Answer:
x^2 - 4 = 0
x^2 = 4
x^2 = +- 2
x = -2 x=2
Writing Equations
1. Two added to three times a number m is the same as 18.
Answer:
I believe the answer would be 3m+2=18
Don't forget to click the heart
Step-by-step explanation:
The equation 3m + 2 = 18 represents the two added to three times a number m is the same as 18.
What is an expression?It is defined as the combination of constants and variables with mathematical operators.
It is given that:
The equation in word form is:
Two added to three times a number m is the same as 18.
Here m is the number.
Three times the number m = 3m
The addition of the numbers 3m and 2 = 3m + 2
The quantity 3m + 2 is equal to 18
The equation becomes:
3m + 2 = 18
The above equation represents the two added to three times a number m is the same as 18.
If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.
Thus, the equation 3m + 2 = 18 represents the two added to three times a number m is the same as 18.
Learn more about the expression here:
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Caculate the unit rate. Paying $20.92 for 4
cheeseburgers. What is the cost per burger?
Answer:
$5.23 per burger
Step-by-step explanation:
You need to divide $20.92/4=5.23
Answer:
5,23
Step-by-step explanation:
$20.92 divided by 4 = 5,23
because the total cost divided by how many you bought equals to the price ever each one IF they were of equal cost.
In this case they most likely were.
Consider x >5 and 2.x > 2.5. Identify a solution to the first
inequality. Show that this solution also makes the second
inequality true.
answer=
step by step:
2 x 6 =12
6 > 5
The equation shows the relationship between x and y: y = -4x + 9 What is the slope of the equation? (5 points)
Answer:
the answer is m= -4
Step-by-step explanation:
hope this helps!! have a nice day!!
Answer if only your 100 certain plz and thank you
Answer:
its 7 <2a
Step-by-step explanation:
hope you get it right :)
For the triangle ABC determine if the following statement is true or false
Answer:
i think the answer is true.
Step-by-step explanation:
Answer:
Its true
Step-by-step explanation:
A company needs to take 330 sample sensor readings. If the sensor collects data at 5
samples per second, how long will it take the company to take all 330 samples?
Answer:
1 minute and 6 seconds or 66 seconds
Step-by-step explanation:
Hope it helps :)
Brainliest pls?
Have a good day/night
Answer:
66
Step-by-step explanation:
The company wants to know how long it will take to get all the samples. So If the sensor collects data at 5, Then you will need to divide 330 by 5. Make any sense
A real estate agent sold a house for $315,000 last week. If her commission is 3.25% of the selling price of the home, find the amount of her commission?
Answer:
Total commission= $10,237.5
Step-by-step explanation:
Giving the following information:
A real estate agent sold a house for $315,000 last week.
Commission= 3.25%
To calculate the value of the commission, we need to use the following formula:
Total commission= house value*commission percentage
Total commission= 315,000*0.0325
Total commission= $10,237.5
You deposit $350 into a savings account which pays a simple interest rate of 2.5% per year. you make no withdrawals what amount will be in the account after 3 years
Answer:
376.25
Hope this helped ;)
A road rises 1 m for every 15 m measured along the road. a) What is the angle of inclination of the road to the nearest degree? b) How far does the car travel horizontally when it travels 15 m along the road ? Give the answer to the nearest tenth of a metre.
Answer:
The answer is below
Step-by-step explanation:
The road increases by a height of 1 m for every 15 m distance. The slope of a line is the ratio of its rise to run. The slope (m) is the tangent of the inclination. Hence:
Slope = rise / run = tanθ
Where θ is the angle of inclination.
a) Given rise = 1 m, run = 15 m
Slope of road (m) = rise / run
m = 1 m/ 15 m
m = 0.0667
slope = tanθ
tanθ = 0.0667
θ = tan⁻¹(0.0667)
θ = 3.81
θ ≈ 4°
b) cosθ = horizontal distance / 15 m
horizontal distance = 15 m × cos 4
Horizontal distance = 14.96
Horizontal distance = 15 m to nearest tenth
This is due at 11:20
Interest: Zoe has $3000 to put into a savings account. The account earns an annual interest rate of 3%. Fill in the following table: Number of years in account Amount in account ($) 0 3000 1 2 3 4 How much will Zoe have in the account after 7 years? How long will it take for the money to grow to $4000?
