Answer:-3
Step-by-step explanation:
Given (x+1)2=9, solve for x
Answer:
x= 7/2
2(x+1)=9
x+1=9/2
x=9/2 - 1
x=7/2
Answer:
x=7/2 x=3.5
Step-by-step explanation:
divide both sides by 2
(x+1)(2)/2=9/2
simplify
x+1=9/2
subtract 1 from both sides
x+1-1=9/2-1
simplify
x=7/2
| -11| -| - 6| what is the absolute value
Answer:
The answer is -5
Step-by-step explanation:
−11−(−6)
=−11−(−6)
=−11+6
=−5
Determine the parent function
what Is 0.0000724 in standard form
Answer:
7.24 * 10^-5
Step-by-step explanation:
Pls help really fast I don't know this!!!!!
I think it's (3,4) but I am not confident so please be understanding
Answer:
(3, 1 )
Step-by-step explanation:
The centre of the circle is at the midpoint of the diameter.
Given endpoint (x₁, y₁ ) and (x₂, y₂ ) then the midpoint is
( [tex]\frac{x_{1}+x_{2} }{2}[/tex] , [tex]\frac{y_{1}+y_{2} }{2}[/tex] )
Here (x₁, y₁ ) = (9, 7) and (x₂, y₂ ) = (- 3, - 5 ) , then
midpoint = ( [tex]\frac{9-3}{2}[/tex], [tex]\frac{7-5}{2}[/tex] ) = ( [tex]\frac{6}{2}[/tex], [tex]\frac{2}{2}[/tex] ) = (3, 1 )
Thus centre of circle = (3, 1 )
What is the simplified form of (3x^2-4x^4-x+9)-(9x^3+6x-x^2+16) in standard form?
Answer:
-4x^4-9x^3+4x^2-7x-7
Step-by-step explanation:
pOiNtS gIvE aWaY i DoNt HaVe MuCh BuT hErE yA gO
Answer:
Gracias generous mane •‿•
Step-by-step explanation:
Answer:yes
Step-by-step explanation:
Max ran 8 miles on Thursday. One mile is equal to 5,280 feet. Which
proportion can be used to determine how many feet, x, Max ran on
Thursday?
Answer:
5280x=y
Step-by-step explanation:
5280(8) = 42240
THE GREATEST PRODUCT
You have sixty seconds to arrange the numbers 3.456
and 7 in the boxes below to get the largest productible
Each number may be used only once
Answer:
7*6543=45801
Step-by-step explanation:
We have the digits 34567 and must arrange them into a product with the largest possible value.
It's clear that we must place the largest digits to the left, so they represent larger numbers to multiply.
Let's try with:
7654*3=22962
765*43=32895
76*543=41268
7*6543=45801
This last combination definitely produces the largest product
Answer: 7*6543=45801
Prove that (Root of Sec A - 1 / Root of Sec A + 1) + (Root of Sec A + 1 / Root of Sec A - 1) = 2 cosec A
Answer:
The answer is below
Step-by-step explanation:
We need to prove that:
(Root of Sec A - 1 / Root of Sec A + 1) + (Root of Sec A + 1 / Root of Sec A - 1) = 2 cosec A.
Firstly, 1 / cos A = sec A, 1 / sin A = cosec A and tanA = sinA / cosA.
Also, 1 + tan²A = sec²A; sec²A - 1 = tan²A
[tex]\frac{\sqrt{secA-1} }{\sqrt{secA+1} } +\frac{\sqrt{secA+1} }{\sqrt{secA-1} } =\frac{(\sqrt{secA-1)}(\sqrt{secA-1})+(\sqrt{secA+1)}(\sqrt{secA+1}) }{(\sqrt{secA+1})(\sqrt{secA-1}) } \\\\=\frac{secA-1+(secA+1)}{\sqrt{sec^2A-secA+secA-1} } \\\\=\frac{2secA}{\sqrt{sec^2A-1} } \\\\=\frac{2secA}{\sqrt{tan^2A} } \\\\=\frac{2secA}{tanA} \\\\=\frac{2*\frac{1}{cosA} }{\frac{sinA}{cosA} }\\\\= 2*\frac{1}{cosA}*\frac{cosA}{sinA}\\\\=2*\frac{1}{sinAA}\\\\=2cosecA[/tex]
the double of a number divided by 3 is less than 8
Answer:
-12
Step-by-step explanation:
× x 2 = 2x
2x/3= -8x3/2
x = -12
what’s the answer to
2(s-10)=12
Answer: s = 16
2(s - 10) = 12
distribute the 2
2s - 20 = 12
add 20 to both sides
2s = 32
divide both sides by 2
s = 16
you can then check your work by putting in the 16
2 (16-10) = 12
2 (6) = 12
12 = 12
Doug took 93 minutes to answer 31 questions. Click on the equation that can be used to determine the number of questions, q, that Doug answered per minute. How many questions did Doug answer per minute?
QUESTION SHOWN ON PHOTO.
All of the points on the graph could represent rational numbers. (-1, 0, 1, 4.5)
Answer:
B
Step-by-step explanation:
A: false, point C isn't a rational number
B: True, Every negative integer is a negative rational number, like point A
C: false, point D is a fraction, therefore, point D is a rational number
D: false, like said in A, point C isn't a rational number
An electrician charges $50 to come to your house. She also charges $40 for each hour that she
works. The electrician charges you a total of $210. How many hours does the electrician work
at your house? (Use h for the number of hours).
Answer:
Equation- 50+40h=210
Answer- h=4
Step-by-step explanation:
Just simplify the equation :)
50+40h=210
40h=160
h=4
The electrician worked for 4 hours.
Happy holidays!
Ziad tells his son Marc: " This year my age is triple yours, but in 10 years, it will be the double". Find their ages.
Answer:
Ziad is 30 years old.
Marc is 10 years old.
Step-by-step explanation:
We will use m to represent Marc's age this year, and z to represent Ziad's age this year.
This year:
z = 3m
To show their relative ages in ten years time:
z + 10 = 2(m+10)
We can rearrange this to make m the subject.
z + 10 = 2m + 20
z = 2m + 10
We also know that m = 3z. We can substitute this value into our equation.
3m = 2m + 10
m = 10
Use z = 3m to find that z = 30.
PLSS HELPPPP MEE ITS DUE TMRW
Answer:
the turning point is (-2,-1)
i dont know the turning point but i hope this helps
Step-by-step explanation:
Answer:
a) (-2 , -1)
b) (-1 , 0) and (-3 , 0)
Step-by-step explanation:
For part a)
We can find the coordinates of the turning point by seeing at the graph where it turns the other way or in simpler words the axis of symmetry so if see the graph the axis of symmetry is the line x = -2 so that means the turning point is (-2 , -1).
For finding the turning point mathematically we compare the equation to its standard form which is:
[tex]x^2+4x+3=a(x-h)^2+k[/tex]
where h is the x coordinate and k is the y coordinate of the turning point of the equation (h , k) = (x , y).
so just solve the left side,
[tex]a(x-h)^2+k\\a((x)^2-2(x)(h)+(h)^2)+k\\a(x^2-2xh+h^2)+k\\\\ax^2-2ahx+ah^2+k=x^2+4x+3\\[/tex]
and so we compare the coefficients of x^2 on the right and left side we get
[tex]a=1[/tex]
if we compare the coefficients of x on the right and left side we get
[tex]-2ah=4\\-2(1)h=4\\-2h=4\\h=\frac{4}{-2}\\\\h=-2[/tex]
now we compare the constants on the right and left side we get
[tex]ah^2+k=3\\(1)(-2)^2+k=3\\(1)(4)+k=3\\4+k=3\\k=3-4\\k=-1[/tex]
so the turning point is (-2 , -1) proven mathematically and graphically as well
For part b)
Roots of the equation are also called as x-intercepts which means where the graph intersects/cuts the x-axis so if see the graph it cuts the x-axis at 2 points firstly at -3 and then at -1 so the roots of the equation would be (-1 , 0) and
(-3 , 0) the y coordinate is zero when the points lies on the x-axis.
for mathematically solving the equation we would equate the equation to zero
[tex]y=x^2+4x+3\\x^2+4x+3=0[/tex]
Now solve it by either factorizing or by using the quadratic formula we would get two values for x those are the roots of the equation
we solve it by factoring
[tex]x^2+4x+3=0\\x^2+3x+x+3=0\\x(x+3)+1(x+3)=0\\(x+3)(x+1)=0\\x=-3\ ,\ x=-1\\[/tex]
proven mathematically as well as graphically.
please help me to solve this please
Answer:
4
Step-by-step explanation:
divide by 2 and you will have your answer
Harold can buy 2 pounds of bananas for $7. Write an equation to represent the cost, c , for b bananas.
The equation representing the situation is c = 3.5b
What is an equation?An equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.
Given that, Harold can buy 2 pounds of bananas for $7.
Since, he can buy 2 pounds in $7 so, 1 pound in = 7/2 = $3.5
So, when he will buy b pounds of bananas he will spend = $3.5b
So, if c is the total cost for b pounds of bananas, then the equation representing the total cost for b pounds of bananas will be,
c = 3.5b
Hence, c = 3.5b is the equation that represent the cost, c, for b bananas.
For more references on equations, click;
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A kid at Spruance buys candy at wawa for $1 and sells it for $2, Find the
percent change. *
Answer:
100%
Step-by-step explanation:
percentage change is
(new price - old price) / old price
2 - 1 / 1
1 * 100% = 100%
please give thanks by clicking heart button! :)
WILL GIVE BRAINLIEST! 40 POINTS! please answer right and dont be mean
Answer:
Brainliest are always appreciated :)
Step-by-step explanation:
For Number 1, just make a graph. (THE LINE WILL BE STRAIGHT)
For Number 2:
Proportional is when quantities have the same relative size. In other words they have the same ratio. The cocoa has an equivalent ratio which is why its proportional. This means that as x increases, y increases and as x decreases, y decreases-and that the ratio between them always stays the same.
Each unit on the graph is equal to 1 block. How many blocks does a delivery truck need to travel to deliver flour from the flour mill to the bakery? Select the correct answer.
A.
4 blocks
B.
5 blocks
C.
6 blocks
D.
7 blocks
The answer is C. 6 blocks.
Answer:
C. 6 blocks is correct. I took the test and got that right :)
Step-by-step explanation:
a baby was born with a weight of five pounds and then began to gain 1.25 pounds per month. write an equation for w in terms of t representing weight in pounds of a newborn baby t months after birth
Answer:
w times t
Step-by-step explanation:
Answer:
1.25t+5
Step-by-step explanation:
period
A bouncing ball reaches a height of 27 feet at its first peak 18 feet at its second peak and 12 feet at its third peak Describe how a sequence can be used to determine the height of the ball when it reaches its fourth peak
Answer: 8
Step-by-step explanation:
A Geometric sequence can be used:
To Model this sequence you need to use this formula
A (subscript n) = Ar(n-1)
a = value of the first term
n = the # of the term you want to find (For example, if you want to find the term number 3, it is 12)
r = the common ratio, this is obtained by dividing the second term in the sequence by the first.
So the value of r is = 2/3 because 27 times 2/3 = 18 which is the second term
n = 4 since you want to find the 4th term in the sequence
Plug it in and results are
4th term = 27(2/3)^(4-1) = 8
Sample Response:
There is a common ratio of 2/3 between the height of the ball at each bounce. So, the bounce heights form a geometric sequence: 27, 18, 12. Two-thirds of 12 is 8, so on the fourth bounce, the ball will reach a height of 8 feet.
