Answer: 10
Step-by-step explanation:
3 = $1.80
1 = $0.60
$6 = 10 pens
50 PTS!! WILL MARK BRAINLY
Explain why the equation (x-4)^2-28=8 has two solutions. 50 pt
heres what to fill out:
There are 2 solutions because the square root of any ______ number will give us both a ____ and _____ number as a solution .
fill in the blanks
Answer:
There are 2 solutions because the square root of any positive real number will give us both a positive and negative number as a solution .
Answer:
There are 2 solutions because the square root of any positive real number will give us both a positive and negative number as a solution.
Step-by-step explanation:
[tex](x-4)^2-28=8[/tex]
Add 28 to both sides:
[tex]\implies (x-4)^2=36[/tex]
Square root both sides:
[tex]\implies x-4=\pm 6[/tex]
[tex]\implies x=10, x=-2[/tex]
Find the surface area of the cylinder. Use 3.14 for pi. Do not round the answer.
690.8
224.5
364.8
960.8
Answer:
690.8
Step-by-step explanation:
I've done this one before
Answer:
690.8 sq units
Step-by-step explanation:
Surface Area(cyl) = 2πrh+2πr²
SA = 2(3.14)(5)(17) + 2(3.14)5²
SA = 6.28(85) + 25(6.28)
= 533.8 + 157
= 690.8
For the following two numbers, find two factors of the first number such that their product is the first number and their sum is the second number.
65,18
Which number line shows the solution to
11x + 14 < –8?
Answer:
D
Step-by-step explanation:
11x + 14 < -8
Cancel the addition by subtracting
11x + 14 - 14 < -8 - 14
11x < -22
11x / 11 < -22/11
x < -2
Therefore, the answer is D
1)Find the quadratic equation
3(3x [tex] {}^{2} [/tex]+ 1)=12x
2)Find the quadratic equation
[tex]9y {}^{2} - 12y - 14 = 0[/tex]
Step-by-step explanation:
See picture above for solution.
21+77 using gcf and distributive property pls
PLEASE HELP ME QUICKKK, FIRST CORRECT PERSON GETS BRAINLIEST
Answer:
all a,d, and e are correct. Use the area of a circle formula to solve5 A line passes through the point (-4,-1) and has a slope of 4 Write an equation in point-slope form for this line.
Answer:
y + 1 = 4(x + 4)
Step-by-step explanation:
When you write an equation in point-slope form, you only need two things: a point and a slope.
Given:
point: (-4, -1)slope (m): 4The standard point-slope equation is
y - y₁ = m(x - x₁)Plug in what you know.
y - (-1) = 4(x - (-4))Simplify.
y + 1 = 4(x + 4)This is your equation.
Hope this helps!
Learn with another example:
https://brainly.com/question/24436844
The linear equation in point-slope form is y + 1= 4(x + 4)
How to determine the equation of the lineA linear equation is calculated using the following equation:
y - y1= m(x - x1)
From the question, we have:
Slope (m) = 4
(x1,y1) = (-4,-1)
So, the equation becomes
y + 1= 4(x + 4)
Hence, the linear equation in point-slope form is y + 1= 4(x + 4)
Read more about linear equations at:
https://brainly.com/question/15602982
Stephanie won 53 super bouncy balls playing hoops
at the county fair. At school she gave three to every
student in her math class. She only has 2 remaining.
How many students are in her class?
(Write an equation, solve, and check your solution)
simplify the expression
4√ 2 + 2√ 32
Answer:
16.97056
Step-by-step explanation:
HELP ME OUT PLEASE!!!!!
A point on a pre-image is currently located at (1, -3). The pre-image is translated 3 units right and 6 units up.
What are the NEW coordinates for the point after the translation?
Use graph paper to sketch the translation if needed.
O (3, 4)
O (4, 3)
O (7, 0)
O (-2, 2)
Answer:
(4,3)
Step-by-step explanation:
Mr. Bray prepares a list of 434343 US presidents, 888 of whom died in office. Then 181818 of his students each select a president at random (there can be repeats) for their creative writing assignments
Answer:
where is the question bcz u only gave us a storyAnswer:0.98
Step-by-step explanation:got it right on khan
A bank account earns 2% interest each year. Giselle uses the expression p +0.02p
to find how much money will be in the account after one year if she deposits p dollars.
Answer:
1.02 is the simplified answer and 102% is the answer to the next one
Step-by-step explanation:
The expression p+0.02p can also be written as 1p+0.02p.
To combine like terms, add the coefficients.
1+0.02=1.02, so 1p+0.02p=1.02p.
"A city official is modeling the demand for bus transportation as a function (,) of two variables:
= price of a daily bus ticket in $, = price of parking per day in a downtown garage in $.
She hypothesizes that demand varies inversely as and directly as 100^2.
Answer the following questions considering that with a daily bus ticket cost of $0.50 and parking price of $6 per day, there are 7,200 bus riders using the bus transportation system.
1. Write the mathematical function describing the demand for bus transportation:
(,) = _"
I'm not sure how to set this up. Also not clear on what "the demand varies inversely as x and directly as 100y^2" means in this context.
Answer:
Step-by-step explanation:
Natalie has 412 apples that she must package into bags. Each bag must hold 8 apples. Natalie divides 412 by 8 and gets an answer of 51 R 4. What is the correct interpretation of R 4 for this situation? 1. Natalie can fill 4 more bags after filling 51 bags. 2. Natalie has 4 bags left after filling 51 bags. 3. Natalie has 4 apples left after filling 51 bags. 4. Natalie can fill at most 51 bags with 4 apples each.
Answer:
3.
Step-by-step explanation:
The answer is 51 R4, meaning that 54 bags HAVE been filled and 4 apples are the remainder. Therefore, there are 4 apples that have not been bagged and Natalie would need another bag to bag all the apples.
Your friend is going to buy a used car. The one he is considering costs $4000 and will lose value at a rate of 13% per year. How much less will it be worth in 3 years?
13% of $4000 is $520
If the $4000 car loses value at a rate of 13% each year for 3 years
$520 x 3 = $1560
Subtract this amount from $4000
$4000 - $1560 = $2440
Answer: In 3 years, the used car will be worth $2440 in 3 years
Vishal decided to return to Greenwood Bakery on Liberty Avenue on Tuesday to buy more desserts. This time he bought cookies and cake pops. He needed to buy at least 10 desserts to share with his family. each cake pop was $4 and each cookie was $2 Vishal could not spend more than $30. of each cake pop is x and each cookie is y determine the different amounts of desserts Vishal can purchase though graphing
The linear equality that shows this relationship is x + y ≥ 10 and 4x + 2y ≤ 30
Equation
An equation is an expression used to show the relationship between two or more variables and numbers.
Let x represent the number of cake pop and y represent the number of cookie. Hence:
x + y ≥ 10 (1)
Also:
4x + 2y ≤ 30 (2)
The linear equality that shows this relationship is x + y ≥ 10 and 4x + 2y ≤ 30
Find out more on equation at: https://brainly.com/question/13763238
Write a sum of three numbers that equal zero
Answer:
1 + (-3) + 2 = 0
Step-by-step explanation:
Part A: If (26)X = 1, what is the value of x? Explain your answer. (5 points)
Part B: If (59x = 1, what are the possible values of x? Explain your answer. (5 points)
Answer: Part A: 1/26 or 0.38
Part B: 1/59 or 0.017
Step-by-step explanation:
Brainliest if correct
Answer:
w = 9
Step-by-step explanation:
18 + 4w = 6w
6w - 4w = 2w
2w = 18
18/2 = 9
2w/2 = w
w = 9
[tex]\large\textbf{Hey there!}[/tex]
[tex]\large\textbf{18 + 4w = 6w}\\\large\textbf{4w + 18 = 6w}\\\large\text{SUBTRACT 62to BOTH SIDES}\\\large\textbf{4w + 18 - 6w = 6w - 6w}\\\large\text{SIMPLIFY IT!}\\\large\textbf{-2w + 18 = 0}\\\large\text{SUBTRACT 18 to BOTH SIDES}\\\large\textbf{-2w + 18 - 18 = 0 - 18}\\\large\text{CANCEL out: 18 - 18 because it give you 0}\\\large\text{KEEP: 0 - 18 because it help solve for the w-value}\\\large\text{NEW EQUATION: \bf -2w = 0 - 18}\\\large\text{SIMPLIFY IT!}\\\large\textbf{-2w = -18}[/tex]
[tex]\large\text{DIVIDE -2 to BOTH SIDES}\\\mathbf{\dfrac{2w}{-2}= \dfrac{-18}{-2}}\\\large\text{CANCEL out:} \rm\dfrac{-2}{-2}}\large\text{ because it give you 1}\\\large\text{KEEP: }\rm{\dfrac{-18}{-2}}\large\text{ because it gives you the w-value}\\\large\text{NEW EQUATION: \bf w = }\rm{\bf \dfrac{-18}{-2}}\\\large\text{SIMPLIFY IT!}\\\large\textbf{w = 9}\\\\\huge\textbf{Therefore, your answer is: \boxed{\mathsf{w = 9}}}\huge\checkmark[/tex]
[tex]\large\textbf{Good luck on your assignment \& enjoy your day!}[/tex]
~[tex]\frak{Amphitrite1040:)}[/tex]
An article reports “attendance dropped 6% this year, to 300.” What was the attendance before the drop?
