Answer:
1)Distance covered by cyclist=3.75 miles.
Time =0.3 hours.
Speed= Distance ÷Time
Speed =3.75÷0.3=12.5 miles per hour.
2) Speed = 12.5 miles per hour, Distance = 4.5 miles .
Time = Distance ÷Speed.
Time = 4.5÷12.5=0.36 hours.
Time taken to cover 4.5 miles is 0.36 hours.
is 11.25 mph
Step-by-step explanation:
For the function f (x) = 3 (x + 7), find -1().
Given:
The function is [tex]f(x)=3(x+7)^{\frac{1}{4}}[/tex].
To find:
The function [tex]f^{-1}(x)[/tex].
Solution:
We have,
[tex]f(x)=3(x+7)^{\frac{1}{4}}[/tex]
Substitute f(x)=y.
[tex]y=3(x+7)^{\frac{1}{4}}[/tex]
Interchange x and y.
[tex]x=3(y+7)^{\frac{1}{4}}[/tex]
Divide both sides by 3.
[tex]\dfrac{x}{3}=(y+7)^{\frac{1}{4}}[/tex]
Taking power 4 on both sides.
[tex]\left(\dfrac{x}{3}\right)^4=y+7[/tex]
Subtract 7 from both sides.
[tex]\left(\dfrac{x}{3}\right)^4-7=y[/tex]
[tex]y=\left(\dfrac{x}{3}\right)^4-7[/tex]
Substitute [tex]y=f^{-1}(x)[/tex].
[tex]f^{-1}(x)=\left(\dfrac{x}{3}\right)^4-7[/tex]
Therefore, the correct option is C.
Solve for r.
Ar + By = C
Answer:
r = (C - By) / A
Step-by-step explanation:
Ar + By = C
_________
-By -By
[Subtract both sides by By (Subtraction poe)]
Ar = C - By
________
(Ar) = (C - By)
[Use parenthesis to group both terms (Associative property of equality)]
________
÷A ÷A
[Divide both sides by A to isolate r so it can be solved (Division poe)]
________
r = (C - By) / A
The problem of (-1)(-1)(-1) would be negative True or False
Answer:
True
Step-by-step explanation:
There are an odd number of negative signs (3)
If there is an odd number it is negative, but if it is even then the result will be positive
Here's a deeper explanation
-1 times -1 is simply 1
Then 1 times -1 is -1
Our final answer is -1 so this is true.
Answer:
true
Step-by-step explanation:
Jessica and Mofor are selling pies for a school fundraiser. Customers can buy apple pies and
lemon meringue pies. Jessica sold 7 apple pies and 6 lemon meringue pies for a total of $169.
Mofor sold 3 apple pies and 6 lemon meringue pies for a total of $141. Find the cost each of one
apple pie and one lemon meringue pie.
Answer
L=20 A=7
Step-by-step explanation:
Does 1.414213562 round to the nearest tenth.
Hey there!
Yes, it does. It rounds to 1.4.
1.414213562 rounded to the nearest tenth is 1.4, since the next number is less than 5, the 4 stays the same. If the next number was a 5 or greater, it would be 1.5, instead of 1.4.
Hope this helps! Good luck and have great day!
Answer:
If I'm not.mistaken.I do believe the answer is 1.5
3/4 x 1/2
Help need it plss ;-;
Answer:
3/8
Step-by-step explanation:
3/4 divide 2 = 4÷2= 3/8
Answer:
3/4 * 1/2 = 3/8
The answer is 3/8
There are 40 students in the class. 15 of them likes to study English, 1/4 of the students likes to study mathematics and the remaining students likes to study science. What fraction of students likes to study English
*The length of the congruent sides of an isosceles triangle is 17cm. If the base of the triangle is 16 cm, find the length of the median.*
1️⃣ 18 cm
2️⃣ 8 cm
3️⃣ 15 cm
4️⃣ 8.5 cm
Answer:
The median is 15cm.
Step-by-step explanation:
Given that the The length of the congruent sides of an isosceles triangle is 17cm . the base of the triangle is 16 cm . And we need to find the median .
We know that in a isosceles triangle
All perpendicular bisector , altitude and median concide with each other.This means that the base will be divided into two equal parts For Figure refer to attachment .
Using Pythagoras Theorem :-⇒ BM² + AM² = AB²
⇒ (17cm)² = (8cm)² + AM²
⇒ 289 cm² = 64cm² + AM²
⇒ AM² = 289 cm² - 64 cm²
⇒ AM² = 225 cm²
⇒ AM = √225 cm²
⇒ AM = 15 cm .
Hence the measure of median is 15 cm .what is the perimeter?
Answer:
14
Step-by-step explanation:
because the side length are 5 and 5 and 4 which is 14.
plz mark the brainliest
10 points and brainliest
Answer: D
Step-by-step explanation:
.
What is the solution to this equation?
30.16 = 17.56 + 5x
Answer:
x = 2.52
Step-by-step explanation:
30.16 = 17.56 + 5x
30.16 - 17.56 = 5x
12.6 = 5x
12.6/5 = 5x/5
2.52 = x
do you ever realize that if bees go extinxt the bee movie would be historical fiction
Answer:
people arent afraid of the dark. they are afraid of not being alone in the dark.
Step-by-step explanation:
Answer:
wow i never thougt about that
Step-by-step explanation:
HELP ! PROBABILITY !
Easy
Answer:
The probability is zero
Step-by-step explanation:
Probability
There are 3 white counters and 2 black counters in a bag. One of them is chosen at random.
It's required to calculate the probability that a green counter has been chosen.
The probability of an outcome is defined as the frequency of the number of times the outcome occurs relative to the number of times that it could have occurred.
The equation to calculate the probability is:
[tex]P=\frac{f}{n}[/tex]
Where f is the number of favorable cases and n is the total cases.
Since there are no green counters in the bag, it's impossible to choose a green counter, thus f=0 out of n=5 total cases:
[tex]P=\frac{0}{5}[/tex]
P = 0
We have put the cross in the mark 0 on the probability scale below
Answer:
0Step-by-step explanation:
Which inequality describes all the solutions to -5x + 6 < 2(-3 - x)? A. X > 4 B. x < 0 C. x < 4 D. X > -9
Answer:
x>4
Step-by-step explanation:
-5x+6<2(-3-x)
-5x+6<-6-2x
-5x+6+2x<-6-2x+2x
-3x+6<-6
-3x<-12
Which expression can be used to find the total cost of 4 bags of apples at $3.30 per bag and 6 candy bars at $1.25 each? *
4(1.25) + 6(3.3)
10(3.3)
4(3.30) + 6(1.25)
4(3.30) - 6(1.25)
Answer:
a
Step-by-step explanation:
Answer:
4(3.30)+ 6(1.25)
Step-by-step explanation:
because you would multiply 4 and 3.30 and 6 ×1.25 :)
Chris found some colorful leaves under one tree. Under another tree, he
found twice as many. He gave 3 to his sister. Later be found 6 more under
a third tree. Write an expression that represents how many colorful
leaves Chris has.
PLEASE HELP ASAP this is due AT 4:00
Answer:
x+y-3+6
or
x+y+3
Find the first 5 terms of 6n+2
Answer:
2, 8, 14, 20, 26
Step-by-step explanation:
At n=0
2 x 0 +2=2
At n=1
6 x 1 +2=8
At n=2
6 x 2 +2 = 14
At n=3
6 x 3 +2 = 20
At n=4
6 x 4 +2 = 26
determine whether the triangles are similar by aa , ss , or sas ??
Answer:
1. AA
2. SSS
3. I´m not sure about this one, I´m sorry
4. Not similar
Step-by-step explanation:
This photo can help you identify!! I hope this helps
susan reads 130 pages of a book in 2.5 days if she reads the same amount each day how many pages did she read
Answer:
52 pages
Step-by-step explanation:
130/2.5=52
Answer:
52 pages per day
Step-by-step explanation:
130 divided by 2.5 is equal to 52. So therefore, 52 pages were read.
Hope this helps!!
what is the slope of the line that contains points (3,-9) and (-2,16)
Use the distributive property to expand the expression (8x + 3y) - (5z + 3)
Answer:
8x+3y-5z-3
Step-by-step explanation:
8x+3y-5z-3
Just multiply the second parenthesis with the minus for your answer.
Hurry! I need Help
Graph Y=5/3x-9
Where do i graph my points?
Answer:
start at -9 on the y line. then you go up by 5 from there and to the right by 3
Step-by-step explanation:
^
The ratio of books to magazines in the classroom is 7:3. If there are 28 books in the
classroom, how many magazines are in the classroom?
Answer:
Step-by-step explanation:
7 books.................................3 magazines
14 books.................................6 magazines
21 books................................9 magazines
28 books..............................12 magazines
of course we ca do it
7/3=28/x
x=(3*28)/7=12
the equation for simple interest is I= p r t (I=interest, p=principal, r=rate, t=time) Find the simple interest paid to the nearest cent for a loan of $1750 at 12% for 18 months (1.5 years).
Answer:
Simple Interest = $315
Step-by-step explanation:
The formula for Simple Interest
I = P× R × T
I=interest, p=principal, r=rate, t=time
P = $1750
R = 12% = 0.12
T = 1.5 years
I = $1750 × 0.12 × 1.5
I = $315
Try It!
» 3. Write the equation in slope-intercept form of the line that passes through
the points (5, 4) and (-1, 6).
Answer:
y=-1/3x + 17/3
Step-by-step explanation:
Just follow the slope-intercept form formula-
Formula: y=mx+b
Key:
y = y-coordinate
m = slope
x = x-coordinate
b = y-intercept
Let me know if you have any questions, hope this helps! (:
The entry ticket to a local football game costs $10 for an adult and $5 for a child. A group of 100 people paid an entry fee of $710. How many adults and how many children were there in this group?
Answer: Adults = 58
Children = 42
Step-by-step explanation:
Let adults be denoted as a
Let Children be denoted as c
a + c = 100 ...... i
10a + 5c = 710 ...... ii
Multiply I by 5
Multiply ii by 1
5a + 5c = 500 ...... iii
10a + 5c = 710 ...... iv
Subtract iii from iv
5a = 210
a = 210/5
a = 42
Since a + c = 100
c = 100 - 42 = 58.
Adults = 58
Children = 42
what is the distance between the points F(-3,8) and G(4,5)?
Find the scale factor of the similar polygons. Simplify your answer. (Hint: New/Old)
I need number 4 solved please
Answer:
I honestly do cannot read this, can you try zooming in and then taking the screen shot?
Step-by-step explanation:
6 over 35 + 4 over 7= ?
Answer:
hgfgdfsdfdgfhkjlkjhgfrderftryu
Step-by-step explanation:
Answer:
26/35
Step-by-step explanation:
6/35+4/7
you need to make the second fraction have the same denominator
to do this, you need to do 7 times 5 to make 35
times the numerator by the same
this would mean:
6/35+20/35=26/35
i hope i helped
please mark it as brainliest!!<3