Answer:
1)
D. 3:2
2)
B. 40%
as, no. of girls=8
total no. of students =12+8=20
now,
percentage of girls=no.of girls/total no. of students ×100%
=8/20×100%
=40%
on a graph there are two points (0,3) and (8,0) what is the proper equation
Answer:
The line equation of the line is:
[tex]y=-\frac{3}{8}x+3[/tex]Step-by-step explanation:
Given the two points
(0,3)(8,0)Finding the slope between (0,3) and (8,0)
[tex]\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}[/tex]
[tex]\left(x_1,\:y_1\right)=\left(0,\:3\right),\:\left(x_2,\:y_2\right)=\left(8,\:0\right)[/tex]
[tex]m=\frac{0-3}{8-0}[/tex]
[tex]m=-\frac{3}{8}[/tex]
Therefore, the slope of the line: m = -3/8
Using the point-slope form of the line equation
[tex]y-y_1=m\left(x-x_1\right)[/tex]
where m is the slope of the line and (x₁, y₁) is the point
substituting the values m = -3/8 and the point (0,3)
[tex]y-3=-\frac{3}{8}\left(x-0\right)[/tex]
[tex]y-3=-\frac{3}{8}x[/tex]
Add 3 to both sides
[tex]y-3+3=-\frac{3}{8}x+3[/tex]
Simplify
[tex]y=-\frac{3}{8}x+3[/tex]
Therefore, the line equation of the line is:
[tex]y=-\frac{3}{8}x+3[/tex]What is greater than 4.026
Answer/Step-by-step explanation:
The number 5 is greater than 4.026
Hope this helps!
Answer:
4.027
Step-by-step explanation:
Just add a number to the problem
What is the lenth of EG
x = 78 + 10 = 88
So the lenght of EG is 88
Answer:
Step-by-step explanation
Multiply 54 + 24 and take the square root of both numbers
AHHH URGENT ANSWER QUICK I GIVE BRAINLIEST
Answer:
20/54
Step-by-step explanation:
I WILL GIVE THE BRAINLYEST ANSWER WHO EVER ANSWRS THIS QUICKLY AND CORRECTLY
Kiera used her calculator to work out the value of a
number x. She wrote down the first two digits of the
answer on her calculator. She wrote down 7.3.
Write down the error interval for x.
Answer:
7.3≤x<7.4
Step-by-step explanation:
please help if you can
Answer:
No its not
hope it helps.
Find the area under the curve y = 1/x^2 between the ordinates x=1 and x=5
Answer:
The area is -6/5 units
Step-by-step explanation:
We start by integrating the curve equation
1/x^2 = x^-2
So the integration will be;
x^-2+1/-2 + 1 = -1/x + k
So we have the area as;
-1/5 -1 = (-1 - 5)/5 = -6/5
-
Pls help I will give BRAINLIEST
Answer: M<2=38 m<3=142 m<4=38
Step-by-step explanation:
142+142+38+38=360-Both side
142+38=180- one side
180-142=38
Answers:
angle 2 = 38 degreesangle 3 = 142 degreesangle 4 = 38 degrees========================================================
Explanation:
Angle 1 is given to be 142 degrees. Angle 3 is equal to this measure since vertical angles are congruent. Vertical angles are angles that form when you have an X shape like this. They are opposite angles.
Angles 2 and 4 are the other pair of congruent vertical angles. This means angle 2 = angle 4.
Note how angle 1 and angle 2 form a straight line. These two angles add to 180.
(angle1) + (angle2) = 180
(142) + (angle2) = 180
angle2 = 180-142
angle2 = 38 degrees
angle 4 is also 38 degrees since angles 2 and 4 are a congruent vertical angle pairing.
Carlos used 2 cups of yogurt and 6 tablespoons of granola for every 4 pears. Would it make sense to describe this situation with a part-to-whole ratio? Explain.
Can I pls get help ?
Answer:
Step-by-step explanation:
b is the answer
There are 68 female teachers and 29 male teachers at Josie's high school. What is the ratio of the number of female teachers to the total number of teachers?
97:68
29:68
97:87
68:97
Not that hard but I did end up confusing myself.
Help please it would mean a lot
Answer:
A
Step-by-step explanation:
At 4 hours they will both cost 450, anything more than that and A will be cheaper
x2=120
solve for the exact variable answer
Answer:
60 ?
Step-by-step explanation:
60×2 = 120. .
when you have a x right behind a number that means multiply
Which steps show how to use the distributive property to evaluate 9.32?
Answer:
D
Step-by-step explanation:
please help find them
1 AB
2 BC
Answer:
AB ≈ 15.7 cm, BC ≈ 18.7 cm
Step-by-step explanation:
(1)
Using the Cosine rule in Δ ABD
AB² = 12.4² + 16.5² - (2 × 12.4 × 16.5 × cos64° )
= 153.76 + 272.25 - (409.2 cos64° )
= 426.01 - 179.38
= 246.63 ( take the square root of both sides )
AB = [tex]\sqrt{246.63}[/tex] ≈ 15.7 cm ( to 1 dec. place )
(2)
Calculate ∠ BCD in Δ BCD
∠ BCD = 180° - (53 + 95)° ← angle sum in triangle
∠ BCD = 180° - 148° = 32°
Using the Sine rule in Δ BCD
[tex]\frac{BC}{sin53}[/tex] = [tex]\frac{BD}{sin32}[/tex] = [tex]\frac{12.4}{sin32}[/tex] ( cross- multiply )
BC × sin32° = 12.4 × sin53° ( divide both sides by sin32° )
BC = [tex]\frac{12.4sin53}{sin32}[/tex] ≈ 18.7 cm ( to 1 dec. place )
what is the area of 4 1/2 feet wide and 6 1/2 feet long
Answer: 29 1/4
Step-by-step explanation:
Multiply and simplify to 29 1/4
how do you find the volume of a cylinder describe which measurements of the cylinder you need to know
Answer:
To calculate the volume of a cylinder, you need to know its height and the area of its base. Because a cylinder is a flat-top figure (a solid with two congruent, parallel bases), the base can be either the top or bottom
Step-by-step explanation:
Answer:
Give other person brainlyest :D
Step-by-step explanation:
TIME REMAINING
02:44:42
The minimum of the graph of a quadratic function is located at (-1, 2). The point (2, 20) is also on the parabola.
Which function represents the situation?
O f)=x+ 1 +2
O f)=(x-1 +2
O ) = 2(x+ 1) +2
O f)= 2(x- 1 +2
Answer:
he's right its c
Step-by-step explanation:
on edg
The correct function which represents the situation is,
⇒ f (x) = 2 (x + 1)² + 2
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Given that;
The minimum of the graph of a quadratic function is located at (-1, 2). The point (2, 20) is also on the parabola.
Now, By options;
The correct function has a point (2, 20).
Hence, It can satisfy the equation of parabola.
Now, By option 3;
⇒ f (x) = 2 (x + 1)² + 2
⇒ 20 = 2 (2 + 1)² + 2
⇒ 20 = 2 (9) + 2
⇒ 20 = 18 + 2
⇒ 20 = 20
Hence, The correct function which represents the situation is,
⇒ f (x) = 2 (x + 1)² + 2
Learn more about the mathematical expression visit:
brainly.com/question/1859113
#SPJ7
A city stretches for 480,000 meters in its greatest dimension. The mayor is having a model of the city created. The
model will be 100,000 times smaller than the actual city. How big will the model be in its greatest dimension?
Answer:
4.8
Step-by-step explanation:
took test
The model of the city would be 4.8 meters in its greatest dimension.
What is Division method?Division method is used to distributing a group of things into equal parts. Division is just opposite of multiplications.
For example, dividing 20 by 2 means splitting 20 into 2 equal groups of 10.
Given that;
A city stretches for 480,000 meters in its greatest dimension.
And, The model will be 100,000 times smaller than the actual city.
Hence, To find out the size of the model in its greatest dimension, we need to divide the actual size of the city by the scale factor.
Therefore, the size of the model in its greatest dimension would be;
⇒ 480,000 meters ÷ 100,000
⇒ 4.8 meters
Thus, the model of the city would be 4.8 meters in its greatest dimension.
Learn more about the divide visit:
https://brainly.com/question/28119824
#SPJ2
Cheryl took her family to the movies and purchased 3 child tickets and 4 adult tickets for $69. Tyrone purchased 3 adult tickets for $36. Let x represent the cost of a child ticket (in dollars) and y represent the cost of an adult ticket (in dollars). Use a graph to find the cost of a child movie ticket and the cost of an adult movie ticket.
Answer:
Child ticket = $7, adult ticket = $12Step-by-step explanation:
3 child tickets and 4 adult tickets for $69:
3x + 4y = 693 adult tickets for $36:
3y = 36Graph is attached
As per graph, x = 7, y = 12
Child ticket = $7, adult ticket = $12
Abdul can type 23 words per minute. Abdul has a 500-word essay to type for his English teacher. How long will it take him to type it? Round your answer to the nearest minute.
pleaseeee
Answer:
22 minutes. (rounded)
Step-by-step explanation:
Ok so what your going to do is just divde.
You divide and get 21.7
So round it and you will get 22 minutes.
Please help, I have no clue what I’m doing
Answer: x= negative 6
if thats what its asking for
Step-by-step explanation:
Nita simplified the equation in problem 8 to 1.8 = 1.2x.
How did she get that? Is this a valid way to solve the
equation? Explain.
Answer:No
Step-by-step explanation: No,this is not an valid way to solve the equation because you can’t multiply 1.2 with anything to get 3
how do i use the substitution method for these equations
y=3x+4
y=5x+12
Answer:
hello there mate
Step-by-step explanation:
HELP ME PLEASE
Use the table to answer the question.
Avocados Price
$1.15
$2.30
$5.75
$11.50
1
2
5
10
How much will 3 avocados cost?
O $1.15
O $3.45
O $4.45
O $4.60
one Avocado costs 1.15 you need 3
1.15×3=3.45
50 points!! Look at both pics attached! I need this done ASAP! Put random answers and I will report you
Answer:
For the first: [tex]x=-23[/tex] and [tex]x=17[/tex]
For the second: [tex]x=5[/tex]
Step-by-step explanation:
Answer:
x=17 for the first and x=5 for the second.
Step-by-step explanation:
First picture
Opposite angles of two intersecting lines are equal.
So the angle opposite the 100 degree angle on line c is also 100.
Since a, b, and c are all parallel, the angles made by the intersecting line r, are also all equal (these are corresponding angles).
So 5x + 15 = 100
5x = 85
x = 17
Second picture
Adjacent angles add up to 180 degrees. So the angle opposite 52 is 180-52=128.
[tex]2^{2x-3}=128\\\\2x-3 = 7\\2x = 10\\x=5[/tex]
Why do you think the two empires did not last very long?
Answer:
What two empire?
Step-by-step explanation:
What is the slope of the function below?
y=3x+5 please help!!!
Tables
Х
у
6
4
8
12
12
24
16
30
Proportional
Not Proportional
Answer:
it's not proportional ...
please thnx my answer..
help help help PLS TY