Answer:
3b^2+2b-8 Hope that helps !
Step-by-step explanation:
1. Use the FoIL method: (a+b)(c+d)= ac+ad+bc+bd 3b^2+6b-4b-8
2. Collect like terms 3b^2+(6b-4b)-8
3. Simplify which would give you your answer: 3b^2+2b-8
Please help i'm really stuck!
Answer:
Step-by-step explanation:
3x + 4y = 12
4y = -3x +12
y = (-3/4)X + 12/4
y = -[tex]\frac{3}{4}[/tex]X + 3
Which data would best be displayed on a line graph?
A. Comparisons of height
B. The percentage results from a survey
C. Ages of siblings
D. Daily times for a long distance runner
Answer: D. Daily times for a long distance runner
Answer: C. Ages of siblings
Step-by-step explanation: Line graphs are used to track changes over short and long periods of time.
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Answer:
12. (8(2.5)-3)
(20-3)
y=17in
10. 3x+1+92=180
3x+93=180
3x=180-93
3x=87
x=87/3
x=29°
11. (6(2.5)+2)
(15+2)
G=17
Answer:
#10 I think its 14.3
#11 GI=16
#12 AC =17
Step-by-step explanation:
180-92=88 divided by 2=44
6x2.5=15+2=17
8x2.5=20-3=17
Suppose that 13 inches of wire costs 78 cents.
At the same rate, how much (in cents) will 7 inches of wire cost?
Answer:
$0.42
Step-by-step explanation:
create a proportion:
13/.78 = 7/x
cross-multiply to get:
13x = 7(.78)
13x = 5.46
x = 5.46/13
x = .42
11. The student council is comparing prices for their semi-formal dance. They compare banquet. Hall A charges $40 per person. Hall B charges $20 per person plus $500 fixed fee. Write an equation to represent the relationship between the total cost and the number of people, if the variables are defined as follows:
Answer:
TC (A) = 40x , TC (B) = 500 + 20x
Step-by-step explanation:
Let the number of students be = x
Hall A Total Cost
Relationship Equation, where TC (A) = f (students) = f (x) 40 per person (student) = 40x
Hall B Total Cost
Relationship Equation, where TC (B) = f (students) = f (x) 500 fix fee & 20 per person (student) = 500 + 20x
Find the distance between points P(4, 4) and Q(9, 3) to the nearest tenth
Answer:
[tex]5.1[/tex] units
Step-by-step explanation:
(4, 4) & (9, 3)
To find the distance of two points, we use the distance formula:
[tex]d = \sqrt{(x_{2}-x_1)^2 + (y_2-y_1)^2 }[/tex]
Let's plug in what we know.
[tex]d = \sqrt{(9 - 4)^2 + (3 -4)^2 }[/tex]
Evaluate the parentheses.
[tex]d = \sqrt{(5)^2 + (-1)^2 }[/tex]
Evaluate the exponents.
[tex]d = \sqrt{(25) + (1)}[/tex]
Add.
[tex]d = \sqrt{(26)}[/tex]
Evaluate the square root.
[tex]d = \sqrt{26}[/tex] or [tex]5.0990[/tex] units
Round to the nearest 10th.
[tex]5.1[/tex] units
Hope this helps!
can someone please help i need this done soon
V= 4 i mean thats the best i can give sorry good luck pretty sure its right
Vincent gathered groups of 1 to 8 people and gave every group the same puzzle to solve. He recorded the number of minutes it took each group to solve the puzzle and plotted the results.
Answer:
Larger groups tends to take less time to solve the puzzle.
Step-by-step explanation:
It is given that Vincent gathered few groups from 1 to 8 people and he gave them the same puzzle to solve for each group. The graph is provided which show the relationship between the number of groups and the time taken by each group to solve the puzzle.
From the graph, it cam be seen that, the larger groups is more likely to take less amount of time to solve the puzzle as compared to the smaller groups.
Answer:
B
Step-by-step explanation:
Khan Academy says so
Tell whether f(x)=—5x^2+10x+7 has a minimum or a maximum value, find the value
Liam writes a number sequence starting with 7, 12, 17
Answer:
the sequence is adding 5 the next number would be 22
hope this helps
have a good day :)
Step-by-step explanation:
7, 12, 17, 22, 27 . . . (5n + 2)
n = 1, => 7
n = 2, => 12
n = 3, => 17
n = 4, => 22
What is the value of x? (Geometry)
Answer:
3x-5+6x+14=180
9x+9. =180
9(X+1).= 180
X+1. =20
X= 19
A fish swimming at the same depth as the hook at the end of her fishing line in s 60 feet away
Answer:
.
Step-by-step explanation:
Use the data to answer the question.
28, 32, 36, 37, 39, 41, 41, 43, 45
What is the median of the data?
OA 37
B. 38
Oc. 39
D
41
Answer:
c. 39
Step-by-step explanation:
you have to find the middle of this. 39 is the middle.
6
3
3
6
The perimeter is about ___
units.
Answer:
18
Step-by-step explanation:
Adding 6 and 3 gives you the full length of the long side of rectangle and since 3 is the radius of the circle, the short side if the rectangle would also be equal to 3.
So, the long sides equal 9 and the short sides are 3, making the perimeter 18
The perimeter of the rectangle is P = 24 units
What is the Perimeter of a Rectangle?The perimeter P of a rectangle is given by the formula, P=2 ( L + W) , where L is the length and W is the width of the rectangle.
Perimeter P of rectangle = 2 ( Length + Width )
Given data ,
Let the perimeter of the rectangle be P
Now , the width of the rectangle = radius of circle
W = 3 units
And , the length of the rectangle is L = 6 + 3 = 9 units
And , Perimeter P of rectangle = 2 ( Length + Width )
On simplifying , we get
P = 2 ( 9 + 3 )
P = 2 x 12
P = 24 units
Hence , the perimeter is 24 units
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Someone pls tell me the answer to this5(6.2+z);z=3.8
Answer:
30.2 is the answer (use distrubutyion in this problem)
Step-by-step explanation:
What is the solution to the system of equation above?
7.
The length of a rectangle is increased by 10% while its breadth is decreased by 10%.
Determine, if any, the percentage change in its area.
Answer:
the new area is 1% smaller.
Step-by-step explanation:
the area of a rectangle is length times breadth.
let's call them a and b
Area = a × b
now, a is increased by 10%. that means it is multiplied by 11/10.
because 100% means the whole thing, 1% means a 1/100th part of the whole. and 10% then means 10 times the 1/100th part of 10 × 1/100 = 10/100 = 1/10
if then simmering increases by 10% it means that it is the original 100% plus 10%.
so, it is 100/100 + 10/100 = 10/10 + 1/10 = 11/10
therefore the new length is
a(new) = a(old)×11/10
in exactly the same way, when the breadth is reduced by 10% we get then
breadth(new) = breadth(old)×9/10
so, Area(new) = a(new)×b(new) = a(old)×11/10 × b(old)×9/10
remember, Area(old) = a(old)×b(old)
so, Area(new) = a(old)×b(old) × 11/10 × 9/10 =
= Area(old) × 11/10 × 9/10 =
= Area(old) × 99/100
that means the new area has lost compared to the old area 1/100th of its size. 1/100th = 1%
I’ll give brainliest
Completed a full explanation of statistics with explanation and examples ?
Answer: Hope This Helps!
Step-by-step explanation:
Statistic Definition: A mathematical science concerned with data collection, presentation, analysis, and interpretation
Examples: "Statistics is the only mathematical field required for many social sciences." and "The statistics from the Census for apportionment are available."
what is the answer pls 6 2/6 x 1 1/2 =
Answer:
9.5
Step-by-step explanation:
Find the correct values for the variables that make the statement.
Answer:
hey:)
H= 90+33=123
180-123=57
so:
H=57°
Write the equation of the parabola in vertex form.
vertex(2,1),points (1,-4)
F(x)=?
Step-by-step explanation:
The general vertex form is given by
[tex]y = a {(x - h)}^{2} + k[/tex]
where (h, k) is the vertex and a is a constant. So we can write the y as
[tex]y = a {(x - 2)}^{2} + 1[/tex]
To find the value of a, substitute the point (1, -4)
-4 = a(1 - 2)^2 + 1
or a = -5
Therefore, the vertex form of the parabola is
[tex]y = - 5 {(x - 2)}^{2} + 1[/tex]
The population of Algebra City is approximately 314,159 people, but the rate decreases at 2.7% each year. About how many people will live in Algebra City in 9 years?
