Check the picture below.
so the region is the one bounded by a hyperbola and two straight lines, one of which is the x-axis, or namely y = 0, since the hyperbola has a vertex at x = 4, then our bounds are from 4 to 5.
[tex]x^2-y^2=16\implies x^2-16=y^2\implies \pm\sqrt{x^2-16}=y \\\\\\ \stackrel{I~Quadrant}{+\sqrt{x^2-16}=y}\qquad \qquad \implies \stackrel{\textit{using the disk method}~\hfill }{\displaystyle\int_{4}^{5}~\pi \left( \sqrt{x^2-16} \right)^2\cdot dx\implies \pi \int_{4}^{5}(x^2-16)dx} \\\\\\ \pi \left( \left. \cfrac{x^3}{3} \right]_{4}^{5} ~~ - ~~\left. 16x\cfrac{}{} \right]_{4}^{5}\right)\implies \pi \left[\cfrac{61}{3}~~ - ~~16 \right]\implies \cfrac{13\pi }{3}[/tex]
How long will it take you to drive 135 miles at a speed of 45 miles an hour
Answer:
3 hours.
Step-by-step explanation:
135/45=3
How long does it take an account with a principal of $10,000 to earn $750 in interest if the rate is 15%?_ years
Answer:
The simple interest accumulated
on a principal of $ 10,000.00
at a rate of 3.875% per year
for 5 years is $ 1,937.50.
Step-by-step explanation:
I = $ 1,937.50
Equation:
I = Prt
Calculation:
First, converting R percent to r a decimal
r = R/100 = 3.875%/100 = 0.03875 per year,
then, solving our equation
I = 10000 × 0.03875 × 5 = 1937.5
I = $ 1,937.50
Answer:
The answer should be 1,1125,000 because 10,000x 15 x7.5= 1,1125,000.
Four times the sum of 14 and c is a squared?
Step-by-step explanation:
c = a²
4(14+c)
4(14 + a²)
not sure though^^
At a bookstore, the cost for a novel and a magazine is $8.27. The cost for 3 novels and 5 magazines is $20.22. Which pair of equations can be used to determine n, the cost of a novel, and m, the cost of a magazine? n + 5m = 8.27 3n + m = 20.22 n + 5m = 8.27, , 3n + m = 20.22, n + m = 8.27 3n + 5m = 20.22 n + m = 8.27, , 3n + 5m = 20.22, n + m = 20.22 3n + 5m = 8.27 n + m = 20.22, , 3n + 5m = 8.27, 3n + m = 8.27 n + 5m = 20.22
Answer:
n + m = 8.27; 3n + 5m = 20.22
Step-by-step explanation:
Let
Cost of the novel = n
Cost of the magazine = m
The cost for a novel and a magazine is $8.27.
n + m = 8.27 (1)
The cost for 3 novels and 5 magazines is $20.22
3n + 5m = 20.22 (2)
The pairs of equation to determine n, cost of the novel and m, cost of the magazine is
n + m = 8.27; 3n + 5m = 20.22
Combining (1) and (2)
HELP!!
does this graph represent a function!
The daily cost of hiring an Algebra tutor, y, for x hours can modeled using a linear function. The tutor charges a fixed traveling fee of $10, plus $30 per hour. The tutor will work for a maximum of 4 hours in one day. For one day of work, what is the domain of the function for this situation?
Answer:
40 and 130Step-by-step explanation:
Let the total amount be y
and let the number of hours be x
given that the fixed charge is $10
and the charge per hour is $30
also given is that the tutor will work for a maximum of 4 hours
therefore the total amount the tutor will earn is modelled as
y=10+30x
for 4 hours the tutor will earn
y=10+30*4
y=10+120
y=130
therefore the domain lie between 40 and 130
Pls help me on this problem I’m confused
Answer:
5 + 4 + 3 = 12
12 ÷ 6 = 2
he puts 2 cups in each glass
Help i need help.....
Answer:
6n + 3 - 3 = 9 - 3
6n = 6
n = 1
Step-by-step explanation:
Answer:
step one: subtract 3 on both sides 6n=6
then divide 6 on both sides n=1
Colin predicted whether he got answers right or wrong in his 50 question exam. He identified the 14 questions he thought he got wrong. It turns out that Colin got 5 questions right that he thought he got wrong. Colin also got a total score of 35 out of 50 in the test. What is the percentage accuracy he had with predicting his scores?
Number of questions Colin thought wrong, N = 14.
So, his score by his prediction will be, S = 50-14 = 36.
Now,
Number of questions which are actually wrong, n = 14 -5 = 9.
