Answer:
hmm i think its answer B hope i helped :)
Step-by-step explanation:
Solve by taking the square root of both sides.
3 (x +3)^2 – 81 = 0
a. X = -3 -3 sqrt 3 or -3 + 3 sqrt 3 c. 3 sqrt 3 or 3 + 3 sqrt 3
b. X = -3 -6 sqrt 3 or -3 + 6 sqrt 3 d. 3 sqrt 3 or -3 + 3 sqrt 3
Answer:
a
Step-by-step explanation:
Given
3(x + 3)² - 81 = 0 ( add 81 to both sides )
3(x + 3)² = 81 ( divide both sides by 3 )
(x + 3)² = 27 ( take the square root of both sides )
x + 3 = ± [tex]\sqrt{27}[/tex] = ± 3[tex]\sqrt{3}[/tex] ( subtract 3 from both sides )
x = - 3 ± 3[tex]\sqrt{3}[/tex]
x = - 3 - 3[tex]\sqrt{3}[/tex] or x = - 3 + 3[tex]\sqrt{3}[/tex] → a
Answer:
a
Step-by-step explanation:
Two buses are moving towards each other, one at a speed of 40 mph and the other at a speed of 50 mph. How much closer to each other will they be in two hours?
Answer:
180 miles
Step-by-step explanation:
The are moving towards each other at 50 mph and 40 mph which is the same as 90 mph. They are moving 90 mph closer to each other every hour so in 2 hours it would be 180 miles.
please look at the image provided.
So the value of X is 3.
look at the attached picture
Hope it will help you
Good luck on your assignment
Answer:
[tex]x = 3[/tex]
hope this helps
brainliest appreciated
good luck! have a nice day!
Please help me with this question
Find the product of (6-10i) and it’s conjugate.
Product = ?
FYI: the answer is not 6-10i or 6+10i
Answer:
136
Step-by-step explanation:
(6-10i)(6+10i)
36 +60i - 60i - 100i²
36 - 100i² (i² = -1)
36 + 100
136
Answer: 136
Step-by-step explanation:
First, we need to find the conjugate before we can find the product of the conjugate and 6-10i.
The conjugate is the binomial with an opposite sign.
6+10i
Now that we have our conjugate, we can find the product.
(6-10i)(6+10i) [distribute the factors, FOIL method]
36+60i-60i-100i² [combine like terms]
36-100i² [i²=-1]
36-100(-1) [multiply and subtract]
36+100=136
Our product is 136.
Will mark brainliest for the answers. the 'try this' question.
Answer:
6%
Step-by-step explanation:
you do 2,700/45,000 to get .06
multiply by a 100 to get the percent
Ramp Learning
Consider the expression 2(−2y+8).
Identify the equivalent expression below that demonstrates distributive property.
56. If 6 men plough a field in 10 hours, how many hours will it take 4 men to do the same work? (Assuming they are
working at the same rate).
A 8 B. 15 C. 20 D. 25 E. 27
Answer:
15 hours, or B
Step-by-step explanation:
6 men - 10
12 men - 5
4 men - 15
Please mark as brainliest
Answer:
15 hours
Step-by-step explanation:
10/6 ≈ 3.7
4 * 3.7 = 14.8
-round it up-
14.8 ≈ 15
Which of the following represents 1% of 300
•1
•3
•3/100
•30
Answer:
it's •3
Step-by-step explanation:
1/100 × 300/1 =3
100 into 300 is 3
then equal to 3/1
any number over one is it self
A boy sent a telegram which contains 36 words to his mother if the first 12 words cost $20 and each additional word cost 2$ per word how much did he pay ?
Answer:
(d) 60 kobo
Step-by-step explanation:
36 divided by 12 = 3
3 x 20 = 60
Hope this helps!
Help me, please ...i dont understand
Mrs. Sloane has $500 to buy a video game console and some video games for her family. Including tax, the video game console costs $280, and a video game costs $25.
*please help asap!!! kind of being timed here:(
-must haves:)…
right answer.
step-by-step.
makes sense.
^ I will mark someone the brainiest if they help me :)
Answer:
1 console and 8 games because
Step-by-step explanation:
one console cost 280 and each game costs 25 so do 500-280=220 so, u have 220 dollars left basically. 220/25=8.8 so 8 games u can buy and the tax will be $20 because 0.8 * 25 = 20 so theres ur tax and u have to answer my question
The maximum number of video games Mrs. Sloane can buy is,
⇒ 8
What is Inequality?A relation by which we can compare two or more mathematical expression is called an inequality.
Given that;
Mrs. Sloane has $500 to buy a video game console and some video games for her family.
And, Including tax, the video game console costs $280, and a video game costs $25.
Now, Let the maximum number of video games = x
Hence, We can formulate;
⇒ 25x + 280 ≤ 500
⇒ 25x ≤ 500 - 280
⇒ 25x ≤ 220
⇒ x ≤ 8.8
Hence, The maximum number of video games Mrs. Sloane can buy is,
⇒ 8
Learn more about the inequality visit:
https://brainly.com/question/25944814
#SPJ6
Complete question is this,
Mrs. Sloane has $500 to buy a video game console and some video games for her family. Including tax, the video game console costs $280, and a video game costs $25. Drag and drop three numbers and one inequality symbol to show the inequality that can be used to determine the maximum number of video games, x, Mrs. Sloane can buy?
The length of a rectangle is twice its width. The perimeter of the rectangle is 156 feet. What is the length and the width of the rectangle?
Answer:
Length = 26, Width = 52
Step-by-step explanation:
156/6 = 26
26*2=52
Answer: The length will be 52 and the width will be 26
Step-by-step explanation:
If the formular to calculate Perimeter of a rectangle is
P = 2* (L+W)
and the length L= 2W.
156 = 2* (2W+ W)
156 = 2* (3W)
156 = 6W
Solving for W
W= 26
Since in the question the Length L is 2* W(width)
L= 2* 26 = 52
Solve for x.
x/p³=1
NO ANSWERS CONTAINING CURSE WORDS OR YOU GET REPORTED!!!!!!!!!!!!!!
Answer:
Since x/p³ = 1 we can multiply the equation by p³ so x = p³.
Answer:
[tex]$\frac{x}{p^3}=1$[/tex]
Multiply both sides by [tex]p^3[/tex]
[tex]x=p^3[/tex]
and [tex]p^3 \neq 0[/tex] otherwise, it is undefined.
Matthew obtained a balloon mortgage but was late on a few payments during
the period of the loan. Which of the following is an unlikely option for him
once the balloon payment becomes due?
A. Sell the home
B. Refinance the balloon payment
C. Foreclosure
D. Pay balloon payment in full
Answer: A
Step-by-step explanation:
Help!!due today help as quickly plz
Answer:
Step-by-step explanation:
The answer will be
2/16 + 5/8 = 3/4
What is the measure
Step-by-step explanation:
73+x=90 (right angled triangle)
x=90-73
x=17
If 560 were surveyed, how many chose red for the color of the new team jerseys?
Blue - 33%
Red - 25%
Orange - 17%
Purple - 15%
Other - 10%
What is the domain of the graphed function?
{x|1
{y|1
{x\ x is a real number}
O fyly is a real number}
Answer:
y 1 X (a)y=X2—1 y —l 0 l x <b>y= |x2—1| FIGURE |0 x (input) f(g(x)) (output) FIG ... FROM OLD FUNCTIONS 4| I] EXAMPLE 5 Sketch the graph of the function y = |x2 ... a manner similar to the way we add, subtract, multiply, and divide real numbers. ... but we can't divide by O and so the domain of fly is {x E A O B| g(x) 75 O}.
Step-by-step explanation:
Answer:
y 1 X (a)y=X2—1 y —l 0 l x <b>y= |x2—1| FIGURE |0 x (input) f(g(x)) (output) FIG ... FROM OLD FUNCTIONS 4| I] EXAMPLE 5 Sketch the graph of the function y = |x2 ... a manner similar to the way we add, subtract, multiply, and divide real numbers. ... but we can't divide by O and so the domain of fly is {x E A O B| g(x) 75 O}.
Step-by-step explanation:
If f(x) = x2 - 2x, find:
f(6) = [?]
Answer:
f(6) = 24
Step-by-step explanation:
f(x) = x^2 - 2x
Let x = 6
f(6) = 6^2 - 2(6)
= 36 - 12
= 24
[tex]\text{Plug in 6 to x:}\\\\f(6) = (6)^2-2(6)\\\\\text{Solve:}\\\\f(6) = (6)^2-2(6)\\\\f(6) = 36-2(6)\\\\f(6) = 36-12\\\\\boxed{f(6)=24}[/tex]
How many solutions does the following system of equations have?
2y= 5x+4
y= 3x+2
Α. Two
B. One
C. Zero
D. Infinitely many
Answer:
B. One
Step-by-step explanation:
The lines have different slopes, so they must intersect at exactly one point.
There is One solution to this system.
_____
If you solve the first equation for y, you get ...
y = (5/2)x +2
This has a different slope (x-coefficient) than the second equation does, but it has the same y-intercept. That y-intercept is the point of intersection of the lines, hence the solution: (x, y) = (0, 2).
Encouraged by his investment, Joseph decides to open another CD account. This time, he deposits $1,000 and plans to leave it
untouched for 3 years. In exchange, the bank will pay him 0.3% interest every month. How much will be in the account when the 3
years have passed?
Answer:
Joseph will have 1,108$ in his bank account when he opens it again.
First, we need to know how much 0.3% of 1000$ is, which is 3$.
Next, since there are 12 months in a year we multiply 3$ by 12 which is 36.
Then, since 3 years have passed we multiply 36$ by 3 which is 108$. So in conclusion, he'll have 1,108$ when he checks his account again.
Answer:
$1,113.87
Step-by-step explanation:
The initial value is 1,000, the rate of increase is 1.003, and the number of times it will increase is 36. y=1000 ( 1.003 ) 36 =1,113.87y equals 1000 left parenthesis 1.003 right parenthesis superscript 36 baseline equals 1113.87.
The system of equations
(xy)/(x+y)=1, (xz)/(x+z)=2, (yz)/(y+z)=3 has exactly one solution. What is $z$ in this solution?
Answer:
z = -12
Step-by-step explanation:
Rewritting the equations, we have:
x + y = xy (eq1)
2x + 2z = xz (eq2)
3y + 3z = yz (eq3)
From the first equation:
x = y/(y-1) (eq4)
From the third equation:
y = 3z/(z - 3) (eq5)
Using the value of y from (eq5) in (eq4), we have:
x = [3z/(z - 3)] / [3z/(z - 3) - 1]
x = [3z/(z - 3)] / [(3z - z + 3)/(z - 3)]
x = 3z / (2z + 3) (eq6)
Using the value of x from (eq6) in (eq2), we have:
6z / (2z + 3) + 2z = (3z / (2z + 3))*z
(6z + 4z^2 + 6z) / (2z + 3) = 3z^2 / (2z + 3)
12z + 4z^2 = 3z^2
z^2 = -12z
z = -12
I WILL MAKE BRAINLIEST AND 30pts. FAST AND HELP ME
Answer:
3rd,5th,6th
Step-by-step explanation:
complementary angles has 90 degree angles and 5x+40 = 5x10+40 = 50+40 = 90 and adjacent angles are angles that add up to a complementary or supplementary angle and do not overlap.
Hope this helps!
Answer:
Step-by-step explanation:
3rd option
x=10
angle ABD + angle DBC = 90
ie 5x + 40= 90
5x=90-40
5x=50
x=10
5th option
both are complementary angles
as they are sum is 90 degree
hope this helps you and dont forget to make me as the brainliest......
If $3,000 is deposited at the end of every six months into an account that earns 10% semiannually, find the amount after 10 years.
Answer:
7959.83
Step-by-step explanation:
A = P ( 1+r/n)^ nt
Where A is the amount in the account
P is the principal
r is the rate
n is the number of compoundings per year
t is the years
A =3000 ( 1+.10/2)^ 2*10
A =3000 ( 1+.05)^ 20
=7959.83
Answer:
$66,000
Step-by-step explanation:
if they earn 6,000 every year and another $600 through interest, add 6,000 + 600 = 6,600 x 10 = $66,000.
Amanda is running a mile in gym class. She runs at a pace of 5 minutes per mile. What's the dependent variable in the situation?
Calculate the sum of the first 50 terms in the sequence.
18, 21, 24, 27, ...
Answer:
hope this is correct
The sum of the first 50 terms in the sequence 18, 21, 24, 27, ... is 4575.
What is the sum of the sequence?The sum of the sequence can be calculated by the formula
[tex]S_n = n/2(2a +(n-1)d)[/tex]
where a is the first term, d is the common difference
To find the sum of the first 50 terms in the sequences: 18, 21, 24, 27, ...
[tex]S_n = n/2(2a +(n-1)d)[/tex]
here, a = 18
d = 21 - 18 = 3
n = 50
[tex]S_{50} = 50/2(2(18) +(50-1)3)\\S_{50} = 25(36+147)\\S_{50} = 4575[/tex]
Thus, the sum of the first 50 terms in the sequence is 4575.
Learn more about sequence ;
https://brainly.com/question/21961097
Overestimate the grocery bill with items that cost: $8.56, $5.34, $34.25, and $6.80.
A. $55.00
B. $57.00
Answer:
B. $57.00
Step-by-step explanation:
The totals add up to just under $55.00, so an overestimate would be $57.00
In circle o, diameter ADB and chord AC are drawn. Find the measure of arc BC. Please help
Answer:
Arc BC is 64°
Step-by-step explanation:
The parameters given are;
∠CAB = 32°
We note that the measure of arc BC = ∠CDB
∠DCA = ∠CAB = 32° (Base angles of an isosceles triangle)
∠ACB = 90° (Angle subtended at the center = Twice angle subtended at the circumference)
∠ACB = ∠DCB + ∠DCA
∴ ∠DCB = ∠ACB - ∠DCA = 90° - 32° = 58°
∠DBC = ∠DCB = 58° (Base angles of an isosceles triangle)
∴ ∠CDB + ∠DBC + ∠DCB = 180° (Sum of interior angles of a triangle)
∠CDB = 180° - (∠DBC + ∠DCB) = 180° - (58° + 58°) = 64°
∠CDB = Arc BC = 64°
What is the volume of the following rectangular prism?
units
3 1/3 units
12/5 units
Rajesh is working out the area of a circle with radius 10.
he writes:
area = 3.142 x 20
explain why Rajesh's workings are wrong?
Answer:
Rajesh applied the wrong formula
Step-by-step explanation:
The problem is on mensuration of flat shapes, circles.Rajesh applied the wrong formula for the calculation of the area of a circle
he used [tex]area= \pi d[/tex]
Rajesh is expected to solve for the area of a circle using the right formula, which is
[tex]area= \frac{ \pi d^{2}}{4} \\or\\area= \pi r^{2}[/tex]
substituting our data we have
[tex]area= 3.142*10^{2} \\area= 3.142*100\\area= 314.2[/tex]