What is the answer step by step
2(3x-4)-(x-7)=-6(x+1)+7x
Answers
Answer:
x = -5/4
Step-by-step explanation:
Related Questions
Review the proof of de Moivre’s theorem.
Proof of de Moivre's Theorem
[cos(θ) + i sin(θ)]k + 1
A = [cos(θ) + i sin(θ)]k ∙ [cos(θ) + i sin(θ)]1
B = [cos(kθ) + i sin(kθ)] ∙ [cos(θ) + i sin(θ)]
C = cos(kθ)cos(θ) − sin(kθ)sin(θ) + i [sin(kθ)cos(θ) + cos(kθ)sin(θ)]
D = ?
E = cos[(k + 1)θ] + i sin[(k + 1)θ]
Which expression will complete the proof?
Answers
Answer:
D
Step-by-step explanation:
Just took it.
Answer: D. cos(kθ + θ) + i sin(kθ + θ)
Step-by-step explanation:
The screenshot pretty much speaks for itself, but you can see that the proof ends with cos[(k + 1)θ] + i sin[(k + 1)θ]. That means that addition is happening in Step D, and that the expressions in the cosine and sine parts are the same. So, the correct option is D. Hope that helps!
The hypotenuse of a right triangle is 18 inches long. The leg is 7 inches long.
What is the measure of the third side? Round your answer to the nearest
tenth if necessary.
19.3 in
16.6 in
14.2 in
11 in
Answers
Answer:
16.6 in
Step-by-step explanation:
182^2﹣72^2≈ 16.58312 round it and you get 16.6 in
find the value of x
Answers
Answer:
4√5
Step-by-step explanation:
Use Pythagorean theorem
a^2=21^2-19^2
a^2=441-19^2
a^2=441-361
a^2=80
a= √80
simplify
Subtract the expression 5x-(-3x2+24)
Answers
Answer:
-90 is the answer
Step-by-step explanation:
hope it helpss <3
Here is a number line.
-3
-2 -1
0
3
(a) On this number line, show the inequality -2 = x < 3
(b) Solve 5 + 3 > 27
Answers
Answer:
no no nooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo
ooooooooooooooooooooo
ooooooooooooooooo
ooooooooooooooo
ooooooooooooo
ooooooooooooo
oooooooo
ooooo
ooo
oo
o
Step-by-step explanation:
Answer: a) see the graph below
b) n > 24/5 or 4.8
Step-by-step explanation:
a) see the graph below.
-2 is smaller and equal to x, so the point is close circle; and 3 is only greater than x, so it only has open circle, and the line was between the range from -2 to 3.
b) 5n + 3 >27
5n > 24 [Subtradt 3 from both side]
n > 24/5 or 4.8
Help me? pls...... :)
Answers
Answer: its c
Step-by-step explanation: if not then im sorry for the wrong answer
Answer:
7 units
Step-by-step explanation:
The Mount Rushmore Monument is 60 feet tall. A model of the monument is sold in the gift shop. If the model was made using a scale of 1 inch = 40 inches, how tall is the model?
Answers
Answer:huh
Step-by-step explanation:huh
The model is 28800 inches tall if the Mount Rushmore Monument is 60 feet tall. A model of the monument is sold in the gift shop.
What is a scale factor?The ratio among comparable dimensions of an object and a model with that object is known as an exponent in algebra. The replica will be larger if the scale factor is a whole number. The duplicate will be lowered if the step size is a fraction.
It is given that:
The Mount Rushmore Monument is 60 feet tall. A model of the monument is sold in the gift shop.
As we know, unit conversion can be defined as the conversion from one quantity unit to another quantity unit followed by the process of division, and multiplication by a conversion factor.
1 feet = 12 inches
60 feet = 60x12 = 720 inches
The scale f 1 inch = 40 inches
720 inches after scale:
= 720x40
= 28800 inches
Thus, the model is 28800 inches tall if the Mount Rushmore Monument is 60 feet tall. A model of the monument is sold in the gift shop.
Learn more about the scale factor here:
brainly.com/question/22312172
#SPJ2
HELP
-7 = 1/3(x - 12)
Answers
Answer:
-9
Step-by-step explanation:
Answer:
x = -9
Step-by-step explanation:
1/3 (x) 1/3 (-12)
-7 = 1/3x - (-4)
+ 4 +4
------------------------
-3 = 1/3x
--- ------
1/3 1/3
x = -9
determine the measure of each angle. 4x - 90= ? Degree
Answers
Answer:
4x - 90= 90
Explain:
Simplifying
(4x + -90) = 90
Reorder the terms:
(-90 + 4x) = 90
Remove parenthesis around (-90 + 4x)
-90 + 4x = 90
Solving
-90 + 4x = 90
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '90' to each side of the equation.
-90 + 90 + 4x = 90 + 90
Combine like terms: -90 + 90 = 0
0 + 4x = 90 + 90
4x = 90 + 90
Combine like terms: 90 + 90 = 180
4x = 180
Divide each side by '4'.
x = 45
Simplifying
x = 45
Express 24 inches to 6 feet in simplest form.
Answers
Answer:
no
Step-by-step explanation:
Please help with these 3 questions about simplifying square roots...
Answers
Answer:
#2:
To get rid of a radical we multiply the radical by itself, so we multiply [tex]\frac{3}{\sqrt{2}} by \frac{\sqrt{2}}{\sqrt{2}}[/tex]
to get [tex]\frac{3\sqrt{2}}{2}[/tex].
#3:
[tex]\sqrt\frac{2}{5}[/tex] is the same as [tex]\frac{\sqrt{2}}{\sqrt{5}}[/tex] so we multiply by [tex]\frac{\sqrt{5}}{\sqrt{5}}[/tex] so we get [tex]\frac{\sqrt{10}}{5}[/tex].
#4:
We combine like terms to get [tex]-2\sqrt{2} + 4\sqrt{3}[/tex]
Hope this helps!
Please help me , im so bad at this loll
Answers
Answer:
1st: 8
3rd:0.25
4th:19
5th:1
Step-by-step explanation:
2+2 pls help btw 4 .....
Answers
Answer:
is it 22.
Step-by-step explanation:
is it?
Answer:
I think its -24000
Not so sure though.
Find sin 0, where is the angle shown.
Give an exact value, not a decimal approximation.
Answers
Answer:
sinθ = [tex]\frac{24}{25}[/tex]
Step-by-step explanation:
By applying Pythagoras theorem in the given triangle,
Hypotenuse² = (Leg 1)² + (Leg 2)²
= (24)² + 7²
Hypotenuse = √625 = 25
By applying sine rule in the given triangle,
sinθ = [tex]\frac{\text{Opposite side}}{\text{Hypotenuse}}[/tex]
Since, measure of opposite side = 24
Measure of hypotenuse = 25
Therefore, sinθ = [tex]\frac{24}{25}[/tex] will be the answer.
Help please like can u explain instead of just giving me the answer
Answers
Answer:
Thanks for asking for the explanation, everyone wants just the answer, You want to know how to solve the problem , great. :)
Step-by-step explanation:
Our strategy and one you can use on any triangle problem.
the interior angles add to 180° . Remembering that, seems to me, that very often is the "key" to figuring out triangle problems.
keeping that in mind, we know to add up all the inside angles to 180
180= A + B + C
from this particular triangle then, we have
A = 6X
B = 90 ( b/c that's what the small red square is telling us, it's a 90 angle )
C = 5x - 2
put that all together
180 = 6x + 90 +5x - 2
now use your algebra skills to solve for X ( and to be fair, this is where lots of people struggle, the algebra skills are not so good )
so I'll just go slow
put like terms together
180 = 11x + 88 ( I just added the terms with an x, and the constant terms )
move the 88 over to the other side by subtracting
92 = 11x
divide both sides by 11
92 / 11 = x
8.3636 = x
now that we know x, plug it into the expression for the angle next to the y angle in the picture
5x - 2
5(8.3636) - 2
39.8181
then y is the other part of another 180 pair of angles sooo use that again
180 = 39.8181 + y
solve for y
140.1818 = y
Hope this helps, ask any questions you may have, :)
Fractions equivalent to 6/12 choose all correct 1)1/2 2)2/4 3)3/9 4)1/6 5)4/10
Answers
Answer:
1 and 2
Step-by-step explanation:
Answer:
1/2
Step-by-step explanation:
6/12 =1/2
I hope this helps
i need the find the area of a rectangle. the length is 6.5x + 5ft and the width is 15 ft
Answers
Answer:
Area= l+b) ×2
6.5x+5ft +5ft
13x+20ft
A sports shop has 60 employees. 35% of the employees work part-time. How many part-time employees does the sports shop have?
Answers
Answer:
I think it is 21 employees
Step-by-step explanation:
hope I’m right :)
PLZ HELP!!!!!!!!!!!!!
Answers
Answer:
Move the decimal point 3 times to the left.
Step-by-step explanation:
Consider the equation n2+5=21.
Select from the drop-down menus to correctly complete the statement.
response - correct
The first step in solving the equation is to isolate the power.
After that, take the square root of each side.
Correct
Before you can use the square root property, one side of the equation must be a perfect square.
Question 2
Solve the equation.
Enter your answers in the boxes.
The solutions are
and
.
Answers
Step-by-step explanation:
n2+5=21
n2 =21-5
n2 = 16
n =16/2=8
WILL MARK BRAINLIEST
Enter the values for the following composite transformation.
Translate
units left and _____ units down, then rotate _____°.
Answers
Answer:
down 6,right 4, rotate 180 degrees assuming we are starting from the blue heart.
Step-by-step explanation:
b
The equation sin(40°) = can be used to determine
20
the length of line segment AC.
- kao
C
b
А A
20 cm
400
B
Answers
Answer:
14.9cm
Step-by-step explanation:
20sin40= b
b= 14.9022
b = 14.9cm
Write a function rule for "The output is 7 less than three times the input." Use x for the independent variable and y for the dependent variable. I need help
Answers
Answer:
f(x) = 3x - 7
Step-by-step explanation:
Let the independent variable of a function is 'y' and dependent variable 'x'.
Therefore, function will be in the form of y = ax - b
Now statement given in the question states that "The output is 7 more than 3 times the input."
That means y is 7 less than 3 times of x.
y = 3x - 7
Rewrite this equation in the form of a function.
f(x) = 3x - 7
pleaseeee help!!!!
1. Find the -circumference- of the circle below.
Round your answer to the nearest hundredth (i.e. 2 decimal places).
(there is two questions) same circle
2. Find the -area- of the circle below.
Round your answer to the nearest hundredth (i.e. 2 decimal places).
Do not write the units. Only write the number.
Do not write the units. Only write the number.
Answers
1. 43.96
2. 153.86
can someone help me please
Answers
Answer:
its correct don't sweat
Step-by-step explanation:
If I am right you are trying to find where the line cross each other it runs on 4 and rises to 2.
20 points
On Sunday, the 13th of April, the newspaper printed that the basketball game this past Friday April 14th was “One that will never be forgotten.” Which of the following best explains what happened in this section?
Answers
Answer:
yes the person who responded before is right
Please Help!!!!! Best answer gets Brainliesttttt
Answers
Answer:
hi uhm what am i supposed to figure out?
Step-by-step explanation:
Gina did not use the same ratio as her teacher. I know this because 4:3 is not a simplified version of 9:6. If her teacher were to use a 8:6 ratio then it would’ve been the same.
Raheem , stuart and tommy share £594, the ratio of the amount of money raheem gets to amount of money tommy gets is 4:6. Raheem gets £108 less than tommy, how much does each person get.
Answers
Answer:
Step-by-step explanation:
Raheem , stuart and tommy share £594, the ratio of the amount of money raheem gets to amount of money tommy gets is 4:6. Raheem gets £108 less than tommy, how much does each person get.
Let the Amount of money
Raheem got = x
Tommy = y
Raheem gets £108 less than tommy
x = y - 108
The ratio of the amount of money raheem gets to amount of money tommy gets is 4:6.
Sum of Proportion =
4 + 6 = 10
=
WHAT IS THE SURFACE AREA HELP
Answers
Answer:
SA = 348 cm squared
Anna went to the store to buy a new dress. The dress she chose was 30% off the original price. What was the original price of the dress that was marked down dollars 13.95?
Answers
Answer:
$46.5
Step-by-step explanation:
Let X be the original price.
0.3X=13.95, X=13.95/0.3, X=46.5.
Answer:
18.135
Step-by-step explanation:
13.95×30/100=4.185
13.95+4.185=18.135