Answer:
d = 18 mi
Step-by-step explanation:
Write a distance equation, dist = speed * time
:
Total dist = bike dist + train dist
d = 12(.5) + 24(.5)
d = 6 + 12
d = 18 mi
Which of the expressions is rational
Answer:
the third one
Step-by-step explanation:
the square root of 25 is 5. 5+2 = 7.
this is a rational number (the set of all integers and fractions).
the other 2 portions contain at least one element that is not rational. and so the sum with such a number is not rational.
45 and 7 are no square numbers, and therefore the square root of these numbers contains a neverending chain of digits after the decimal point without having any repeating pattern. these are real numbers but not rational numbers.
im being timed! HURRYYYYYYYYY
simplify:
Answer:
B. [tex]p^2+p-11[/tex].Step-by-step explanation:
Step 1:
[tex]((((3+(4*(p^2)))-5p)-3p^2)+4p)+8[/tex]Step 2:
[tex]((((3 + 22p^2) - 5p) - 3p^2) + 4p) + 8[/tex]Step 3:
Factoring [tex]p^2-p+11[/tex]The first term is, [tex]p^2[/tex] its coefficient is 1 .The middle term is, -p its coefficient is -1 .The last term, "the constant", is +11 Step-1 : Multiply the coefficient of the first term by the constant 1 • 11 = 11 Step-2 : Find two factors of 11 whose sum equals the coefficient of the middle term, which is -1 . -11 + -1 = -12 -1 + -11 = -12 1 + 11 = 12 11 + 1 = 12 Observation : No two such factors can be found !!Conclusion : Trinomial can not be factoredFinal Solution:
[tex]p^2 + p - 11[/tex]Suppose that 16 inches of wire cost 48 cents.
At the same rate, how much (in cents) will 42 inches of wire cost?
Answer:
the answer is 11.
if 16 inches of wire cost 48 cents your goal i to figure out how many inches of wire cots 33 cents to do so you have to find out how many cents each inch is. to do that you have to divide 48 by 16 and you get 3 so that mean that 1 inch costs 3 cents. after you figure that out you do 33 divided by 3 and you get 11. the answer is 11 inches costs 33 cents.
Step-by-step explanation:
the sum of the zeroes of polynomail ax² + bx + 4c is.
[tex] a) \:\: \frac{b}{a} \\ \\ b) \: \ \frac{ - b}{a} \\ \: \\ c) \: \frac{ c}{a} \\ \\ d) \: \: \frac{ - c}{a} [/tex]
say fast pls
Step-by-step explanation:
Q. the sum of the zeroes of polynomail ax² + bx + 4c is.
[tex]\mathbb\red{ \tiny A \scriptsize \: N \small \:S \large \: W \Large \:E \huge \: R}[/tex]
[tex] \\ \pmb{\boxed{\rm \leadsto\ b) \: \: \frac{ - b}{a} }}[/tex]
in the figure four quarters each of radius 2 m are removed from a rectangle find the perimeter
Answer:
in the figure four quadrants each of radius 2 m are removed from a rectangle.
I have attached the required figure, assuming the sides of a rectangle based on given measurement of quadrants.
Let the sides of a rectangle be 2 m × 4 m.
The radius of quadrant is 2 m ( given )
From given, we have
Area of figure = Area of 4 quadrants - Area of rectangle .
= 4 × π/4 × r² - l × w
= 4 × π/4 × 2² - 2 × 4
= 3.14 × 4 - 8
= 12.4 - 8
= 4.4 m²
Therefore, the area of the figure is 4.4 m²
Perimeter of figure = Perimeter of 4 quadrants - Perimeter of rectangle
= 4 × [ 0.5πr + 2r ] - 2 ( l + w )
= 4 × [ 0.5 × 3.14 × 2 + 2 × 2 ] - 2 ( 4 + 2 )
= 4 × [ 3.14 + 4 ] - 2 (6)
= 28.56 - 12
= 16.56 m
the perimeter of the figure is 16.56 m
There are 16 circles and 4 triangles. What is the simplest ratio of triangles to total shapes?
Answer:4:5
Step-by-step explanation:thank me if this is right<333
3(sin 0+ cos O) -(sin 0 + cos ) = 2(sin2 0 + cos²0)
Step-by-step explanation:
sin0 = 0
cos0 = 1
3(0 + 1) - (0 + 1) = 2(0+1)
3 - 1 = 2
2=2
Can I pls get some help
1,905.63 is the correct answer
What is half of 1/3? The options are: 2/3, 2 1/2, 4/9, and 2 and 2 halves
Answer:
1/6Step-by-step explanation:
What is half of 1/3? The options are: 2/3, 2 1/2, 4/9, and 2 and 2 halves
1/3 * 1/2 =
1/6
it is a proper fraction, it cannot be written as a mixed number.
