Answer:
the answer should be x= -7 hope this helps!
draw a line representing the "rise" and a line representing the "run" of the line. state the slope of the line in the simplest form.
Answer:
-2x
Step-by-step explanation:
Rise over run,
This line goes up 4 (It goes up so it's positive).
and it goes to the left -2 times (Since it's left it's negative).
Slope: 4/-2 or -2/1 which is -2x
Write a system of equations to describe the situation below, solve using any method, and Fill in the blanks.
Natalie is a salon owner. Yesterday, she did 3 haircuts and colored the hair of 1 client,
charging a total of $239. Today, she did 2 haircuts and colored the hair of 1 client, charging a
total of $192. How much does Natalie charge for her services?
Natalie charges $___
for a haircut and $__
for a coloring
Answer:
1 haircut = 47 dollars
1 colouring = 98 dollars
Step-by-step explanation:
Let [tex]x[/tex] be equal to the cost of 1 haircut.
Let [tex]y[/tex] be equal to the cost of 1 colouring treatment.
1) Form equations
Equation 1: 3 haircuts + 1 colour = 239 dollars
⇒ [tex]3x+y=239[/tex]
Equation 2: 2 haircuts + 1 colour = 192 dollars
⇒ [tex]2x+y=192[/tex]
2) Solve the system of equations
Subtract equation 2 from equation 1 to cancel out y (elimination)
- [tex]3x+y=239\\2x+y=192[/tex]
⇒ [tex]3x-2x+y-y=239-192\\x=47[/tex]
Therefore, Natalie charges 47 dollars for 1 haircut.
Plug x back into one of the equations to solve for y
[tex]2(47)+y=192\\94+y=192[/tex]
Subtract both sides by 94
[tex]94+y-94=192-94\\y=98[/tex]
Therefore, Natalie charges 98 dollars for 1 colouring treatment.
I hope this helps!
What is the value of the expression as a Fraction
Solve this quadratic equation
Answer:
https://www.symbolab.com/solver/step-by-step/x%5E%7B2%7D%20%2B5x%2B3%3D0
Step-by-step explanation:
Answer:
[tex]x = \frac{-5\pm\sqrt{13}}{2}[/tex]
Step-by-step explanation:
Hello!
We can solve the quadratic by using the Quadratic Formula.
Standard form of a Quadratic: [tex]ax^2 + bx +c= 0[/tex]
Quadratic Formula: [tex]x = \frac{-b\pm\sqrt{b^2 - 4ac}}{2a}[/tex]
Given our equation: [tex]x^2+5x+3 = 0[/tex]
a = 1b = 5c = 3Plug it into the formula and solve:
[tex]x = \frac{-b\pm\sqrt{b^2 - 4ac}}{2a}[/tex][tex]x = \frac{-5\pm\sqrt{5^2 - 4(1)(3)}}{2(1)}[/tex][tex]x = \frac{-5\pm\sqrt{25-12}}{2}[/tex][tex]x = \frac{-5\pm\sqrt{13}}{2}[/tex]This cannot be simplified further. The answer is [tex]x = \frac{-5\pm\sqrt{13}}{2}[/tex].
. Complete each equation with a number so that the equation has the stated solution(s). a) x^2+7=x^2+_____; no solution
Answer: other than 7
Step-by-step explanation:
Given
Equation is [tex]x^2+7=x^2+?[/tex]
For an equation to have no solution, the missing number can be any number other than 7
because if we put 7 then it justifies the equation i.e. [tex]7=7[/tex] while on the other hand for a number other than 7, it does not justify the equation.
2[32-(4-1)³] answer.
Answer:
3^5/3
log(1/2)
log2(16)
Step-by-step explanation:
u.
What is the length of the hypotenuse triangle below?
Answer:
A (25)
Step-by-step explanation:
Pythagorean Theorm
[tex]7^{2} +24^{2} =x^{2}[/tex]
Please vote brainliest!!!
Write 42/12 as a mixed number.
Give your answer in its simplest form
Answer:
3 1/2
Step-by-step explanation:
Hope this helped :)
Justin has scored 27, 20, and 26 points in his three basketball games so far. How many points does he need to score in his next game so that his average (mean) is 25 points per game? points
Answer:
27
Step-by-step explanation:
The answer is 27, since the mean of 20, 26, 27, 27 is 27. I hope you enjoy. Take care
what is the surface area?
Answer:
264
Step-by-step explanation:
Area= 1/2•b•h
=2(1/2)(b)(h)+3(b)(h)
=2(1/2)(6)(4)+3(16)(5)
=264
(x+ 7)(x -8) = 0 then
___ OR ___
OR Solving: x = x =
NOT MULTIPLE CHOICE
Answer:
if this is factoring i wanna say
x= -7
x= 8
but i could be wrong this is a trick 1
Step-by-step explanation:
Solve the system of equations.
x+2y=0
6y= - 3x
Answer:
Infinitely Many Solutions.
Step-by-step explanation:
x+2y=0
6y=-3x
y=-3/6x
y=-1/2x
x+2(-1/2x)=0
x-2/2x=0
x-x=0
0=0
infinitely many solutions
If a tennis ball has a diameter of 14.6, and is cut in half. What is the volume of the half of the tennis ball? Use 3.14 for pi.
the half of 14.6 is 7.3 and you times it by 3.14 and its 22.922 i think
Express 130 and 325 as the sum of two squares in two different ways.
Answer:
3^2 + 11^2 = 130
7^2 + 9^2 = 130
---
1^2 + 18^2 = 325
6^2 + 17^2 = 325
Step-by-step explanation:
We want to express 130 and 325 as the sum of two squares in two different ways.
Then, we want to find two integers a and b such that:
a^2 + b^2 = 130
There is not an analytical way to do this, we just need to try with different integers.
Let's start with 130.
So we start by defining a as a really small integer, for example 1, and try to find b.
1^2 + b^2 = 130
b^2 = 130 - 1
b^2 = √129 = 11.3
This is not an integer, so let's try with another value of a.
a = 2
2^2 + b^2 = 130
4 + b^2 = 130
b^2 = 130 - 4
b = √126 = 11.2
This can be discarded again.
Now let's try with a = 3
3^2 + b^2 = 130
9 + b^2 = 130
b^2 = 130 - 9
b = √121 = 11
Nice.
So we can express 130 as:
3^2 + 11^2 = 130
Now let's find another pair.
In the same way, we can see that for a = 7 we get:
7^2 + b^2 = 130
42 + b^2 = 130
b^2 = 130 - 49
b = √81 = 9
Then we can write:
7^2 + 9^2 = 130
Now for 325:
With the same reasoning than before, we want to find two integers such that:
a^2 + b^2 = 325
Then we start evaluating a by the smallest values:
a = 1
1^2 + b^2 = 325
b^2 = 325 - 1 = 324
b = √324 = 18
Then we can write 325 as:
1^2 + 18^2 = 325
Now to find the next pair we need to keep testing values for a, we will get for a = 6:
6^2 + b^2 = 325
36 + b^2 = 325
b^2 = 325 - 36 = 289
b = √289 = 17
Then we can write:
6^2 + 17^2 = 325.
I need help please!!!
Answer:
D
Step-by-step explanation:
A translation 4 units to the right and 6 units down means that all of the x values increase by 4 and all of the y values decrease by 6.
Adding 4 to all of the x values and subtracting 6 from all of the y values gives us the coordinates:
A' (-3, 0), B' (8, 3), C' (2, -9)
what is the formula for finding area in a triangle
Answer:
Base times Height divided by 2 or 1/2b*h
Step-by-step explanation:
Answer:
multiply the base times the height and then divide your answer by two or A=1/2bh were b=base and h=height
Step-by-step explanation:
In an ecosystem some animals get energy by eating plants an leek can eat 20 pounds of plants each day write and evaluate an expression to find how many pounds of plants a herd of 18 elk can eat in one week.
Answer:2520 pounds can be eaten by a herd of 18 elk in one week.
Step-by-step explanation:
Given: A elk an eat 20 pounds of plants in one day .
Now , Quantity of plants eaten by a herd of elk = (Quantity of plants eaten per day) x (Number of elks ) x (Number of days)
So, the quantity of plants a herd of 18 elk can eat in one week = 20 x 18 x 7 [1 week = 7 days]
= 2520 pounds
Hence, 2520 pounds can be eaten by a herd of 18 elk in one week.
Find the slope of the line graphed below.
Given:
The graph of a line.
To find:
The slope of the graphed line.
Solution:
From the given graph it is clear that the line passes through the points (-2,2) and (2,5). So, the slope of the line is:
[tex]m=\dfrac{y_2-y_1}{x_2-x_1}[/tex]
[tex]m=\dfrac{5-2}{2-(-2)}[/tex]
[tex]m=\dfrac{3}{2+2}[/tex]
[tex]m=\dfrac{3}{4}[/tex]
Therefore, the slope of the given graphed line is [tex]m=\dfrac{3}{4}[/tex].
PLEASE HELP I WILL GIVE BRAINIEST. What is the Median?
Answer:
DA MIDDLE LINE. 6
Please help if you know the answer please
LOOKS EASY !! NO FILES/LINK THX
A reindeer can fly at a speed of 40 miles an hour. How far will fly in 2 1/2 hours
Answer:
100 miles
Step-by-step explanation:
Hope this helps
PLEASE ANSWER I NEED HELP!!!
Charlotte needs 16 1/2 yards of fabric to make a quilt. She has one piece of fabric that is 3 1/2 yards and another piece of fabric that is 6 3/4 yards. How many more yards of fabric does Charlotte need to make the quilt?
YOUR ANSWER BETTER NOT HAVE A LINK OR YOU ARENT GETTING POINTS!
Answer:
6 1/4
Step-by-step explanation:
Add up the fabric that she has
3 1/2 + 6 3/4
Get a common denominator
3 2/4 + 6 3/4
9 5/4
9 4/4 + 1/4
10 1/4
Subtract this from the fabric that she needs
16 1/2 - 10 1/4
Get a common denominator
16 2/4 - 10 1/4
6 1/4
Find the length of the third side. If necessary, write in simplest radical form.
(screenshot provided)
no links please ;')
Answer:
the length of the third side (the hypotenuse) is 7
Step-by-step explanation:
Solve this by using the Pythagorean Theorem:
(2√10)² + 3² = (hypotenuse)²
Then (hypotenuse) = √(40 + 9) = √49 = 7
Answer:
7
Step-by-step explanation:
2 root 10 ^2 is 40
3 squared is 9
root of 49
The Vatican has to be guarded 24 hours a day. Fifteen Swiss Guards are ordered to split each day's guard duty equally. How long will each Swiss Guard spend on guard duty in one day? Record your answer in hours and minutes.
Answer: Each Swiss Guard will spend 1 hour 36 minutes on guard duty in one day.
Step-by-step explanation:
Given: The Vatican has to be guarded 24 hours a day.
Total Swiss Guards = 15
If they split each day's guard duty equally, the time they will spend on guard duty in one day = (24)÷ 15
= [tex]\dfrac{24}{15}[/tex] hours
[tex]=\dfrac85[/tex] hours
[tex]=1\dfrac35[/tex] hours
= [tex]\text{1 hour }\dfrac35\times60\text{ minutes}[/tex]
= [tex]\text{ 1 hour }36\text{ minutes}[/tex]
Hence, each Swiss Guard will spend 1 hour 36 minutes on guard duty in one day.
Select the correct answer.
Which equation correctly solves the Pythagorean theorem, a2 + b2 = , fc
O A. b = c -a
B. b = VC2 - 22
Ocb = V2 + a2
D.
b = c + a
Answer:
a² + b² = c²
Step-by-step explanation:
Pythagorean theorem: a² + b² = c²
PLEASE HELP ASAP
Find the surface area and the volume of the cone:
*Hint: Remember that 10 is the slant height, not the cone height. Use Pythagorean Theorem to find
height.
Answer:
surface area= 301.6
volume=301.6 again Imao I'm not sure how right that is
A rectangular ballroom is being carpeted. The room measures 30 feet by 25 feet. If the carpet costs $3.00 per square foot, then what is the cost of the carpet?
Answer:
$2250
Step-by-step explanation:
30 x 25 = 750 -> area
750 x 3= 2250
Help me with this easy math question, please. I don't understand it, but it's said to be simple. Please and thank you in advance.
Answer:
$850.50
Step-by-step explanation:
Once you find the square footage of the triangle, that being 486 sq ft, you multiply by 1.75, the cost of the deck per sq ft, you get $850.50
Vince starts with 0 then adds the number 3 times..Jen starts with 1 then multiples the number 10 three time
Answer:
Where are the numbers?
Step-by-step explanation:
????????????????????????????
Answer:
there are no numbers
Step-by-step
!!!!!!!!!!!!!!!!!!!!!!!!!!