Answer:
20x-3y
Step-by-step explanation:
combine the like terms
so first do 10x-2x=8x
then you're gonna add from the line the 10x and the 2x which is going to give you 20x
no finally you are left with one number with the y variable, that is 3y.
Therefore your answer is 20x-3y
Find the area of the given triangle.
A triangle has a height of 15 feet and a base of 10 feet. Another side is 25 feet.
The base (b) of the triangle is
feet.
The height (h) of the triangle is
feet.
The area of the triangle is
square feet.
Answer:
75 squared feet
Step-by-step explanation:
Area=1/2×base ×height
Answer:
The base of the triangle is 10 ft
the height of the triangle is 15 ft
the area of the triangle is 75 square feet
Step-by-step explanation:
Solve for x.Enter the solutions from least to greatest. 3x^2+4=436
Answer:
Step-by-step explanation:
l = [?] ft
9 ft
4ft
PLEASE HELP MEMEMEMEME
2x-14 factorise fully
Answer:
2(x-7)
Step-by-step explanation:
Factor 2x−14
2x−14
=2(x−7)
Answer:
2(x−7)
Convert (4, 3π/2) to rectangular form.
A) (0,4)
B) (0, -4)
C) (-4,0)
D) (4,0)
Answer:
(0, -4)
Step-by-step explanation:
The rectangular form is expressed as;
x = rcos theta
y = rsin theta
Given the coordinate (4, 3π/2)
r = 4
theta = 3π/2
Substitute
x = 4cos3π/2
x = 4cos270
x = 4(0)
x = 0
y= 4sin3π/2
y = 4sin270
y = 4(-1)
y = -4
Hence the required coordinate is (0, -4)
Find the volume of this cylinder. Use 3 for T.
5 ft
12 ft
V [?]ft
IM DESPERATE HELP
Answer:
V=about 900 cubed feet
Step-by-step explanation:
V=pi(5^2)12
V=pi(25)12
V=pi(300)
V is about 900 cubed feet
Brainliest plz?
Answer:
900 ft cubed
Step-by-step explanation:
v=pi*r sqaured* h
The radius is 5 and sqaure 5 to get to 25. Multiply that by pi, which in your case is 3, and you get 25. Then mulitply that by 12, height, and you get your answer is 900.
Lmk if you need more help
Also, to do this on the calulator is easy as well. Just times pi(3 for you) by the raduis twice and then times that by the height. For example, for this question, I just typed in my calculator, 3 times 5 times 5 times 12 and I got 900.
Sorry if this doesn't make sense lol I'm not good at explaining things.
A total of 15000 is invested at an annual percentage rate of 12.5%. Find the accumulated amount after 3 years if it is compounded quarterly.
Answer:
24542.26 is the final balance
PLEASE HELP!!! I don't understand what I'm supposed to do...
Answer:
The scale for the line plot should be 0 to 1, with tick marks every [tex]\frac{1}{8}[/tex]
Hope that this helps!
A linear relationship is shown in the graph.
Which equation best represents the relationship between x and y?
will give brainly
Which sentence contains an error in the use of a restrictive clause?
How could you correct this error?
Unit 2: Sequences
Create a recursive rule and an explicit rule for
the sequence below. Then find the 15th term.
7, 11, 15, 19, ...
Create a recursive rule and an explicit rule for
the sequence below. Then find the 15th term.
3, 12, 48, 192, ...
Recursive Rule:
Recursive Rule:
Explicit Rule:
Explicit Rule:
15th term
15th term:
Answer:
steps below
Step-by-step explanation:
7, 11, 15, 19 ...
common difference (d) = 11-7 = 4
Recursive rule: A(n) = A(n-1) + d = A(n-1) + 4
Explicit rule: A(n) = A(1) + d * (n-1) = A(1) + 4 *(n-1) = 7 + 4 * (n-1) = 4n + 3
15th term: A(15) = 4 * 15 + 3 = 63
What is the sum of 1 1/2 + 4 1/2+ 3 1/2?
Answer:
[tex]9\frac{1}{2}[/tex]
Step-by-step explanation:
[tex]1\frac{1}{2} +4\frac{1}{2} +3\frac{1}{2}[/tex]
[tex]\frac{3}{2} +4\frac{1}{2} +3\frac{1}{2}[/tex]
[tex]\frac{3}{2} +\frac{9}{2} +3\frac{1}{2}[/tex]
[tex]6+3\frac{1}{2}[/tex]
[tex]6+\frac{7}{2}[/tex]
[tex]\frac{19}{2}[/tex]
[tex]9\frac{1}{2}[/tex]
Answer:
[tex]9\frac{1}{2}[/tex] or 9.5
Step-by-step explanation:
1.5 + 4.5 + 3.5 = 9.5
[tex]\frac{3}{2} + \frac{9}{2} + \frac{7}{2} = 9\frac{1}{2}[/tex]
[tex]\huge\boxed{Mark as Brainliest\hookedleftarrow}[/tex]
A rectangle is placed around a semicircle as shown below. The length of the rectangle is 8 cm. Find the area of the shaded region. Use the value 3.14 for at, and do not round your answer. Be sure to include the correct unit in your answer.
PLEASE HELP
Answer:
Area of the shaded region = 6.88 cm²
Step-by-step explanation:
Area of the shaded region = Area of the rectangle - Area of the semicircle
Area of the rectangle = Length × Width
Length of the rectangle = AD = 8 cm
Width of the rectangle = OP = 4 cm [OP, OB and OC are the radii of the circle which are equal in measures]
Area of the rectangle = 8 × 4 = 32 cm²
Area of the semicircle = [tex]\frac{1}{2}\pi r^{2}[/tex]
= [tex]\frac{1}{2}\pi (OP)^{2}[/tex]
= [tex]\frac{1}{2}\pi (4)^{2}[/tex]
= 25.12 cm²
Area of the shaded region = 32 - 25.12
= 6.88 cm²
9.
Identify the vertex of the graph. Tell whether it is a minimum or maximum.
A. (0, –2); minimum
B. (–2, 0); maximum
C. (–2, 0); minimum
D. (0, –2); maximum
Answer:
D. (0, –2); maximum
Step-by-step explanation:
To plot
( 0 , − 2 )
, start at the origin
( 0 , 0 )
and move right
0
units and down
2
units.
( 0 , − 2 )
To plot
( − 2 , 0 )
, start at the origin
( 0 , 0 )
and move left
2
units and up
0
units.
( − 2 , 0 )
To plot
( − 2 , 0 )
, start at the origin
( 0 , 0 )
and move left
2
units and up
0
units.
( − 2 , 0 )
To plot
( 0 , − 2 )
, start at the origin
( 0 , 0 )
and move right
0
units and down
2
units.
( 0 , − 2 )
Which of the following are possible values for x in the equation x^2=90? Choose the TWO correct answers. Options: 30, -9√10, -3√10, 45, √90
Answer: x=3√10 or x=−3√10
Step-by-step explanation:
Let's solve your equation step-by-step.
x2=90
Step 1: Take square root.
x=±√90
x=3√10 or x=−3√10
HELP PLEASE WILL MARK BRAINLIST
Andre can run 2 1/2 miles in 3/4 hour. Find his average speed in miles per hour.
Answer:
3 1/3 miles per hour
Step-by-step explanation:
(5/2 ÷ 3/4) = (s ÷1)
(5/2 ÷ 3/4) = 10/3
10/3 = s/1
cross-multiply:
3s = 10
s = 10/3
s = 3 1/3 miles per hour
Answer:
3 1/3 mph
Step-by-step explanation:
-____________________-
The perimeter of the polygon is_______units.
Answer:
3 units
Step-by-step explanation:
Since the sides are congruent, then
5 - 2x = - 4x + 9 ( add 4x to both sides )
5 + 2x = 9 ( subtract 5 from both sides )
2x = 4 ( divide both sides by 2 )
x = 2
Then
5 - 2x = 5 - 2(2) = 5 - 4 = 1
perimeter = 3 × 1 = 3 units
Glenn has a garden that is shaped like a rectangle.
The perimeter of his garden is 70 1/2 feet.
The length of the garden is 24 3/4 feet.
What is the width of the garden?
21 ft o 11ft o 10 ½ ft o 45 ¾ ft
Answer:
Solution given:
The length of the garden[l] = 24 3/4 =99/4feet.
breadth or width [b]=b
perimeter of his garden = 70 1/2=141/2 feet.
2[l+b]=141/2ft
99/4+b=141/4
b=141/4-99/4
b=21/2
b=10 ½ft
So the width of the garden is 10 ½ft.
Find the value of x. Round to the nearest tenth.
Answer:
x = 10.8
Step-by-step explanation:
Cos∅ = adj/hyp
Cos26 = x/12
Multiply both sides by 12
12 * cos26 = x
Use calculator
10.785528555590004 = x
Round
x = 10.8
Choose the number that makes the comparison true.
85.04 >
85.9
85.006
85.72
85.051
85.08
Answer:
85.006
hope this helps
have a good day :)
Step-by-step explanation:
2. Which of the following is a quadratic function?
O f(x) = 2x + 5
O f(x) = 22
O f() = 0x2 + 3x – 6
Of(x) = 3 - 422
JUAN DECIDE PINTAR LAS PAREDES DE SU CASA UN TOTAL DE 200 METROS LOS DOS PRIMEROS DIAS PINTO 33 METROS CADA DIA AL TERCER DIA COMO TENIA PRACTICA PINTO 96 METROS CUANTOS METROS LE QUEDAN PARA PINTAR
Answer:
38 metros
Step-by-step explanation:
Número total de metros que Juan quiere pintar su casa = 200 m
Durante los primeros 2 días, pintó = 33 m todos los días
Por lo tanto, el número total de metros que pintó = 33 m × 2 = 66 m
Al tercer día, practica la pintura = 96 m
El número de metros que quedan por pintar se calcula como:
200m - (66m + 96m)
Los 200m - 162m
= 38m
Can someone help me please I need area and perimeter
Answer:
Perimeter: 29m
Area: 30m
Step-by-step explanation:
The sum of David and Jacobs age is 39. Two years ago David was four times Jacobs age. How old are three now?
Answer:
David is 30
Jacob is 9
Step-by-step explanation:
The sum of David and Jacobs age is 39
d + j = 39
d = 39 - j
----------------------
Two years ago David was four times Jacobs age
(d - 2) = 4(j - 2)
d - 2 = 4j - 8
d = 4j - 6
---------------------
Set the equations equal
4j - 6 = 39 - j
5j = 45
j = 9
d = 4(9) - 6
d = 30
Use equivalent ratios to find the unknown value.
Answer:
66 is equal to K
Step-by-step explanation:
if 4 times 6 equal 24
then 11 time 6 equals 66
in this case, the scale factor is 6.
Have a wonderful day!
Answer:
K = 66
Step-by-step explanation:
[tex]\frac{k}{24} = \frac{11}{4}[/tex]
when taking a look at this, first try to see if you can solve the denominator.
24 to 4 equals 6 meaning you divide k by 6 will be equal to 11
Then 11 x 6 = 66!!
Mark me as brainliest!!
PLEASE PLEASE PLEASE help me
Answer:
Step-by-step explanation:
i dont know
Aaron is planning to attend a public university after he graduates from high school in 4 years. He is devising a plan to save money each month to help with the expenses of attending the university. The cost of attending the public university for one-year is $42,600. His family has promised to contribute $22,500 each year he is in school. What is the minimum amount of money Aaron must contribute to his savings per month for the next 4 years to have enough money to pay for his first year of tuition?
a
$389.52
b
$418.75
c
$298.35
d
$435.85
Answer:
b, 418.57
Step-by-step explanation:
subtract the total his family is contribution from tuition then divide by total months remaining
please rank brainliest
Which expression could be used to determine the perimeter of the triangle?
A 9x + 4
B 9(x + 4)
C 13x
D 13(x + 1)
Answer:
A. 9x + 4
Step-by-step explanation:
Perimeter of a triangle = side A + side B + side C
Side A = 2.5x + 3
Side B = x + 6
Side C = 5.5x - 5
Perimeter of a triangle = side A + side B + side C
= (2.5x + 3) + (x + 6) + (5.5x - 5)
= 2.5x + 3 + x + 6 + 5.5x - 5
= 2.5x + x + 5.5x + 3 + 6 - 5
= 9x + 4
Perimeter of a triangle = 9x + 4
The correct answer is A. 9x + 4
I need help with this question! I will vote brainliest!
Answer:
1. -10
2. -12x+8
Step-by-step explanation:
hope this helps :)
When solving the equation 4x + 10 = 13x - 10, I should add 4x to both sides of the equation
O True
O False