Refer to the attachment...
Since the line is parallel to the given equation , slope of required line = slope of the given equation of line
slope = -1/2
In a class there are 11 boys and 19 girls.
The mean weight of all 30 children is 32.85 kg.
The mean weight of the 11 boys is 31.9 kg.
Work out the mean weight of the 19 girls.
Answer:
explain two ways in which the preservation of natural environments adds quality of life in a country : ,
pls help me solve thisss
Answer:
D. 8
Step-by-step explanation:
[tex]3\frac{3}{5} x2\frac{2}{9}[/tex] Convert the fractions into a improper fractions
[tex]\frac{18}{5} x\frac{20}{9}[/tex] Multiply 18 x 20 / 5 x 9
[tex]\frac{360}{45}[/tex] Simplify
8
Find the product of (4a-5b) and (3a+4b-2c).
AISO, Find the value of the product when A=2 b-3 and C= -2
Answer:
solution given:
product of (4a-5b) and (3a+4b-2c) is:
(4a-5b)*(3a+4b-2c)4a(3a+4b-2c)-5b(3a+4b-2c)12a²+16ab-8ac -(15ab+20b²-10bc)12a²+16ab-8ac-15ab-20b²+10bc12a²+16ab-15ab+10bc-8ac-20b²12a²+ab+10bc-8ac-20b²the value of the product when A=2 b-3 and C= -2 :
(4a-5b)*(3a+4b-2c)
(4*2-5*(-3))*(3*2+4*(-3)-2*(-2))(8+15)(6-12+4)23*(-2)-46Nandan bought some pencils at the rate of Rs 20 per pencil . He also bought an equal number of erasers at the rate of Rs 4 per eraser . He made 40 % profit on pencils and 50 % profit on erasers . At the end of the day, all the pencils and erasers were sold out and he made a profit of Rs 470 . Find the number of pencils he purchased.
Answer:
47 pencil
Step-by-step explanation:
Let x represent the number of pencils that were bought. Since equal number of erasers where also purchased, hence x erasers were purchased.
Cost of pencils = Rs 20 per pencil * x pencils = 20x
Cost of erasers = Rs 4 per eraser * x eraser = 4x
40% profit was made on pencils, hence:
Profit on pencils = 40% of cost price = 0.4 * 20x = 8x
50% profit was made on erasers, hence:
Profit on eraser = 50% of cost price = 0.5 * 4x = 2x
Since the total profit from pencil and eraser was Rs 470, hence:
8x + 2x = 470
10x = 470
x = 47
Therefore he purchased 47 pencil
which ordered pair is a solution of the equation 5x-3y=-12
A) (-3,-1)
B) (-1,-2)
C) (-1,-3)
D) (-2,-1)
PLEASE EXPLAIN ANSWER
Which of the following sequences is not geometric
Find the midpoint of the segment with endpoints:
(9,8) and (3,5).
pls pls pls pls help!!!! for geometry final
Answer:
Step-by-step explanation:
here x1=9 y1=8 x2=3 y2=5
midpoint=(x2+x1/2 , y2+y1/2)
=(3+9/2 , 5+8/2)
=(12/2 , 13/2)
=(6 , 13/2)
Two numbers are in the ratio 3:5. If one of them is greater than the other by 10,Find the smaller number.
Answer:
smaller number = 15
Step-by-step explanation:
Let the two numbers be 5x and 3x respectively.
According to the question —
5x — 3x = 10
2x = 10
x = 5
Thus the smaller number is 3 × 5 = 15
Answer:
15?
Step-by-step explanation:
Sorry I'm not entirely sure that is correct but I hope it helped!
help me with this math question
Answer:
x= 44.1
Step-by-step explanation:
Since this is a right triangle, we can use trig functions
sin theta = opp / hypotenuse
sin 27 = 20/x
x sin 27 = 20
x = 20 / sin 27
x= 44.05378529
Rounding to the nearest tenth
x= 44.1
Find the average rate of change of
Answer:
Rate of change = - 4
Step-by-step explanation:
[tex]h(x) = -x^2 + 3x + 1 \\\\h(2) = -(2)^2 + (3 \times 2) + 1 = - 4 + 6 + 1 = 3\\h(5) = - (5)^2 + ( 3 \times 5) + 1 = - 25 + 15 + 1 = -9\\[/tex]
Rate of change :
[tex]= \frac{h(2) - h(5)}{2-5} = \frac{3-(-9)}{2-5} = \frac{3+9}{-3} = - \frac{12}{3} = -4[/tex]
need this solved for geometry ! thanks !
what would be the equation for this graph? (WILL GIVE BRAINLEIST!)
Answer:
y = (x - 2)² - 9 Vertex form
y = x² - 4x - 5 Standard form
Step-by-step explanation:
vertex = (h, k) = (2, -9)
Vertex form
y = a(x - h)² + k
y = a(x - 2)² - 9
find "a" using point (5, 0)
0 = a(5 - 2)² - 9
0 = a(3)² - 9
0 = 9a - 9
9 = 9a
a = 1
y = (x - 2)² - 9
Standard form
y = (x² - 4x + 4) - 9
y = x² - 4x - 5
Margie drew the following figureHow can margie find the length of CD
Answer:
12
Step-by-step explanation:
Answer:
12............................
Step-by-step explanation:
wuch equation represents O AB OB. re
Answer:
The answer that is C
Step-by-step explanation:
The equation would be y=1/2x + 8 because the line touches the y-intercept at +8. The others would be incorrect as the line does not increase by a slop of 8/1 and/or is the y-intercept at -8.
What is the noun of press?
the noun press itself is already a noun. though the word can also be expressed as a verb, (for example: he pressed his face against the glass) it can also be a noun (for example: the incident was not reported to the press).
hope this helps. :)
have a great day! stay safe, happy, and healthy!
What is the solution to the system of equations?
4x + 2y = 1
5x = y - 18
6. (07.09)
Given the functions m(x) = 4x - 11 and n(x) = x - 10, solve m[n(x)] and select the correct answer below. (2 points)
Answer:
4x -51
Step-by-step explanation:
m(x) = 4x - 11
n(x) = x - 10
m[n(x)] = Replace n(x) for x in the function m(x)
= 4 (x-10) - 11
= 4x - 40 -11
= 4x -51
please help 40 points
Answer:
-2 5/9
Step-by-step explanation:
w + (-x) - 2/3
Let w = -5/9 and x = 4/3
-5/9 - 4/3 - 2/3
Get a common denominator
-5/9 -4/3*3/3 -2/3*3/3
-5/9 -12/9 -6/9
Add
-23/9
Change to a mixed number
-2 5/9
9.
Which statement about this figure is true?
Answer:
The answer should be
• It has no rotational symmetry.
Step-by-step explanation:
A rotational symmetry is when the object still looks the same after some rotation.
I hope this helped :)
Find all the real fourth roots of 256/2401:
a. 4/7 and 16/49
b. -4/7 and 4/7
c. 4/7, -4/7, 16/49, and -16/49
d. 4/7
is this relationship a function?
Answer:
no
Step-by-step explanation:
The input of 13 goes to two different outputs
To be a function each input can only go to one output
This is not a function
Pls help I will give crown
Answer:
35 yards
Step-by-step explanation:
The formula for an area of a trapezium or trapezoid is h(a+b)/2. H is the height, and a and b are the the two opposite sides. With substitution, we get 5(6+8)2 = 70/2 = 35
Answer:
35 yd²
Step-by-step explanation:
First, you need to find the remaining side:
You need to find the bottom side of the triangle: 8-6=2 yd
Let's calculate the area of the triangle:
[tex]\frac{5*2}{2} =5[/tex] yd²
Let's calculate the area of the rectangle:
6*5 = 30 yd²
Total area: 30+5 = 35 yd²
Gail is going to buy a new camera. The camera costs $150 plus a 10% sales tax. What is the total price that gail will pay for her new camera
Answer:
$165
Step-by-step explanation:
10%=$15
Answer:
Gail going to pay $165 for his new camera.
Step-by-step explanation:
10% Sales tax+Camera Price=$165
a. List all the factors of 42.
b. What is the greatest common factor of 42 and 15?
C. What is the greatest common factor of 42 and 50?
Ahhhh please help!!!
Find the value of each missing variable. PLS!!!
Answers:
[tex]x = 5\sqrt{3}[/tex]
[tex]y = 10[/tex]
==================================================
Explanation:
This is a 30-60-90 triangle. The short leg 5 is opposite the smallest angle 30 degrees.
The long leg is sqrt(3) times that of the short leg, which explains why x = 5*sqrt(3).
The hypotenuse is twice as long compared the short leg, so y = 2*5 = 10.
You could use trig ratios and the unit circle as another way to find x and y.
Answer:
20023002
Step-by-step explanation:
becease i nee d answers please ignore
Need help FAST NO LINKS please!!!
Answer:
x=√30
Step-by-step explanation:
Because the triangle is equilateral and is cut by the bisector, both triangles are 30-60-90 triangles. Therefore, to find side x, you multiply the short side by √3. This means that side x is √10*√3=√30 units.
What is the equation of the line that is parallel to the line x = -2 and passes through the point (5.4)?
Lines parallel to each others only occur when two slopes of equations are same. The definition of parallel lines is:
[tex] \large \boxed{m_1 = m_2}[/tex]
We are given the equation of a line which is x = -2. For x = a, the equation forms a verical line and has an undefined slope. These below are basic that you may need to learn when learning about the line graph:
y = a —> horizontal line; slope is 0.x = a —> vertical line; slope is undefined.For y = a, any a-values would have same x-values. For example, if we are given y = 2 then any domains or x-values can have the range of 2.For x = a, any a-values would have same y-values or range.Back to the question. We want to find the equation of a line that is parallel to the line x = -2 and passes through (5,4) point. Recall the definition of parallel line that both slopes of equations must equal. Since x = a for any a-values would give an undefined slope. That means our parallel would be x = b.
Because the line passes through (5,4) - for any a-values from x = a would give out the set of all real numbers for range. Therefore the equation of a line is x = 5.
Answer
The equation of a line that is parallel to x = -2 and passes through (5,4) is x = 5.I hope this helps! If you have any doubts or questions, don't hestitate to ask in comment! Good luck on your assignment and have a great day!
I made a mistake while solving the inequality below. What mistake did I make? Explain what I should’ve done instead.
Answer:
Mistakes:
Used addition
Didn't flip inequality form
Corrections:
Divide each term
Instead of a positive value it should be negative
flip the direction of the inequality form
Step-by-step explanation:
[tex] - 9x \div - 9 \leqslant 90 \div – 9 [/tex]
cancel the common factor
[tex] \times \leqslant 90 \div - 9[/tex]
Divide 90 by – 9
Answer is:
[tex] \times \leqslant - 10[/tex]
Hope this helps!
Do anyone know what it is
The Malcolms are taking a trip. Midville is 214 miles
from their home. Walesburg is 3 times as far.
How far is Walesburg from their home?
Answer:
642 miles
Step-by-step explanation:
Distance of Midville from their home = 214 miles
Walesburg is 3 times as far.
How far is Walesburg from their home?
Distance of Walesburg from their home = 3 × Distance of Midville from their home
= 3 × 214 miles
= 642 miles
Distance of Walesburg from their home = 642 miles