His actual score, s = 50 - 9 = 41.
Percentage accuracy is given by :
[tex]\%=\dfrac{Actual-Real}{Real }\times 100\\\\\%=\dfrac{41-36}{41}\times 100\\\\\%=12.195\%[/tex]
Hence, this is the required solution.
A tennis ball has a diameter of 2.7 inches. The tennis coach wants to fill her storage shed with tennis balls. If the storage shed is 14 feet wide, 15 feet long, and 10 feet high, how many tennis balls will she need to fill up the shed? (Vsphere=43πr3)
Given that,
The diameter of a tennis ball, d = 2.7 inches
Radius, r = 1.35 inches
The dimensions of the storage shed is 14 feet wide, 15 feet long, and 10 feet high.
Volume of the shed is, V = lbh
[tex]V=14\times 15\times 10\\\\V=2100\ \text{feet}^3[/tex]
We can convert radius from inches to feet :
1 foot = 12 inches
Radius, r = 0.1125 feet
Let there are x number of tennis balls that can fit in the shed. So,
[tex]x\times V_b=V_s\\\\\text{Where}\ V_b\ \text{and}\ V_s\ \text{volume of ball and shed}\\\\x=\dfrac{V_s}{\dfrac{4}{3}\pi r^3}\\\\x=\dfrac{2100}{\dfrac{4}{3}\pi \times (0.1125)^3}[/tex]
x = 352105.75 balls
or
x = 352106 balls
Hence, 352106 balls can fit in the storage shed.
Number each column from least to greatest for quart pint gallon
pint, quart, then gallon
least------------> greatest
Solve for c.
a(c + b)=d
Image Below
Answer:
second option
Step-by-step explanation:
Given
a(c + b) = d ← distribute parenthesis on left side
ac + ab = d ( subtract ab from both sides )
ac = d - ab ( isolate c by dividing both sides by a )
c = [tex]\frac{d-ab}{a}[/tex]
help please on math pls pls pls
Answer:
not that hard just think about it really hard
Step-by-step explanation:
Two adjacent vertices of a square are A(2, 3) and B(2, 8). What are the slopes of the lines that form the sides of the square?
Answer:
Slope is not defined.
Step-by-step explanation:
If [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex] are two points on a line then the slope of the line is given by [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]
Now find the slope of the side of a square such that two adjacent vertices of a square are A(2, 3) and B(2, 8).
Take [tex](x_1,y_1)=(2,3)\,,\,(x_2,y_2)=(2,8)[/tex]
Slope of the line [tex]=\frac{8-3}{2-2}=\frac{5}{0}[/tex]
Here, [tex]\frac{5}{0}[/tex] is not defined.
So, slope is not defined.
Answer:
TRUST ME I PUT UNDEFINED AND THATS WRONG BEATCHES
the answer is zero and undefined. because the given is undefined, and to form a square, the 4 angles must be equal to 90, and a perpendicular line to to a line that has an undefined slope is zero, so 2 edges have a zero slope and 2 edges have an undefined sloped. PERIODT
Step-by-step explanation:
1. find m 2. state the shortest side
Answer:
a. 72°
b. side DF
Step-by-step explanation:
The base angles of an isosceles triangle are congruent and equal to the complement of half the a.pex angle. The shortest side of the triangle is opposite the smallest angle.
a.∠F = 90° -(36°/2) = 72°
__
b.The smallest angle is 36°. The side opposite that angle is side DF.
_____
Additional comment
The relation we used to find the base angle is based on the fact that the sum of angles in a triangle is 180°. For angle F, with D = F, we have ...
D +F +36° = 180°
2F = 180° -36° . . . . . . substitute D = F, and subtract 36°
F = 90° -(36°/2) . . . . . divide by 2
The graph shows a school's profit for selling lunches
on pizza day. What is the profit for selling 100
lunches? You must show your work.
Answer:
150
Step-by-step explanation:
the line is straight hence gradient is constant
change in y/change in x=gradient
(45-0)/(65-50)
G=3
lunches is x axis
3=(y-45)/(100-65)
(3x35)=y-45
105=y-45
105+45=y
y=150
what is 321×23
one more thing
what is 3,829÷1221
Which verbal expression best describes the algebraic expression 2x ÷ 4? (4 points) Group of answer choices The quotient of two and some number times four The sum of two and some number divided by four The quotient of two times some number and four The product of some number and four divided by two
Answer:
C. The quotient of two times some number and four
Step-by-step explanation:
Given the expression 2x÷4
The x be the unknown number.
2x can be written as:
Product of some number and 2 OR two times an unknown number
2x÷4 will then be written as:
The quotient of two times a number and 4
The correct option to describe the equation is "The quotient of two times some number and four"
please help me i'm stuck
Answer:
5184
Step-by-step explanation:
Find the value of 9x + 4y when x = 4 and y=-5
Answer:
16
Step-by-step explanation:
substitute the values into the equation
9(4)+4(-5)
solve...
36-20=16
Answer:
16
Step-by-step explanation:
9x + 4y
Let x =4 and y = -5
9(4)+ 4(-5)
36 -20
16
can someone please help giving out brainliest
there are 80 people in a choir half the people are women
Answer:
40 women then? whats the question?
Step-by-step explanation:
theres no question just info
Answer:
67
Step-by-step explanation:
What is the solution to the equation
x = –6
x = –1
x = 1
x = 2
When we're solving equations, our prime goal is to isolate the variable. We can do this by using inverse operations to combine like terms.
Examples:
The inverse operation of addition is subtraction, and vice versa.The inverse operation of an exponent is taking the root of the exponent, and vice versa.Solving the Question[tex]\sqrt[3]{5x-4}=\sqrt[3]{7x+8}[/tex]
⇒ Here, both sides are being taken to the square root of 3. To remove this, we can raise both sides to the power of 3:
[tex](\sqrt[3]{5x-4})^3=(\sqrt[3]{7x+8})^3\\5x-4=7x+8[/tex]
⇒ Let's move our x variable to the right side of the equal sign and the numbers to the left side. Start by subtracting 5x from both sides:
[tex](\sqrt[3]{5x-4})^3-5x=(\sqrt[3]{7x+8})^3\\5x-4=7x+8-5x\\-4=2x+8[/tex]
⇒ Now, subtract 8 from both sides:
[tex]-4-8=2x+8-8\\-12=2x[/tex]
⇒ Finally, divide both sides by 2 to isolate x:
[tex]\dfrac{-12}{2}=\dfrac{2x}{2}\\\\-6=x[/tex]
Answerx = -6
Answer:
A
Step-by-step explanation:
EDGE 2019
Frank plans to spend not more than $100 on clothes shopping. He purchases a pair of jeans and three t-shirts. Each t-shirt cost $25 each. Let j be the cost of the pair of jeans. Which inequality below could be used to show how much money Frank spent on the pair of jeans?
Answer:
j ≤ 25
Step-by-step explanation:
Given that :
Total Planned amount on shopping should not be more Than $100
Items purchased : a pair of Jean and 3 shirts
Cost of t-shirt = $25 each
Cost of pair of Jean = j
Amount spent on pair of jeans=?
Total amount spent on shirt = $25 * 3 = $75
Amount left : $100 - $75 = ≤ 25
Hence amount spent on pair of jeans :
j ≤ 25
What is 10+12.50h=5+15h? Solve for h and show your work please.
Answer:
10+12.50h=5+15h
We move all terms to the left:
10+12.50h-(5+15h)=0
We add all the numbers together, and all the variables
12.50h-(15h+5)+10=0
We get rid of parentheses
12.50h-15h-5+10=0
We add all the numbers together, and all the variables
-2.5h+5=0
We move all terms containing h to the left, all other terms to the right
-2.5h=-5
h=-5/-2.5
h=+2
Step-by-step explanation:
please heart and give brainliest
Can someone help me with this?
Answer:
26880 i think
Step-by-step explanation:
I think it is i hope it helps
all real numbers greater than -5 are?
Line segment XY has the coordinates X(–12, –6) and Y(5, 6). What is the approximate length of line segment XY?
A.
21.1 units
B.
20.8 units
C.
13.9 units
D.
12.5 units
The approximate length of line segment XY is 20.8 units
How to calculate the distance between two pointsThe formula for calculating the distance between two points is expressed as:
A = √(x2-x1)²+(y2-y1)²
Given the coordinate points X(–12, –6) and Y(5, 6). The distance between them is expressed as;
XY = √(5+12)²+(6+6)²
XY = √(17)²+(12)²
XY = √269 + 144
XY = 20.8
Hence the approximate length of line segment XY is 20.8 units
Learn more on distance formula here; https://brainly.com/question/661229
A mom spent $560 on c clothes for her daughter for school. Write an expression that shows
the cost of one if they are all the same price?
Answer:
560÷c = p (p is price of one btw)
Step-by-step explanation:
Find the measure of angle T to the nearest tenth.
Answer: 33.6 degrees
Step-by-step explanation: