Answer:
Proof:
In ΔCDB
∵ The sum of all angles of triangle = 180°
∴ m∠B + m∠C + m∠D = 180°
R3. Their sum = 180 (They form straight angle)
S4. ∠B + ∠A = 180°
R5. Triangle angle sum theorem (Sum of all angles of triangle = 180°)
Which of the following best represents the solution to this system (3x+2y<2
Answer:
y < (2 - 3x)/2.
Step-by-step explanation:
(3x+2y)<2
2y < 2 - 3x
y < (2 - 3x)/2
The ratio of students who wear glasses to the total class is 2:5
a. What is the ratio of student who wear glasses to those who don't in simplest form?
b. If there are 15 students who don't wear glasses, how many students are in the class?
students
c. If 5 of the students who didn't wear glasses now do, what is the ratio of students who wear glasses
to those who don't in simplest form?
Answer:
a. 2:3, b. 25 students, c. 3:2
Step-by-step explanation:
a. 5 (total) - 2 (with glasses) = 3 (without glasses), making the ratio 2:3.
b. We can assign the total students with the variable x. 3:5=15:x, 75=3x, x=25. 25 total students.
c. 25 (total students) - 15 (without glasses) = 10 (with glasses). (10+5):(15-5) is 15:10, which, when simplified, equals to 3:2.
Which graph represents the following relationship between X and y. Y=3x
Answer:
B
Step-by-step explanation:
Because each Y value is found by multiplying X value by 3
What is the greatest common factor of 8m2, 4m, and 10m4?
Answer:
2m²
Step-by-step explanation:
Apply the prime factorization method: 2³m², 2 · 5m⁴
Find the greatest common divisor: 2m²
Answer: 2m²
Can you guys tell me the answer to this question?
Answer:
I get the answer 52°......................
1 4/5 x 7 1/5 help mee
Answer: 355/70? correct me if im wrong :-)
Step-by-step explanation:
Please answer for last question
Step-by-step explanation:
since you know already that it is a linear equation with a constant change rate (slope), you don't know the equation itself yet ?
you found the change rate (slope).
it is x goes up by 2, and y goes down by 6.
the slope is the ratio y/x representing the y and x changes, and it is always the factor of x.
"down" or "left" means "-","up" or "right" means "+".
the slope here is therefore
-6/2 = -3/1 = -3
so, we know the line function looks like
y = -3x + b
to get b we use one of the x y pairs like (1. 4)
4 = -3×1 + b
7 = b
and the full line function is
y = -3x + 7
please help if you dont know dont answer!!!
Answer:
(6,3), (10,5),(14,7)
Step-by-step explanation:
6/3 = 2
10/5 = 2
14/7 = 2
Solve each division problem, and classify it based on its quotient.
Answer:we are not your servers to that i should solve this problems
Step-by-step explanation:
Answer:
I have no idea? the first is 11 the second is 5 the three is 11 again the last 2 are 1
Step-by-step explanation:
You collect a total of $75 in donations from three people. The three donations are in the ratio 4 : 4 : 7.
Answer:
20 20 35
Step-by-step explanation:
4+4+7 then divide by 75 whatever answer you get multiplyy by the 4 or the other 4 or the 7
How do I solve 5x - 4x^2
Answer:
If you are asking,
5x - 4x^2=0
x(5-4x)=0
Either,
x=0
or,
5-4x=0
x=5/4
If factor,
5x - 4x^2
x(5-4x)
If difference,
5x - 4x^2
The same as they are not like terms.
given that m 2 = 56 in the diagram what is m 8
A 134
B 66
C 124
D 56
Rewrite the following equation in slope-intercept form.7x − 15y = –18
Answer:
Y = 7/15x + 6/5
Step-by-step explanation:
7x - 15y = -18
7x = 15y - 18
7x + 18 = 15y
7/15x + 6/5 = y
Hope this helps! Pls give brainliest!
We can convert the line 7x − 15y = –18 into slope-intercept form (y = mx + c) by making y the subject of the equation
7x - 15y = - 18
7x + 18 = 15y
⁷/₁₅ x + ¹⁸/₁₅ = y
∴ the slope-intercept form of 7x − 15y = –18 is y = ⁷/₁₅ x + ⁶/₅
A sample of gold has a mass of 579 g. The volume of the sample is 30 cm3. What is the density of the gold sample?
The density of the gold sample is 19.3g/cm³
Let the mass of the gold sample be represented by m
m = 579 g
Let the volume of the gold sample be represented by V
V = 30 cm³
Let the density of the gold sample be represented by ρ
The formula for the density is:
[tex]Density = \frac{Mass}{Volume}[/tex]
[tex]\rho = \frac{m}{V} \\\rho = \frac{579}{30} \\\rho = 19.3 g/cm^3[/tex]
The density of the gold sample is 19.3g/cm³
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please if you can i urgently need help thank you very much
Answer:
1/4
Step-by-step explanation:
2^7/2^9 = 1/2^2
Tell whether the ordered pair (2, 5) is a solution of the system of linear equations.
x + y = 7
2x – 3y = -11
5/8-(1/4) to the power of 2
Answer:
[tex]\frac{9}{16}[/tex]
Step-by-step explanation:
[tex]\frac{5}{8}[/tex] - [tex](\frac{1}{4}) ^{2}[/tex]
= [tex]\frac{5}{8}[/tex] - [tex]\frac{1}{16}[/tex]
= [tex]\frac{10}{16}[/tex] - [tex]\frac{1}{16}[/tex]
= [tex]\frac{9}{16}[/tex]
Evaluate for a:
69 = 13 - 7/12a
Answer:
-96
Step-by-step explanation:
69-13=13-7/12a-13
56=-7/12a
56 times 12=-7/12 times 12
672=-7a
Move negative over
-672=7a
-672/7=a
a=-96
what is the equation of the line that passes through the point(-5,-4) and has a slope of -3/5?
Answer:
y= mx+c
-4= -3/5(-5) + c
-4= -3/5 *-5+ c
-4=3+c
-4-3=c
-7=c
therefore the equation of the line is y=-3/5x-7
Step-by-step explanation:
the equation of a line is
y=mx +c
where y is the y coordinate
where m is the slope
where x is the x coordinate
where c is the y- intercept
find f'(x)of f(x)=x^2-6x
Answer:
[tex]f(x) = {x}^{2} - 6x \\ {f}^{'} (x) = 2x - 6 \\{f}^{'} (x) = 2(x - 3)[/tex]
Heba ate 1/12 of a box of cereal. Now the box is 3/4 full
What fraction of a full box was there before Heba ate?
Answer:
5/6
Step-by-step explanation:
1/12 + 3/4 = 9/12
9/12 + 1/12 = 10/12
simplify 10/12
= 5/6
Please Answer correctly
Answer:
I Think 2.
Step-by-step explanation:
If im correct pls give brainliest im tired thx! :D
[tex]\huge\fbox\orange{A} \huge\fbox\red{N}\huge\fbox\blue{S}\huge\fbox\green{W}\huge\fbox\gray{E}\huge\fbox\purple{R}[/tex]
[tex]\huge\underline\mathsf\colorbox{white}{2}[/tex]
[tex]\huge\underline\mathtt\colorbox{cyan}{I'm Sure}[/tex]
[tex]\huge\mathsf\colorbox{white}{}[/tex]
describe system of linear equations using practical situation and mathematical expressions
pahelp pooo
Answer:
A system of linear equations is a collection of two or more linear equations, and a solution to a system of linear equations consists of values of each of the unknown variables in the system that satisfies all of its equations, or makes them true.
what is the equivalent value
1/2×6
Answer:
3
Step-by-step explanation:
Answer:
3Step-by-step explanation:
what is the equivalent value
1/2×6?
1/2 * 6 =
3
the length and breadth of a piece of land are 20meters and 15 meters respectively. What is the perimeter of this land?
Answer:
20x15=300
When you need to calculate the Length and Width of a piece of land or anything else, all you need to do is multiply the two numbers.
Step-by-step explanation:
When you have 20 units of land in as the length and 15 units of land as width, then you should multiply.
2x4=?
When you do 2x4, you have to do 2+2+2+2=
but, here, you have a piece of land to calculate, so basically, you have to multiply still. In that way, you will be able to get what 20 and 15's product is.
I'm sorry, sometimes I just can't explain that well, but just remember, in these types of problems, just multiply, that is your answer.
Thank You! I hope I made your day just a little better!
Have a great time studying!
Mrs. Larsen wants to get some markers for her class. She notices that they come in boxes of
8.
Write an equation that shows how the total number of markers Mrs. Larsen gets, y, depends
on the number of boxes she buys,X.
y =
(i’ll crown brainliest to whoever answers first, i don’t need the explanation just the answer and how i’m supposed to write it out)
Answer:
y=8x
Step-by-step explanation:
hubsdgvgcsvya
The equation that shows that the total number of markers Mrs. Larsen gets y depends on the number of boxes she buys x, will be;
⇒ y = 8x
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;
Mrs. Larsen wants to get some markers for her class.
She notices that they come in boxes of 8.
Now,
Let total number of markers = y
And, Number of boxes = x
Here, She notices that they come in boxes of 8.
So, We can formulate;
⇒ y = 8x
Thus, The equation that shows that the total number of markers Mrs. Larsen gets y depends on the number of boxes she buys x, will be;
⇒ y = 8x
Learn more about the mathematical expression visit:
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#SPJ2
CAN SOMEONE PLZ HELP WITH 6 I WILL MARK YOU BRAINLIEST!!!!!
Answer: I dont see anything....
Step-by-step explanation:
helppppppppppppppppppppppppppppppppppppppppppp sorry for that
Answer:
a)2 * 2 = 4
b)2 * 3/2 = 3
c) 20 * 3/2 = 30
d) 100 * 8/5 = 160
e)473*1/100=4.73
f)111*1/100=1.11
Answer:
answers are written
Step-by-step explanation:
2xx671.0a
=
670
rounded to the nearest 10
b
=
72.7
rounded to 1 DP
Find the minimum (to 2 DP) of
a
÷
b
Answer:9.22
First, 670 rounded to the nearest ten is:
670
Second, 72.7 rounded to 1DP is:
well, 72.7
a÷b is:
9.2159
9.22 (2 DP)
in a class of 80 students 3/4 study biology and 3/5 study physics. if each student studies at least one of the subjects. (1) Draw a venn diagram to represent this information. (2) how many students study both subjects (3) find the fraction of the class that study Biology but not physics
According to the calculations made, 28 students study both subjects, and 1/2 of the class studies biology but not physics.
Given that in a class of 80 students 3/4 study biology and 3/5 study physics, to determine, if each student studies at least one of the subjects, how many students study both subjects, and find the fraction of the class that study Biology but not physics, the following calculation must be performed:
Biology: 80 x 3/4 = X 80 x 0.75 = X 60 = X Physics: 80 x 3/5 = X 80 x 0.60 = X 48 = X 60 + 48 - 80 = X 108 - 80 = X 28 = XTherefore, 28 students study both subjects.
68 - 28 = 40 80 = 1 40 = 1/2Therefore, 1/2 of the class studies biology but not physics.
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