Answer:
245,564people
Step-by-step explanation:
The population of Algebra City is approximately 314,159 people, but the rate decreases at 2.7% each year. About how many people will live in Algebra City in 9 years?
We solve for the above question using the formula for Exponential decrease. =
P(t).= Po(1 - r)^t
Where
P(t) = ?
Po = Initial population = 314159
r = 2.7% = 0.027
t = time = 9 years
P(t) = 314159(1 - 0.027)⁹
= 245564.2088
Approximately to the nearest whole number = 245,564people
Two sides of a parallelogram are 28 feet and 27 feet. The measure of the angle
between these sides is 172º. Find the area of the parallelogram to the nearest square
foot.
Answer:7
Step-by-step explanation:
Answer:
105
Step-by-step explanation:
Out of a group of 20 volunteers, 14 people are chosen to participate in a survey about the number of hours of television they watch each week. What is the sample in this situation?
Answer:
Step-by-step explanation:
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PLEASE HELP WILL MARK THE BRAINLIEST IF RIGHT
Rotate and find the reference angle for 207°.
Angle: 0°
y
Quadrant II
90°
Quadrant 1
180°
L0/360°
Quadrant III
270°
Quadrant IV
Answer:
Quadrant III
Step-by-step explanation:
Quadrant I = 1 - 90°
Quadrant II = 91 - 180°
Quadrant III = 181 - 270°
Quadrant IIII = 271 - 360°
what is the probability that andre, olivia, and zach all win gift cards that are at least 25$?
pls help
Answer:it’s 1/4
Step-by-step explanation:
Answer: 1/4
Step-by-step explanation:
Question #5
Charles cut a slice from a circular pizza with the diameter shown below.
Pizza
15 inches
The slice has an arc length of 21.5 inches along the crust. What is the approximate measure of the
central angle of the slice of pizza Charles cut?
A) 82
B) 164
C) 196
D) 278°
Answer:
Step-by-step explanation:
The approximate measurements of the central angle of the slice of pizza Charles cut will be 164 degrees. The correct option is B.
What is the Length of an Arc?The arc length of a circle can be calculated with the radius and central angle using the arc length formula.
Arc length = ∅/360 × 2πr
Given that pizza is 15 inches the slice has an arc length of 21.5 inches along the crust.
Use the formula above to calculate the value:-
Arc length = ∅/360 × 2πr
21.5 = ∅/360 × 2π ( 7.5 )
∅ = ( 21.5 x 360 ) / 2π ( 7.5 )
∅ = 164 degrees
Therefore, the approximate measurements of the central angle of the slice of pizza Charles cut will be 164 degrees. The correct option is B.
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Pls hurry , timed test
Answer:
c
Step-by-step explanation:
et f(x)=2\ln(x+4)f(x)=2ln(x+4)f, left parenthesis, x, right parenthesis, equals, 2, natural log, left parenthesis, x, plus, 4, right parenthesis and let g(x)=\dfrac23x+1g(x)= 3 2 x+1g, left parenthesis, x, right parenthesis, equals, start fraction, 2, divided by, 3, end fraction, x, plus, 1. The graph of y=f(x)y=f(x)y, equals, f, left parenthesis, x, right parenthesis is shown below. Use the interactive graph to sketch a graph of y=g(x)y=g(x)y, equals, g, left parenthesis, x, right parenthesis. LinearAbsolute_valueQuadraticExponentialLogarithm Let x_1x 1 x, start subscript, 1, end subscript and x_2x 2 x, start subscript, 2, end subscript be solutions of \,2\ln(x+4)=\dfrac23x+12ln(x+4)= 3 2 x+12, natural log, left parenthesis, x, plus, 4, right parenthesis, equals, start fraction, 2, divided by, 3, end fraction, x, plus, 1, where x_1
Answer:
x=-3.5 , the points of the graph are 0,1 and 3,3
Step-by-step explanation: