Which function is the inverse of f(x) = 2x + 3?
Answer:
f(x inv)=-1/2x-3
Step-by-step explanation:
You pretty much just have to flip all the numbers to fractions and all the positives to negatives.
james went out for a long walk . He walked 3 2/5 of the mile. then he sat down to take rest . After that he walked 5/7 of a mile. how far did he walk together
Answer:
Altogether James walked [tex]4\frac{4}{35}[/tex] miles.
Step-by-step explanation:
The question involves mixed fractions. Mixed fractions are first converted into proper fractions and then any operation can be performed on them.
Given
Distance of first walk = [tex]3\frac{2}{5}[/tex] of a mile
Distance of second walk = 5/7
In order to find how much he walked altogether, we have to find the sum of both fractions.
[tex]Total\ distance = 3\frac{2}{5}+\frac{5}{7}\\= \frac{17}{5}+\frac{5}{7}\\=\frac{17*7}{5*7} + \frac{5*5}{7*5}\\=\frac{119}{35} + \frac{25}{35}\\=\frac{119+25}{35}\\=\frac{144}{35}\\=4\frac{4}{35}[/tex]
Hence,
Altogether James walked [tex]4\frac{4}{35}[/tex] miles.
An airplane flying with the wind takes 2 hours to travel a distance of 360 miles.
The return trip takes 3 hours flying against the wind.
What is the speed of the airplane in still air and how fast is the wind blowing?
Answer: still air is 150mph. The wind speed is 30mph.
Step-by-step explanation:
X=speed of the plane, Y=speed of the wind.
360/2hours=180
360/3hours=120
2x=180+120
2x=300
X=150
The airplane in still air is 150mph
Add together
X+y=180
150+y=180
Y=180-150
Y=30mph
The wind speed is 30mph
A piece of fabric costs $5.29 a yard. Which is an estimated cost of 16.3 yards of fabric? $21 $80 $165 $800 Mark this and return
PLEs
Answer: 80
Step-by-step explanation: 16.3×5.29=86.227
Answer:
The answer is B
Step-by-step explanation:
Also 1 ❤️= 1 GOOD LUCK TO EVRY WONE
HURRY PLEASE!!! I HAVE TO TURN THIS IN SOON!!!
I WILL GIVE YOU BRAINLIEST!!
the directions are on the picture!
i need an explanation on how you solved it too.
Answer: Didn't flip the greater than sign to lesser than.
Step-by-step explanation: When dividing an inequality by a negative the greater than or less than sign switches.
image
Identify a pair of parallel lines in the given figure.
Question 2 options:
A)
p and s
B)
r and q
C)
r and p
D)
r and s
The parallel lines are r and s.
What are Parallel lines?Parallel lines are those lines that are equidistance from each other and never intersect each other.
Given that;
There are 4 lines ae shown in figure.
Now,
Since, There are 4 lines ae shown in figure.
We know that,
Parallel lines are those lines that are equidistance from each other and never intersect each other.
And, Here p and s are intersect at a point.
Lines q and r are intersect at a point.
Lines p and r are intersect at a point.
And, Lines r and s are not intersect at any point and equidistance from each other.
Thus, The lines r and s are parallel lines.
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anyone give me a hand with this question
A 100-inch pipe is cut into two pieces. One piece is three times the length of the other. Find the length of the shorter piece.
PLEASE PLEASE HELP!!!!
Answer:
It's A or B but I think B
Step-by-step explanation:
Select the three ratios that represent the number of red cars to blue cars
Find the equation of a line that passes through the point (2,-5) and is perpendicular to the y-axis. Do not put any spaces in your answer.
Answer:
y=-5
Step-by-step explanation:
Equation of the line
Lines can be expressed in several forms. The slope-intercept form of the line is:
y = mx + b
Where m is the slope of the line and m is the y-intercept.
If the line is perpendicular to the y-axis, then it's a horizontal line. Horizontal lines have slope m=0, thus, the equation is:
y = b
To find the value of b, just substitute the given point:
-5=b
The equation of the line is:
y=-5
A mini bus can carry 8 students. How many mini buses will be needed to transport 38 students?
Answer:
5 buses
Step-by-step explanation:
you need to divide the number of students (38) by the number of students a mini bus can carry.
38 : 8 = 4.75
since they want to know how many buses will be needed to transport all students, you round 4.75 to 5
hope this helps!
In which of these cases is each stamp worth the most? 7 of the same stamp worth a total of $3.15 8 of the same stamp worth a total of $3.20 10 of the same stamp worth a total of $4.10 16 of the same stamp worth a total of $4.80
Answer:
0.45
Step-by-step explanation:
1. 3.15÷7=0.45
2. 3.20÷8=0.40
3. 4.10÷10=0.41
4. 4.18÷16=0.26
Answer:
c i think sorry if its not good
Step-by-step explanation:
Help please dhskksbsjsjsbsis
Answer: Here is the pic and so its 8.9 so it would be 9 because your rounding and I hope this helps :D
Divide Rational Expressions
In the following exercises, divide.
Answer:
[tex]\displaystyle \mathbf{\frac{5}{(c+4)}}[/tex]
Step-by-step explanation:
Division of Rational Expressions
When dividing two rational expressions like f(c) / g(c), it's usually easier to multiply the numerator by the reciprocal of the denominator: f(c) * (1/g(c)). The reciprocal is just flipping the numerator and the denominator.
Let's find the following division:
[tex]\displaystyle \frac{\frac{c^2-64}{3c^2+26c+16}} {\frac{c^2-4c-32}{15c+10}}[/tex]
First, we factor the polynomials where possible.
[tex]c^2-64 = (c-8)(c+8)[/tex]
[tex]3c^2+26c+16=(3c+2)(c+8)[/tex]
[tex]c^2-4c-32=(c-8)(c+4)[/tex]
[tex]15c+10=5(3c+2)[/tex]
Substituting:
[tex]\displaystyle \frac{\frac{c^2-64}{3c^2+26c+16}} {\frac{c^2-4c-32}{15c+10}}=\frac{\frac{(c-8)(c+8)}{(3c+2)(c+8)}} {\frac{(c-8)(c+4)}{5(3c+2)}}[/tex]
Multiplying by the reciprocal of the denominator:
[tex]\displaystyle \frac{\frac{c^2-64}{3c^2+26c+16}} {\frac{c^2-4c-32}{15c+10}}=\frac{(c-8)(c+8)}{(3c+2)(c+8)}\cdot \frac{5(3c+2)}{(c-8)(c+4)}[/tex]
Simplifying by (c+8)(3c+2)(c-8):
[tex]\displaystyle \frac{\frac{c^2-64}{3c^2+26c+16}} {\frac{c^2-4c-32}{15c+10}}=\frac{5}{(c+4)}[/tex]
Answer:
[tex]\displaystyle \mathbf{\mathbf{\frac{5}{(c+4)}}}[/tex]
Miguel is multiplying 5/8 by 1/2. Use the drop-down menu to complete the statement.
Answer:
5/8 x 1/2 = 0.3125 in decimal form
Step-by-step explanation:
Answer:
less than
Step-by-step explanation:
PLEASE HELPPPP ASAP IF YOU THIS
How many of each color ballon will be in each bouquest
plz answer this
Answer:
15
Step-by-step explanation:
is 98,376,751 an even or odd number
Answer:
it is an odd number
it could be even if it ended in 0, 2, 4, 6, and 8
Step-by-step explanation:
please give me brainliest
In the most recent NBA Finals series, Lebron James took 175 shots and made 80.
In his last NBA Finals series, Michael Jordan took 190 shots and made 85. Who had a better percentage?
Answer:
Michael Jordan
Step-by-step explanation:
190-85 =105
175-80=95
Answer:
Michael Jordan
Step-by-step explanation:
Question 3 (Fill-In-The-Blank Worth 5 points)
(01.03 LC)
What number should be placed in the box to help complete the division calculation?
Long division setup showing an incomplete calculation. 16 is in the divisor, 3426 is in the dividend, and 2 hundreds and 1 tens is written in the quotient. 3200 is subtracted from 3426 to give 226. An unknown value represented by a box is being subtracted from 226.
Numerical Answers Expected!
Answer for Blank 1:
2229Step-by-step explanation:
Answer:
The answer should be 16
HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPP
the product of two consecutive odd numbers is 1023
A triangle has two sides of length 5 and 11. What is the smallest possible whole-number
length for the third side?
The smallest possible whole number length for the third side is 7
Data obtained from the question1st length = 52nd length = 113rd length =?How to determine the smallest possible length of the 3rd sideCase 1
1st + 2nd > 3rd
5 + 11 > 3rd
16 > 3rd
3rd length < 16
Case 2
1st + 3rd > 2nd
5 + 3rd > 11
3rd > 11 - 5
3rd > 6
Thus, we have
6 < 3rd length < 16
Since the 3rd length is greater than 6, then the smallest possible length for the 3rd side is 7
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Top Tech adds 55% to the wholesale cost it pays for its inventory. Top Tech bought a wireless mouse for $24. What will be the retail price of the wireless mouse? Round to the nearest penny.
9514 1404 393
Answer:
$37.20
Step-by-step explanation:
Adding 55% to the cost means the cost is multiplied by 1+55% = 1.55.
$24 × 1.55 = $37.20
The retail price will be marked as $37.20.
Exercise 3.29. In a school there are four kindergarten classes, with 21, 24, 17 and 28 students. We choose one of the 90 kindergarten students randomly, and denote the number of students in her class by X. Find the expectation and variance of X.
Answer:
Expected mean = 23.2159
Variance = 15.89
Step-by-step explanation:
Given that :
Number of kindergarten students (X) :
21 + 24 + 17 + 28 = 90
P(X):
21/ 90 = 0.233
24/90 = 0.2667
17/90 = 0.1889
28/90 = 0.3111
X : ____ 21 ____24 _____ 17 ______ 28
P(x) : _ 0.233 _ 0.2667 __ 0.1889 __ 0.3111
E(X) = Σ[(p)*p(x)]
(21 * 0.233) + (24 * 0.2667) + (17 * 0.1889) + (28 * 0.3111) = 23.2159
Var(X) : Σ(x²*p(x)) - E(x)²
x² * p(x) = (21^2 * 0.233) + (24^2 * 0.2667) + (17^2 * 0.1889) + (28^2 * 0.3111) - 23.2159^2
554.8667 - 538.97801281
= 15.88868719
= 15.89
Suppose that the halflife of a substance is 250 years . If there were ir 100 the substance , (a) give an exponential model for the situation, and (b) how much wil years?
can anyone answer this please:(
1. After a party, Tyler's family has
3 6/8 pizzas leftover. Each family
member ate 3/8 of the left over
pizzas. How many family
members ate the leftover pizzas?
Answer:
10 members
Step-by-step explanation:
3 6/8 leftover = [tex]\frac{24+6}{8}\\[/tex] = 30/8 = 10 . 3/8
32^(x+4) = 64^(2x-1)
Answer:
Vamos a resolver la ecuación paso a paso.
32x+4=642x−1
Step-by-step explanation:
Resolver el exponente.
32x+4=642x−1
log(32x+4)=log(642x−1)(Sacar el logaritmo de ambos lados.)
(x+4)*(log(32))=(2x−1)*(log(64))
x+4=(
log(64)
log(32)
)*(2x−1)
x+4=1.2*(2x−1)
x+4=2.4x−1.2(Simplificar ambos lados de la ecuación)
x+4−2.4x=2.4x−1.2−2.4x(Restar 2.4x a ambos lados)
−1.4x+4=−1.2
−1.4x+4−4=−1.2−4(Restar 4 a ambos lados)
−1.4x=−5.2
−1.4x
−1.4
=
−5.2
−1.4
(Dividir ambos lados por -1.4)
x=3.714286
Solución:
x=3.714286
A triangle has side lengths of 15 millimeters, 10 millimeters, and 13 millimeters. What kind of triangle is it?
Answer:The triangle is acute
Step-by-step explanation:
Answer:
acute
Step-by-step explanation: