Answer:
2
9/5
Step-by-step explanation:
2/1 = 2
18/10 (divide by 2 up and down) = 9/5
In a neutral atom that has an atomic mass of 22 and atomic number of 12, how many neutrons does this element have?
Given :
In a neutral atom that has an atomic mass of 22 and atomic number of 12.To Find :-
The number of neutrons .Solution :-
As we know that,
n(neutrons) + n(protons) = A n(neutrons) + 12 = 2 2n(neutrons) = 22-12n(neutrons) = 10Hence the required answer is 10.
Answer:
10 neutrons
Step-by-step explanation:
no.of neutrons = atomic mass - Atomic number
no.of neutrons= 22-12
=10
What is an equation of the line that passes through the point (-4,-6) and is
perpendicular to the line 2c – y = 6?
Answer:
y = -1/2c - 8
Step-by-step explanation:
2c - y = 6
2c -6 = y
Slope: 2. Slope of the perpendicular line: -1/2
Point (-4,-6)
y-intercept = -6 - (-1/2)(-4)
b = -6 -2 = -8
The equation of the line that passes through the point [tex](-4,-6)[/tex] and is
perpendicular to the line [tex]2c - y = 6[/tex] is [tex]2x_{2} -y_{2} +2=0[/tex].
What is equation of the line ?Equation of the line: The general equation of a straight line is [tex]y = mx + c[/tex]. This variable [tex]'c'[/tex] is called the intercept on the [tex]y-axis[/tex]. And [tex]y = c[/tex] is the value where the line cuts the [tex]y-axis[/tex].
Here,
[tex]m=[/tex] the gradient,
[tex]c=[/tex] the intercept on the y-axis
We have,
An equation of the line that passes through the point [tex](-4,-6)[/tex] and is
perpendicular to the line [tex]2c - y = 6[/tex] .
So,
Line [tex]2c - y = 6[/tex]
[tex]2c - y = 6[/tex]
⇒ [tex]y=2c-6[/tex]
and [tex]y = mx + c[/tex]
On comparing above two equations
[tex]m=2[/tex]
and Slope [tex]=-\frac{1}{m}[/tex]
So, Slope [tex]=-\frac{1}{2}[/tex]
Now,
Slope of the equation [tex](m)=\frac{y_{2} -y_{1} }{x_{2} -x_{1} }[/tex]
Slope of required equation [tex]=\frac{-1}{Slope \ of \ 2c-y=6}[/tex]
[tex]=\frac{-1}{\frac{(-1)}{2} }=2[/tex]
Now,
Equation of line with slope [tex]2[/tex] and passing through point [tex](-4,-6)[/tex] ,
Slope of the equation [tex](m)=\frac{y_{2} -y_{1} }{x_{2} -x_{1} }[/tex]
[tex]2=\frac{y_{2} -(-6) }{x_{2} -(-4) }[/tex]
[tex]2x_{2} +8=y_{2} +6[/tex]
[tex]2x_{2} -y_{2} +2=0[/tex]
So, the equation of the line is [tex]2x_{2} -y_{2} +2=0[/tex] .
Hence, we can say that the equation of the line that passes through the point [tex](-4,-6)[/tex] and is perpendicular to the line [tex]2c - y = 6[/tex] is [tex]2x_{2} -y_{2} +2=0[/tex].
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True or False: Midpoint is represented by a whole number, Indicating a length.
How can you use a property to write a simplified equivalent
expression?
Answer:
For example, apply the distributive property to the expression 3 (2 + ) to produce the equivalent expression 6 + 3; apply the distributive property to the expression 24 + 18 to produce the equivalent expression 6 (4 + 3); apply properties of operations to + + to produce the equivalent expression 3.
Step-by-step explanation: hope this helps
please help me please
What is the justification for each step in the solution of the equation?
5x−4/2=2x−1
Select from the drop-down menus to correctly justify each step.
5x−42=2x−1 Given
5x−4=2(2x−1) Choose...
5x−4=4x−2 Choose...
5x=4x+2 Addition or Subtraction Property of Equality
x=2 Choose...
Options
Addition or subtraction property of equality
Multiplication or division property of equality
Distributive property of equality
Combine like terms
The "/" Is for a fraction.
Answer:
5x-2=2x-1
5x-2x=-1+2
3x=1
3/3x=1/3
x=1/3 or 1.3333...
On a snow day, Kayden created two snowmen in his backyard. Snowman A was built to a height of 59 inches and Snowman B was built to a height of 34 inches. The next day, the temperature increased and both snowmen began to melt. At sunrise, Snowman A's height decrease by 7 inches per hour and Snowman B's height decreased by 2 inches per hour. Let AA represent the height of Snowman A tt hours after sunrise and let BB represent the height of Snowman B tt hours after sunrise. Write an equation for each situation, in terms of t,t, and determine the interval of time, t,t, when Snowman A is taller than Snowman B.
A=
B=
Snowman A is taller than Snowman B when tt ___ __ ___
Answer:
AA=59-7t
BB=34-2t
t<5
Step-by-step explanation:
AA=59-7t
BB=34-2t
Snowman A is taller than Snowman B while 59-7t > 34-2t
25>5t
t < 5 hrs
Solve √3x+4−2=3
The square root covers the 4 but not the -2
[tex] \sqrt{3} x + 4 - 2 = 3 \\ = > \sqrt{3} x = 3 - 4 + 2 \\ = > \sqrt{3} x = 1 \\ = > x = \frac{1}{ \sqrt{3} } \\rationalising \: \: \: the \: \: \: denominator \\ = > x = \frac{1}{ \sqrt{3} } \times \frac{ \sqrt{3} }{ \sqrt{3} } \\ = > x = \frac{ \sqrt{3} }{3} \\ [/tex]
Answer:[tex] \frac{ \sqrt{3} }{3} [/tex]
Answer: x = 7
Step-by-step explanation:
[tex]\sqrt{3x+4}=3+2[/tex]
[tex]\sqrt{3x+4}=5[/tex]
[tex]3x+4 =25[/tex]
[tex]3x = 21[/tex]
[tex]x=7[/tex]
Please give me a brainliest answer
What is equivalent to 114-201
Answer:
-87
Here ya go :)
7/8 divided by 2 1/4
Answer:
7/18
Step-by-step explanation:
10. A furniture company allows customers to purchase household furnishings with an in-store loan,
pay with cash or a credit card, or Rent-To-Own with a lease agreement.
A customer chooses furniture worth $3,225.00 including tax and chooses to Rent-To-Own.
Rent to Own Furniture Warehouse
• No down payment is required.
• The monthly lease payment is $156.99 for 2 years.
a. Calculate the total cost to own the furniture using the Rent-To-Own option.
b. What the amount of the finance charge on this purchase?
c. What simple interest percentage rate is this finance charge? Recall: = �
Answer:
a) Cost of rent to own option is = ($156.99/month) ( 2 yrs)( 12 month/yr) = $3767.76
b) The amount of the finance charge is = $3767.76 - $3225.00 = $542.76
c) the simple interest rate can be calculated by this formula
I = Prt, where
I = total interest value = $542.76
P = is the present worth or original cost including taxes = $3225.00
t = time in yrs = 2
r = Yearly interest rate, By rearranging the formula:
r = I /Pt, r = ( $542.76 / $3225.00 . 2) ( 100) = 8.415%
Step-by-step explanation:
Shaheer takes 4 1/2 minutes to run ONE
PROPER LAP around the School
How many laps can he do in each time
a) 30 minutes
b) 20 minutes
c) 15 minutes
Answer:
Im not
sure but i think its (B) i really hope its right
Step-by-step explanation:
Can y’all please help?
Answer:
7
Step-by-step explanation:
You subtract 220 - 129 = 91 then divide by 13
f (x) = x +11. Find the inverse of f(x).
O A. f-1(2) = x3 + 11
O B. f-'(x) = (x + 11)3
O c. f-1(x) = 23 – 11
O D. f-1(x) = (2x – 11)3
Answer:
y = x - 11
Step-by-step explanation:
f (x) = x + 11
y = x + 11
x = y + 11
x - 11 = y
What is an equation of the line that passes through the point (8,0) and is parallel to the line x-4y=20?
Answer:
y= 1/4 (x -8)
Step-by-step explanation:
x -4y= 20
-4y= -x + 20
y= 1/4 × -5
y - y1 = m (x - x1)
y - 0 = 1/4 (x -8)
y= 1/4 (x -8)
Please Help me. Put the following equation of a line into slope-intercept form, simplifying all fractions.
4x+6y= -36
I will give brainliest if right, please help!
Which line uses all trochees?