Step-by-step explanation:
$3000.00 +3%= $3,090
annual is once a year So $90.00 in interest per year
$90×7=$630 for 7 years of interest
Multiply (-4r^3)(-5r^3) =
Answer:
20r^6
Step-by-step explanation:
I'm not sure
Answer:
20 r ^6
Step-by-step explanation:
-4*-5=20
3+3=6
The product of powers rule states that when multiplying two powers with the same base, just add the exponents.
solve the system by Substitution 4x+4y=-4 y=-7x-7
Answer: {-1, 0}
Explanation: Since y = -7x - 7, we can replace the y in our first equation with
a -7x - 7 and our first equation now reads 4x + 4(-7x - 7) = -4.
To solve this equation, first distribute the 4 through the parenthses.
So we have 4x - 28x - 28 = -4.
Now simplify the left side to get -24x - 28 = -4.
Adding 28 to both sides, we have -24x = 24.
Dividing both sides by -24, we find that x = -1.
To find y, plug a -1 back into either equation.
So we have y = -7(-1) - 7 or y = 0.
Our final answer is {-1, 0}.
Answer:
x= -1,
y=0
Step-by-step explanation:
[tex]\begin{bmatrix}4x+4y=-4\\ y=-7x-7\end{bmatrix}\\\\\mathrm{Subsititute\:}y=-7x-7\\\\\begin{bmatrix}4x+4\left(-7x-7\right)=-4\end{bmatrix}\\\\Simplify\\\\\begin{bmatrix}-24x-28=-4\end{bmatrix}\\\\Isolate\:x \:for \:-24x-28=-4\:\::x =-1\\\\\mathrm{For\:}y=-7x-7\\\\\mathrm{Subsititute\:}x=-1\\\\y=-7\left(-1\right)-7\\\\-7\left(-1\right)-7 =0\\\\y=0\\\\\mathrm{The\:solutions\:to\:the\:system\:of\:equations\:are:}\\x=-1,\:y=0[/tex]
You and a group of friends participate in a game where you must use clues to escape from a room. You have a limited amount of time to escape and are allowed 3 free clues. Additional clues may be requested, but each removes 5 minutes from your remaining time. What integer represents the total change in the time when you use 5 clues?
Answer:
The integer that represent the total change in time when 5 clues are used is 10
Step-by-step explanation:
The given parameters are;
The number of free clues available = 3
The number of minutes removed for an additional clue = 5 minutes
Therefore, the total change in time when 5 clues are used is given as follows;
The number of free clues available 3
The number of clues for which 5 minutes is removed from the remaining time when 5 clues are selected = 5 - 3 = 2 clues
Therefore, the total change in time = The number additional clues × 5 minutes/clue
The total change in time = 2 clues × 5 minutes/clue = 10 minutes
The total change in time = 10 minutes
Therefore, the integer that represent the total change in time (in minutes) when 5 clues are used = 10.
Answer:
-10
Step-by-step explanation:
Heeeeeeeeelp plssssd
Answer:
B
Step-by-step explanation:
When the Variable and the number are together that is multiplying. So when you adding them the answer would be A sum of 2 products
Answer:
B
Step-by-step explanation:
Because 5e stands for 5 times e and 2f stands for 2 times f, they are both products.
They are being added together which means it is a sum.
I need help,look at the picture below:
Answer:
Measure of angle H is 110°.
Step-by-step explanation:
m∠G = (2x + 5)°
m∠H = (6x - 10)°
m∠I = (x + 10)°
Since, sum of interior angles of a triangle is 180°.
m∠G + m∠H + m∠I = 180°
(2x + 5) + (6x - 10) + (x + 5) = 180
(2x + 6x + x) + (5 - 10 + 5) = 180
9x = 180
x = 20
Therefore, m∠H = (6x - 10)°
= 6(20) - 10
= 110°
Therefore, measure of angle H is 110°.
Amy loaned $5 to each of 20 people. She recorded each loan by writing −5 in her bank book.
What is the total change in the amount of money Amy had before the loans?
Answer:
$100
Step-by-step explanation:
5 x 2 = 100
or
-5 x 20 = -100
Answer:
-100
Step-by-step explanation:
please help need all questions answered i’ll give brain and good rating
Answer:
A) Domain:(-♾, ♾) negative infinity to positive infinity
B) Vertex: (0,4), the vertex represents the minimum of this graph
C) No real zeros because the parabola doesn’t cross the x-axis
please help. are they Parallel, perpendicular or neither?
Answer:
The are Parallel
Step-by-step explanation:
As you can see the points, they are going straight which mean they will not intersect (Parallel)
Answer:
parallel
Step-by-step explanation:
yeah i think so
At a local store you can buy 4 bottles of fruit juice for $10 what is the cost of 10 bottles of fruit juice
Answer:
$25
Step-by-step explanation:
$10÷4=$2.50
$2.50×10=$25.00
what is the sum of the two numbers 2+9
Answer:
11
Step-by-step explanation:
Answer:
11
Step-by-step explanation:
2+9=11
can i get brainliest lol?
Xavier Cantor works on an 8 hour day. He is paid $13.69 an hour for regular-time work and time-and-a-half for any hours over 8 hours a day. Xavier worked these hours last week: Monday 9 3/4, Tuesday 8, Wednesday 6, Thursday 8 1/2, Friday 8. Complete all five stages to find Xavier's gross wages for last week. *
Answer:
Step-by-step explanation:
Xavier is paid $13.69 for 8 hours and 1.5times this amount on the hours above 8 which will be $20.475
Monday Tuesday Wednesday Thursday Friday
[tex]8hr[/tex] +[tex]1\frac{3}{4} hr[/tex] [tex]8hr[/tex] [tex]6hr[/tex] [tex]8hr + 1/2hr[/tex] [tex]8hr[/tex]
$145.35 $109.52 $82.14 $119.76 $109.52
total= $566.29
What is the area of the triangle?
Answer:
14cm^2
Step-by-step explanation:
use A=1/2(b)(h)
A=1/2(7)(4)
A=1/2(28)
A=14cm^2
Answer/Step-by-step explanation:
7 x 4 = 28 divided by 2 = 14.
Make sure to find the square root of the answer or it will be a square and not a triangle.
Y= 5x + 100 solve for x and add the steps please I need help
Answer:
x = -20
Step-by-step explanation:
y=5x + 100
0 = 5x=100 move the variable to the left
-5x=100
-5x/-5 =100/ -5 now divide both sides by -5
x = -20
Which fraction is equal to 12%?
Answer: 12/100 or 6/50
Step-by-step explanation:
The girls’ soccer team scored 60 points in 10 games. If this trend were to continue, what would be the points scored in 15 games?
Answer:
90 points
Step-by-step explanation
John has $80. Every week, he spends $7.Create an equation that represents How much money, m, in dollars, will he have after the fourth week? Enter the equation and the answer on separate lines. (Will give brainliest)
Answer:
7x+80
Step-by-step explanation:
x represents the number of weeks
Here are some line segements. Which segment is a dilation of segement BC using A as the center of dilation and a scale factor of 2/3?
Answer:45
Step-by-step explanation:!!
is x+5=x-3 one solution, infinite, or no solution
Answer:
No solution
Step-by-step explanation:
Hope this helps
