Answer: b I think
Step-by-step explanation:
Which best describes the classification for the
following number set?
{3, 6, 12, 35, 56}
I. Rational numbers
II. Integers
III. Whole numbers
I only
III only
II and III only
I, II, and III
Answer:
1, 2, and 3
Step-by-step explanation:
If you are 600 m from a batter when you see him hit a ball, how long will you wait to hear the sound of the bat hitting the ball? (at 20ºC)?
Speed of sound at 20ºC =?
time =?
Answer:
The speed of sound at 20°C is 343.42 m/s.
You have to wait 1.75 seconds to hear the sound of the bat hitting the ball
Step-by-step explanation:
Speed of Sound
The speed of sound is not constant with temperature. Generally speaking, the greater the temperature, the greater the speed of sound.
The approximate speed of sound in dry air at temperatures T near 0°C is calculated from:
[tex]\displaystyle v_{\mathrm {s} }=(331.3+0.606\cdot T )~~~\mathrm {m/s}[/tex]
The air is at T=20°C, thus the speed of sound is:
[tex]\displaystyle v_{\mathrm {s} }=(331.3+0.606\cdot 20 )~~~\mathrm {m/s}[/tex]
[tex]v_{\mathrm {s} }=343.42\ m/s[/tex]
The speed of sound at 20°C is 343.42 m/s.
To calculate the time to hear the sound after the batter hits the ball, we use the formula of constant speed motion:
[tex]\displaystyle v=\frac{d}{t}[/tex]
Where d is the distance and t is the time. Solving for t:
[tex]\displaystyle t=\frac{d}{v}[/tex]
Substituting the values v=343.42 m/s and d=600 m:
[tex]\displaystyle t=\frac{600}{343.42}[/tex]
t = 1.75 s
You have to wait 1.75 seconds to hear the sound of the bat hitting the ball
The marked price of a machine is $1200. How much will it cost if there is a discount of 20%? *
Answer:
discount amount=20%of mp
=240
now sp=mp-discount=1200-240=960
The position of an open-water swimmer is shown in the graph. The shortest route to the shoreline is one that is perpendicular to the shoreline. Write an
equation that represents this path.
*attachment contains the omitted graph
Answer:
[tex] y = -\frac{4}{3}x + 9 [/tex]
Step-by-step explanation:
The equation that represents the path of the swimmer to the shoreline can be represented in the slope-intercept form, given as [tex] y = mx + b [/tex].
Where,
Slope (m) = the negative reciprocal of the slope of the shoreline, since it is perpendicular to it = ??
y-intercept (b) = ??
Find the slope of the shoreline using, (0, 1) and (4, 4):
[tex] m = \frac{y_2 - y_1}{x_2 - x_1} = \frac{4 - 1}{4 - 0} = \frac{3}{4} [/tex].
Since the slope of the shoreline is ¾. The slope of the path of the swimmer would be the negative reciprocal of ¾.
The negative reciprocal of ¾ = -⁴/3.
The slope of the swimmer's path = -⁴/3.
Using the coordinate of the point of the swimmer (6, 1), and the slope of the path, we can find b, the y-intercept of the path.
Substitute x = 6, y = 1 and m = -⁴/3 into y = mx + b, to find b.
Thus:
1 = (-⁴/3)(6) + b
1 = -8 + b
Add 8 to both sides
1 + 8 = b
9 = b
b = 9
Substitute m = -⁴/3 and b = 9 into y = mx + b.
✅The equation that represents the path would be:
[tex] y = -\frac{4}{3}x + 9 [/tex]
sarah drives at an averadge speed of 58 mph for 4 hours. How many miles does Sarah drive?
Answer:
232 miles
Step-by-step explanation:
Multiply 58 by 4 equals 232
Can i have brainliest pls?
Answer:
The answer is 232
Step-by-step explanation:
Because what you would do is You would multiply 58 times 4 because you want to know how many miles she drove.
Simplifying 84 - (16 - 8) + 5
Answer:
81
Step-by-step explanation:
use pemdas
Answer:
84-(16-8)+5
= 81
Step-by-step explanation:
A rock show is being televised. The lead singer, who is 75 inches tall, is 15 inches tall on a TV monitor. The image of the bass player is 13 inches tall on the monitor. How tall is the bass player?
Answer:
The bass player is 65 inches tall.
Step-by-step explanation:
15 inches is 20% of 75, so the monitor reduces their height by 20%. 13 is 20% of 65, so the bass player must be 65 inches tall.
A store has apples on sale for $6.00 for 4 pounds. If an apple is approximately 5 ounces, how many apples can you buy for $24.00? Complete the explanation.
Answer:
about 19 apples
Step-by-step explanation:
Answer:
51
Step-by-step explanation:
What is the sum of 8 + (12)? A.-20 B.-4 C.4 D.20
Answer:
20
Step-by-step explanation:
12+8=20
which statement best describes the function below
Answer:
hnb nhbsmwmwnd
Step-by-step explanation:
What is the expression for "the sum of 8 times a number and two"?
-3mn+4m-3 when m=2 and n=-4
Answer:
29
Step-by-step explanation:
m = 2 and n = -4
-3mn + 4m - 3
-3(2)(-4) + 4(2) - 3
-6(-4) + 8 - 3
24 + 8 - 3
32 - 3 = 29
[tex]\huge\boxed{29}[/tex]
Solution Steps:______________________________
1.) Fill in the variables with the information given:[tex]-3(2)(-4)+4(2)-3[/tex]
- M = 2
- N = -4
2.) Multiply:[tex]-3[/tex] × [tex]2=-6[/tex][tex]4[/tex] × [tex]2=8[/tex]- The reason we multiply first is due to Order of Operations or PEMDAS: Parenthesis, Exponents, Multiplication, Division, Addition, Subtraction.
- When we see y(x) this just means whatever number or variable is before the parenthesis, you multiply it by that.
Equation at the end of Step 2:
[tex]-6(-4)+8-3[/tex]3.) Multiply again:[tex]-6[/tex] × [tex]-4=-24[/tex]- We do this once more because we had one last parenthesis.
Equation at the end of step 3:
[tex]24+8-3[/tex]4.) Add:[tex]24+8=32[/tex]Equation at the end of Step 4:
[tex]32-3[/tex]5.) Subtract: [tex]32-3=29[/tex]______________________________
A house sold for $275,100.00. The buyer's real estate agent earned a commission of $11,004.00, and the seller's real estate agent earned a commission of $6,877.50. What was the commission rate of each agent?
Answer:
Buyer's real estate agent's commission rate = 4%
Seller's real estate agent's commission rate = 2.5%
Step-by-step explanation:
Given that:
Amount for which the house was sold = $275,100.00
Earnings by buyer's Real Estate Agent = $11004.00
Earnings by seller's Real Estate Agent = $6,877.50
To find:
The commission rate of each agent = ?
Solution:
Commission rate can be calculated by finding the percentage for both the real estate agents with the amount for which the house was sold.
i.e.
[tex]\text{Rate of Buyer's agent } = \dfrac{\text{Earnings of Buyer's agent}}{\text{Amount for which the house was sold}}[/tex]
[tex]\Rightarrow \dfrac{\$11004.00}{\$275,100.00}\times 100 = 4\%[/tex]
[tex]\text{Rate of Seller's agent } = \dfrac{\text{Earnings of Seller's agent}}{\text{Amount for which the house was sold}}[/tex]
[tex]\Rightarrow \dfrac{\$6,877.50}{\$275,100.00}\times 100 = 2.5\%[/tex]
Therefore, the answer is:
Buyer's real estate agent's commission rate = 4%
Seller's real estate agent's commission rate = 2.5%
iff (x) = 4x3 + 3x2 - 5x + 20 and g(x) = 9x3 - 4x2 + 10x - 55, what is (g- f)(x)?
13x3 - x2 + 5x - 35
5x3 + x2 + 5x + 35
ОА
OB
- 5x3 + 7x2 - 15x + 75
5x3 - 7x2 + 15x - 75
Answer:
(g-f)(x) = 9x³ - 4x² + 10x - 55 - [ 4x³ +3x² - 5x + 20]
Step-by-step explanation:
Find the slope of the line between the points (0, -4) and (2, 8).
Answer: The slope is 6.
what is the reciprocal of 4 3/7?
Answer:
0.22580645161?
Step-by-step explanation:
A surf shop charges $6 to rent a wetsuit and $12 per hour to rent a surfboard. Write a function to model the cost, c, to rent a wetsuit and surfboard for h hours. Enter the correct function in the box.
C = 6 + [tex]12^{x}[/tex]
The required function to model the cost is given as c = 6h + 12h.
Given that,
A surf shop charges $6 to rent a wetsuit and $12 per hour to rent a surfboard. To write a function to model the cost, c, to rent a wetsuit and surfboard for h hours.
Functions are the relationship between sets of values. e g y=f(x), for every value of x there is its exists in a set of y. x is the independent variable while Y is the dependent variable.
here,
According to the question,
Rent on a wetsuit for h hours = 6h
Rent on a surfboard for h hours = 12h
Total rent, c = 6h + 12h
Thus, the required function to model the cost is given as c = 6h + 12h.
Learn more about function here:
brainly.com/question/21145944
#SPJ2
The slope intercept of y=10x-5
Answer:
The slope is 10
The y-intercept is -5
Answer:
Since y=10x-5 is already written in slope-intercept form, I am assuming you want the slope and y-intercept. Slope is 10, and the y-intercept is (0,-5)
Step-by-step explanation:
Please I need this ASAP
Answer: I believe the answer is C
Step-by-step explanation:
4x3 what is 4x3 I really want to know
Answer:
The answer to 4x3 is 12
same as adding 4 thee times!
4 plus 4 plus 4 equals 12
Answer:
4X3=12
Step-by-step explanation:
It's like adding 4 3 times
Keith rented a truck for one day. There was a base fee of $17.99, and there was an additional charge of 97 cents for each mile driven. Keith had to pay $137.30 when he returned the truck. For how many miles did he drive the truck? miles
Answer:
216 miles
Step-by-step
ex15.95+.73x=173.63
.73x=173.63-15.95
.73x=157.68
x=157.68/.73
x=216 miles driven.
PROOF;
15.95+.73*216=173.63
15.95+157.68=173.63
173.63=173.63
Answer: Keith drove the truck for 123 miles
Step-by-step explanation:
17.99+0.97m=137.30
Subtract 17.99 on both sides:
17.99-17.99+0.97m=137.30-17.99
0.97m=119.31
Divide 0.97 on both sides:
0.97m/0.97=119.31/0.97
m=123 miles
Find the slope of the line.
Help pleasee!!
Answer:
4/4
Step-by-step explanation:
y=4 x+1
4 hope that helps!!
don´t forget to thank and Brainliest.
Which expression is equivalent to 75 + 24?
3 (25+8)
25 (3 + 24)
5 (70 + 24)
3(75 +8)
Answer:
The expression that is equivalent to 75 + 24 is 3(25+8)
Step-by-step explanation:
When you add 75 and 24
you get 99.
The equivalent expression:
First you do what's in the paranthese. Add 25 and 8 is get 33. After you get that simply multiple 33 and 3 to get 99.
1057 is not a perfect square
Answer:
Are you asking or telling? Bc it looks like ur telling
Step-by-step explanation:
What method can be used to write the equation of a line in slope-intercept form given two points?
A: Find the slope using the formula m = StartFraction y 2 minus y 1 Over x 2 minus x 1 EndFraction, and then substitute one point and the slope into the equation y = m x + b to find the y-intercept.
B: Find the slope using the formula m = StartFraction x 2 minus x 1 Over y 2 minus y 1 EndFraction, and then substitute one point and the slope into the equation y = m x + b to find the y-intercept.
C: Find the y-intercept using the formula m = StartFraction y 2 minus y 1 Over x 2 minus x 1 EndFraction, and then substitute one point and the y-intercept into the equation y = m x + b to find the slope.
D: Find the y-intercept using the formula m = StartFraction x 2 minus x 1 Over y 2 minus y 1 EndFraction, and then substitute one point and the y-intercept into the equation y = m x + b to find the slope.
Answer: A: Find the slope using the formula m = StartFraction y 2 minus y 1 Over x 2 minus x 1 EndFraction, and then substitute one point and the slope into the equation y = m x + b to find the y-intercept.
Answer:
Answer: A: Find the slope using the formula m = StartFraction y 2 minus y 1 Over x 2 minus x 1 EndFraction, and then substitute one point and the slope into the equation y = m x + b to find the y-intercept.
Step-by-step explanation:
Hope i could help
6th grade math i mark as brainliest
Answer:
8
Step-by-step explanation:
I have to write 20 words but the answer is 8 :)
A sketch artist sells on demand portraits and name doodles at the state fair. The artist has a personal maximum of 40 creations per day. With his current paper supply the artist is equipped to create up to 30 portraits and up to 20 name doodles. If the artists profit is $10 on each portrait and $20 on each name doodle, how many of each item should he aim to sell to maximize his profit?
Answer:
profit will be maximized by making 20 doodles and 20 paintings = ($10 x 20) + ($20 x 20) = $600
Step-by-step explanation:
we have to maximize the following equation:
$10P + $20D
where:
P = number of portraits
D = number of doodles
the constraints are:
P + D ≤ 40
P ≤ 30
D ≤ 20
we do not need to use solver or any other type of linear programming tool to solve this, since profit will be maximized by making 20 doodles and 20 paintings = ($10 x 20) + ($20 x 20) = $600
ann sells bracelets for $4 each and necklaces for $8 each. which inequality shows x, the number of bracelets, and y , the number of necklaces Ann must sell to make it at least $100
what is the product of 2/3 multiplied by 3
Answer:
The answer is 2
Step-by-step explanation:
HOpe this helps
Answer:
4/3
Step-by-step explanation:
The population of Metsville is 1,274 people less than the population of Eden. If the population of Eden is 9,021 people, what is the population of Metsville?
Answer:
7,747
Step-by-step explanation:
9,021-1,274=7,747
Answer:
Step-by-step explanation:
7