Step-by-step explanation:
Given that the function for the temperature of the dishwasher is
f(x) = 360 - 15x
We are told that x represents the number of minutes it takes to cool down.
with a given/known value of x we can predict the temperature of the dishwasher.
Say x=12 minutes, we can tell what the temperature will be after 12 minutes
by plugin in the value of x=12 in the expressions for the temperature
f(x) = 360 - 15(12)
f(x) = 360 - 180
f(x) = 180
The temperature after 12 minutes will be 180°
-4x<20
X<-5
Describe the error that she made
What the answer
Answer:
your supposed to flip the sign for the less than or greater than sighs when dividing by a negative.
Step-by-step explanation:
-4x←20
x→-5
What is the slope of a line perpendicular to the line whose equation is
2x+12y=−192. Fully reduce your answer.
The slope of a line would be -6 which is perpendicular to the line whose equation is 2x+12y=−192.
What is the slope of the line?The slope of a line is defined as the angle of the line. It is denoted by m
Slope m = (y₂ - y₁)/(x₂ -x₁ )
We have to determine the slope of a line perpendicular to the line whose equation 2x + 12y = −192.
First, we have to find the slope of the given line
The equation of the line which is given as
2x + 12y = −192
12y = −192 - 2x
Divided by 12 both sides of the above equation to get the slope-intercept form
y = - (1/6)x - 16
Here the slope of the line (m) = -1/6
So the slope of the line perpendicular to the line will be: 1/m = 1/(-1/6) = - 6.
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Would you classify 225 as a perfect square, perfect cube, both, or neither?
Answer:
both
Step-by-step explanation:
Answer: Its Both looked it up
Step-by-step explanation:
Old Man Withers just died. He left his collection of baseball cards to his two sons. Bill got 55% of the collection and his brother Bob received the rest.
How many cards did Bill receive if Bob received
360 cards, then how many cards did Bill as inheritance from his father?
Answer:
Step-by-step explanation:
Bill = 55% of the entire collection
Bob = 45% of the entire collection (Since we know 100 - 55 = 45)
We are also told that Bob received 360 cards.
This means that 45% = 360 cards.
First step is to find how many cards is 1%. To do this, divide 360 by 45.
1% of entire collection = [tex]\frac{360}{45} = 8[/tex] cards
This means that since Bill gets 55% of the entire collection, you multiply 8 by 55.
Bill = 8 x 55 = 440 cards.
Answer:
440
Step-by-step explanation:
Given F(x) = 3x ^ 2 - 4 and F(a) = 8 , find a.
Answer:
188
Step-by-step explanation:
3(8^2)-4
3(64)-4
192-4
188
Write the slope-intercept form of the equation of the line described.
Through (-2, -1) and parallel to y=-2x-1
Answer:
y= -2x -5
Step-by-step explanation:
Slope-intercept form:
y= mx +c, where m is the slope and c is the y-intercept.
Parallel lines have the same slope.
Thus, to find the value of the slope of the line, we have to find the slope of the given line.
y= -2x -1
Since the coefficient of x is -2 and the equation is already in slope-intercept form, the slope of the given line is -2.
Substitute m= -2 into the equation:
y= -2x +c
To find the value of c, substitute a pair of coordinates.
When x= -2, y= -1,
-1= -2(-2) +c
-1= 4 +c
c= -1 -4 (-4 on both sides)
c= -5
Thus, the equation of the line is y= -2x -5.
What is the domain of h^-1(x)
Answer:
(-∞,∞)
Step-by-step explanation:
Question 5
At a soccer tournament, 240 water bottles were sold during the first day. During the second day, the number of water bottles sold was 156. What was the percentage of decrease?
Your answer:
Answer:
i think it 180
Step-by-step explanation:
Express this number in standard form.
3.643 x 10^-1 = ?
Answer:
Solution : Number . In standard form we solve power of 10. Therefore, in standard form is 0.3643
Step-by-step explanation:
hope it helps pls mark as brainliest
Answer:
0.3643
Step-by-step explanation:
The original price of a t.v. was $500. Mrs. Nitz bought the t.v. on sale for $175. What a deal!!! Find the percent discount. BE CAREFUL...the t.v. was expensive but she got a big discount on it.
Does anybody know the answer :D
I would say line graph
because many charts and graphs that use time, like years, use line graphs.
One example of this is the stock market, the stock market uses line graph, and I think the best option here is a line graph.
Answer: Line Graph
A line graph would best represent this data because you recording change over time (results from 1972-2008).
Can someone pls help me on this
Answer:
41.309 kg, 41.32 kg, 41.236 kg
Step-by-step explanation:
I think these are the correct answers.
1
What is m∠GEF?
A 55°
B 110°
C 125°
D 235°
2 Decide if each statement about angle measures in a triangle is true or false.
Choose True or False for each statement.
please help I need an answer now, please
Answer:
I'm pretty sure its 125... I remember getting asked this question and it was right. (i am not completely sure if it's right)
Step-by-step explanation:
Please help me. I will give Brian list.
Answer:
Increasing
Step-by-step explanation:
PLEASE ANSWER QUICK WILL MARK BRAINLIEST
Answer:
1) A = 80
2) A = 30
Step-by-step explanation:
1) x+50 + 80 + x + 70 = 180
2x+120 = 180
2x = 60
x=30
A = (30) + 50
A = 80
2) x+40 + x+90 + (180-110) = 180
x+40 + x+90 + 70 = 180
2x + 200 = 180
2x = -20
x = -10
A = (-10) + 40
A = 30
what is Evaluate 4/5-3/7
Answer:
[tex] \frac{13}{35} [/tex]
Step-by-step explanation:
To add or subtract two or more fractions from each other, the denominators have to be the same. To make the denominators the same, we should find the least common multiple of 5 and 7. The least common multiple of 5 and 7 is 35. 5 should be multiplied with 7 to get 35 and 7 should be multiplied with 5 to get 35 (with both numerators).
[tex] \frac{4}{5 } - \frac{3}{7} [/tex]
[tex] \frac{4 \times 7}{5 \times 7} - \frac{3 \times 5}{7 \times 5} [/tex]
[tex] \frac{28}{35} - \frac{15}{35} [/tex]
[tex] \frac{13 }{35} [/tex]
When subtracting, only subtract the numerators (the denominators are kept as is).
Answer:
the answer is 13/35
Step-by-step explanation:
Help pls am confused
Answer:
Oww no
hope that will help you
Which lines in the graph have a slope greater than 1 but less than 2?
Line 1
Line 2
Line 3
Line 4
Line 5
Answer:
Line 3
Step-by-step explanation:
It bends okkkkkkkkkkkkkkk
Area of the circle. Leave your answer in terms of pi.
Answer:
3.1415926535 8979323846 2643383279 5028841971 6939937510 5820974944 5923078164 0628620899 8628034825 3421170679
Step-by-step explanation:
by google
To boil rice, start by combining water and rice in a pot at a ratio of 3:1. How many cups of water are need for a batch that uses eight cups of rice?
Answer:
Step-by-step explanation:
To boil rice you use the following ratio
Water : Rice
3 : 1
? : 8
Basically what the ratio 3:1 means is that for every 3 cups of water, you need 1 cup if rice.
6 cups of water, you need 2 cups of rice (6:2)
9 cups of water, 3 cups of rice (9:3)
Etc.
All you would have to do is multiply 3 by 8 to find out how much water she needs for 3 cups of rice :)
Answer:
ok the ratio of water to Rice is 3:1 meaning water is 3 rice is one and your child that we have 8 cups of rice so really quite the ratio of rice to the number of cups of rice so it will be if one is equals to 8 what about 3 that is the ratio that represents water so we'll cross multiply so that you have 3 * 8/1 and the answer is 24 so the number of cups of water needed is 24
How do solve 31 = 5 - 2(3x+4) - x. It can be a fraction.
Add the following rational numbers -7.2 + (-4.28)
Answer:
-11.48
Step-by-step explanation:
-7.2 + (-4.28)
-7.2 - 4.28
-11.48
MATH EXPERTS OUT THERE I NEED YOUR ASSITANCE!!!!PLEASE SHOW YOUR WORK ITS DUE RIGHT NOW!!!
1. The county fair charges $1.25 per ticket for the rides. Jermaine bought 25 tickets for the rides and spent a total of $43.75 at the fair. Jermaine spent his money only on ride tickets and fair admission. The price of the fair admission is the same for everyone. Use y to represent the total cost and x to represent the number of ride tickets.
(a) Define your variables.
(b) Write a linear equation that can be used to determine the cost for anyone who only pays for ride tickets and fair admission.
(c) Explain your answer to Part 1b.
.
.A line goes through the points, (8,9) and (-2,4).
What is the slope of the line? Show your work.
Write the equation of the line in point-slope form. Show your work.
Write the equation of the line in slope-intercept form. Show your work.
.
.
Line A is represented by the equation, y=1/4 x+5.
Write in slope-intercept form the equation of a line that is parallel to Line A and passes through the point, (8,-2). Show your work.
Write in slope-intercept form the equation of a line that is perpendicular to Line A and passes through the point, (4," 1"). Show your work.
Answer:
a) x = 25 tickets
y = 43.75 - Total cost
a = admission cost
b/c) 1.25(25)+a=43.75
31.25+a=43.75
43.75-31.25=12.50 cost of admission
12.50+31.25=43.75 total cost at the country fair.
(8,9) and (-2,4)
equation would be y = 1/2x+5
(do the work its a lot there can be videos found online)
nfadkjnbvjkn I'm busy i hope this helped
If my function rule is 2x + 1, what is the OUTPUT if the input is 2?
Work Shown:
x = 2 is the input
y = 2x+1
y = 2(2)+1
y = 4+1
y = 5 is the output
A function is a relationship between inputs where each input is related to exactly one output.
The value of the output of function 2x + 1 when x =2 is 5.
What is a function?A function is a relationship between inputs where each input is related to exactly one output.
Example:
1.
f(x) = 3x + 2
x = 1,
f(1) = 3x1 + 2 = 3 + 2 = 5
Input = 1
Output = 5
2.
g(x) = 4x + 2
For x = 1, g(1) = 4x1 + 2 = 4 + 2 = 6
Input = 1
Output = 6
We have,
Function:
2x + 1
Input = 2
The value of the output of the function 2x + 1 when x =2:
= 2x + 1
= 2x2 + 1
= 4 + 1
= 5
Thus,
The value of the output of function 2x + 1 when x =2 is 5.
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Kevin runs 4 miles in 30 minutes. At the same rate, how many miles would he run in 48 minutes?
In the figure shown, FG is tangent to circle D.
DO
G
What is the relationship between DG and FG?
O A. DG is parallel to FG
O B. DG is perpendicular to FG.
OC DG Intersects FG to form an acute angle.
ODDO intersects FG to form an obtuse angle
Answer:
Option B
Step-by-step explanation:
From the figure attached,
Circle D is drawn with the radius = DG or DE
A tangent FG has been drawn at a point G on the circle from an external point F.
By theorem,
Radius of a circle is always perpendicular to the tangent, drawn to the circle from an external point.
Therefore, DG ⊥ FG.
Option B will be the correct option.
Answer: B
Step-by-step explanation: good luck!:)
Cheryl paid $37.20 for 12 gallons of ice cream for a school picnic. How much would 1 quart of ice cream cost?
$0.68
$0.78
$3.10
$4.10
Answer:
b
Step-by-step explanation:
Answer:0.78
Step-by-step explanation:
hola necesito eso urgente porfavor lo tengo que entregar en 2 horas
La galaxia de Andrómeda tiene un
diámetro de 100 000 años luz y está
situada a unos 2 000 000 de años
luz de la Tierra. Expresa el diámetro
y la distancia en kilómetros.
(Sabiendo que: un año luz equivale
aproximadamente 9,4608 x 1012 km).
Answer:
25.7
Step-by-step explanation:
Find the missing side This is due in a hour
Answer:
The Arch is 630 ft tall
Step-by-step explanation: