Answer:
[tex]\displaystyle 2x^2 + \frac{x}{2} - \frac{5}{2}[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Terms/CoefficientsExpand by FOIL (First Outside Inside Last)Step-by-step explanation:
Step 1: Define
[tex]\displaystyle (2x + \frac{5}{2})(x - 1)[/tex]
Step 2: Expand
[Trinomial] FOIL: [tex]\displaystyle 2x^2 - 2x + \frac{5}{2}x - \frac{5}{2}[/tex][Trinomial] Combine like terms: [tex]\displaystyle 2x^2 + \frac{x}{2} - \frac{5}{2}[/tex]Someone plz help me I will give brainliest
Answer:
2.25x2+2x1.00+1.50=8, 10-8 =$2.00
Step-by-step explanation:
Answer:
5.5
Step-by-step explanation:
6. A quadrilateral ABCD is drawn to circumscribe a circle. Prove that AB + CD = AD + BC.
Answer:
i not sure sorry ..........
Find the value of from the following right triangle.
plzzz help i will mark you as brainliest
Answer:
12
Step-by-step explanation:
by Pythagoras theorem,
P²+B² =H²
5²+B²=13²
B²= 13²-5²
B²= 169-25
B²= 144
B=√144
B= 12
I need a bit of help you don’t have to do all of them but put which # your doing please and thank you if you do answer all thank you
Answer:
1. 26
2. 15
3. 14
4. [tex]\sqrt{50}[/tex] or [tex]5\sqrt{2}[/tex]
5. [tex]\sqrt{11} \\[/tex]
6. [tex]\sqrt{245}[/tex] or [tex]7\sqrt{5}[/tex]
I think most of these answers are correct
When solving an equation, Francesca's first step is shown below. Which property
justifies Francesca's first step?
Original Equation:
- 2x + 2 = -4
First Step:
-2x = -6
The property justifies Francesca's first step is subtracting 2.
Here,
Original Equation is,
- 2x + 2 = -4
First step is,
-2x = -6
What is the equation?
An equation is made up of expressions that equal each other.
Now,
Original Equation is,
- 2x + 2 = -4
For find the first step;
-2x + 2 -2 = 4 - 2
-2x = -6
Hence, The property justifies Francesca's first step is subtracting 2.
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Write an equation in slope-intercept form of a line with a slope of -2 that goels through the point (4 , 2)
Answer:
y=-2x+10
Step-by-step explanation:
Find the slope of the line that passes through the points A (0, 2) and B (4, –1).
Use the formula (y2 - y1) / (x2 - x1)
Answer:
-3/4
Step-by-step explanation:
y2-y1/x2-x1 =
-1-2/4-0=
-3/4
MORE KHAN ACADEMY! HELP ME PLEASE!
6/3+(-1/6)=?
Answer:
[tex]1\frac{5}{6}[/tex]
Step-by-step explanation:
6/3 + (-1/6) = 2 + (-1/6) = 2 - 1/6 = [tex]1\frac{5}{6}[/tex]
Answer:
If these are fractions the answer is 1 5/6
If they are not fractions the answer is 1.83
Marco's height is 63 inches. Marco's height is 3 inches less than 1.5 times Jennifer's height. What is Jennifer's height in inches? 40 in. B 44 in. C 64.5 in. D 58.5 in.
Answer:
B. 44 in.
Step-by-step explanation:
Let Jennifer's height be x inches, then:
1.5x - 3 = 63
1.5x = 66
x = 66/1.5
= 44 in.
answer correctly=brainliest
What is 12-(a x3)+1 if a=3
Answer:
4
Step-by-step explanation:
12-(3×3)+1
do the multiply first
3×3=9
so,
12-9+1 = 4
plz will mark as brainliest
Answer:
30
Step-by-step explanation:
1/2 x (a+b) x h = area
1/2 x ( 40 + x ) x 50 = 1750
1/2 (40 + x )= 1750/50
20 + 1/2x = 35
1/2 x = 35 - 20
x = 15 x 2
= 30
I hope this is right :)
YOU AINT GOT THE ANSWERS MAN IMAO
Determine the value of x and y in the following systems of equations. 3x+y=9 x-y=-1
Answer:
x=2, y=3. (2, 3).
Step-by-step explanation:
3x+y=9
x-y=-1
-------------
4x=8
x=8/4=2
2-y=-1
y=2-(-1)=2+1=3
Write an equation with a slope of −4.4and a y-intercept of 6.8
A. =−4.4−6.8
B. =4.4+6.8
C. =6.8−4.4
D. =−4.4+6.8
Answer:
The answer is
[tex]y = - 4.4x + 6.8[/tex]
in triangle ABC with vertices A(4,5),B(-2,1) and C(0,3),E and F are midpoints of sides AB and AC resp . then, find coordinates of E and F
Answer:
The answer is
E=(1, 3)
F=(2,4)
Step-by-step explanation:
When E is midpoint of AB
Then
[tex]e = ( \frac{4 + ( - 2)}{2} . \frac{5 + 1}{2} ) \\ = (1.3)[/tex]
By this way we can find F
[tex]f = ( \frac{4 + 0}{2} . \frac{5 + 3}{2} ) \\ = (2.4)[/tex]
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A scuba diver descends 80 feet, rises 25 feet, descends 12 feet, and then rises 52 feet where he will do a safety stop for five minutes before surfacing. At what depth did he do his safety stop?
Answer:
15 ft
Step-by-step explanation:
At 15 feet below the surface, the scuba diver did his safety stop.
What is the surface?The surface is the common region between two different mediums. Here in the question surface is the common region between seawater and above seawater.
Let us denote the values of descending by negative sign and rising by positive sign and we sum up all the values together.
∴ [ - 80 + 25 + (-12) + 52 ] feet.
= (-80 + 25 - 12 + 52) feet.
= - 15 feet.
So, at 15 feet below the surface the scuba diver dis his safety stop.
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(5a²+4b³)³=
(2xy-1)³=
(3m-2n)=
(f+5)³=
Answer:
(5a²+4b³)³= 64b^9+240a^2b^6+300a^4b^3+125a^6
(2xy-1)³= 8x^3y^3−12x^2y^2+6xy−1
(3m-2n)= 0
(f+5)³= f^3+15f^2+75f+125
Step-by-step explanation:
(5a²+4b³)³ = [tex]64b^{9} + 240a^{2} b^{6} + 300a^{4} b^{3} + 125a^{6}[/tex]
(2xy-1)³ = [tex]8x^3y^3 - 12x^2y^2 + 6xy - 1[/tex]
(3m-2n) = 3m - 2n
(f+5)³ = [tex]f^3 + 15f^2 + 75f + 125[/tex]
8.
50 in.
Write an expression for the perimeter in simplest radical
form
V8 in.
V8 in.
V18 in.
I a) 2V21 in.
I b) 12v2 in.
I c) 218 + 8V2 in.
d) They aren't like terms
Answer:
Do you want the perimeter of this shape?
can u help me please
Answer:
1. B
2. C
3. D
4. A
Step-by-step explanation:
You measure 3 inches between your house and the movie theater. How many miles is in from your house to the movie theater?
Answer:
4.734 * 10^-5 miles
Step-by-step explanation:
Given that:
Distance between House to movie theater = 3 inches
Expressing the distance in miles :
Converting inch to miles
1 inch = 1.578 * 10^-5 miles
3 inches = (3 * 1.578*10^-5)
3 inches = 4.734 * 10^-5 miles
Seven less than the product of 6 and a number is equal to 8 translates to an equation
Answer:
Answer: No it isn't an equation. Not yet at least.
Step-by-step explanation:
Yes it might well do, but if it does, it needs something on the other side of wherever you put the equal sign.
6x - 7 is all you have so far and you have no idea what comes next. As it is, what you wrote is an algebraic expression.
can someone help me? Am confused
Select the correct answer.
The city mayor wants to use the reserved section of a rectangular park for gardening lessons conducted by the city public school. The rest of the park will be turned into a lawn. What will the area of the lawn be?
A.
168 square feet
B.
224 square feet
C.
280 square feet
D.
448 square feet
Noah and Lin are marketing paper cones to hold popcorn to hand out at parent math night. They want the cones to hold 9 cubic inches of popcorn. What are two different possible values for height h and radius r for the cones?
if h=3, then r=
if r=2, then h=
Answer: r = 1.69 inches
h = 2.15 inches
Step-by-step explanation: Volume of a solid is the amount of space contained within a solid.
Volume of a cone is directly proportional to radius and height:
[tex]V=\frac{1}{3}\pi r^{2}h[/tex]
They want the cones to hold the same volume of 9 cubic inches.
If height is 3:
[tex]9=\frac{1}{3}\pi r^{2}3[/tex]
[tex]\pi r^{2}=9[/tex]
[tex]r^{2}=2.864[/tex]
r = 1.69 inches
When height is 3, radius is 1.69 inches for a cone to have 9 cubic inches of volume.
If radius is 2:
[tex]9=\frac{1}{3}\pi (2)^{2}h[/tex]
[tex]h=\frac{9(3)}{4 \pi}[/tex]
h = 2.15 inches
If radius is 2 inches, height of the cone is 2.15 inches.
Which correctly explains the number of solutions of the following system of linear
equations?
- 3x + 3y = 12
y = x + 4
А The graphs of the equations are parallel lines because they have the same slope
but different y-intercepts. The system has no solution.
B The graphs of the equations are lines that intersect at one point because the
equations have the same slope but different y-intercepts. The system has
exactly one solution.
с
The graphs of the equations are lines that intersect at one point because the
equations have the same slope and same y-intercept. The system has exactly
one solution.
D The graphs of the equations are the same line because the equations have the
same slope and same y-intercept. The system has infinitely many solutions.
Answer:
D I dont know if im right though
Step-by-step explanation:
The system of equations are same and graphs of the equations are the same line because the equations have the same slope and same y-intercept. The system has infinitely many solutions.
What is an Equation of a line?The equation of a line is expressed as y = mx + b where m is the slope and b is the y-intercept
And y - y₁ = m ( x - x₁ )
y = y-coordinate of second point
y₁ = y-coordinate of point one
m = slope
x = x-coordinate of second point
x₁ = x-coordinate of point one
The slope m = ( y₂ - y₁ ) / ( x₂ - x₁ )
Given data ,
Let the equation of line be represented as A
Now , the value of A is
The first equation is -3x + 3y = 12 be equation (1)
y = x + 4 be equation (2)
Adding 3x on both sides , we get
3y = 3x + 12
Divide by 3 on both sides , we get
y = x + 4 be equation (3)
So , the equation ( 2 ) is same as equation ( 3 )
Now , the slope of the equation is m = 1 and the y intercept is b = 4
Hence , the equations have infinite solutions
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There are 9 employees at a corporate retreat, but a particular team building exercise requires only 2 people, each playing a different role. How many ways are there to select 2 employees and assign them to the roles?
Answer:
P(9,2) = 72
Step-by-step explanation:
can someone help me witth these two questions
Answer:
ok
1st one x=245°
2nd one x= 250
Step-by-step explanation:
hope its correct
hope u find it helpful
Answer:
x = 245 and x = 20
Step-by-step explanation:
The sum of the interior angles of a polygon is
sum = 180° (n - 2) ← n is the number of sides
Here n = 5 , then
sum = 180° × 3 = 540°
Sum the interior angles and equate to 540
25 + 112 + 100 + 58 + x = 540
295 + x = 540 ( subtract 295 from both sides )
x = 245
---------------------------------------------------------------
5x + 2 + 3x + 5 + 8x + 8 + 4x + 15 + 5x + 10 = 540
25x + 40 = 540 ( subtract 40 from both sides )
25x = 500 ( divide both sides by 25 )
x = 20
What is the volume of this sphere?
Use ≈ 3.14 and round your answer to the nearest hundredth.
Answer:
The answer is 4186. 67
Step-by-step explanation:
[tex]v = \frac{4}{3} \times 3.14 \times {(10)}^{3} \\ v = 4186.66666 \\ v = 4186.67[/tex]
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the volume of a rectangular prism is 36x6y8. the length of the prism is 4x3y5 and the width of the prism is 3xy2. what is the height of the prism?
Answer:
need the points sorry
Step-by-step explanation:
jesus
Which expression is equivalent to (60)2 – (12)?? (60 – 12)
(60 - 12) (60 - 12)
(60 + 12)(60 – 12)
(60 + 12)
Answer:(60 + 12)(60 – 12)
Step-by-step explanation:
solve for x!!!!!!!!!!!
Answer:
22.65728
Step-by-step explanation:
29*tan(38 degrees) = 22.65728
help me I need this now!!!!!!!!!
Answer:
45
Step-by-step explanation:
All angles of a triangle should add up to 180
35 + 80 + 45 = 180