A. Correct, the mall is over there
B. Roadrunners and barbecue
C. Toy store sausages swung by
D. Ask me questions now or later
Answer:
I believe it is c
Step-by-step explanation:
The metrical pattern of a trochee is said to have a "falling rhythm" because the emphasis comes at the beginning of the foot: "da-dum da-dum." This falling rhythm is the exact opposite of the iambic "rising rhythm" that is more common in both poetry and speech, so the cadence of trochaic meter tends to sound a little unnatural to the ear. While for this reason trochees are relatively rare in most poetry, the "downward" motion and "backward" orientation of trochees actually makes them a popular foot for writing about dark subjects like madness and death.
Answer:
Step-by-step explanation:
I don't understand this but D is the
A coordinate plane with a line passing through (negative 3, 0), (0, negative 2) and (3, negative 4).
What is the equation of the graphed line written in standard form?
2x + 3y = –6
2x + 3y = 6
y equals negative StartFraction 2 Over 3 EndFraction x minus 2.
y equals StartFraction 2 Over 3 EndFraction x minus 2.
Answer:
2x+3y=-6
Step-by-step explanation:
the intercepts are (-3,0) (x intercept) and (0,-2) (y intercept)
this means that when x = 0, y = -2 and when y = 0, x = -3.
the last two are not in standard form, so we can eliminate those.
the answer also cannot be the second one because both intercepts are negative. when we solve it, the intercepts would be (3,0) and (0,2). the answer must be 2x+3y=-6.
sorry for the late reply!
Answer:
I believe its A. 2x+3y=-6
Step-by-step explanation:
Rewrite each of the following expressions using either a generic rectangle or the Distributive Property
Answer:
a) -8yx-20y
b) -6x ² - 3xy - 16x -2y - 8
Step-by-step explanation:
a) -4y(2x+5) apply multiplicative distribution law
-4y × 2x - 4y × 5 multiply the monomials
-8yx - 20y
b) kinda the same steps like a
:) distributive property btw
hope it helps if you need the steps for b I'll send them in the comment
Can anyone help asap please
Answer:
Step-by-step explanation:
a=e= 90 b/c it is square
b= 45, it half of square
c base in rule of sin or cos, tan.
d=2,85
I don't get this please help
plz help me im stuck
211-0 + (-71-9)
.
Simplify
0 0
-3,12
-3
0 -3
DONE
Answer:
-3, -
Step-by-step explanation:
I took the test
cancelout the v^-6
21/-7
-3
Answer:
Step-by-step explanation:
[tex]\dfrac{21y^{-6}}{-7y^{-6}}= (-3) *y^{-6 -[-6]} = (-3)*y^{6+6}=-3*y^{0} = -3*1 = -3[/tex]
find the slope of the skate ramp that has a vertical change of 7 and horizontal change of 35
Answer:
1/5
Step-by-step explanation:
6.
Find the area of a rectangle with
length 2x - 7 and width 3x +4.
Answer:
[tex]A=6x^{2} -13x-28[/tex]
Step-by-step explanation:
A=L(W)
A=2x-7(3x+4)
Use distributive property
[tex]A=6x^{2} +8x-21x-28[/tex]
Combine like terms
[tex]A=6x^{2} -13x-28[/tex]
Find the perimeter of the following figure
plsplspls
Answer:
30+4x
Step-by-step explanation:
Well, break it up into pieces: two rectangles.
A quadratic function y = f(x) is plotted on a graph and the vertex of
the resulting parabola is (3, -5). What is the vertex of the function
defined as g(x) = f(-x) + 3?
Answer:
the vertex is (0,3)
Step-by-step explanation:
using vertex form: y=a(x-h)^2+k you can find the vertex
h: the horizontal <----------->
and
k: the vertical |
so, there is no h, but there is a k, which is 3, so the answer is (0,3) I believe
I NEED HELP ASAP I WILL MARK BRAINLIEST :’]
The question is “Find the equation of the line. Use exact numbers.”
Answer:
y=x-5
Step-by-step explanation:
Find the missing side of the length, s. I need help!
Answer:
s = 12
Step-by-step explanation:
Since the triangles are similar then corresponding sides are in proportion, that is
[tex]\frac{AB}{XY}[/tex] = [tex]\frac{AC}{XZ}[/tex] , substitute values
[tex]\frac{6}{9}[/tex] = [tex]\frac{8}{s}[/tex] ( cross- multiply )
6s = 72 ( divide both sides by 6 )
s = 12
3/7x2/3.....................
Answer:
3/7 times 2/3 is 2/7
Step-by-step explanation:
I used a calculator ! Please let me know if i am incorrect.
Answer:
0.28571428571
basically 0.28
Step-by-step explanation:
gooogle calculator