Answer:
32
Step-by-step explanation:
What is the boundary line for the linear inequality 4x + 2y < 18?
Answer:
Simplifying
x = 4.5 + -0.5y
Step-by-step explanation:
The boundary line of the inequality is intersecting the x-axis at 4.5.
The given inequality is 4x + 2y < 18.
What is the boundary line for linear inequality?A linear inequality divides the coordinate plane into two halves by a boundary line where one half represents the solutions of the inequality. The boundary line is dashed for > and < and solid for ≤ and ≥. The half-plane that is a solution to the inequality is usually shaded.
Graph the inequality by finding the boundary line, and then shading the appropriate area.
Now, 4x + 2y < 18 can be written as y<−2x+9.
The boundary line of the inequality is given below.
The boundary line of the inequality is intersecting the x-axis at 4.5.
To learn more about the inequalities visit:
https://brainly.com/question/17675534.
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What is the area for this?
Answer:
120 in²
Step-by-step explanation:
rectangle = 16x4=64
two triangles 1/2(8)(7)=28 each
64+28+28=120
Answer:
88
Step-by-step explanation:
Starting off with 16x4, which isolates the triangle and makes it a little bit easier, you'd get 64, which is the rectangle's area, (I got the 4 from the middle piece). That leaves you with the triangle, which I did 3x8 for, which is 24, usually with triangles you would divide that answer in half because a triangle is only half of the actual area, but since they're two identical triangles, it wasn't necessary.
the mean weight of 100 students in a certain class is 71kg the mean weight of boys is 65kg and that of girls is 75kg what is the number of boys and girls
Answer:
There are 60 girls and 40 boys in the class.
Step-by-step explanation:
Given that the mean weight of 100 students in a certain class is 71kg, while the mean weight of boys is 65kg and that of girls is 75kg, to determine what is the number of boys and girls the following calculation must be performed:
1 x 75 + 0 x 65 + 75
0.9 x 75 + 0.1 x 65 = 74
0.8 x 75 + 0.2 x 65 = 73
0.7 x 75 + 0.3 x 65 = 72
0.6 x 75 + 0.4 x 65 = 71
Thus, there are 60 girls and 40 boys in the class.
The total budget for a school fundraiser is $350. Supplies and refreshments cost $140. The band for the event charges $70 each hour. What is the number of hours the school can have the band play?
Which equation represents the situation?
Answer:
I think its 3 hours
Step-by-step
also I think its the last one
12b – 5 = 3
What is b and how do you solve for it
Answer:
12b - 5. = 3
+5 +5
12b = 8
÷12. ÷12
b = 0.6
9 and 7 find the length of the third side
Answer:
x = √130
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of EqualityTrigonometry
[Right Triangles Only] Pythagorean Theorem: a² + b² = c²
a is a leg b is another leg c is the hypotenuseStep-by-step explanation:
Step 1: Define
Leg a = 9
Leg b = 7
Hypotenuse c = x
Step 2: Solve for x
Substitute in variables [Pythagorean Theorem]: 9² + 7² = x²[Hypotenuse] Rearrange: x² = 9² + 7²[Hypotenuse] Evaluate exponents: x² = 81 + 49[Hypotenuse] Add: x² = 130[Hypotenuse] [Equality Property] Square root both sides: x = √130Solve the second equation to find the coordinate of point B. Show your work step by step. (2 points) 2.5= -2B+6
Answer:
1.75
Step-by-step explanation:
-2b+6 = 2.5
-2b = 2.5-6
-2b = -3.5
b = -3.5 \ -2
b = 1.75
What is the 7th term in the following sequence? 48,40,32,24
Brainless answer !!!!!
Answer:
-8
Step-by-step explanation:
an=−8n+56
Identify which sequence of transformations could map
pentagon ABCDE onto pentagon A'B'C'D"E", as shown below.
B
D
A
E
A
ES
B
D
1) line reflection followed by a translation
0
2) translation followed by a rotation
3) dilation followed by a rotation
4) line reflection followed by a line reflection
Answer:
can you ask the qustion better plz
Step-by-step explanation:
The cost of renting a sailboat at a lake is $70
Answer:
y=70x+12
Step-by-step explanation:
y= amount of total money spent
x= amount of hours
How to find the missing numbers in two digit division
Answer:
Divide the first number of the dividend (or the two first numbers if the previous step took another digit) by the first digit of the divisor. Write the result of this division in the space of the quotient. Multiply the digit of the quotient by the divisor, write the result beneath the dividend and subtract it.Jun
Step-by-step explanation:
pls brainlist
What quadrilateral's diagonals are perpendicular and they bisect each other?
Answer:
Rhombus
Step-by-step explanation:
The diagonals of Rhombus bisect each other and form 4 right triangles. Since they are right triangles, they measure 90 degrees so the diagonals are perpendicular.
Write an equation of the line that passes through the points (−6,20) and (0, 8).
Answer:
y = -2x + 8
Step-by-step explanation:
(−6, 20) and (0, 8)
First you want to find the slope of the line that passes through these points. To find the slope of the line, we use the slope formula: (y₂ - y₁) / (x₂ - x₁)
Plug in these values:
(8 - 20) / (0 - (-6))
Simplify the parentheses.
= (-12) / (6)
Simplify the fraction.
-12/6
= -2
This is your slope. Plug this value into the standard slope-intercept equation of y = mx + b.
y = -2x + b
To find b, we want to plug in a value that we know is on this line: in this case, I will use the second point (0, 8). Plug in the x and y values into the x and y of the standard equation.
8 = -2(0) + b
To find b, multiply the slope and the input of x(0)
8 = 0 + b
b = 8
Plug this into your standard equation.
y = -2x + 8
This is your equation.
Check this by plugging in the other point you have not checked yet (-6, 20).
y = -2x + 8
20 = -2(-6) + 8
20 = 12 + 8
20 = 20
Your equation is correct.
Hope this helps!
HELP!!! THIS IS DUE AT 11:59!
Answer:
1. x = 22
2. x = 38
3. x = 24
Step-by-step explanation:
Uhhhhhh
Triangle ABC is similar to Triangle XYZ.
Solve for x and y
Twenty five percent of this square is shaded what percent of the square is not shaded
Answer:
75%
Step-by-step explanation:
If 25 percent of a square is shaded, that means that the rest of the square is not shaded. We want an answer that we can add to 25 to get 100. So this means that 75% of the square is not shaded.
What is the face value of 2 in the number 286?
Answer:
200 or 2 I guess
Step-by-step explanation:
Ion really get wym by “ what is the face”
If 1,560 students are enrolled in school and 85% ride the bus how many dont ride the bus
Answer:
234 student don’t ride the bus
Step-by-step explanation:
jst do 0.85 tiimes 1560
Answer:
234
Step-by-step explanation:
85% of 1,560 = 1326
1,326 - 1,560 = 234
can smby plz help me ?!
9 1/4 - 3/4 =
6 4/9 - 3 11/12 =
3 11/15 - 1 5/6 =
4 5/14 - 3 17/21
Answer:
8 1/2
2 19/36
1 9/10
23/42
14 minus a number equals the same number plus 8
A) x= 4 b) x=5 C) x=7 D) x=3
Answer:
b- x=5
Step-by-step explanation:
14-5=8 so your answer would be b
Simplify fully
8n
—
10n
Answer:
The answer is 4/5
Step-by-step explanation:
Simplify the expression.
Hoped this helped!
Brainly, please?
Answer: 4/5
Step-by-step explanation: 8n/10n
8/10
4/5
What is the percentage plz help me with this Question.
Answer:
percentage is a number or ratio expressed as a fraction of 100.
Step-by-step explanation:
what is 9 to 8 to simplest
3 and 4 is the lcd
lcd means least common factor
simpleest it ¾ the answer
Answer:
3/4 hope its helpssssssss
What is the surface area of the pyramid formed from the net shown here? The triangles are equilateral, and each triangle has a height of 5.2 centimeters. Write your answer rounded to one decimal point and with the correct unit. the base is 6 cm
Answer:
62.4
Step-by-step explanation:
Which is the last operation performed when evaluating (8 minus 2 x) squared + 4 for x = 3? addition multiplication subtraction applying the exponent
Answer:
addition
Step-by-step explanation:
Answer:
Addition
Step-by-step explanation:
PEMDAS: Parentheses, Exponent, Multiply, Divide, Add, Subtract. (The multiply and divide can be swapped, as well as the add and subtract :3) Hope this helps! :D
Looking out for me balcony the angle of elevation to the top of the next building is approximately 22° in the English depression to the bottom of the building approximately 29° if the building is 200 feet away how tall is the building?
Answer:
24.63 meters
Step-by-step explanation:
m
1. 25
2. 80
3. 90
^answers^
Evaluate 4x + 5y, when x = 7 and y = 10
Answer:
78
Step-by-step explanation:
4 x 7 = 28
5 x 10 = 50
50 + 28 = 78
Which expression is equivalent to 7z + 7z?
Answer:
[tex]14z[/tex]
Step-by-step explanation:
Since these are like-terms, they can be added together.
7z + 7z = 14z