Answer:
f⁻¹(x) = eˣ / 3
Step-by-step explanation:
f(x) = In(3x)
y = In(3x)
swap x and y: x = In(3y)
solve y: eˣ = 3y
y = eˣ / 3
f⁻¹(x) = eˣ / 3
Please help will give brainliest
Three bags of chips and sodas cost $12.50. Four bags of chips and two sodas cost $10.00. What is the cost of each item? ASAP pls!
Step-by-step explanation:
3c + 3s = 12.50
4c + 2s = 10.00
3S = 12.50-3c
s = 4.17 - c
4c + 2 (4.17-c) = 10.00
2c + 8.34 = 10.00
2c = 1.66
chips = 0.83
soda = 3.34
Area of composite shapes!!
Find the area
Its geometry
Due Tomorrow
Plz HURRY
Offering brainliest
36.Find the following using suitable identities.
a) (7a – 4b) (7a + 4b)
b) 501 x 502
Would appreciate if you send a pic of the solutions<3
Answer:
1) [tex]49 {a}^{2} - 16 {b}^{2} [/tex]
2) [tex]251502[/tex]
Step-by-step explanation:
a) Question :-[tex](7a - 4b)(7a + 4b)[/tex]
Identity used here :-[tex](a + b)(a - b) = {a}^{2} - {b}^{2} [/tex]
So,
[tex](7a + 4b)(7a - 4b)[/tex]
[tex]=> {(7a)}^{2} - {(4b)}^{2} [/tex]
[tex]=> 49 {a}^{2} - 16 {b}^{2} [/tex]
b) Question :- [tex]501 \times 502[/tex]
Identity used here :-[tex](x + a)(x + b) = {x}^{2} + (a + b)x + ab[/tex]
So,
[tex]501 \times 502 = (500 + 1)(500 + 2)[/tex]
[tex] = > {(500)}^{2} + (1 + 2)500 + 1 \times 2[/tex]
[tex] = > 250000 + 1500 + 2[/tex]
[tex] = > 251502[/tex]
The volume is ___ cubic centimeters.
Answer:
4.24
Step-by-step explanation:
i will mark brainiest if you explain please
Answer:
c,or d I think please be right
Martin painted 255 square feet of this
kitchen wall with į gallon of paint. If
he continues coverage at the same
rate, how many square feet can he
cover with 2 gallons of paint?
A 765 ft2
B 510 ft2
© 382.5 ft2
D 1,020 ft
Answer:
i dont know
Step-by-step explanation:
Find the measure of the arc.
A
146°
E
B
MABC = [ ? 1°
Answer:
i get mABC = 270°
Step-by-step explanation:
This is fairly straight forward once you the right angle symbol for the arc AC. Also realizing the 148° for mAB is not needed for this question. The 148° for mAB would be useful if you wanted to calculate arc mBC.
Remember there are 360° in a circle.
The arc mAC is 90°
The arc mABC is the rest of the circle. is the arc from A to B to C
arc ABC + arc AC is the full circle 360°
mABC + mAC = 360° mAC = 90°
mABC + 90° = 360° - 90° from both sides
mABC = 360° - 90°
mABC = 270°
The angle ∠ABC in the given circle will be 270°.
What is an angle?
An angle is a geometry in plane geometry that is created by 2 rays or lines that have an identical terminus.
Angle is very useful to measure any angular rotational motion for example if you have to find out the rotation among the circle then it cannot measure in length parameter such that meter inch so it will be measured as an angle in a unit of degree or radian.
In another word, the angle is the measurement of the angular distance for example for linear motion we have a meter inch but for angular rotation, we don't have the measurement so the angle is useful to measure the angular rotation.
Now since we know that the angle of complete rotation is 360°.
Now ∠ADC + ∠ABC = 360
Given that ∠ADC = 90°
∠ABC = 360° - 90° = 270°
Hence, 270° will be the correct answer.
For more about the angle
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somebody please help im giving 20 points and a brainliest !
Answer:
Price today= 3078
Price 10 years from today= 3877.88
Step-by-step explanation:
Price today= 3000 (1.026)= 3078
Price 10 years from today= 3000 (1.026)^10= 3877.88
Please Help!!!!!! You have twice as many nickels as pennies. you have $1.10. How many of each coin do you have? Solve each problem using a system of equations...
Martha has two jobs. One pays $15 per hour, and she works at that job 10 hours per week. The other job pays $13 per hour, and she works at that job 30 hours per week. How much money does she make per year?
Answer:
540$
Step-by-step explanation:
please help me! this is hard
Answer: 1430 girls
Step-by-step explanation:
In order to solve this we must take it step by step. So first things first. There are 12,481 people at this concert. If 8906 are adults we need to subtract to find out how many children there are. 12481-8906=3575. There are 3,575 children at this concert. Now if 3/5 of the children are boys then the other missing 2/5 must be the girls. There are a couple of ways to solve this but im going to go the direct route. multiply 3/5 by 3,575 to get 2,145 boys. Now if 2,145 out of 3,575 are boys then 3575-2145= 1430 girls
Let's sum up what we learned
1. 12,481 people are at a concert
2. 8906 adults are at this concert
3. 3,575 are children
4. 2145 are boys
5. Which means there are 1430 girls
A gardener has 100 feet of fencing in order to enclose a rectangular garden. The equation A(x)=x(50−x) gives the area of the garden whose width is x feet. What is a reasonable domain for this function? Explain.
Answer:
the answer is a
Step-by-step explanation:
A reasonable domain would be
−∞<x<∞
because
A(x)
is defined for all real numbers.
Justine earned $19,000 during the first year of her job at city hall. After each year, she received a 8.6% raise. Find her total earnings throughout her 20-year career.
Answer:
929,477.13
Step-by-step explanation:
Number of years, n = 20
Using the relation :
a(1- r^n)/ (1 - r) ;
where a is the first term, r is the common ratio and n is the number of years
a = 19000
r = 1 + 8.6% = 1.086
19000(1 - 1. 086^20) / (1 - 1.086)
19000(1 - 1.086^20) / (1 - 1.086)
−79935.0336930 / (1 - 1.086)
= 929,477.13
can sb please tell me the answer
Answer:
136 hope this helps!
please help! solve for the value of y
Answer:
26
Step-by-step explanation:
5y-3+2y+1=180
7y-2=180
7y=182
y=26
A student has four sticks of wood that measures 3inches 4 inches 5 inches and 6 inches can the student make a right triangle why or why not?
PLEASE HELP ME I need help and no body is answering and it sucks !! PLEASE ANSWER ⚠️⚠️
Answer:
Yes, the student can use three of these sticks to make a right triangle.
Step-by-step explanation:
The measure of four sticks = 3 inches, 4 inches, 5 inches and 6 inches.
What is the equation of the line through the origin and (3, 4)?
A. y = 3x
B. y = fx
C. y= 4x
D. y = 2
SUB
Answer:
a
Step-by-step explanation:
if 3and 4 origin it a would be your answer
A rubber ball is thrown against the pavement and bounces into the air. If the ball is airborne for 2.5 seconds, how long after it bounces upward does the ball reach its maximum height?
Answer:
Step-by-step explanation:
1/2 * 2.5
= 1.25 seconds
what is this equal to
[tex] \frac{a + 8}{2} = \frac{a - 4}{8} [/tex]
Please help me with the questions please ASAP
Answer:
x = 20
Step-by-step explanation:
You can solve this problem using similar triangles; you know the triangles are similar due to the AAA property because of the Corresponding Angles Theorem.
To find x, you need to identify what sides 8 and x correspond to:
8 corresponds to 14 (6 + 8)
x corresponds to (x + 15)
Now, you need to find the scale factor by dividing 14 by 8:
14 ÷ 8 = 7/4
At this point, you can write and solve an equation for x:
7/4x = x + 15
3/4x = 15 (subtract x from both sides)
x = 20 (multiply both sides by 3/4)
An urn contains four red marbles, and five blue marbles. What is the probability of selecting at random, without replacement, two red marbles?
A. 16/72
B. 20/72
C. 12/72
D. 20/81
Answer: C. 12/72
Step-by-step explanation: 4/9 (the total of red marbles out of the urn) times 3/8 ( the probability of picking a red marble and how many marbles would be left) = 12/72
Btw I need help answering the rest of the questions if you don’t mind sliding the answers!
Someone please help me its urgent
What is the equation of the directrix
Answer:
Step-by-step explanation:
y=-1
Use the distributive property to write an expression that is equivalent to 10(10x - 4).
Answer:
100x-40
Step-by-step explanation:
10*10x and 10* -4
The average length of a female dolphin is about 179 inches What is the length in feet and inches pleaseee help me I have been stuck on this questions for about 20 mins !
PLEASE HELP:). The branch of an isosceles triangle is 2.5 times longer than the base and the circumference of the triangle is 60 cm. Find the lengths of the midpoints of the triangle.
Answer:
Step-by-step explanation:
2.5x + 2.5x + x = 60
x= 10
2.5x = 25
the sides of the triangle are 25, 25, 10
I don't know what you mean by "midpoints of the triangle".
The elves can make 200 toys per day at the north pole. How many days will it take to make 5,800 toys?
Answer:
29 days.
Step-by-step explanation:
200 • 29 = 5800
Hope this helps
Answer:
29
Step-by-step explanation:
5,800 ÷ 200 = 29
On the number line, which point is closest to
A. A
B. B
C. C
D. D
Answer:
the answer is ç
Step-by-step explanation:
because π=3.14
What is 308 kg shared in the ratio 1 : 2 : 5?
Answer:
It will became like this.
38.5kg.77.kg192.5.kgHope this will help you.
Answer:
38.5, 77, 192.5
Step-by-step explanation:
x + 2x + 5x = 308
8x = 308
x = 38.5
38.5 + 2(38.5) + 5(38.5)
38.5 + 77 + 192.5 = 208
38.5, 77, 192.5
In the 7th grade, 165 students ride the bus to school. If there are 250 students in 7th grade, what percent rides the bus? Please explain too
Answer:
66 Percent of students rides the bus to school, which is approx 1/3 lol
Step-by-step explanation:
Have a nice day