Answer:
[tex](x+1)^2=4[/tex]
Step-by-step explanation:
[tex]3+x=x^2+3x[/tex] is our equation first, get all the x terms on one side so the equation equals a constant number[tex]3+x-(x)=x^2+3x-x\\3=x^2+2x\\x^2+2x=3[/tex] Then add to both sides the square of half of the coefficient of x : the coefficient of x here is 2 sothe square of half of 2 is [tex](1)^2[/tex] then[tex]x^2+2x+(1)^2=3+(1)^2\\x^2+2x+1=4\\[/tex] If you factor the left side you get [tex]x^2+2x+1=4\\(x+1)^2=4[/tex]Answer:
(x+1)^2 =4
x=-1±2
Step-by-step explanation:
I got it right on khan
Solve v+8<3 or -8v-40 .
If a right triangle has an acute angle of 43 find its complement
Answer:
47°
Step-by-step explanation:
The given angle and its complement sum to 90°, thus
complement = 90° - 43° = 47°
What is the equation of a line perpendicular to y=-2/5X-1 that passes through (2,-8)
Answer:
[tex]y=\frac{5}{2}x-13[/tex]
Step-by-step explanation:
Given the equation
[tex]y=-\frac{2}{5}x-1[/tex]
comparing the equation with the slope-intercept form[tex]y=mx+b[/tex]
Here,
m is the slope b is the interceptso the slope of the line is m = -2/5
As we know that the slope of the perpendicular line is basically the negative reciprocal of the slope of the line,
so the slope of the perpendicular line will be: 5/2
Therefore, the point-slope form of the equation of the perpendicular line that goes through (2,-8) is:
[tex]y-y_1=m\left(x-x_1\right)[/tex]
[tex]y-\left(-8\right)=\frac{5}{2}\left(x-2\right)[/tex]
[tex]y+8=\frac{5}{2}\left(x-2\right)[/tex]
subtract 8 from both sides
[tex]y+8-8=\frac{5}{2}\left(x-2\right)-8[/tex]
[tex]y=\frac{5}{2}x-13[/tex]
2(h - 8) - h = h - 16
[tex]2(h-8)-h=h-16[/tex]
[tex]2h-16-h=h-16[/tex]
[tex]h=h[/tex]
h has infinitely many solutions.
1. 3(x + 4) = 3(x - 5)
(could you please show work)
Chris bought a $568.80 tv with a 40% markup, how much does the tv cost.
Answer: the answer is $796.32
Step-by-step explanation:
Please help ASAP!!!!
Answer:
is B
Step-by-step explanation:
solve:3x=40+x
pls solve this fast
Answer:
x = 20
Step-by-step explanation:
3x = 40 + x
-x -x
2x = 40
Divide both sides by 2
x = 40/2
x = 20
I hope this was helpful! <3
Could I get brainliest?
Answer:
3x=40+x=20
Step-by-step explanation:
Hope this helps!! :)
A rectangular prism has the following dimensions. The base has sides that are 3 cm. and 5 cm. and the height is 9 cm. How many squares with 1 cm edges can cover the entire surface area of the prism completely with no overlaps?
Answer:
174 squares
Step-by-step explanation:
I would start by finding the surface area of the rectangular prism. You can use 2(wl+hl+hw).
2(wl+hl+hw)
2(3*5+9*5+9*3)
2(15+45+27)
2(87)
174 cm^2
The area of squares 1 cm edges would be 1 because 1*1=1, so you could find how many of them would fit on the surface area by dividing 174 by 1, which equals 174.
I need help with this, if anyone can I appreciate it. ✨
Answer:
85, -91
Step-by-step explanation:
Which expression could you write to show how to multiply 9 x 856 using place vale and expanded form.
3. Six neighborhood children - Leisha, Benito, Delia, Charlotte, Weldon, and Zina- were measured
yesterday. Weldon is taller than Delia but shorter than Zina. Leisha is taller than Benito but shorter than
Delia and Weldon. Benito isn't the shortest. Can you list the kids in order of height from tallest to shortest?
Please Help
WORTH 100 points!!!
PLEASE HELP!!!!! PLEASE LOOK AT MY DOCUMENT AND HELP ME!!! I AM NOT UNDERSTANDING THIS AND I NEED TO GET MY GRADE UP!!
A gumball machine contains 23 green gumballs, 52 red gumballs, 34 blue gumballs, 61 yellow gumballs, and 30 pink gumballs.
What percentage of the gumballs are red?
Answer:
26%
Step-by-step explanation:
.Solve for x.
3x = -39
Answer:
x= (-13)
Step-by-step explanation:
You need to get x alone so you have to divide by 3 and -39/3 equals -13
Answer:
x = -13
Step-by-step explanation:
Divide both numbers by 3
3÷3 cancels each other out, leaving x
-39÷3= -13
A concert is $250 per ticket and the cost of parking is free. This is expressed
as p(x) = 250x. If the profit is $6,000 how many tickets were sold?
Answer:
24
Step-by-step explanation:
p(x) = 250x
6000 = 250x
x = 24
Answer:
24 tickets
Step-by-step explanation:
p(x) = 250x
Substitute 6,000 for p(x)
6,000 = 250x
Divide each side of the equation by 250
24 = x
Hope this helps!
Give the function y=-5x+12, what is the output (y) when the input, x=-2?
Answer:
y=22
Step-by-step explanation:
y=-5(-2)+12
y=10+12
y=22
Santino bought a 3 3/7 Lb bag of chocolate chips. He used 2/3 of the bag while baking. How many pounds did he use while baking answer asap
Answer:
2 2/7
Step-by-step explanation:
3 3/7 ÷ 3 = 1 1/7, 1 1/7 x 2 = 2 2/7
What is the measure of AC?
1. Identificamos los coeficientes a, la b y la c
a = 1 ( está al lado de
2
)
b = -8 ( está al lado de X )
c = 7 (término independiente)
Answer:
I don't speak Spanish I'm Sorry
CAN SOME PLZ HELP ME ON THIS ONE!!!!
Answer
d
Step-by-step explanation
The rate is constant
I need help I have 10 more minutes until this quiz ends plz help
Answer:
The second and the third one
Step-by-step explanation:
Answer:
Second, Third, and Sixth box
Step-by-step explanation:
The total number of people is 5 people if each person gets a ticket a popcorn, each price should be multiplied by 5 or the prices could be added then multiplied by 5.
So, the correct answers are:
5(5.50) + 5(3.25)
5(5.50 + 3.25)
5(5+3) + 5(0.50 + 0.25)
3. The Lopez Family meets with a financial planner who advises them to save 15%
of their income per month for college savings for their children. They earn
$8,540 per month. How much will the Lopez family save each month for future
college expenses?
Answer:
1281
Step-by-step explanation:
15% of 8540=1281
bfmnbv help will give brainly
Answer:
tell your friend yall in zooooom
Step-by-step explanation:
Answer:
m=2
b=5
y=2x+5
Step-by-step explanation:
Erick ordered 4 new DVDs by mail. Each costs the same amount and there
was an additional $5 shipping charge that brought the total to $33.
What was the cost of one DVD?
mil Movin at Mayfair, Zal bought a drink for
Answer: $7 each
Step-by-step explanation: 33-5=28 28/4=7
4.1
Twenty two litres(22ltrs) of petrol cost R300. How much will
you pay for one litre of petrol
4.2
A car travels a distance of 330 km at an average speed of 110
km/h. How long does it take the car to travel this distance?
4.3
Calculate the amount that will be in the bank after 4 years if
R2000 was invested at 9% p.a. simple interest
Answer:
4.1 -
300/22= 13.65
so the answer is 13.63
4.2
distance/speed
330/110= 3
So it'll take 3 hours
4.3
sorry not sure for this one :(
4.1
Cost of 22ltrs of petrol = Rs300
Cost of 1ltr of petrol = 300/22
= 150/11
= Rs13.63
4.2
distance = 330km = d
speed = 110km/hr = s
time = d/s
= 330/110
= 33/11
= 3hrs
4.3
SI = principal amount × rate of interest × time
[tex] = 2000 \times \frac{9}{100} \times 4[/tex]
[tex] = 20 \times 9 \times 4[/tex]
[tex] = 720[/tex]
Amount = Principal + SI
= 2000 + 720
= Rs2720
At noon, the temperature was 5 degrees Celsius. By late afternoon, it has risen 6 degrees Celsius. What was the temperature late in the afternoon?
Answer:
11 degress celcius
Step-by-step explanation:
there was an original 5 but it increased by 6
5 + 6 = 11
11 degrees celcuis
Answer:
11 degrees Celsius
Step-by-step explanation:
5+6=11
The perimeter of a given rectangle is 44 inches. The length of the rectangle is two inches more than three times the width. What are the dimensions of the rectangle? Pls help
Answer:
W=5 L=17
Step-by-step explanation:
Hamid has gained weight.
He now weighs 88kg, whish is higher than his normal weight
What is Hamid's normal weight?
Uhm I need help.. If I threw a ball vertically at an initial speed of 34.5 m/s, how many seconds would it take to reach its maximum height?
Answer:
3.8 seconds to reach the maximum height
Hope I helped have a nice day!:)
Step-by-step explanation: