2 and y=2x-6 is shown on the graph below.
Answer:C
Step-by-step explanation:
Write the equation of a line in slope-intercept form with a slope of 2 and
passes through the point (-3,1)
Answer:
y = 2x + 1
Step-by-step explanation:
Hope this helps!
Britney is passionate about movies and dreams of going to film school. Her goal for the next
year is to watch every movie that won the Academy Award for Best Picture. She's already
seen some of them and now plans to watch one per week until she's seen them all. After
following her plan for 2 weeks, Britney has seen 15 of the Best Picture winners. After 7
weeks, she has seen 20 of them.
In this relationship, x represents how long (in weeks) Britney has followed her plan, and y
represents the number of Best Picture winners she has watched.
Graph two points for this relationship and the line passing through them.
50
What is an equation of the line that passes through the point ( − 1 , − 3 ) and is perpendicular to the line x − 2 y = 14? pls answer will mark you as brainiest
Answer:
y = -2x - 5
Step-by-step explanation:
First rewrite the second equation into y = mx + b format:
x - 2y = 14
2y = x - 14
y = x/2 - 14/2 (Divide both sides by 2)
y = 1/2x - 7
A line perpendicular to another has the negative reciprocal slope
So the slope of our first equation is -2. (Flip 1/2 = 2, then take the opposite)
Plug in the points (-1, -3) for the x and y coordinates.
x (x coordinate) = -1
y (y coordinate) = -3
slope (m) = -2
-3 = -1(-2) + b
-3 = 2 + b
-3 - 2 = b
b = -5
The equation of the line is y = -2x - 5. Hope this helps! :)
Answer:
y = -2x - 5 or 2x + y = -5
Step-by-step explanation:
Let's find the slope of the given line.
-2y = -x + 14
y = 1/2(x) -7
m = 1/2
The slope of a line perpendicular is the negative reciprocal of 1/2, which is -2
Now use the point-slope form of a line
y + 3 = -2(x + 1)
y + 3 = -2x - 2
y = -2x - 5 or 2x + y = -5
Vertex of -2x2-16+3
What is the y-intercept of this line?
Answer:
(0, -3)
Step-by-step explanation:
because at that point is where the line crosses the y axis.
4. Find the measure of arc WXY.
Answer:
200
Step-by-step explanation:this problem is actually very simple. a circle and a max measure of 360 so all you do is subtract 160 from 360 and there you go. :)
An item is regularly priced at $24. Christine bought it on sale for20% off the regular price.How much did he pay for it
Answer:
$19.2
Hope this helps!! :)
Answer:
$19.20
Step-by-step explanation:
First find how much 20% of 24 is.
What is 20% of 24?
Y is 20% of 24
Equation: Y = P% * X
Solving our equation for Y
Y = P% * X
Y = 20% * 24
Converting percent to decimal:
p = 20%/100 = 0.2
Y = 0.2 * 24
Y = 4.8
Then subtract that from $24
Which gives you $19.2
Hope I helped.
I need help!I’ve been struggling on this worksheet for so long!
Answer:
I think that the answers to this question are B , C .
A house was purchased in 2012 for $150,000 If the value of the home increases by 3% each year, what will the house be worth in the year 2015?
Factor completely 2x2 − 2x − 40
Answer:
2(x-5)(x+4)
Step-by-step explanation:
6/7x21 please help i need this to finish early
Answer:
6/7 x 21 = 18
Answer:
the answer is 18 hope this helped :)))
Help due soon plzzzz help
Answer:
5x + 25 <= 200
Step-by-step explanation:
When it says no more than 200, that means that 200 is the max, so what she spends has to be less than or equal to 200.
Help plsss
Calculate the area
Answer:
140 feet squared
Step-by-step explanation:
Let's do this step by step. First, let's find the area of the rectangle, which is 8 times 10. It equals 80. Next, do the trangle. 6 times 10 is 60. So, 60 plus 80 equals 140.
Answer:
area of rectangle =L*B
8*10=80ft^2
area of triangle=1/2b*h
h is 8 ft
1/2*6*8
3*8
24ft^2
total area is 80+24
104ft^2
nearest tenth = 100 ft^2
Which shows the factored form of x2 – 12x – 45?
Answer:
(x - 15) ( x + 3)
Step-by-step explanation:
x² - 12x - 45
= x² - (15 - 3)x - 45
= x² - 15x + 3x - 45
= x(x - 15) + 3(x - 15)
= (x - 15) ( x + 3)
What is the value of 47 × 12 + 12 × 53 + 53 × 8 + 8 × 47?
Answer:
2000
Step-by-step explanation:
please mark me brainliest
I need help with this it’s hard for me
Answer:
12.3 - 7.9x
hope it helps XD X) :)
A sheet of origami paper is in the shape of a square with a side length of 7 inches, as shown. What is the area of the sheet of origami paper?
The answer is C!!
I took the unit test, your welcome tehe UwU
Answer:
what was c?
Step-by-step explanation:
Amir pits £3035 into a bank account. The account pays 4% compound interest each year. Work out how much money amir will have in the account after 6 years
Answer:
[tex]\£3840.2[/tex]
Step-by-step explanation:
Let P denotes principal amount, T denotes time period and R denotes rate of interest.
Amount = [tex]P(1+\frac{R}{100})^T[/tex]
Amir pits £3035 into a bank account. The account pays 4% compound interest each year.
Put [tex]P=\£3035,\,R=4\%,\,T=6[/tex]
Amount = [tex]3035(1+\frac{4}{100})^6=3035(\frac{104}{100})^6=\£3840.2[/tex]
Therefore, Amir will have [tex]\£3840.2[/tex] in the account after 6 years.
I will mark as brainliest plzz!!
Which equation is true for X = 1.8
Answer:
x=9/5
and as a decimal it is 1.8
Step-by-step explanation:
Es la segunda es la que empieza por 3
Please answer this quickly
Answer:
Polynomial with 4 terms
Please help me, i need this done ASAP!!!
Answer:
100 inches
Step-by-step explanation:
Given that the mans height is 71 inches. Height of lamp is 108 inches and distance between them is 52 inches. For Figure refer to attachment . The given figure both triangles are similar by AA similarity Condition. So we know that the corresponding parts of similar triangles are proportional .Let Distance between man a d its shadow be x .
Using this concept ,
=> AM / PN = QA / QP
=> 108 / 71 = 52 + x / x
=> 1.52 x = 52 + x
=> 1.52 x - x = 52
=> 0.52 x = 52
=> x = 52/0.52
=> x = 100 in .