Which inequality represents the graph below?
Answer:
The answer is B
the shaded part is below which signifies a less than sign
so you can cross out options A and C
now make y=0
for option B, it will give √Xless than or equal to √4
for option D, it will give √4 less than or equal to √x
to bring √x to the other side, the inequality sign will change to greater than
Therefore the answer is B
In which way are mercury n Venus similar ?
they both small and Rocky
Answer: they are both small and rocky.
Step-by-step explanation:
This histogram below shows how long students is a class slept the night before. How many student slept less than 12 hours?
Answer:
18 students
Step-by-step explanation:
Assuming there are 21 students in the class,
3 of them slept for 12 - 15 hours
8 of them slept for 8 - 11 hours
8 of them slept for 4 - 7 hours
2 of them slept for 0 - 3 hours
Now we just add the number of students that slept under 12 hours
8 + 8 + 2 = 18 students
Hope this helps!
simultaneous equations
5x-6y=16
3y+2y=4
Answer:
[tex]\left \{ {{x=4\frac{4}{25}} \atop {y=\frac{4}{5}}} \right.[/tex]
Step-by-step explanation:
[tex]\left \{ {{5x-6y=16} (1)\atop {5y=4} (2)} \right.[/tex]
[tex]\therefore y=\frac{4}{5}[/tex]
Substitute into equation (1)
[tex]5x-6*\frac{4}{5}=16[/tex]
[tex]5x-\frac{24}{5}=16[/tex]
[tex]25x-24=80\\25x=104\\x=\frac{104}{25}\\=4\frac{4}{25}[/tex]
Find the measure of the arc.
42 degrees
84 degrees
21 degrees
81 degrees
honestly I needed help with this too
4y(5) I would appreciate if you would answer this for me!
Answer:
4y(5) is basically 4y multiplied by 5. 4 x 5 = 20 then add the coefficient "y".
4y(5)= 20y
- 8th Grade Math -
Solve the system of equations:
2x - 4y = 10, x = 2y + 5
Answer:
All real numbers
Step-by-step explanation:
Since x=2y+5, and 2x-4y=10, substitute 2y+5 for x into 2x-4y=10
2(2y+5)-4y=10
Use distributive prop.
4y+10-4y=10
10=10
Since both sides of the equation are always equivalent,
All real numbers work, since the two equations are the same line.
What is the missing number in the following equation? 3 9/10 + 5 1/ = 9 1/15
Answer:
C. 6
Step-by-step explanation:
:D
Answer:
(C). 6
Step-by-step explanation:
[tex]3\frac{9}{10}[/tex] + [tex]5\frac{1}{x}[/tex] = [tex]9\frac{1}{15}[/tex]
[tex]5\frac{1}{x}[/tex] = [tex]9\frac{1}{15}[/tex] - [tex]3\frac{9}{10}[/tex] = [tex]6\frac{2-27}{30}[/tex] = [tex]5\frac{32-27}{30}[/tex] = [tex]5\frac{5}{30}[/tex] = [tex]5\frac{1}{6}[/tex] ⇒ x = 6
Jamie had 150 to go shopping. she bought the shoes were $75 and the jacket was 40% the cost of the shoes. How much money did jamie have left over
Answer:
$45
Step-by-step explanation:
shoes=$75
jacket=40% of shoes
=2/5x75
=$30
total=$75+$30=$105
change=$150-$105=$45
Answer:
She has $30 dollars left over.
Step-by-step explanation:
We already know she spent $75 on the shoes. So, if the jacket was 40% of what the shoes cost, we can start solving.
First, we have to find what 40% 0f 75 is, we can do this by simply multiplying 75 by 0.4 (40% as a decimal) and then subtracting the product from 75. 75 x 0.4 = 30. 75 - 30 = 45.Now we can add to get the total cost. 45+75=120. She spent $120.Now we subtract 120 from 150 and get 30.Therefore, she has $30 leftover.
Hope this helps!!
Shape A has a perimeter of 36 feet and on of the side lengths is 12
feet. Shape B has a perimeter of 60 feet. What is the corresponding
side length for shape B?
The perimeter of a shape is the sum of its side lengths
The corresponding side length for shape B is 20 feet
How to determine the lengthThe length-perimeter ratio is given as:
Ratio = Length : Perimeter
For both shapes, we have:
12 : 36 = Length : 60
Express as fraction
[tex]\frac{12}{36} = \frac{Length}{60}[/tex]
Multiply both sides by 60
[tex]Length = \frac{12}{36} * 60[/tex]
[tex]Length =20[/tex]
Hence, the corresponding side length for shape B is 20 feet
Read more about perimeter at:
https://brainly.com/question/17297081
A spinner is divided into five sections numbered 1 through 5. Juana records the number the spinner lands on for each of 50 spins. She computes and graphs the relative frequencies for each number. Which of the following describes the probability distribution? A bar graph entitled Relative Frequency of Numbers Spun has x on the x-axis and Probability on the y-axis. The probability of 1 is 0. 5; 2 is 0. 12; 3 is 0. 12; 4 is 0. 12; 5 is 0. 12. Constant symmetric negatively skewed positively skewed.
The distribution of the probability of the given data is a Positive Skewed Probability distribution.
Given to us
A spinner is divided into five sections numbered 1 through 5. Juana records the number the spinner lands on for each of the 50 spins. She computes and graphs the relative frequencies for each number
What is a Probability distribution?It is a type of distribution in which the distribution has a constant probability, therefore, the probability of each event occurring is equal.
What is symmetric distribution?Symmetric distribution is the type of distribution where the left side of the distribution and the right side of the distribution are mirror images to each other, therefore, they are symmetrical.
What is Negatively Skewed Probability distribution?Negatively Skewed Probability distribution is a type of distribution of the probability where the right side(tail) of the distribution is more concentrated than the right side.
What is Positive Skewed Probability distribution?Positive Skewed Probability distribution is a type of distribution of the probability where the left side of the distribution is more concentrated than the right side.
Which of the following describes the probability distribution of the given data?Since in the given graph probability of every number occurring from 2 to 5 is equal to 0.12(12%), while the probability of number 1 occurring is 0.5(50%).
Thus, the distribution of the probability is towards the right end of the graph.
Hence, the distribution of the probability of the given data is a Positive Skewed Probability distribution.
Learn more about Probability Distribution:
https://brainly.com/question/795909
Answer:b
b b b bb b b b b b b b b b b b b b b b b b b b b b b b b b b b b
Step-by-step explanation:
2 Are 3(x – 4) – 2(2.5x - 1) and -2(x + 5) equivalent expressions?
Answer:
Equivalent expressions
Step-by-step explanation:
3(x – 4) – 2(2.5x - 1)
3x - 12 -5x +2
-2x - 10
and -2(x + 5)
-2x - 10
Yes, They are Equal
What is the value of the 3rd iterate if x0 = 2.4 Carry out your answers to the 5th decimal place
Answer:
I think it's 2.45111
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
2.44949
At Dapper Dave's annual end-of-season sale, every necktie in the shop gets marked down. Dillon purchased 6 neckties during the sale. Each necktie cost $5 less than its full price. He paid a total of $162. What is the cost of each necktie at full price?
Answer:
6 times 5 = 30
the total is $162
162 + 30 = $192 at full price
Step-by-step explanation:
CORRECT ANSWER GETS BRAINLIESTTTT!!!!!
Julia's school is selling tickets to the annual dance competition. On the first day of ticket sales
the school sold 5 senior citizen tickets and 9 student tickets for a total of $149. The school took
in $103 on the second day by selling 7 senior citizen tickets and 3 student tickets. Find the price
of a senior citizen ticket.
The price of a senior citizen ticket is [x] dollars.
Senior tickets (x)
Child tickets (y)
First day: 3x + 5y = 70
second day: 12x + 12y = 216
Solve the system of equations (use elimination)
Multiply first equation by -4 -4(3x + 5y = 70), which makes it
-12x - 20y = -280
(+)12x + 12y = 216 add to second equation
-8y = -64
divide by -8. y = 8
Plugin the y value to either equation ( I will choose first equation)
3x + 5(8) =70
3x+ 40 = 70
3x = 30
x = 10
Senior tickets are $10, child tickets are $8
Simplify the fraction below
Answer:
5/28
Step-by-step explanation:
First you multiply across,
5 · 2 = 10
8 · 7 = 56
Then after multiplying, you will get the fraction, 10/56.
You can simplify that into 5/28.
4 times what eqwals 20
Answer: 5
Step-by-step explanation:
4 times 5 equals 20.
I hope this helps!
help me please im failing
Answer:
I think it might be option 3
Step-by-step explanation:
sorry if I’m wrong
can someone answer this ITS DUE TOMORROW
Answer:
a-x
b-/
Step-by-step explanation:
64/4x4=64
625x25/25=625
4. Find the value of x.
(4x - 10)
Answer:
x = 20°Step-by-step explanation:
We know,
The angle of a straight line is 180°
therefore,
90 + (4x - 10) + x = 180°5x = 180 - 90 + 105x = 190 - 905x = 100x = 20°Hope it helps !!Peter also earns a certain amount per hour. The table shows the amount of money, in dollars, he earns in a given number of hours. Write the linear equation for this situation, where y represents the money earned, in dollars, and x represents the number of hours worked.
Time (hours) Money Earned (dollars)
4 44
8 88
12 132
