Answer:
Step-by-step explanation:
So that " ⋅ " sign is just the multiplication, and always remember:
WHENEVER YOU MULTIPLY TWO NEGATIVE NUMBERS THE PRODUCT IS ALWAYS POSITIVE
So you just multiply 7 and 4 which is 28 and leave it be.
If you need more help, comment.
I'm sorry for my wrong explanation.
Write a numerical expression for the verbal expression.
The difference of twenty-two and six divided by the sum of five and three
Find the slope of the line that passes through the given points.
(10,-15) (13,-17)
What is the velocity of an object with a kinetic energy of 100 , 000 J 100,000 J100, comma, 000, start text, space, J, end text and a mass of 800 kg 800 kg800, start text, space, k, g, end text? Round your answer, if necessary, to the nearest hundredth.
Given:
Kinetic energy (KE)= 100,000 J
Mass (m)= 800 kg
To find:
The velocity of the object to the nearest hundredth.
Solution:
We know that,
[tex]KE=\dfrac{1}{2}mv^2[/tex]
where, KE is kinetic energy (in J), m is mass (in kg) and v is velocity (in m/s).
Put KE=100000 and m=800 in the above formula.
[tex]100000=\dfrac{1}{2}(800)v^2[/tex]
[tex]100000=400v^2[/tex]
Divide both sides by 400.
[tex]\dfrac{100000}{400}=v^2[/tex]
[tex]250=v^2[/tex]
Taking square root on both sides.
[tex]\sqrt{250}=v[/tex]
[tex]v=15.8113883[/tex]
[tex]v\approx 15.81[/tex]
Therefore, the velocity of the object is 15.81 m/s.
1
- 7x - 5x +8=-16
-12x+8+-16
x=2
-12x=-24
12x=24
12 12
Check your Solution
The measure of an angle is 6° less than the measure of its complement.
A:1 hour 37 minutes
B:2 hours 37 minutes
C:2 hours 23 minutes
D:1 hour 23 minutes
At a concert 20 percent of the audience member were teenagers. If the number of teenagers at the concert was 360,what was the total number of audience members?
Answer: 1,800
Step-by-step explanation: At a concert, 20% of the audience members were teenagers. If the number of teenagers at the concert was 360, what was the total number of audience members? x = ? If you divide 360 by 20% it will give you 1,800 audience members.
What equivalent to 6/1
please helpppppppppp
Answer:
[tex]kb = {2}^{10} \\ gb = {2}^{30} [/tex]
tb = product of kb and gb
[tex]tb = kb \times gb \\ tb = {2}^{10} \times {2}^{30} \\ = {2}^{40} [/tex]
¿QUÉ ES UNA ECUACIÓN?
Answer:
Una pregunta es un enunciado que normalmente funciona como una solicitud de información, que se espera que se proporcione en forma de respuesta.
Step-by-step explanation:
a school's enrollment decreased from 3000 to 2250 students. what is the percent of decrease
Answer:
25%
Step-by-step explanation:
You can do this on a calculator or just look it up!
Happy To Help!
===============================================
Work Shown:
A = old value = 3000
B = new value = 2250
C = percent change
C = [ (B-A)/A ] * 100%
C = [ (2250-3000)/3000 ] * 100%
C = (-750/3000) * 100%
C = -0.25*100%
C = -25%
Since C is negative, we have a 25% percent decrease.
Another indication we have a percent decrease is that B < A.
I need help please, the question is The temperature at 6am is 12 F. During the next twelve hours, the temperature increases 25 F. During the following 5 hours, the temperature decreases 23 F. what is the temperature at 11 PM?
Answer:
14 degrees
Step-by-step explanation:
12 + 25 - 23 = 14
2.A truck driver maintains a constant speed of 65 miles per hour on a stretch of highway that lasts 130 miles. Graph the remaining distance as a function of the time driven in hours.(1 point)
a.The horizontal axis labeled Hours Driven goes from 0 to 15 in increments of 1 and the vertical axis labeled Miles Remaining goes from 0 to 150 in increments of 10. The line segment starts at left parenthesis 0 comma 130 right parenthesis, passes through left parenthesis 1 comma 65 right parenthesis, and ends at left parenthesis 2 comma 0 right parenthesis.
b.The horizontal axis labeled Hours Driven goes from 0 to 15 in increments of 1 and the vertical axis labeled Miles Remaining goes from 0 to 150 in increments of 10. The line starts at left parenthesis 2 comma 0 right parenthesis, and passes through left parenthesis 3 comma 65 right parenthesis and left parenthesis 4 comma 130 right parenthesis.
c.The horizontal axis labeled Hours Driven goes from 0 to 15 in increments of 1 and the vertical axis labeled Miles Remaining goes from 0 to 150 in increments of 10. The line starts at left parenthesis 0 comma 0 right parenthesis, and passes through left parenthesis 1 comma 65 right parenthesis and left parenthesis 2 comma 130 right parenthesis.
d.The horizontal axis labeled Hours Driven goes from 0 to 15 in increments of 1 and the vertical axis labeled Miles Remaining goes from 0 to 150 in increments of 10. The line segment starts at left parenthesis 0 comma 130 right parenthesis, passes through left parenthesis 2 comma 65 right parenthesis, and ends at left parenthesis 4 comma 0 right parenthesis.
3.Tayson walked for 8 minutes before running n laps around a track. Tayson takes 1 minute and 45 seconds to run each lap. What is the graph of the function that relates the amount of time, T, in minutes Tayson walked or ran after running n laps?(1 point)
A.A function is graphed on a first quadrant coordinate plane. The horizontal axis labeled Laps goes from 0 to 10 in increments of 1. The vertical axis labeled Time in minutes goes from 0 to 35 in increments of 1. A line starts at (0, 5) and passes through (2, 17) and (5, 35).
B.A function is graphed on a first quadrant coordinate plane. The horizontal axis labeled Laps goes from 0 to 10 in increments of 1. The vertical axis labeled Time in minutes goes from 0 to 35 in increments of 1. A line starts at (0, 8), and passes through (4, 11) and (8, 14).
C.A function is graphed on a first quadrant coordinate plane. The horizontal axis labeled Laps goes from 0 to 10 in increments of 1. The vertical axis labeled Time in minutes goes from 0 to 35 in increments of 1. A line starts at (0, 8), and passes through (4, 15).
D.A function is graphed on a first quadrant coordinate plane. The horizontal axis labeled Laps goes from 0 to 10 in increments of 1. The vertical axis labeled Time in minutes goes from 0 to 35 in increments of 1. A line starts at (0, 1.75), and passes through (1, 9.75). All coordinates are approximate.
4.Function f(x) has a slope of 32 and a y-intercept of 6. Explain how the graph of f(x) could be used to find the x-intercept.(1 point)
A.Find the x-coordinate of the point that crosses the x-axis. The x-intercept is −4.
B.Find the y-coordinate of the point where x=1. The x-intercept is 152.
C.Use the value of riserun for the function, which is 32.
D.Find the y-coordinate of the point that crosses the y-axis. The x-intercept is 6.
Answer:
The correct option is;
c. The horizontal axis labeled Hours Driven goes from 0 to 15 in increments of 1 and the vertical axis labeled Miles Remaining goes from 0 to 150 in increments of 10. The line starts at left parenthesis (0, 0), and passes through (1, 65) and (2, 130)
Step-by-step explanation:
The given parameters are;
The speed of the truck = 65 miles per hour
The length of the highway = 130 miles
Therefore, from the given information, we have;
The time, t, it will take the truck to arrive at the end of the highway is given as follows;
Time = Distance/speed = 130/65 = 2 hours
Therefore, if the truck timing starts from the point (0, 0), we have;
The points on the straight line (constant) speed graph are;
(0, 0), (1, 65), and (2, 130)
Answer:
C
Step-by-step explanation:
man drove his car a distance of 366 miles in 6 hours. If continuing at this rate is possible, he will travel ____ miles in 7 hours.
Numerical Answers Expected!
Answer:
the answer is 427miles in 7 hours
Step-by-step explanation:
Answer:
427 miles in 7 hours.
Step-by-step explanation:
All we need to do is figure out how many miles per hour he's traveling, and then add it to the pre-existing 6 hour number we already have.
So, he drove 366 miles in 6 hours. We need to find out how many miles per hour (MPH) he's doing. To do this all we need to do is divide the amount of miles he's gone (366) by the number of hours it's taken him (6). It looks like this:
366 ÷ 6 = 61.
So he's goes 61 miles every hour. Now all we need to do is add up until we hit 7 hours. We already know he went 366 miles in 6 hours, so we only need to add 61 to 366 once.
366 + 61 = 427.
427 is your answer.
Hope this helps and have a nice day!
please help i’m gonna cry
Answer:
She Flipped the symbol
Step-by-step explanation:
Please don't cry. I will explain it to you. Just please don't cry.
She multiplied correctly. But in her end result, she flipped the symbol.
You only flip symbols when multiplying or dividing by a negative number.
I hope this helps! Please don't cry :)
In 2011 Ralph paid $12.95 for a box of cards and $0.44 each for 16 stamps. What was the total cost, in dollars and cents, of the box of cards and stamps?
Answer:
$19.99
Step-by-step explanation:
0.44 x 16 = 7.04
7.04 + 12.95 = 19.99
What is the value of x?
Enter your answer in the box.
x =
Answer:
x=19
Step-by-step explanation:
3x-3=[6(x-10)]
3x-3=6x-60
-3x -3x
-3=3x-60
+60 +60
57=3x
x=19
3x-3 6(x-10)
3(19) 6(19-10)
57 -3 6(9)
54 54
These angles are vertical angles which means they are equal
A paragraph about functions/relations?
Paragraph:
Functions are a special kind of relation. At first glance, a function looks like a relation. A function is a set of ordered pairs such as { (0, 1), (5, 22), (11, 9)}. Like a relation, a function has a domain and range made up of the x and y values of ordered pairs.
You roll a six-sided dice. What is the probability of rolling a 4?
Answer:
1/6th chance.
P.s.
please give brainliest
the sum of two consecutive integers is 62. what are the two consecutive integers?
Answer: So our two integers are 17 and 45.
Step-by-step explanation:
The two integers are 17 and 45, See how we got it. X+Y=62. Substitute our first expression here for y, we have X+2X+11 =62.
Given that,
the two numbers are consecutive(also odd)
The two numbers are
x and x + 2
Sum of the numbers = 62
x + (x + 2) = 62
x + x + 2 = 62
2x = 62 - 2
2x = 60
x = 60/2
x = 30
Therefore, the two numbers are x = 30 and x + 1 = 32
PLZ HELP ... ... .......
equation that has solutions x = -2 and x = 8
A bushel had a total of 68 apples. 25% of the apples were green and the rest of the apples were red. How many more red apples were there than green? step by step pls
Multistep: At 7 p.M. Last night, the temperature was 10 degrees Fahrenheit. At 7 a.M. The next morning, the temperature was -2 degrees Fahrenheit. a. By how much did it change from 7 p.M. To 7 a.M.? b. The temperature changed by a steady amount overnight. By much did it change each hour?Immersive Reader
Answer:
The temperature changed by [tex]-12^\circ F[/tex] overnight.
The temperature changed by [tex]-1^\circ F[/tex] overnight each hour.
Step-by-step explanation:
Given that:
Temperature at 7 PM last night = [tex]10^\circ F[/tex]
Temperature at 7 AM the next morning = [tex]-2^\circ F[/tex]
a. The change in temperature from 7 PM to 8 AM = Temperature at 7 AM - Temperature at 7 PM
[tex]\Rightarrow -2-10 =\bold{-12^\circ F}[/tex]
Negative sign indicates that the temperature has decreased.
b. Change in temperature each hour:
Divide the Change in temperature with the number of hours.
[tex]\Rightarrow \dfrac{-12}{12} = \bold{-1^\circ F}[/tex]
Negative sign indicates that the temperature has decreased.
in scientific notation.
245,600,000,000
Answer:
2.456 × 10∧11
Step-by-step explanation:
If there are 50 steady beats in 30 seconds, how many steady beats would there be in 2 minutes
LOTS OF POINTS FOR HELLLP
Answer:
y = 3x+9
Step-by-step explanation:
We can use the slope intercept form
y = mx+b
where m is the slope and b is the y intercept
y = 3x +b
Substitute the point into the equation
6 = 3(-1) +b
6 = -3+b
Add 3 to each side
6+3 = -3+3+b
9 = b
y = 3x+9
Answer:
C.
Step-by-step explanation:
The answer is C. when using the formula C=2*pi*r and A=pi*r^2.
Just remember to divide the diameter by two to get the radius. If you were asked to find the radius instead of the diameter, you would simply divide 7 feet by 2 because the radius is one-half the measure of the diameter. The radius of the circle is 3.5 feet. You can also use the circumference and radius equation.
Maya needs to buy 10.4 tons of rocks for her landscaping company. Each ton of rocks costs $32.90. The salesperson offers to sell the rocks to Maya for $330.
Is Maya saving money if she agrees to this deal?
How much should Maya actually be charged for the rocks?
Answer:
10.4 × 32.90 = 342.16
so yeah she should take the deal
What is the product of –3 and 5?
-15
-8
8
15
Answer:
-15
Hope I helped.
Answer:
its A
Step-by-step explanation:
What is the product of –3 and 5? -3x5 5 10 15 so -15 is the answer
What is the value of (-12) + (- 33)? Can someone explain the steps to the answer please?.. ASAP
Answer:
(-12) + (-33) = (-45)