The temperature in Tampa increased from 4 a.m. to 4 p.m. on one day in February. The table of values below represents temperature as a function of time.
Time
5:53 a.m.
6:53 a.m.
8:53 a.m.
11:53 a.m
3:53 p.m.
Temperature
(°F)
60.1
60.1
66.9
75.2
78.1
Over which interval was the average rate of change per hour the greatest?
Answer:
its b
Step-by-step explanation:
Time interval 6:53 a.m to 8:53 a.m, the average rate of change per hour the greatest.
Given,
Time Temperature (°F)
5:53 a.m. 60.1
6:53 a.m. 60.1
8:53 a.m. 66.9
11:53 a.m 75.2
3:53 p.m. 78.1
From 5:53 a.m. to 6:53 a.m. the temperature is constant. So average rate of change per hour is 0.
From 6:53 a.m to 8:53 a.m. the temperature is increasing from 60.1 to 66.9 or 6.8 in 2 hours . So average rate of change per hour is [tex]\frac{6.8}{2} =3.4[/tex].
From 8:53 a.m. to 11:53 a.m the temperature is again increasing from 66.9 to 75.2 or 8.3 in 3 hours. So average rate of change per hour is [tex]\frac{8.3}{3} =2.76[/tex].
From 11:53 a.m to 3:53 p.m. the temperature is again increasing from 75.2 to 78.1 or 2.9 in 4 hours. So average rate of change per hour is [tex]\frac{2.9}{4}=0.725[/tex].
Now clearly from the above points time interval 6:53 a.m to 8:53 a.m, the average rate of change per hour the greatest.
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$9.39 with a 3.5% tax. What is the subtotal plus the tax? With a tip of 20% what is the total wit tax plus the 20% tip equal to?
Answer:
a. $9.72
b. $11.60
Step-by-step explanation:
$9.39*(1+(3.5/100)) = $9.72
$9.39*(20/100) = $1.88
$9.72+$1.88 = $11.60
Please state reason as well....
Is it possible to construct a quadrilateral from any 4 given measurements of its sides? State a reason for your answer.
Answer:
It is NOT possible to construct a quadrilateral from any 4 given measurements of its sides.
Step-by-step explanation:
We know that the Quadrilateral is a 2D closed figure with four sides.The Quadrilateral has four vertices or corners.We are asked to tell whether it is possible to construct a quadrilateral from any 4 given measurements of its sides.
Well, in order to construct a quadrilateral from any 4 given measurements of its sides, we need at least five dimensions.
With only 4 given measurements of its sides, we won't know any of its angles.
Thus, it is NOT possible to construct a quadrilateral from any 4 given measurements of its sides.
How is 7÷2 equivalent to 7/2?
Answer:
7 divided 2 is another way of saying 7/2 since division and fractions are alike.
Step-by-step explanation:
Answer:
because youre still dividing it either way;
Step-by-step explanation:
an improper fraction (7/2) you would have to see how many times the 2 goes into the 7 to get a proper fraction. its the same way with division, just less complicated and in a different format.
Jack paid $13.75 to buy 3 slices of pizza and 4 hot dogs at a concession stand. Sarah paid $9.75 to buy 2 slices of pizza and 3 hot dogs from the same concession stand. What is the price of a slice of pizza?
Please help! I will give brainliest to whoever explains how or gets it right
Because of road construction in one city, commuters were advised to plan that their Monday morning commute would take 150% of their usual commuting time. Explain what this means.
Answer:
Kindly check explanation
Step-by-step explanation:
Let :
Original commute time = x
Commute time due to road construction = 150% of original commute time
Hence, commute time due to road construction :
(150 / 100) * x
0.15x
Hence, the implication of the road construction in progress means that it will now take additional half of the usual time it takes them on a Monday morning.
For instance, an individual whose usu commute time is 10 minutes in the morning will now take :
1.5x = 1.5(10) = 15 minutes commute time on a Monday morning.