Answer:
Approximately 319.15
Step-by-step explanation:
300 ÷ (1 - 6%) = 319.14893617021
how to spell spell spell
Answer:
Spell spell?
Step-by-step explanation:
Answer:
Reading, using a dictionary and playing online word games are all helpful.
Step-by-step explanation:
read.
Communicate.
Learn.
2. Julia purchases a rectangular plot of land with a perimeter of 90 yards. She knows that the length
of the field is twice the width. Find the dimensions (the length and width) of the field.
Answer:
sorry I don't know.
Step-by-step explanation:
I don't know but I k ow how you feel
Answer:
The length is 30 and the width is 15
Step-by-step explanation:
i dont really know how i got this. T.T sorry i did it in my head but my answer has ro be right hope this helps
OS
Question 2
A circle has a centre C (1,3)The end points of a diameter of the circle are A (-3,2k) and B (5,k)
Find the value of k, k
Answer:
k = 2
Step-by-step explanation:
We'll need the Midpoint Formula: the midpoint of a segment joining points [tex](x_1, y_1) \text{ and }(x_2, y_2) \text{ is } \left(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2}\right)[/tex]. In other words, average the x's, then average the y's.
The midpoint of a diameter is the centre of the circle!
The midpoint of the segment joining (-3, 2k) and (5, k) is
[tex]\left(\frac{-3+5}{2}, \frac{2k+k}{2} \right)=\left(1,\frac{2k+k}{2}\right)=\left(1,\frac{3k}{2}\right)[/tex]
That last expression is the centre of the circle; it is the same as (1, 3).
[tex]\left(1,\frac{3k}{2}\right)=\left(1,3\right)\\\frac{3k}{2}=3\\3k=6\\k=2[/tex]
Find the volume of the cylinder. Round your answer to the nearest tenth.
Answer:
245pi(769.7)
Step-by-step explanation:
V=Bh
B=7pi^2=49pi
V=49pi*5
V=769.6902001
V=~ 769.7
in terms of pi=245pi
When a number is decreased by 30 % of itself, the result is 14. What is the number?
Answer: 20
Step-by-step explanation:
We set up the equation.
Let the number = x
x-0.3*x = 14
0.7x = 14
x = 20
One number exceeds another by 5. The sum of the numbers is 25. What are the numbers?
The numbers are?
[tex]\bold{\huge{\pink{\underline{ Solution}}}}[/tex]
[tex]\bold{\underline{ Given :- }}[/tex]
The sum of two numbers is 25One number exceeds another by 5[tex]\bold{\underline{ To \: Find :- }}[/tex]
We have to find the two numbers.[tex]\bold{\underline{ Let's \: Begin:- }}[/tex]
Let the number be x
Therefore,
Another number be x + 5
According to the question,
[tex]\sf{ x + ( x + 5 ) = 25}[/tex]
[tex]\sf{ x + x + 5 = 25}[/tex]
[tex]\sf{ 2x + 5 = 25}[/tex]
[tex]\sf{ 2x = 25 - 5}[/tex]
[tex]\sf{ 2x = 20 }[/tex]
[tex]\sf{ x = 20/2}[/tex]
[tex]\sf{ x = 10 }[/tex]
Thus, The first number is 10
Therefore,
Another number will be
[tex]\sf{ = x + 5 }[/tex]
[tex]\sf{ = 10 + 5 }[/tex]
[tex]\sf{ = 15 }[/tex]
[tex]\sf{\red{Hence, \:The \:two \:numbers\: are \:10 \:and\: 15}}[/tex]
Find the volume of a sphere with a diameter of 10 yards
Answer:
Step-by-step explanation:
diameter = 2 * radius Divide by 2
radius = diameter /2
Formula
Volume_sphere = 4/3 pi r^3
Givens
r = 10 yards
Solution
Volume = 4/3 * 3.14 * 10^3
Volume = 4.1867*10^3
Volume = 4186.7 yards^3
What is the total price of an $18.97 item plus 8% slaes tax?
Answer:
$20.49
Step-by-step explanation:
8% = 8/100 = 0.08
Therefore, 8% of 18.97 = 0.08 x 18.97 = 1.5176
So the total price = 18.97 + 1.5176 = 20.4878 = $20.49
Alternatively,
108% = 108/100 = 1.08
18.97 x 1.08 = 20.4878
Find the area of the composite figure.
Answer:
132 square feet
Step-by-step explanation:
The formula for the area of a triangle is 1/2 * b * h. B stands for base and h stands for height. 1/2 multiplied by the base, 10, is 5. We then multiply 5 by 12 which is 60. Let's look at the rectangle now. The area of a rectangle is length by width. The length is 12ft and the width is 6ft. 12 * 6 = 72. 72+60=132 square feet.