A weather station on the top of a mountain reports that the temperature is currently 0°C and has been falling at a constant rate of 3°C per hour. What was the temperature:
1 hour ago?
3 hours ago?
Half an hour ago?
Answer:
For one hour ago, it would be 3 C, 3 hours ago, it would be 9 C, and half an hour ago, it would be 1.5 C.
Step-by-step explanation: It's quite straightforward. Since the temperature is dropping, and you want to find the temp. of earlier times, just add 3C to every hour (1.5 for a half) it was ago, to what the temperature currently is now. (0 C).
Eddie's electric charges 90$ per hour plus a 50$ traveling fee. Which equation is true?
1. y=50-90x
2. y=90x+50
3. y= -50x+90
4. y= -90 - 50x
Answer:
B. y=90x+50
Step-by-step explanation:
He has a dept of $90 dollars per hour plus a $50 dept on traveling.
x= money dept per hour
y= total amount
Select the locations on the number line to plot the points −17/8 and 13/8.
Answer: With this information the answer would be GO down twice into the negatives and make you plot point, next go down eleven times and make your plot point, and last go down seventeen times and make your plot point.
Step-by-step explanation: What you have to do is make the number line with a zero at in the middle on the left of the zero you go down into the the negative numbers and on the right you go up into the positive numbers
Step-by-step explanation:
-17/8 < 13/8
♡Discussion:≤ Means maximum≥ minimum > means greater than< means lessPlease help me solve all these parts and you get brainlest
Answer:
1. is not. 2. 13
Step-by-step explanation:
Answer:
Is not. 2.13
Step-by-step explanation:
Help plz:
9. Divide the following:
a.
x^4
------
x^3
b.
s^3
------
s^5
c.
z^12
------
z^10
Answer:
[tex]x^4 - x^3 = x^1\\\\s^3 - s^5 = s^-^2\\\\z^1^2 - z^1^0 = z^2[/tex]
Step-by-step explanation:
I am not good at this.
Virtuoso user, let me know if I am wrong plz.
HYGTFRDSXDC FVGBTFRDC
Viva México sin nada más que decir
no te entendí ni ⅕a lo que dijiste pero ya no importa (long live MEXICO)
A Christmas string light measures 12 inches. If the bulbs on the string are spaced 3/2 inches apart from each other, how many bulbs are strung together? *
Your answer
Answer:
8
Step-by-step explanation:
1) 3/2 is the same as 1.5 so divide 12 by 1.5 to get 8
Which equation has the correct sign on the product?
Answer:
A
Step-by-step explanation:
The base of a triangular prism is a right triangle with a base of 20 feet and a height of 120 inches. The height of the prism is 5 feet.
What is the volume of the prism, in cubic feet?
Enter your answer as a number, like this: 42
Do not enter units.
HELPPPP PLEASEEEEE
Answer:
The volume in Cubic feet is 60 cft.
Step-by-step explanation:
we have to divide 20 by 120. 120 ÷ 20 = 60. Even though 5 is divisible by 60, we won't be doing that. 60 cft. is the answer.
Hope this helps!
Answer:
it is 500 cubic feet, when it is a triangle or triangular prism we divide it in half since its half a square, 120 inches=10 feet. 10ftx20x1/2=100. 100x5=500
Today, the price of a new cell phone is $529. In 2000, the price of a similar cell phone was $149. Is this is price increase or decrease?
Answer:
The price of a similar cellphone today has increased
Answer:
increase
Step-by-step explanation:
Because the price went by $380.
Does the following relationship represent a function?
Answer:
yes
Step-by-step explanation:
the output can have more than one input
the input cannot have more than one output
I hope this helps!!
Answer:
No. it does not represent a function.
Step-by-step explanation:
hope this helps.
Two stores opened on the same day. Both stores has 75 customers by the end of the first week. Store A's customers doubled each week for six weeks. Store B's customers increased by 200 each week for six weeks. Which store had more customers at the end of week 5?
A. Store A
B. Store B
C. They had the same amount of customers
D. Not enough information
Answer:
Store A
Step-by-step explanation:
Week 1 - Store A had 75 and Store B had 75
Week 2 - Store A had 150 and Store B had 275
Week 3 - Store A had 300 and Store B had 475
Week 4 - Store A had 600 and Store B had 675
Week 5 - Store A had 1200 and Store B had 875
Write an equation in slope-intercept form for the line with slope -1/4 and -7 y-intercept. NO LINKS.
Answer: [tex]y = -\frac{1}{4}x - 7[/tex]
That equation is in slope intercept form y = mx+b
m = -1/4 is the slope
b = -7 is the y intercept
HELP ASAP PLSPLSPLSPLSPLSPLSPLSPLSPLSPLS
Aeris reads the temperature of a liquid in a lab experiment. The temperature of the liquid is 7.2ºF. After 5 hours, she reads the temperature of the liquid again. The temperature of the liquid is now −1.6°F. Aeris plots the points on a number line to determine the temperature change between these two readings. How much did the temperature decrease? Enter your answer as a decimal in the box.
Answer: 8.8 (-8.8'F)
Step-by-step explanation:
What we know:
Temperature started as 7.2Temperature ended as -1.6We need to find the differenceHow to solve:
By doing simple subtraction, we can solve this.
Process:
Write equation 7.2 - (-1.6) = ?Simplify 7.2 + 1.6 = ?Solve = 8.8Solution: 8.8 (-8.8'F)
*Note: The temperature decreased by 8.8'F, but it increased/changed by -8.8'F. Be careful of wording.
A university currently has 18,000 enrolled students. Due to a discounted tuition, the university expects the number of enrolled students to increase at a rate of 5% per year. If the expected increase occurs, which function represents the number of enrolled students in t years?
Answer:
f=1/50t+18000
Step-by-step explanation:
Answer:
f=1/50t+18000
im sorry im not sure if this is right
Step-by-step explanation:
By coincidence, Norma's Obedience School trained the same number of dogs and cats last week. The school teaches dogs in groups of 6 and cats in groups of 5. What is the smallest number of cats the school could have had?
Answer:
Its 4
Step-by-step explanation:
What is 43434 x 21387128930523122222 and the first person to answer will get a brainliest from me!!!!!!!!!!!!!1
Answer:
9.2892856e+23
Step-by-step explanation:
include an explanation pls
Answer:
A
Step-by-step explanation:
60/15=4 0.4
90/15=6 0.46
90/15=6 0.466
The 6 is repeating, so it can only be D and A.
The number at the top is divided by the number at the bottom in a fraction.
We are dividing 7 by 15, so it can not be D and must be A.
Write the coordinates of two points that are the given distance from these points and horizontal/vertical:
6. 5 units from (–1, –2) ( , –2) and ( , –2) _______________________
7. 8 units from ( 2 , 4 ) ( 2 , ) and ( 2 , ) _______________________
8. 3 units from (–7, –5) (–7, ) and (–7, ) _______________________
9. 6 units from ( 4, –1) ( 4 , ) and ( 4 , ) _______________________
10. 10 units from (–1, 9) ( , 9 ) and ( , 9 ) ______________________
11. 7 units from (–3 , 2) ( , 2 ) and ( , 2 ) ____________________________
Answer:
7 units from (-3,2)(,2)and(,2)
Step-by-step explanation:
The purpose of this task is for students to solve a mathematical problem using points in the coordinate plane. This task also helps lay the foundation for understanding operations on signed numbers without formally introducing those notions, which are not expected until 7th grade (see 7.NS.1). Students will not have the full machinery needed to find distances between two arbitrary points in the plane until they have studied the Pythagorean Theorem in 8th grade. However, it is straightforward for them to find horizontal and vertical distances, which mirrors how one might represent sums and differences of signed numbers on a number line. The solution for the first part shows how these questions can be represented using absolute values (as described in standard 6.NS.C.8), although students are unlikely to make this connection without being asked to do so. If students are asked to solve this problem on their own first, it could be used to launch a discussion of the relationship between the the absolute value of coordinates of points in the plane and their distance to the respective axes.
Please note that students will have to assume that the points have integer coordinates, which is reasonable but worth mentioning.
Solution
The distance between points B and C is 5 units, as indicated below.
We can determine the distance between points B and C by counting the units between the two points since they are on the same vertical line which happens to be a grid line.
We can also note that the coordinates for B are (3,2) and so it is |2| units above the x-axis. Similarly, the coordinates for C are (3,−3), so it is |-3| units below the x-axis. Thus, the distance between B and C is
|2|+|−3|=5
units.
The distance between points D and B is 7 units, as indicated below.
The distance between points D and E is 4 units, as indicated below.
Point C is the only one of points A,…E that is both 4 units away from (−1,−3) and 2 units away from (3,−1). There is another point that satisfies these two criteria (which is the other intersection point of the circle of radius 4 and circle of radius 2 shown below), but it does not have integer coordinates and is not one of the points identified in the task
hellp me please, i need to get this done by the end of the day !!
Answer:
They are both the same triangle, with different dilations
Step-by-step explanation:
(I hope this is right, I wasn't quite sure of the context)
Answer:
1.a+b=c 2. c+d=e 3.f+g=h
Step-by-step explanation:
A chemist is using 389 milliliters of a solution of acid and water. If 14.6 of the solution is acid, how many milliliters of acid are there? Round your answer to the nearest tenth.
Answer:
389 - 14.6 = 374.4
Step-by-step explanation:
374.4 milliliters of acid are in there.
Someone help me with this please, I really need help, and it's due tmrw...PLEASE
Answer:
The answer is c.
Step-by-step explanation:
Rate of change means slope, in C, the slope is 6. Whenever you see an equation like that and a number with x after it, that's the slope, or rate of change. On the graph, the rate of change is -3, on answer choice C, the slope is -6.
Question 12 The graph represents the amounts Madison and Morgan earn each hour tutoring. After how many hours will Madison and Morgan earn the same amount? Amount Earned ($) y 80 70 60 50 40 30 20 10 절 0 1 2 3 4 5 6 7 8 Number of Hours Answer Record your answer in the boxes below. Be sure to use correct place value. +/-
Answer:
hmmm
Step-by-step explanation:
lmk if you got the answer
help pls ! will give brainlest lol
Answer:
y=3/4x
Step-by-step explanation:
From the origin (0,0) count the rise to the next point (3) and then the run (4) leaving you with 3/4 as your slope.
What is the volume of this solid?
Most Precise Answer = Round to the nearest hundredth
Approximate Answer = Round to the nearest tenth if necessary
Answer:
4188.79
Step-by-step explanation:
Find the volume with the formula, V = (4/3)πr³.
If Gary bikes at an average speed of 6 miles per hour, how many hours will it take him to bike 84 miles?
A. 19 hours
B. 17 hours
C. 14 hours
D. 12 hours
Step-by-step explanation:
No of hours =84 ÷ 6 = 14 hours
Option C is the correct answer
Consider the points (-5,2) and (3,-9)
What's the horizontal distance between the two points?
Answer:[tex]\sqrt{185}[/tex]
Step-by-step explanation:
[tex]\sqrt{(-5-3)^2+(2+9)^2}[/tex]
Help.......................
Answer:
The 2x4 is an example of a product. The last step Jamal needs to use is the subtraction.
Step-by-step explanation:
PEMDAS RULES:
(First to last)
Parentheses, Exponents, Multiplication, Division, Addition, Subtraction
I shall give the right answer brainliest
Answer:
A. [tex]-\frac{1}{9}[/tex]
Step-by-step explanation:
-([tex]3^-^5[/tex])([tex]3^3[/tex]) = [tex]-\frac{1}{9}[/tex]
please let me know if I am wrong.
hope this helped.
Answer:
A
Step-by-step explanation:
[tex]-\left(3^{-5}\right)\left(3^3\right)[/tex]
[tex]\mathrm{Apply\:exponent\:rule}:\quad \:a^b\cdot \:a^c=a^{b+c}[/tex]
[tex]3^{-5}\cdot \:3^3=3^{-5+3}[/tex]
= [tex]-3^{-5}\cdot \:3^3[/tex]
[tex]\mathrm{Add/Subtract\:the\:numbers:}\:-5+3=-2[/tex]
[tex]=-3^{-2}[/tex]
= [tex]\mathrm{Apply\:exponent\:rule}:\quad \:a^{-b}=\frac{1}{a^b}[/tex]
[tex]3^{-2}=\frac{1}{3^2}[/tex]
= [tex]=-\frac{1}{3^2}[/tex]
[tex]3^2=9[/tex]
= [tex]=-\frac{1}{9}[/tex]
can you please Solve eight and three fifths minus two and four ninths?
Answer:
2 43/45
Step-by-step explanation:
Answer:
6 7/45
or
6 and 7/45
Step-by-step explanation:
8 3/5 - 2 4/9
= 43/5 - 2 4/9
= 43/5 - 22/9
= 277/45
= 6 7/45
