Answer:
The length of the shortest edge of the box is 3 units
Step-by-step explanation:
Since the volume of the box is given by the function
V(x) = x³ + 5x² – 14x
Where V is the volume and x if the length of the shortest edge of the box.
To determine the length of the shortest edge of the box if it has a volume of 30 cubic units, we will put V(x) = 30 and then find the value of x.
30 = x³ + 5x² – 14x
∴ x³ + 5x² – 14x – 30 = 0
The solution to the cubic equation is shown in the attachments below.
x₁ = 3 , x₂ = – 1.55, and x₃ = – 6.45
Since the length cannot be negative, the length of the shortest edge of the box is 3 units.
John’s square garden has a perimeter of 26 ft. If John walks through the garden on the diagonal, how far did John walk? Round answer to the nearest tenth.
Answer:
9.19 ft
Step-by-step explanation:
Since it's a square, we know that all the sides are equal to 26/4 which equals 6.5. Then, we use the Pythagorean theorem to calculate the diagonal (since the diagonal is splitting the square into two right triangles). So we to a^2+b^2=c^2. So 42.25+42.25=84.5. The square root of 84.5 rounded to the nearest tenth is 9.19
Peter earns $ 12.40 each week for completing his chores. Ria earns 1.2 times as money per week as Peter. How much does peter earn each week.? Show your work.
Answer:
Ria earns 14.88 dollars each week
Step-by-step explanation:
Amount earned by peter every week = $12.40
If Ria earns 1.2 times as money per week as Peter, then;
Amount Ria earns = 1.2 * 12.40
Amount Ria earns = 14.88
Hence Ria earns 14.88 dollars each week
Plz help me will give crown.
the answer is -2/5 hope this helped
Write an equation representing the direct variation.
х
-2
3
4.
7
y
5
-7.5
-10
-17.5
1) k =
2)
Answer:
y = -2.5x
Step-by-step explanation:
The constant of variation = y/ x = 5/-2 = -2.5
Also -7.5 / 3 = -2.5
-10 /4 = -2.5 and so on
please help me! its about solving system by substitution
Answer:
Step: Solvex=4for x:
x=4
Step: Substitute4forxin2x+3y=14:
2x+3y=14
(2)(4)+3y=14
3y+8=14(Simplify both sides of the equation)
3y+8+−8=14+−8(Add -8 to both sides)
3y=6
3y
3
=
6
3
(Divide both sides by 3)
y=2
Answer:
x=4 and y=2
Step-by-step explanation:
Paul exercises for h hours a day for five days. Over the weekend, he exercises a total of 4.5 hours. What expression represents the number of hours Paul exercises in a full week? h /5 – 4.5 5 h + 4.5 7 h 5 + h + 4.5
Answer:
5 h+4.5
Step-by-step explanation:
I did on the test and got it right
what is the slope for (-12,-5),(0,-8)
Answer:
m= - 1/4
Step-by-step explanation:
yo somebody help me on this i will mark you has brainlist c: plz
Solve each equation.
A. (8.5) (-3) = a
B. (-7) + b = (-11)
C. c-(-3) = 15
D. d.(-4) = 32
PLEASE ANSWER! WILL GIVE BRAINLIEST.
The ratios 9:18, 12:24, 15:30, 18:36, and 21:42 form a pattern of
equivalent ratios in the table below.
Which is another ratio in this pattern?
A. 1:3
B. 6:12
C. 24:27
D. 28:49
Is 4 km greater than 5000meters pls pls pls help
Answer:
No its not
4km =4000m < 5000m
Step-by-step explanation:
hope it helps
Answer:
5000 meter>4km
Step-by-step explanation:
4km is= 4000meter so 5000 meters i greater than 4km
Monte is buying hot dogs and buns for the school carnival. hot dogs come in packages of 18 and buns come in packages of 20. he wants to have the dame number of each. How many packages of hot dogs should he buy?
A. 2
B. 5
C. 9
D. 10
E. 38
Hey there!
Monte will need 9 packages of hot dogs.
To do this, we can first find the LCM.
To do this, first you find the prime factors of 20: 2 x 2 x 5
Then, you find the prime factors of 18: 2 x 3 x 3
Multiply each number by the greatest number it occurs:
2 x 2 x 3 x 3 x 5
And you get the LCM, 180. This means that you can get 180 total hot dogs and 180 total buns.
Then, divide that by the number of hot dogs in a package, to get the number of packages needed: 180/20 = 9
9 packages of hot dogs are needed.
PLEASE HELP AND QUICK
Find the surface area of the triangular prism. Will mark brainliest!
Answer:
720 sq ft
Step-by-step explanation:
Formula:
2 B + P x H
Answer:
720 sq ft
Step-by-step explanation:
fourmula
2b+p×h
What is 16/24 in its simplest form?
Answer:
2/3
Step-by-step explanation:
16/24
4/6
2/3
Answer:
2/3
Step-by-step explanation:
16 ÷ 8 = 2
24 ÷ 8 =3
so the simplest form is 2/3
PLEASE HELP THANK YOU!
Answer:
the first one
Step-by-step explanation:
plz brainliest :)
Answer:
the first one
Step-by-step explanation:
Find the unit rate.
84 miles in 12 days
Unit rate:
mi :
day
Answer:
7/12 7 miles a day
Step-by-step explanation:
Helpppp!!!!!!!! Asappppp!!!!!
A. It will be twice as much as because the height is increased by 2
Is 1 a prime or composite number? Explain your answer with complete details
Hello there! ;)
1 is neither prime nor composite.
Prime numbers have 2 factors.
Composite numbers have 3 or more factors.
However, 1 has 1 factor.
Therefore, it's neither prime nor composite.
Hope this helps!
~Just a determined gal
#CarryOnLearning
[tex]MysteriousNature[/tex]
URGENT DUE IN 10 MINUTES!
You have 8 cups of flour. It takes 1 cup of flour to make 24 cookies. The function C(f) = 24f represents the number of cookies, C, that can be made with f cups of flour. Which set of ordered pairs represent points on the graph of C(f) = 24f?
Answer:
c(0) = 24*0 = 0
c(8) = 24*8 = 192
Your range is [0,192]
Step-by-step explanation:
Answer:
You have 8 cups of flour it takes 1 cup of flour to make 24 cookies the function c(f)=24f
c represents the number of cookies
f represents the cups of flour
You have 8 cups of flour, we can use only 0 to 8 cups of flour.
so domain f is 0 to 8 cups [0,8]
Now we find the range
1 cup of flour to make 24 cookies
So 8 cups of flour = 24* 8 = 192 cookies
using 8 cups you can make 192 cookies
So number of cookies is from 0 to 192
Range is [0,192
Step-by-step explanation:
Write an equation for the relationship shown in the table. E 0 2 3 -0.3 3.7 5.7
given log2 x=3/logxy 2 , express y in terms of x
Answer:
[tex]\bold{y=\dfrac{\sqrt[3]{\bold x}}x=\bold \big x^{-\frac23} }[/tex]
Step-by-step explanation:
[tex]\log_2x=\dfrac3{\log_{xy}2}\qquad\qquad\qquad\quad x>0\,,\ y>0\\\\\\\log_2x=3\cdot\dfrac1{\log_{xy}2}\\\\\\\log_2x=3\cdo\log_2(xy)\\\\\log_2x=\log_2(xy)^3\quad\iff\quad x=(xy)^3\\\\x=x^3y^3\\\\\dfrac{x}{x^3}=y^3\\\\y=\sqrt[\big3]{\dfrac{x}{x^3}}\\\\y=\dfrac{\sqrt[3]x}x[/tex]
{or: [tex]\dfrac{x}{x^3}=y^3\quad \implies\quad y=\left(\dfrac{x}{x^3}\right)^\frac13=\left(\big x^{-2}\right)^\frac13=\big x^{-\frac23}[/tex]}
fill the answer in the question mark
? / 10 = 24
answer : 240
you do 24 x 10 :)
THIS DOES NOT MAKE ANY SENSE
Answer:
The answer is 35
Step-by-step explanation:
It wants to know how many basketball and baseball players there are. If there are 20 basketball players and the ratio is 4:3 then you need to divide the number of basketball players by 4 then multiply by 3. Add 20 to that number and the answer is C
Answer:
35
Step-by-step explanation:
I came up with 35 because 20/4= 5, so we are multiplying players by 5. Similarly, 3x5=15 for baseball players. 20 basketball players plus 15 baseball players is 35. I hope this helps!
which unit would you use to measure the length of a soccer field
A. km
B. m
C. cm
D. mm
Answer:
b
why would you measure with something too big or too small?
Find the missing side length. Round to the nearest tenth.
11
8
To the nearest unit, what is the perimeter of this pentagon?
5
4
3
2
1
65
-3 -2 -1
2 3
4
بي ط ا
27 units
29 units
30 units
34 units
Answer:
The perimeter of the pentagon is;
29 units
Step-by-step explanation:
Let A, B, C, D, and E represent the vertices of the pentagon
The "x" and "y" coordinates of the vertices of the pentagon are given as follows;
A(-6, 2), B(-2, -2), C(5, -2), D(5, 2), E(-2, 5)
The length of the sides between each pair of coordinates can be found using the following formula;
[tex]l = \sqrt{\left (y_{2}-y_{1} \right )^{2}+\left (x_{2}-x_{1} \right )^{2}}[/tex]
Therefore, we have;
Length of segment AB = √((-2 - (2))² + (-2 - (-6))²) = 4·√2
Length of segment BC = √((-2 - (-2))² + (5 - (-2))²) = 7
Length of segment CD = √((5 - 5)² + (2 - (-2))²) = 4
Length of segment DE = √((5 - 2)² + (-2 - 5)²) = √58
Length of segment EA = √((5 - (2))² + (-2 - (-6))²) = 5
The length of the perimeter of the pentagon = 5+√58 + 4 + 7 + 4·√2 ≈ 29.2726273554 ≈ 29
The length of the perimeter of the pentagon ≈ 29.
7. JKLM is an isosceles trapezoid.
Find the median, ZM, and J.
Answer:
Median is 31, if you are talking about the parallel line in between JK and and ML
megan is trying to find the length of the segment using the Pythagorean Theorem
Part A : megan made one mistake in her work , which caused her to get the wrong answer what did she do wrong?
Part B : Calculate the correct length of the segment
Answer:
10
Step-by-step explanation:
To obtain the length of the segment :
a² + b² = c²
a = 8 ; b = 6
8² + 6² = c²
64 + 36 = c²
100 = c²
Square root of both sides :
Sqrt(100) = sqrt(c²)
10 = c
Mistake in the solution is that 6² = 36 and not 12
need some help here please
Answer:
Elimination
Step-by-step explanation:
The following system of equations can be easily solved by elimination as we can simply eliminate x-term.
Substitution will take a lot of time because you need to move to make either x-term or y-term as the subject then substitute in.
Graphing Method — You need to find the intercepts of both equations. You also have to convert into slope-intercept form which takes a lot of time.