Answer:
hmm
Step-by-step explanation:
−45(9x−20)−3x=45x−6 Enter the value of x that makes this equation true.
Answer x=2
Step-by-step explanation:
Answer: x = 2
Step-by-step explanation: - 4/5*9x +4/5*20 - 3x= 4/5x- 6
-36/5*x+16-3x-4/5*x= -6
-36/5*x-15x/5-4/5*x=-6-16
-55/5*x=-22
-11x= -22
x= -22:(-11)
Hope this helps!!
I was slightly confused so please tell me if it's wrong.
Solve the compound inequality below:
0 < 2x – 10 < 20
Answer:5<x<15
Step-by-step explanation:
Answer:
Step-by-step explanation:
0<2x-10<20
If a<u<b then a<u and u<b
0<2x-10 and 2x-10<20
0<2x-10= x>5 2x-10<20 = x<15
Combine the intervals
x>5 and x<15
Solution: 5<x<15
Interval Notation: (5,15)
Is 4.63 less than 4.14
Answer:
No, you should have learned this in 5th grade
Step-by-step explanation:
4/7 ,5/8 ,6/11 ,2/3 write in ascending order.
Answer:
6/11, 4/7, 5/8, 2/3
Step-by-step explanation:
Evaluate f(t)=-2t2+ 1 for f(-3).
Answer:
7
Step-by-step explanation:
First, plug-in f(-3) into t in the function:
[tex]f(-3)=-2(-3) +1[/tex]
Second, multiply -2 and -3 to get 6:
[tex]f(-3)=-2(-3)+1[/tex]⇒[tex]f(-3)=6+1[/tex]
Third, add 6 and 1 to get your answer:
[tex]f(-3)= 6+1[/tex]⇒[tex]f(-3)=7[/tex]
"A clock is positioned on an auditorium wall with its center 9 feet above the floor. The second hand is 10 inches long and continuously moves around the clock. Let x represent the time in seconds measured from noon on a given day. Which f(x) represents the height above the floor, in feet, of the tip of the second hand?"
Answer: f(x) = 10in*cos(x*2*pi/60s) + 10in*sin(x*2*pi/60s) + 108in.
Step-by-step explanation:
When we have a circular motion, we can write this as:
f(x) = A*sin(k*x + f) + A*cos(k*x + f) + C.
where:
k is a constant that depends on the period.
f is a phase shift.
C is the mean height of the circular motion, in this case will be equal to the height of the center, that is 9ft.
C = 9ft.
A is the amplitude of the motion, in this case is equal to the radius, that is equal to the lenght of the second hand
A = 10in
But we should write both quantities in the same units, so we have:
1ft = 12in
then:
C = 9ft = 9*12in = 108in
Then our equation is:
f(x) = 10in*cos(k*x + f) + 10in*sin(k*x + f) + 108in
now, x = 0s coincides with the noon
so at x = 0s, the second hand is pointint to the twelve, this means that is in the max height, so we have:
F(0s) = 10in*cos(0 + f) + 10in*sin(0 + f) + 108 in
Now, the maximum value will be when the value inside the sinusoidals is 0.
(because cos(0) = 1 and sin(0) = 0)
then we have that f = 0.
Now, we know that it takes 60 seconds to do a full revolution, and for the sinusodial functions the period is 2*pi
Then we have:
c*60s = 2*pi
c = 2*pi/60s.
Then the equation is:
f(x) = 10in*cos(x*2*pi/60s) + 10in*sin(x*2*pi/60s) + 108in.
Answer:
B : 5/6cos(pi/30x)+9
Step-by-step explanation:
Edge 2020
how many times larger is 8*10^4 than 8*10^1
What is the solution of the equation 18 = 2x?
Answer:
x = 9
Step-by-step explanation:
Answer:
The answer is x=9
Step-by-step explanation:
18=2x, you divide both sides by 2 and you get 18/2 which equales 9.
pls help asap!!!!!!!!!!!!!!!!
Answer:
7 seconds
Step-by-step explanation:
Since we know that the car travels 3 feet per second, we can divide 21 feet by 3 feet to find the number of seconds ( 21÷3=7)
Describe how to solve 2x + 36-4x -10 ) = 10 to a middle schooler. Show all the steps and tell
us how you can check if it is correct.
Answer:
First you would have to combine the numbers that are the same, so combine all the X's and the other numbers, with out a variable (without an X). The numbers with X are 2x and -4x, so you add them, you should have 2x (2+ (-4)= 2) your equation should look like this : 2x + 36 - 10= 10
Next you need to combine the other numbers, 36 and -10, add them, and you should get 26. Your problem should look like this 2x+26=10
Next you will need to subtract 26 from each side, what you do to one side of the equal sign you must do to the other. Your problem should look like this : 2x=-16
To find X you have to get X alone, so you have to divide how many x's there are, 2, so divide both sides by 2 (rembering that what you do to one side you must do to the other). So you should have x= -8
Step-by-step explanation:
6x+2y=-2 plus 3x-2y=-5
Explain why kilobytes and terabytes would not be descriptive measurements for the amount of space on an average USB storage device (8 - 256 GB).
Answer:
The storage capacity of the USB is far greater than Kilobytes, but less than a Terabyte.
Step-by-step explanation:
If 3(m+2)-5=m+2, what is the value of m+2
Answer:
m=.5
Step-by-step explanation:
What does theorem mean in geometry?
Answer:
A theorem is a statement that can be demonstrated to be true by accepted mathematical operations and arguments. In general, a theorem is an embodiment of some general principle that makes it part of a larger theory. The process of showing a theorem to be correct is called a proof.
Step-by-step explanation:
:)
Answer:
A theorem is a statement that can be demonstrated to be true by accepted mathematical operations and arguments. In general, a theorem is an embodiment of some general principle that makes it part of a larger theory. The process of showing a theorem to be correct is called a proof.
What is the y-intercept of the function, y = 3x -5?
Answer:
If you plug in 0 for the x value, you get y=−11.
Step-by-step explanation:
okkkkkk
hope it help mark as brainlist
Answer:
-5
Step-by-step explanation:
y=3x-5
-3x+y=-5
y=-5
6x4-12\6 please help me
A factory is fabricating seats for a minor league baseball stadium. The stadium holds 7,500 individuals and the factory can fabricate 300 seats per day. If 600 seats have already been made, how long will it take for the factory to finish 7,500 seats in total?
Answer: 23 days
Step-by-step explanation:
7500-600 = 6900
6900/300 = 23
what is 46.5 divided by .15
Answer:
310
Step-by-step explanation:
i used the calculator, Use a calculator to help
Which algebraic expression is equivalent to the expression below?
(6x + 10) + (8x - 2)
А.14x + 8
B. 24x-2
C. 14x + 12
D.16x-6
Answer:
A
Step-by-step explanation:
Add the Xs and subtract 2 from 10
What value of y satisfies the system of equations {9x+2y=24y=6x+19
Step-by-step explanation:
Equation 1: 9x + 2y = 24y, 9x = 22y, x = 22/9 y.
Equation 2: 24y = 6x + 19,
24y = 6(22/9 y) + 19
24y = 44/3 y + 19
28/3 y = 19
Hence, y = 19 * 3/28 = 57/28.
I am confused. what is 5r– 7 = 2r+ 14
Answer:
r=7
Step-by-step explanation:
5r-7=2r+14
add sevento both sides
5r=2r+21
Subtract 2r from both sides.
3r=21
divide both sides by 3
r=7
Subtract 2x-1 from 3x+7 Anyone know this ?
Answer: x + 8
Step-by-step explanation:
Set up the expression (3x+7) - (2x-1)
Then, distribute the negative sign across the 2x and -1 to get 3x+7-2x+1
Combine like terms: 3x-2x+7+1
= x + 8
When do u evaluate exponents in the order of operations??
Pls help I got 9 minutes to do this
Answer:
2nd
Step-by-step explanation:
Perenthasis
Exponets
Multiply
Divide
Add
Subtract
solve for x
[tex]\frac{3}{2}(x-2)-5=19[/tex]
to whoever helps thank you so much! <3
PLEASE HELP ITS DUE IN A FEW
There are 2.54 centimeters in 1 inch. There are 100 centimeters in 1 meter.
To the nearest meter, how many meters are in 119 inches?
Answer:
there is 5.0546meters
Step-by-step explanation:
1m=100cm
x =2.54cm
2.54cm=0. 0254m
so,
0.0254m=1inch
y =199inch
y = 0.0254×199m
y=5.0546m
What is the common difference in the arithmetic sequence 30, 27, 24, 21, 18...?
Answer:
-3
Step-by-step explanation:
To find the common difference take the second term minus the first term
27 - 30 = -3
Check by taking the third term and subtracting the second term
24 - 27 = -3
The common difference is -3
Tell whether the statement "All integers are rational numbers" is true or false. Explain your choice.
Answer:
True, all integers are rational numbers.
Step-by-step explanation:
Because each integer can be written as n/1 and integers can be positive and negative. For example, 3= 3/1 , 3 is the rational number. But all rational numbers like 1/2 =0.5 are not an integer. (fractions, decimals are not integers.)
7 to the 14 th power divided by 7 to the 2nd power
Answer:
13841287201
Step-by-step explanation:
I typed it into a calculator.
Answer:
7^12 = 13841287201Explanation:
7^14/7^2 here we use the identity-(a^m/a^n=a^m-n)therefore the answer is 7^14-2 =7^127^12 = 13841287201.Hope it helps.....
:)
Velvet fabric costs $11.49 a yard. Yvette buys 9.3 yards. Yvette's estimated cost of the velvet is
$20.
$99.
$104.
$120
Answer:
$99
Step-by-step explanation:
11.49 is estimated to 11
9.3 is estimated to 9
1 yard cost $11 what of 9
11×9=99
Answer:
99 is your anwser⇔
Step-by-step explanation:
