Answer:C
Step-by-step explanation:
After a robot vacuum is fully charged, it can run for 15 minutes. It can vacuum 1/2 square foot every second. Can a fully charged robot clean a room that is 400 square feet without recharging?
Answer:
The robot can clean the room without recharging.
Step-by-step explanation:
Given:
After a robot vacuum is fully charged, it can run for [tex]15[/tex] minutes.
The robot cleans [tex]\frac{1}{2}[/tex] square foot every second.
To find: If the charged robot can clean a room that is [tex]400[/tex] square feet without recharging.
Solution:
Area cleaned by the robot in [tex]1[/tex] second [tex]=\frac{1}{2}[/tex] square foot.
We know that, [tex]1[/tex] minute [tex]=60[/tex] seconds.
So, [tex]15[/tex] minutes [tex]=15\times 60=900[/tex] seconds.
Now, area cleaned by the robot in [tex]900[/tex] seconds [tex]=\frac{1}{2} \times 900=450[/tex] square feet.
The area to be cleaned is [tex]400[/tex] square feet.
Hence, the robot can clean the room without recharging.
Which of the following is a transformation of the graph y = (x - 5)^2?
A.Shifts down 5.
B.Shifts right 5.
C.Shifts left 5.
D.Shifts up 5.
Answer:
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could you help me quick!?
Answer:
1: 5 2: -70.98 3: C 4:A. 5:A
Step-by-step explanation:
2(x/8 + 3) = 7 + 1/4x what is x
Answer:
x1 = 2 -[tex]\sqrt{5}[/tex]
x2= 2 +[tex]\sqrt{5}[/tex]
Step-by-step explanation:
x/4 + 6 = 7 + 1/4x
(x^2 - 1)/4x = 1
x^2 - 1 = 4x
x^2 - 4x -1 = 0
x= (4+[tex]\sqrt{20}[/tex])/2 = 2 -[tex]\sqrt{5}[/tex]
x= 2 +[tex]\sqrt{5}[/tex]
Fran prepared 200.2 grams of dough. How much dough did she use measured in ounces?
Answer:
7 ounces
Step-by-step explanation:
Anya is spinning a big arcade wheel can make 1 revolution in 0.6 minute how many revolution can the wheel make in the 10.8 minute
Answer:
18
Step-by-step explanation:
10.8/0.6=18
(1 + 5) + 9 = 15 another way to right this
6+9=15
(1+5)+9=15
6+9=15
Hope it helped
Answer: 1x6+9=15 or 15x1 or 6+9=15 or 5x3=15
Step-by-step explanation:
Adding cheese to a McDonald's Quarter Pounder increases the fat content from 21 g to 30 g. What percent does the fat content increase
Answer: 42.9%
Step-by-step explanation:
The percentage increase of the fat content will be calculated as:
= Fat increase / Previous fat content × 100
= (30 - 21) / 21 × 100.
= 9/21 × 100
= 42.9%
show all work please
[tex] \frac{7r}{2} \div \frac{ {14r}^{2} }{3} [/tex]
Answer:
3 / 4r
Step-by-step explanation:
Simplify : 7r/ 2 ÷ 14r²/3
7r/ 2 ÷ 14r²/3
Changing the ÷ sign to multiplication :
Multiply 7r/2 by the reciprocal of the denominator :
7r/ 2 * 3/14r²
((7 * r) / 2) * (3) / 14 * r * r
= 3 / 4r
For clarity, kindly check attached picture for detailed simplification.
n^2+7 at n= -3 help!
Answer:
16
Step-by-step explanation:
To solve plugin -3 for n
[tex]-3^2+7[/tex]
Then, solve using PEMDAS. First, do exponents
[tex]-3^2+7=9+7[/tex]
Next, add
[tex]9+7=16[/tex]
So, 16 is the final answer.
1,329.8 to 1 decimal place
Answer:Here you can enter any number with as many or as few decimal places as you want, and we will round it to the nearest one decimal place. Please enter your
Step-by-step explanation:
What is the sign of 45 + (-38)
Answer:
A) POSITIVE
Step-by-step explanation:
45 +(-38)
Will become
45-38
= 7
6: REDUCE to simplest term. 4/1 + 15/2
Answer:
[tex]\frac{4}{15}+\:\frac{1}{2}[/tex] in the simplest term is:
[tex]\frac{4}{15}+\frac{1}{2}=\frac{23}{30}[/tex]
Step-by-step explanation:
Given the expression
[tex]\frac{4}{15}+\:\frac{1}{2}[/tex]
Thus, solving to reduce to the simplest term
[tex]\frac{4}{15}+\frac{1}{2}[/tex]
LCM of 15, 2: 30
Adjusting fraction based on the LCM
so the expression becomes
[tex]\frac{4}{15}+\:\frac{1}{2}=\frac{8}{30}+\frac{15}{30}[/tex]
Apply the fraction rule: [tex]\frac{a}{c}+\frac{b}{c}=\frac{a+b}{c}[/tex]
[tex]=\frac{8+15}{30}[/tex]
Add the numbers: 8+15 = 23
[tex]=\frac{23}{30}[/tex]
Therefore, [tex]\frac{4}{15}+\:\frac{1}{2}[/tex] in the simplest term is:
[tex]\frac{4}{15}+\frac{1}{2}=\frac{23}{30}[/tex]
An airplane on autopilot took 6 hours to travel 4,200 kilometers. What is the unit rate for kilometers per hour?
Answer:
59
Step-by-step explanation:
Its easy
please help me
20. Multiply: 2x (3x^2 - 5x - 3)
21. Divide: 14m^1 - 28m^8 ÷ 7m/ 7m
What is the slope of line a?
THIS IS A TEST AND MY GRADE IS ALR BAD ENOUGH PLS ANSWER CORRECTLY
Answer:
you forgot to put the attachment so we can see the line....
Wayne has a recipe that says to heat the oven to 160°C. Wayne evaluates the expression 1.8C + 32 when C= 160 to convert the temperature to degrees Fahrenheit To which temperature should Wayne heat the oven?
Answer: The answer is 320 degrees F.! :)
Step-by-step explanation:
Sasha grew 36 plants with 9 seed packets. How many total seed packets does Sasha
need if she wants to have 76 plants in her backyard in all? Solve using unit rates.
seed packets
Answer:
10 more seed packets.
Step-by-step explanation:
36/9=4 so there are 4 seeds in each packet. If she already has 36 plants, she only need 40 more to get the 76 she wants. 40/4=10 so she needs 10 more seed packets.
Factor Completely 8y^2+14y+3
Answer:
(4y+1)(2y+3)
Explanation:
Factor 8y^2 + 14y + 3
8y^2 + 14y + 3
= (4y + 1)(2y + 3)
FRAME AN EQUATION AND SOLVE
the length of a rectangle is 3cm more than its breath and its perimeter is 34cm.Find the length and breath of the rectangle
A snail crawls 24 inches in 8 minutes.
What is the unit rate of the snail's movement?
The unit rate of the snail's movement is 3 inches per minute.
Unit rate:Important information:
A snail crawls 24 inches in 8 minutes.We need to find the unit rate.
Divide the distance by time to find the unit rate.
[tex]\text{Rate}=\dfrac{24}{8}[/tex]
[tex]\text{Rate}=3[/tex]
Therefore, the unit rate of the snail's movement is 3 inches per minute.
Find out more about 'Unit rate' here:
https://brainly.com/question/113969
Can somebody help me??
Plz help me get the right answer
Answer:
6x^2 + 10x -1 and -5x^2 -2x + 1
6x^2 -5x^2 = x^2
+10x -2x = +8x
-1 +1 = 0
answer:
x^2 + 8x
what is 25% of 50⇒ФФФФФФФ⇒⇒⇒
Help asap??!!?!?!.....................................!
Which answer describes the type of sequence?
3, 4, 5, 6, ...
geometric
neither arithmetic nor geometric
arithmetic
Answer:
arithmetic
Step-by-step explanation:
an arithmetic sequence is when you add or minus the same number
Answer:
the answer to this question is that the sequence is arithmetic sequence
Step-by-step explanation:
because the difference between the consecutive terms is consecutive terms is constant that sequence is arithmetic sequence. And is the sequence the numbers are increasing with +1 increment.
Which value is equivalent to the expression 32 × 33?
Answer:
1,056
Step-by-step explanation:
Answer 32x33=33x32 easy
Ok but listen to streets by doja cat and vibeU-U
Answer:
aNd?
tHeREs mORe..
Step-by-step explanation:
Jeremy lost his dog, and wants to make some signs to put up in the neighborhood. The cost to make 8 paper signs and 2 laminated signs is $12.00. The cost to make 10 paper signs and 10 laminated signs is $30.00. What is the cost of 1 laminated sign?
Answer:
cost to make paper signs = $1
cost to make laminated signs = $2
Step-by-step explanation:
Let
x = cost to make paper signs
y = cost to make laminated signs
8x + 2y = 12 (1)
10x + 10y = 30 (2)
Multiply (1) by 5
40x + 10y = 60 (3)
10x + 10y = 30 (2)
Subtract (2) from (3) to solve for x
40x - 10x = 60 - 30
30x = 30
x = 30/30
x = $1
Substitute x = 1 into (1)
8x + 2y = 12
8(1) + 2y = 12
8 + 2y = 12
2y = 12 - 8
2y = 4
y = 4/2
y = $2
cost to make paper signs = $1
cost to make laminated signs = $2
5 less than a number x is 3 times the sum of a number x and 2? (i need a word problem not the answer)
Answer:
Yesterday I squeezed 2 kilos of apples in a barrel.
Today I have picked 5 extra kilos of apples and save them in a basket.
By the end of the day, I want to squeeze some of them and add to the barrel.
Apple juice from the barrel is valued 3 times the same amount of raw apples.
I want to find how many apples I can squeeze today (x) such that the value of the remaining raw apples is equivalent to the total value of produced apple juice.
Step-by-step explanation:
The equation is 5-x = 3 * (x + 2).
If x is the amount of apple to squeeze (in kilos) then 5-x is the remaining raw apples and x+2 is the total quantity of juice.
Since that juice is valued 3 times the raw apples we obtain the equivalence defined in the equation above.