Answer:
x = -3
Step-by-step explanation:
3(x+15) = 2(3x+12)
3x+15 = 6x+24
-6x+3x = 24-15
-3x = 9
x = -3
your welcome
What is the mean of the values: 10, 20, 35, 35, 35, 40, 45, 45, 50, 60
Answer:
the mean is 37.5
Step-by-step explanation:
you get this by adding all the values and then dividing by how many values there are.
The mean of the given values will be equal to 37.5.
The numbers given are 10, 20, 35, 35, 35, 40, 45, 45, 50 and 60
We have to find out the mean of the given numbers.
What is mean ?
The mean is equal to the sum of given numbers divided by the total number of numbers.
As per the question ,
Numbers given are ; 10, 20, 35, 35, 35, 40, 45, 45, 50 and 60
The sum of all above numbers is ;
= 10 + 20 + 35 + 35 + 35 + 40 + 45 + 45 + 50 + 60
= 375
and
Total number of numbers = 10
So , the mean will be ;
Mean = sum of all numbers / total number of numbers
⇒ Mean = [tex]\frac{375}{10}[/tex]
⇒ Mean = 37.5
Thus , the mean of the given values will be equal to 37.5.
To learn more about mean of values click here ;
https://brainly.com/question/256619
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how many solutions are there to this equation? 7x-3(x-1)=(2x+3)
Answer:
x = 0
Step-by-step explanation:
7x-3(x-1)=(2x+3)
7x - 3x + 3 = 2x + 3
4x + 3 = 2x + 3
2x = 0
x = 0
Find the value of each expression. Then, complete the inequality statement.
Answer:
<
Step-by-step explanation:
If you add negitives you get a negitive and a plus a positive you get positive positives are bigger than negitives
Can someone find (x) I will crown u as a brainliest masteR
======================================================
Explanation:
In any quadrilateral, the four angles always add to 360
P+Q+R+S = 360
x+5x+x+5x = 360
12x = 360
x = 360/12
x = 30
This means
P = R = x = 30
Q = S = 5x = 5*30 = 150
So, P+Q+R+S = 30+150+30+150 = 360 which helps confirm the answer.
Answer:
x = 30
Step-by-step explanation:
the sum of all angles is 360
the picture shows that the sum equals 12x
12x=360
x= 360/12
x = 30
please helpppppppppp
Answer:
B she left out a zero between the 2 and the 5
Answer:
b) She left a zero in between two and five.
The number given is 12050000, the underlined number is the number she missed while converting it into Scientific notation.
If my answer helped, kindly mark me as the brainliest!!
Thank You!!
When converting measurements in the metric system, you can move the decimal point to the left or to the right. Why? Select all that apply.
When converting from smaller to larger units, you are dividing by a power of 10.
Moving a decimal point is the same as adding or subtracting.
The metric system is based on powers of 10.
When converting from larger to smaller units, you are multiplying by a power of 10.
Answer:
A,C,D
If it is wrong so sorry.
Answer A,C,D
Step-by-step explanation:
How do you write an equation of a line that passes through points (6,5) & (-6,-4)
Answer:
y = 3/4x + 1/2
Step-by-step explanation:
We can use the formula [ y2-y1/x2-x1 ] to solve for the slope.
-4-5/-6-6
-9/-12
9/12
3/4
Find the y-intercept.
y = 3/4x + b
5 = 3/4(6) + b
5 = 4.5 + b
0.5 = b
y = 3/4x + 1/2
Best of Luck!
First of all, Let's find the slope because we need it on the formula for finding the y-intercept.
m = y2 - y1 / x2 - x1From the points given in the question,
x1 = 6x2 = -6y1 = 5y2 = -4Plugging in the above formula,
➝ m = -4 - 5 / -6 - 6
➝ m = -9 / -12
➝ m = 3/4
Now finding the y-intercept[tex]:[/tex]
➝ y = mx + b
And if we put in the values from our first point (6, 5) we get
➝ 5 = 3/4 (6) + b
➝ 5 = 9/2 + b
➝ b = 5 - 9/2
➝ b = 1/2
Required equation of the line:
➝ y = 3/4x + 1/2
Carry On Learning !
HELP!! HELPPP!!!I WILL MARK BRAINLIEST!!! Franco is making a fruit salad. The ratio of cups of strawberries to cups of bananas is 2 to 4. How many cups of bananas will he need to make 48 cups of fruit salad? Explain how you got your answer
Answer:
you will need 12 cups of bananas and 24 cups of straberries
Step-by-step explanation:
What’s the answer????
please help its for a lot of points and need it done fast
Answer:
1. x=2
2. x= -4
3. x= -7
4. x = -4
Step-by-step explanation:
hope this helps :)
Answer:
the first one is x=2 the second one is x=-4 the third one is x= -7the fourth one is x=4
Step-by-step explanation:
If p = -6, what does -10(P + 4) equal?
Answer:
20
Step-by-step explanation:
-10(p+4)
-10(-6+4)
60-40
20
Solve for x.
x + 5 > 4
Answer:
x > -1
Step-by-step explanation:
Isolate the variable, x. Treat the > sign like an equal sign, what you do to one side, you do to the other.
Subtract 5 from both sides:
x + 5 (-5) > 4 (-5)
x > 4 - 5
x > -1
x > -1 is your answer.
~
Answer:
x > -1
Step-by-step explanation:
Step 1: Write inequality
x + 5 > 4
Step 2: Solve for x
Subtract 5 on both sides: x > -1Here we see that any value x that is greater than -1 will work.
....................
Answer:
C: is correct answer
------------------------------
[tex]3 \times {10}^{5} [/tex]
Answer:
C.is the correct answer
a cellphone is orginally priced at 120$ the store owner gives a discount now its at 90$ find the percentage discount
Answer:
40 percent
Step-by-step explanation:
60 plus 60 is 120 and take 20 from 60 and get 40 so 40 times 3 equals 123 so 40 percent
What are the coordinates of A?
A. (3, 4)
B. (0, 3)
C. (–1, 0)
D. (3, –2)
Step-by-step explanation:
option A(3,4) is the answer to the question
pls mark as brainliest
Is -9.2222 a irrational number? Or rational? Im so confused
Answer:
rational
Step-by-step explanation:
Any number that can be written with a finite number of digits is rational. The given number is rational. (It has 5 digits.)
__
Any repeating decimal is rational.
If this were -9.2222..., it would be -9 2/9 = -83/9, also a rational number.
_____
A number is irrational if it cannot be represented exactly as a decimal or repeating decimal. That is, its decimal fraction part continues forever without repeating.
Sal made 6 ft of sausage links on Friday morning. He used 3 ft for dinner service on Friday night. On Saturday morning, he made another 6 ft of sausage links and used 9 ft for dinner service Saturday night. What is the net change in the amount of sausage Sal had from Friday morning until after dinner service Saturday night? A. 1 ft B. -1 ft C. 2 ft D. 0 ft
Answer:
-6 ... even though it is not one of the options would be the correct answer.
Step-by-step explanation:
In order to solve this problem we can take it one step at a time. Sal started Friday morning with 6ft of sausage
6ft
He used 3ft for dinner on Friday night which means he subtracted 3ft.
6ft - 3ft = 3ft
He made another 6ft Saturday morning which means he added to his existing sausage link.
3ft + 6ft = 9ft
Finally, he used 9ft for dinner Saturday Night which means he subtracted 9ft.
9ft - 9ft = 0ft
Therefore, the net change would be -6 since Sal started with 6ft and ended with 0ft during this time.
i know the fact that I'm stupid but please help
Answer:
Perpendicular lines have opposite reciprocal slopes, so the slope of the line is -.5
Now, y=.5x+b, so you plug in the point -2,6.
6=.5(-2)+b
6=-1+b, so b=7.
The equation is y= .5x+7
Help Please I will give brainest
Answer:
-11
Step-by-step explanation:
i got the wrong numbers
Consider the function
f(x) = 8x^3 +1.
If f(g(x)) = x and g(f(x)) = x , find g(x) ?
[tex]g( \: f(x) \: ) = x[/tex]
And
[tex]f( \: g(x) \: ) = x[/tex]_________________________________
So :
[tex]g(x) = {f}^{ - 1}(x) [/tex]
And
[tex]f(x) = {g}^{ - 1}(x) [/tex]
_________________________________
So to find g(x) , we must find the inverse of f(x) .
Let's do it .....
[tex]f(x) = 8 {x}^{3} + 1 [/tex]
[tex]y = 8 {x}^{3} + 1 [/tex]
Subtract the sides of the equation minus 1
[tex]y - 1 = 8 {x}^{3} [/tex]
Divided the sides of the equation by 8
[tex] \frac{y - 1}{8} = {x}^{3} \\ [/tex]
From the sides of the equation, we take the radical with interval 3
[tex] \sqrt[3]{ \frac{y - 1}{8} } = x \\ [/tex]
[tex] \sqrt[3]{ \frac{1}{8}(y - 1) } = x \\ [/tex]
[tex] \frac{1}{2} \sqrt[3]{y - 1} = x \\ [/tex]
[tex] \frac{ \sqrt[3]{y - 1} }{2} = x \\ [/tex]
So ;
[tex] {f}^{ - 1}(x) = \frac{ \sqrt[3]{x - 1} }{2} \\ [/tex]
Now we find g(x) which is :
[tex]g(x) = \frac{ \sqrt[3]{x - 1} }{2} \\ [/tex]
_________________________________
And we're done.
Thanks for watching buddy good luck.
♥️♥️♥️♥️♥️
If f(g(x)) = x and g(f(x)) = x , than [tex]\rm g(x) = \sqrt[3]{\dfrac{x-1}{8}}[/tex] and this can be calculated by finding the inverse of the given function f(x).
Given :
[tex]\rm f(x) = 8x^3+1[/tex]f(g(x)) = x and g(f(x)) = xGiven that f(g(x)) = x it means that:
[tex]\rm g(x) = f^{-1}(x)[/tex]
It is also given that g(f(x)) = x that means:
[tex]\rm f(x) = g^{-1}(x)[/tex]
Now, the inverse of f(x) is given by the following calculation:
[tex]\rm f(x) = 8x^3+1[/tex]
Now, replace f(x) with y in the above equation.
[tex]y = 8x^3+1[/tex]
Now, replace y with x and x with y and evaluate 'y'.
[tex]x = 8y^3 +1[/tex]
[tex]\sqrt[3]{\dfrac{x-1}{8}}=y[/tex]
Now, replace y with [tex]\rm f^{-1}(x)[/tex] in the above equation.
[tex]\rm f^{-1}(x) = \sqrt[3]{\dfrac{x-1}{8}}[/tex]
[tex]\rm f^{-1}(x) = \sqrt[3]{\dfrac{x-1}{8}} = g(x)[/tex]
For more information, refer to the link given below:
https://brainly.com/question/13715269
If 20 shirts cost $100, how many shirts can i buy for $300 ?*
Answer:
60
Step-by-step explanation:
Solve for x.
3(2x - 4) = 6
Answer:
X=3
Step-by-step explanation:
You'd use the distributive property and multiply everything in the parentheses by 3.
So you'd end up with 6x-12= 6
then add 12 to both sides so you now have 6x= 18
from here you divide 6x from 18 and that equals 3
please help with the first question.
angle help!
yw good luck
i did the three questions then i put some math notes in the bottom right corner
Cos(100)-cos(99)=?
Can you do it step by step
Let's see what to do buddy...
________________________________
If 99 & 100 are in Degree
_________________________________
STEP (1)
The angles 99 and 100 are in the second quarter of the trigonometric circle.
The cosine is negative in the second quarter.
To make things easier, we can use angle conversion.
Look :
[tex]we \: know \: that \: 100 = 90 + 10[/tex]
[tex]also \: we \: know \: 99 = 90 + 9[/tex]
So :
[tex] \cos(100) = \cos(90 + 10) = \cos( \frac{\pi}{2} + 10 ) \\ [/tex]
[tex] \cos(99) = \cos(90 + 9) = \cos( \frac{\pi}{2} + 9 ) \\ [/tex]
_________________________________
STEP (2)
Well now we have to do the arc deletion.
To remove the arc, we remove π/2 from the arc.
Remember that every time we remove π/2 from the arc, the trigonometric ratio changes.
That is, if it is a sine, it becomes a cosine, and if it is a cosine, it becomes a sine.
Or if it is a tangent, it becomes a cotangent, and if it is a cotangent, it becomes a tangent.
[tex]in \: second \: quarter \: cosine \: is \: negative \\ \\ \cos( \frac{\pi}{2} + 10 ) = - \sin(10) = - 0.173 [/tex]
[tex] \cos( \frac{\pi}{2} + 9 ) = - \sin(9) = - 0.156 \\ [/tex]
_________________________________
STEP (3)
[tex] \cos(100) - \cos(99) = \\ - \sin(10) - ( - \sin(9) \: ) = \\ - 0.173 - ( - 0.156) = \\ - 0.173 + 0.156 = - 0.017 [/tex]
And we're done here.
_________________________________
If 99 & 100 are in Radian
_________________________________
STEP (1)
First we need to know how many degrees 1 radian is.
The following equation is used to convert degrees to radians or radians to degrees.
[tex] \frac{degree}{180} = \frac{radian}{\pi} \\ [/tex]
So we have :
[tex] \frac{d}{180} = \frac{1}{\pi} \\ [/tex]
Multiply the sides of the equation by 180 :
[tex]d = \frac{180}{\pi} = \frac{180}{3.14} = 57.32 \\ [/tex]
So 1 radian is approximately equal to 57 degrees.
And we have :
[tex]100 \: rad \: = 100 \times 57 = 5700 \: deg \\ \\ 99 \: rad \: = 99 \times 57 = 5601 \: deg[/tex]
_________________________________
STEP (2)
Let's move on to deletion.
Look : 5700° = 15 × 360° + 300°
and : 5601° = 15 × 360° + 201°
We know π rad = 3.14 × 57 = 180° deg
So 2π rad = 2 × 180 = 360 ° deg
Then :5700 = 15 × 2 π + 300° = 30 π + 300°
and :5601 = 15 × 2 π + 201° = 30 π + 201°
Remember that deleting 2π is unconditional.
[tex] \cos(30\pi + 300) = \cos(300) = \cos(360 - 60) = \cos(2\pi - 60) = \cos( - 60) = \\ cosine \: eat \: negative \\ \cos( - 60) = \cos(60) = \frac{1}{2} [/tex]
[tex] \cos(30\pi + 201) = \cos(201) = \\ \cos(180 + 21) = \cos(\pi + 21) = \\ - \cos(21) = - 0.933 [/tex]
[tex] \frac{1}{2} - ( - 0.933) = 0.500 + 0.933 = 1.433[/tex]
And we're done.
Thanks for watching buddy good luck.
♥️♥️♥️♥️♥️
2x + 3 + x2; for x = 4
Answer:
27
Step-by-step explanation:
substitute the given value of x: 2(4) + 3 + (4)^2
simplify: 8 + 3 + 16
add: 8 + 3 + 16 = 27
b. 25 x 13 =
twenty-fives
Answer:
25 x 13 = 325
Step-by-step explanation:
Please please please help me with this geometry question!
(See image up top for question and answer choices)
Thank you!!!!!
The answer is:
A
60 degrees
State all interger values of x in the interval [-3,3] that satisfy the following inequality: -3x4 is greater than it equal to 9
Answer:
x = - 2, - 3
Step-by-step explanation:
Given
- 3x + 4 ≥ 9 ( subtract 4 from both sides )
- 3x ≥ 5
Divide both sides by - 3, reversing the symbol as a result of dividing by a negative quantity.
x ≤ - [tex]\frac{5}{3}[/tex]
The only values of x that satisfy the inequality in the interval { - 3, 3 } are
x = - 2, x = - 3
Describe how to solve -5x = 30.
Answer:
x = -6
Step-by-step explanation:
-5x = 30
Divide each side by -5
-5x/-5 = 30/-5
x = -6
PLEASE HELP I NEED TO PASS MATH AND I DON’T UNDERSTAND
Answer:
Equation: [tex]x=9[/tex]
Step-by-step explanation:
First graph the points on the coordinate plane, then find the x and y intersections and the slope. Since the slope is 0, and the x intersection is 9, you get [tex]x=9[/tex].