Answers
Answer:
C. -2n+3/n-4
Step-by-step explanation:
(n^2+10n+21)/(n^2+3n-28)-(3n/n-4)
(n^2+7n+3n+21)/(n^2+7n-4n-28)-(3n/(n-4)
(n(n+7)+3(n+7))/(n(n+7)-4(n+7))-(3n/n-4)
((n+7)(n+3)/(n+7)(n-4))-(3n/n-4)
(n+3/n-4)-(3n/n-4)
n+3-3n/n-4
-2n+3/n-4
Related Questions
If there are 2 pears for every 5 apples how many apples would there be if there were 26 pears?
Answers
Answer:
65
Step-by-step explanation:
26/2 = 13
5 x 13 = 65
Have an amazing day!
PLEASE RATE!
Find the missing number in the proportion.
4/3 = x/9
Answers
Answer:
12
Step-by-step explanation:
[tex] \frac{4}{3} = \frac{x}{9} \\ \\ \implies \: 3x = 4 \times 9 \\ \\ \implies \: 3x =36 \\ \\ \implies \: x = \frac{36}{3} \\ \\ \implies \: x =12[/tex]
Answer:
12
Step-by-step explanation:
or;4/3=X/9
or;3x=4×9
or;3x=36
or;X=36/3
Therefore;X=12
Find the area
Please help
Answers
Answer:
4
Step-by-step explanation:
2 * 4 / 2
= 8/2
=4
Carlos mide 54 pulgadas de estatura ¿cual es la estatura de Carlos en pies?
Answers
Hola!
carlos mide 4.5 pies
Explicación:
Hay 12 pulgadas en 1 pie
Hacemos 12 por 54 porque hay 54 pulgadas
12 * 54 = 540
Lo hacemos como un decimal porque esto es en pies
= 4.5
English:
Hello!
Carlos is 4.5 feet tall.
Explanation:
There are 12 inches in 1 foot.
We do 12 times 54 because there are 54 inches
12 * 54 = 540
We do it as a decimal because this is in feet
= 4.5
100 POINTS!
The Y-Intercept of a line is also known as the "Beginning Value".
A. False
B. True
Answers
Answer:
true
Step-by-step explanation:
true because it is right
Answer:
B. True
Step-by-step explanation:
The initial value, or y-intercept, is the output value when the input of a linear function is zero. It is the y-value of the point at which the line crosses the y-axis.
A thin wire of length 18 cm is bent down in the shape shown. Calculate the direct distance from A to B.
Answers
Answer:
give the pic..................
The answer to this question
Answers
Answer:
B.(4,10)
Step-by-step explanation:
Its where the 2 lines cross at
U get 30 pointshhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
Answers
Answer:
3.25
Step-by-step explanation:
The mean is the average of the data. I remember this by thinking, 'the average person is mean.'To find the average, or mean, you would add all of the variables together and divide it by the number of variables. The number of variables here would be 10, because there are 10 litters.We would add the amount of kittens together and divide it by 10. This will get us 57 ÷ 10 = 5.7.To find the MAD, take the mean (5.7) and subtract each number from 5.7, then square it. For example... [tex][5.7 - 4]^{2}[/tex] would be solved by first subtracting what is in the parenthesis (PEMDAS) which gets us 1.7, then multiplying it by itself (1.7 • 1.7) which equals 2.89.Repeat this process for all data points.What I got for all of the data points [listed below]Once you get all of the data points, you add them all together. This gets you 32.5.Now you divide 32.5 by 10, (to find the average of it) which gets you 3.25.2.89.49.49.09.091.695.295.295.2910.89If I am incorrect in my reasoning, please let me know so that I can plan better for my future answers. Have an amazing day.
12) Iz'lrian bought kg of chicken. He used of it to make chicken soup. How many kilograms of chicken
did he use to make the soup?
Answers
Answer:
1 kg
Step-by-step explanation:
Because he bought only that much
You want to calculate a z score for a test where your raw score is 24. What other information must you have
Answers
Please help me
What goes to what definition
Answers
Answer:
e, e, d, a, c
Step-by-step explanation:
The first two statements in the proof are given.
1. e
2. e
The third statement is the result of the midpoint, so we have the reason for statement 3.
3. d
LM is the third side of the triangles and is congruent to itself.
4. a
The triangles are congruent by having three sides congruent to three sides.
5. c
This bottle holds 720ml.It is 3/8 full.How much liquid is in the bottle?
Answers
Answer: It should be 270 ml
Step-by-step explanation:
To find 3/8 of 720, we need to know 1/8
Divide 720 by 8, this gives you 90
Now multiply 90 by 3 to get 3/8
Answer is 270 ml
A 4-column table has 3 rows. The first column is labeled Item with entries 50 inch plasma television, laptop computer, refrigerator. The second column is labeled Rent-to-own payments with entries 65 dollars per week for 1 year, 30 dollar per week for 1 year, 28 dollars per week for one year. The third column is labeled Installment plan with entries 146 dollars per month for 12 months, 100 dollars per month for 12 months, 80 dollars per month for 12 months. The fourth column is labeled Retail price with entries 1,450 dollars, 1,000 dollars, 800 dollars. Joshua is in college, and his computer broke. He can get it repaired, but it will take three weeks. What is the best decision that Joshua can make if he wants to spend the least amount of money? rent a computer for three weeks pay cash for a new computer use a rent-to-own program to buy a new computer use an installment plan to buy a new computer.
Answers
Answer:
A. rent a computer for three weeks
Step-by-step explanation:
hope it helps
Answer:
rent a computer for three weeks
Step-by-step explanation:
yes
The equation, –2x2 5xy – 7y2 9x – 7y 13 = 0, represents a conic. The discriminant is , so the equation represents a/an.
Answers
The equation ,[tex]-2x^2+5xy-7y^2+9x-7y+13=0[/tex] represents a conic. The discriminant is is -31 , so the represents an ellipse .
What is Conic ?A curve obtained by a cone and a plane is called conic .
Here given equation is
[tex]-2x^2+5xy-7y^2+9x-7y+13=0[/tex]
we know that discriminants of equation
[tex]$$A x^{2}+B x y+C y^{2}+D x+E y+F=0$$[/tex]
is [tex]$$D=B^{2}-4 A C$$[/tex]
and if
D<0 it's ellipse
D=0 it's parabola
D>0 It's hyperbola
Here, the is
[tex]$$D=5^{2}-4(-2)(-7)=-31$$[/tex]
Hence it's an ellipse
The equation ,[tex]-2x^2+5xy-7y^2+9x-7y+13=0[/tex] represents a conic. The discriminant is is -31 , so the represents an ellipse .
To know more about conic visit :https://brainly.com/question/3456995
Answer:
-31 and ellipse
Step-by-step explanation:
on edge :)
Find the distance between the points(-9,8) and (7,-10) if one unit represents one kilometer
Answers
Answer:
√X2-X1+√Y2-Y1
=√7-(-9) +√-10-8
=√16 + √-18
=4 + -(√18)
=4 + (-3√2)
=-0.24
Step-by-step explanation:
by answering this you must use the distance formula and label -9 as X1 , 8 as Y1 and 7 as X2 , -10 as Y2 then you put X2-X1 in the same root sine do the same at Y2-Y1.
a dress shirt that normally cost $38.50 is on sale and being advertised as a 30% decrease. what percent expression could be used to find the sale price of the shirt?
Answers
.7 * 38.5 = original price
.7 * 38.5 = $26.95
I NEED THE ANSWER QUICK! THE FIRST ANSWER GETS BRAINLIEST!
What is the area of this trapezoid?
Enter your answer in the box.
Answers
Answer:
80
Step-by-step explanation:
i gotchuuuuu
okok so a really easy way that this can be done is by not doing the full trapezoid, but splitting it up into 2 triangles and 1 rectangle
area of triangle: 1/2BH
area of rectangle: LW
Ookie so first the triangles:
both have the exact same measurements:
7 is the base, and the height is 8. Even tho it doesn't say 8 on one of them, we can visually see that it is the same height.
So, for BOTH triangles, 8*7=56, divided by 2=28.
Now, the rectangle:
width is 3, and length is 8.
8*3=24.
ADD TOGETHER: 28+28+24=80
AREA=80
Answer:
80
Step-by-step explanation:
area of the two triangles
= (7x8)/2x2
= 56
area of the rectangle
= 8x3 = 24
area of the trapezoid
= 56+24
=80
A point at (-4,10) in the standard (x,y) coordinate
plane is translated right 10 coordinate units and down
4 coordinate units. What are the coordinates of the
point after the translation?
Answers
Translation involves changing the position of a point along the standard coordinate plane
The coordinate of the point after translation is (6,6)
How to translate the pointThe point is given as:
(-4,10)
When the point is translated 10 units right, the new coordinate becomes
(-4 + 10,10)
(6,10)
When the point is translated 4 units down, we have:
(6,10 - 4)
(6,6)
Hence, the coordinate of the point after translation is (6,6)
Read more about translation at:
https://brainly.com/question/11468584
Find the quotient of z1 by 22. Express your answer in trigonometric form
HELP ASAP
Answers
Condense z₁ and z₂ into their exponential forms:
z₁ = 3 (cos(π/4) + i sin(π/4)) = 3 exp(i π/4)
z₂ = 7 (cos(3π/8) + i sin(3π/8)) = 7 exp(i 3π/8)
Then the quotient of z₁ and z₂ is
z₁ / z₂ = 3/7 exp(i (π/4 - 3π/8)) = 3/7 exp(-i π/8)
and in trigonometric form,
z₁ / z₂ = 3/7 (cos(-π/8) + i sin(-π/8))) … … … D
Need help with this math
Answers
Answer:
USE BODMAS
2^p+q
The surface area of a cone with radius r units and slant height s units is shown below:
Surface area = 3.14(rs + p2)
Part A: If r = 6 units and s = 4 units,
write an expression that can be used to calculate the surface area of the cone.
Part B: What is the surface area of the cone? Show your work.
PLEASE HELP WILL GIVE BRAINLIEST AND 5.0 STAR RATING
Answers
Answer:
A. 3.14(6·4 +6²)
B. 188.4 square units
Step-by-step explanation:
Use the given expression to calculate surface area by substituting the numbers for the corresponding variables.
A.3.14(rs +r²) . . . . for r = 6 and s = 4
= 3.14(6·4 +6²)
__
B.Evaluating the above expression gives the surface area:
= 3.14(24 +36) = 3.14(60) = 188.4 . . . square units
The second angle of a triangle is 100 more than the first angle. The third angle is two times the first. Find
the three angles.
First angle:
Second angle:
Third angle
Answers
Answer:
Step-by-step explanation:
What is the value of s?
Answers
Answer:
63
Step-by-step explanation:
(s-13) +s = s + 50
2s - 13 = s + 50
add 13 both sides, subtract the s from both sides
s = 63
Answer:
s = 63°
Step-by-step explanation:
the exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.
s + 50 is an exterior angle of the triangle , then
s + 50 = s - 13 + s
s + 50 = 2s - 13 ( subtract s from both sides )
50 = s - 13 ( add 13 to both sides )
63 = s
Once again I need some help with my math.
What is the slope of the line shown in the graph? A) Slope = 1 3 B) Slope = − 1 3 C) Slope = − 3 1 D) Slope = 3 1
Answers
A cardboard box is shaped like a cube. The length of each side is 15 inch
What is the volume of the box, in cubic inches?
Answers
Answer: 3375 cubic inches
Step-by-step explanation:
Formula for the volume of cube is : V=a^3
so V = 15*15*15
V= 3375 cubic inches
So: 15 times 15 times 15 equals 3375 cubic inches. 3375 is the volume.
The width and height are 15 because the cardboard box is shaped like a cube which makes the length height and width the same.
3 more than the quotient of 18 and x
Part A Write as a expression
Part B evaluate that same expression when
X=3
Answers
Answer:
18
Step-by-step explanation:
[tex]3 (\frac{18}{ x} ) = 3 \times (\frac{18}{3} ) = 18[/tex]
what is (x, y) (kx, ky)
Answers
Answer:
AllRealNumbers
Step-by-step explanation:
If you multiply x by k and y by k it would be the same if you did not so it would be AllRealNumbers
Please help me with this last math problem!! No links please!! Will give brainliest if correct!! It's due tonight!! :)
Answers
3x+3=x+21
Then, you can solve for x:
3x+3=x+21
2x=18
x=9
Plugging in 9 into either equation of BC or AD should give you 30 for both sides:
3(9)+3=30
(9)+21=30
For CD, you can also plug in 9 for x:
2(9)-9=18
Since AB and CD are labeled as congruent, both sides are 18.
x=9
AB=18
BC=30
CD=18
AD=30
Four less than a number
Answers
Step-by-step explanation:
For writing the expression, represent 'a number' as x, as it's unknown.
The word format explains;
Four less than x.
Subtracting 4 from x will represent four less than x.
Expression is represented as;
[tex]x - 4[/tex]
What is the area of a circle with a diameter of 8 centimeters? Use 3.14 for π.
Answers
Answer:
50.24 cm^2
Step-by-step explanation:
The formula for the area of a circle is A = πr^2
The radius is half of the diameter so r = 4
So now you can solve:
A = 3.14(4)^2
= 50.24 cm^2