Answer:
41. f⁻¹(x) = -9x + 4
43. m⁻¹(x) = ∛(x-2)/4
Step-by-step explanation:
41. y = (4-x)/9
swap x and y: x = (4-y)/9
solve y: 9x = 4-y
y = -9x + 4
45. y = 4x³+2
x = 4y³+2
4y³ = x-2
y³ = (x-2)/4
y = ∛(x-2)/4
Let you do 42 and 46 by yourself
(1+5 to the 2)−16 1 over 2 to the power of 3
Answer:
[tex]{ \large{ \implies{ \sf{(1 + 5 {}^{2} ) - 16{ \bigg( }\dfrac{1}{2} { \bigg)} {}^{3} }}}}[/tex]
[tex]{ \large{ \implies{ \sf{26 - { \cancel{16 } \: {}^{2} }\times \dfrac{1}{ \cancel{8} }}}}}[/tex]
[tex]{ \large{ \therefore{ \sf{26 - 2 }}}=} \: { \large{{ \boxed{ \sf{ 24}}} \: \: ans.}}[/tex]
A group of scientists are doing a study of elephants in Africa. They take a random sample of 200 elephants, and reveal the data set below. They believe the population of elephants in the area is about 6 times the size of the random sample. What is the estimated total population of all elephants in the area?
Answer:
138
Step-by-step explanation:
i need the help alot
Answer:
{-5/4, 8}
Step-by-step explanation:
We are given (4u + 5)(8 - u) = 0. Solve for u by setting each of the factors (4u + 5) and (8 - u) equal to zero and solving each of the resulting equations:
4u + 5 = 0 leads to u = -5/4, and
8 - u = 0 leads to u = 8.
The solutions are {-5/4, 8}
HELP!! ASAP
Find the length of each line segment or object to the nearest half, fourth, or eighth inch.
How much will 5 ounces cost?
1.5 ounces of yogurt cost $2.40.
How much will 5 ounces of yogurt cost?
Answer:
ok.
Step-by-step explanation:
Answer:
$8
Step-by-step explanation:
first you have to find one
0.5 ounce = $2.40 ÷ 3 = $0.80
1 ounce = 0.8 × 2 = $1.60
5 ounces $1.60 × 5 = $8
Pick The Biggest Answer? 0.046 0.059 0.01 0.098
Answer:
0.098
Step-by-step explanation:
It should be obvious that 0.098 is bigger than 0.046 and 0.059, so let's focus on 0.01
0.01 = 0.010 and again it should be obvious that it's smaller than 0.098
How much simple interest will sean earn of $200 if he invest it for 3 years at 8% interest?
Answer:
$48
Step-by-step explanation:
He will earn $16 interest for one year. After 3 years, that will triple to $48
The percent increase of the airline ticket is_____ %
Answer:
61% increase if the airlines held a 50$ baggage fee
Step-by-step explanation:
what are the values of x and y
Answer:
x = 10, y = 12
Step-by-step explanation:
There is a 2:1 ratio between 16 and 8, alternate side lengths.
2x = 20
x = 10
2(6) = y
y = 12
simplify 8x^2-x-12x+2x2
Answer:
Simplify: 8 2 − 1 3 + 2 2
Step-by-step explanation:
Solution: 1 0 2 − 1 3
Give the difference in simplest form: 7/8 - 1/8 = _____
Answer:
6/8
Step-by-step explanation:
the answer is:
3/4
hope this helps :)
If I have 48 cards and and gave 10 to my friend and I have 38 left what what fractionbb be is my original number of cards
Question isn't well formatted :
If I have 48 cards and and gave 10 to my friend and I have 38 left. what fraction of original number of card do I have left.
Answer:
0.7917
Step-by-step explanation:
If I have 48 cards and and gave 10 to my friend and I have 38 left what what fractionbb be is my original number of cards
Given that :
Total number of cards = 48
Number given to friend = 10
Number of cards left = 48 - 10 = 38
Number of cards left / original number of cards
38 / 48
= 0.7917
can someone help me with this please?
Question #26
Simply (-45) ÷ (-9).
Answer:
5
Step-by-step explanation:
Answer:
5
Step-by-step explanation:
Because when there in the ( ) and there a negative they turn into a positive
so its positive Five
Hope this Helps and i'm Sorry if it doesn't
solve for x.cos(2x+9)=sin(x)
Answer:
x=27
Step-by-step explanation:
cos and sin are complementary angles. There theta or x add up to 90 degree. Using the formula.
cos x=sin y where x+y=90 let set up the equation.
[tex] \cos(2x + 9) = \sin(x) [/tex]
[tex]2x + 9 + x = 90[/tex]
[tex]3x + 9 = 90[/tex]
[tex]3x = 81[/tex]
[tex]x = 27[/tex]
To check our identity plug x in the top equation
[tex] \cos(2 \times 27 + 9)) = \sin(27) [/tex]
[tex] \cos(63) = \sin(27) [/tex]
they both equal about 0.45 so it is true.
x=27
I need help I need it ASAP!!
Answer:
50º
Step-by-step explanation:
A triangles angles = 180º
Angle A = 40º
Angle C = 90º (this is a right triangle)
40º + 90º = 130º
180º - 130 º = 50º
Lines a and b are parallel.
What is the measure of angle m?
Okay i dont know
Step-by-step explanation:
Answer:
55°
Step-by-step explanation:
180 - 125 = 55
This diagram is not really to scale much but that would be the math you'd use to find angle m
Pop said, "I have three grandchildren on my knee: Vera, Chuck and Dave. "Chuck is three years younger than Dave.
ABCD is a rhombus. Solve for the length of AB if the two diagonals lengths are: AC = 12 units, BD = 16 units.
ab=10 units
.......................
Plz help 20 points dont just steal points plz
Answer:
71.13
Step-by-step explanation:
The half area of a circle is A = 1/2 * pi*r^2 = 1/2 * pi * 3^2 or 9
The trapezoid is a rectangle and a triangle. Rectangle is 8*6 and the triangle is 6*(11 - 8) * 1/2
The total is 1/2 * pi * 9 + 8*6 + 6*(11 - 8) * 1/2 = 71.13
I need help with this fast please
Answer:
$19
Step-by-step explanation:
first subtract 3 from 51 and that =48
then divide 48 between the 3 people and that equals 16
lastly add Kadens tip of 3$ which will equal $19.
Find the area of the shaded region.
Answer:
351π cm^2.
Step-by-step explanation:
Area of shaded part = area of the large circle - area os small circle
= π * (13+7)^2 - π * 7^2
= 400π - 49π
= 351π.
What is the approximate difference in the circumference of a circle with a radius of 4 ft and the circumference of a circle with a radius of 6 ft?
Answer: 12.57 ft
Step-by-step explanation:
Circumference of circle with radius of 4ft.
= π * radius * 2
= 22/7 * 4 * 2
= 25.14 ft
Circumference of circle with radius of 6ft.
= 22/7 * 6 * 2
= 37.71 ft
Difference = 37.71 - 25.14
= 12.57 ft
Which of the following expressions is equivalent to
4( x+ 5)?
What number is 45% of 360?
Answer:
6 or 60. 45 is in it. Best I can explain
Answer:
162
Step-by-step explanation:
step 1. our output value is 360
step 2. we represent the unknown value with x
step3. from step 1 above, 360= 100%
step 4. similarity, x=45%
step 5. this result in a pair of simple equations
360=100%(1)
x=45%(2)
step 6. by dividing equation 1 and 2 and noting that both the RHS (right hand side) of both equations have the same unit (%); we have
360/x = 45/100
x=162
therefore, 45% of 360 is 162
hope this helps!!!
Help!!!!!
I will mark you brainliest
Answer:
The answer is b
Step-by-step explanation:
Expand the following. In other words, remove the parentheses (brackets):
-5(2x - 4y)
B -10x + 20y
A 10xy
C -10x - 20y
D 10x - 20y
Answer:
B
Step-by-step explanation:
-5(2x-4y)
-5*2x = -10y
-5*-4y = 20y
So, -10x+20y
Use the table below to determine the approximate height of the flag pole.
Answer:
B 17.5 ft
Step-by-step explanation:
tangent = opposite / adjacent
tan 35° = h / 25
multiply both sides by 25
h = 25 (tan 35°)
tan 35° = 0.70 (from your calculator)
h = 25 (0.70)
h = 17.51 ft.
Find the slope that passes through the two points. (9,3) and (6,7)
Answer:
m=4/-3
Step-by-step explanation:
the equation for slope (m) when given two points is (y2-y1)/(x2-x1)
we are given the points (9,3) and (6,7)
we can label the points:
x1=9
y1=3
x2=6
y2=7
now substitute into the equation
m=(7-3)/(6-9)
subtract
m=4/-3
the slope is 4/-3
hope this helps!
17. Maeve takes pictures of people as they
enter an amusement park. She makes $40 per
day, plus $4 for each person who buys a
picture. If Maeve made $80 yesterday, how
many people bought a picture?
A. 10 people
C. 40 people
B. 20 people
D. 15 people