The initial room temperature was -20 degrees Celsius.
Explanation:The temperature in the room decreases by 0.5 degrees Celsius per minute.
After Quinn slept for 60 minutes, the room's temperature became 10 degrees Celsius.
We can calculate the initial room temperature by subtracting the total decrease in temperature from the final temperature:
Initial temperature = Final temperature + (Rate of temperature decrease * Time)
Initial temperature = 10 + (-0.5 * 60) = 10 + (-30) = 10 - 30 = -20 degrees Celsius
Therefore, the initial room temperature was -20 degrees Celsius.
Final answer:
The final temperature of the room after 60 minutes of the air conditioner being on is -20°C.
Explanation:
In this question, we are given the initial temperature of the room and the rate at which the temperature decreases. We are also given the time period for which the air conditioner was on. We need to determine the temperature after the given time period.
Given: Initial temperature = 10°C, Rate of temperature decrease = 0.5°C/min, Time period = 60 min.
To calculate the final temperature, we need to multiply the rate of temperature decrease by the time period and subtract this value from the initial temperature.
Final temperature = Initial temperature - (Rate of temperature decrease * Time period) = 10°C - (0.5°C/min * 60 min) = 10°C - 30°C = -20°C.
what is the slope of a line that passes through the points (3, -1) and (-2, -5) ?
Answer:
4/5
Step-by-step explanation:
To find the slope of a line that passes through 2 points we use the equation
m = (y2-y1)/(x2-x1)
= (-5--1)/(-2-3)
= (-5+1)/(-2-3)
= -4/-5
=4/5
Answer:
4/5
Step-by-step explanation:
john is 5 3/4 ft tall how tall is john in inches
John's height from feet to inches is a total of 69 inches.
The question asks how tall John is in inches if he is 5 3/4 feet tall.
To convert feet to inches, you use the fact that one foot equals 12 inches. You need to multiply the whole number of feet by 12 and then add the inches that result from the fractional part.
Step 1: Convert the whole number of feet to inches. John is 5 feet tall, and each foot is 12 inches:
5 feet x 12 inches/foot
= 60 inches
Step 2: Convert 3/4 of a foot to inches. Since there are 12 inches in one foot, you calculate 3/4 of 12:
3/4 x 12 inches
= 9 inches
Step 3: Add the number of inches from the whole feet and the fractional foot together to get John's height in inches:
60 inches + 9 inches = 69 inches
John is 69 inches tall.
WILL MARK BRAINLIEST!!! : ) Need an answer now! Thanks
The hourly wage increase each employee receives each year depends on their number of years of service. Every three years of service means an increase of $0.50 per hour. So, employees that have been with the company for less than three years can expect to receive an increase of $0.50 per hour. Employees that have been with the company for at least three years, but less than six years can expect an increase of $1.00. Employees that have been with the company for at six years, but less than nine years, receive an increase of $1.50 per hour. And, employees of at least nine years, but less than twelve years receive an increase of $2.00. Write a function to represent this scenario.
Which graph represents this wage increase for x < 12?
Answer:
I think it's the third!
Step-by-step explanation:
Answer:
The answer is the 3rd one : )
prove the angle sum property of a triangle
Answer:
ANGLE SUM PROPERTY OF A TRIANGLEStep-by-step explanation:
PROPERTY 1 : Angle sum property of triangle states that the sum of interior angles of a triangle is 180°.
PROOF : Draw a triangle , then mark each angle as A , B , and C . then take a compass and mark three ark in three sides of a triangle and cut the angles of B and C , then join the two angle B and C with angle A . Then you will find there a COMPLETE ANGLE .
The sum of the measures of angles of triangle is equal 180°.
Look at the picture.
We have the congruent corresponding angles and the vertical angles.
13,530 grams (g) is equal to how many kilograms (kg)?
In the metric system, 1 kilogram is equivalent to 1000 grams. By dividing 13,530 grams by 1000, we get 13.53, meaning 13,530 grams is equivalent to 13.53 kilograms.
Explanation:The question is asking about converting grams (g) into kilograms (kg). In the metric system, 1 kilogram is equal to 1000 grams. So, to convert 13,530 grams into kilograms, you need to divide 13,530 by 1,000.
Therefore:
13,530 grams (g) = 13.53 kilograms (kg)
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i need help thx so much
Answer:
$40.51
Step-by-step explanation:
sales tax = original price * tax rate
tax rate = 10 percent = .10
sales tax = 405.10 * .1
= 40.51
General conic equation
There are 3 types of conics: parabola, ellipse, and hyperbola.
Equation of a parabola: y = a(x - h)² + k or x = a(y - k)² + h
Equation of an ellipse: [tex]\frac{(x-h)^{2}}{a} +\frac{(y-k)^{2}}{b} =1[/tex]
Equation of a hyperbola: [tex]\frac{(x-h)^{2}}{a} -\frac{(y-k)^{2}}{b} =1[/tex]
The general equation for all of them is:
Ax² + Bxy + Cy² + Dx + Ey + F = 0 ; A, B, C, D, E, F ∈ Integers
Emma went to a salon to get her hair cut. The price of the haircut is $65. She wants to leave a 20% tip. What is the total amount she should pay?
Answer:
She should leave a total of $78.
Step-by-step explanation:
To find this, we first need to find the tip amount. We can do this by multiplying the total by the tip percentage.
$65 * 20% = $13
Now that we have that, we need to add it to the cost.
$65 + $13 = $78
The table shows the number of miles driven over time. Express the relationship between distance and time in simplified form as a unit rate.
Time (hours)
4
6
8
10
Distance (miles)
188
282
376
470
Answer:
Relationship between distance and time in simplified form as a unit rate is; [tex]\frac{47}{1}[/tex]
Step-by-step explanation:
Unit rate defined as the rates are expressed as a quantity of 1, such as 5 feet per second or 3 miles per hour, they are called unit rates.
Unit rate = [tex]\frac{distance}{time}[/tex]
From the given table:
Take any
time = 4 hours and distance= 188 miles
then, by definition of unit rate;
Unit rate = [tex]\frac{188}{4} =\frac{47}{1}[/tex]
Since, this is the constant rate.
Therefore, the relationship between distance and time in simplified form as a unit rate is; [tex]\frac{47}{1}[/tex]
Which are the x-intercepts of the graphed function?
Answer: the correct option is
(B) (-3, 0) and (1, 0).
Step-by-step explanation: We are given to find the x-intercepts of the graphed function.
We know that
x-intercepts of a function are the points on the X-axis through which the graph of the function is crossing.
From the graph, we see that
the curve is crossing the X-axis at the points (-3, 0) and (1, 0).
Therefore, the x-intercepts of the given function are (-3, 0) and (1, 0).
Option (B) is CORRECT.
Solve: tan(x) – cos2(x) = sin2(x)
Answer:
pi/4 + kpi (choice #1)
Step-by-step explanation:
Answer:[tex]x=\frac{\pi}{4}[/tex]
Step-by-step explanation:
`Writing tan and cos in form of sin
[tex]\frac{sinx}{cosx}-\left ( 1-2sin^2x\right )=2sinxcosx[/tex]
[tex]\frac{sinx}{cosx}-1+2sin^2x=2sinxcosx[/tex]
[tex]\frac{sinx-cosx}{cosx}=2sinx\left ( cosx-sinx\right )[/tex]
[tex]2sinx\left ( cosx-sinx\right )-\frac{sinx-cosx}{cosx}=0[/tex]
[tex]\left ( cosx-sinx\right )\left [ 2sinx+\frac{1}{cosx}\right ]=0[/tex]
[tex]\left ( cosx-sinx\right )\left [ \frac{2sinxcosx+1}{cosx}\right ]=0[/tex]
so cosx-sinx=0 or 2sinxcosx+1=0 and cosx is not equals to zero
cosx-sinx=0
tanx=1,[tex]x=\frac{\pi}{4}[/tex]
similarly
[tex]x=n\pi +\frac{\pi}{4}[/tex]
For 2sinxcosx+1=0
sin2x=-1
[tex]2x=\frac{3\pi}{2}[/tex]
but this value is not satisfied by equation thus
[tex]x=n\pi +\frac{\pi}{4}[/tex]
two angles in a triangle mesaure 65 degrees and 75 degrees what is the measure of the third angle of the triangle
Answer:
40°
Step-by-step explanation:
The interior sum of a triangle is 180°. Since we have two known angles we will subtract those values from 180 to obtain our third angle and so:
180°-65°-75°=40°
Answer:
Not sure but i think its 45°.
Step-by-step explanation:
George’s parents are saving for his college fund. They put $5,000 into an interest bearing account with a compound interest rate of 5.5%. George’s parents want to determine what the balance of his college fund account will be after 15 years. Using the formula a=p(1+r)^t , which is the correct substitution for the formula? a=5000(1+0.055)^15 a=5000(1+0.055)15 a=5000(1+0.055)^5.5 a=(5000+0.055)+1^15
Answer:
a=5000(1+0.055)^15
Step-by-step explanation:
p= amount in present
r=interest
t= period of time
Answer: [tex]a=5000(1+0.055)^{15}[/tex]
Step-by-step explanation:
Given : George’s parents put $5,000 into an interest bearing account with a compound interest rate of 5.5%.
i.e. Principal amount : [tex]p=\$5,000[/tex]
Rate of interest : r=5.5%=0.055
George’s parents want to determine what the balance of his college fund account will be after 15 years. i.e. t= 15
Substitute all the values of p , r at t in the given formula [tex]a=p(1+r)^t[/tex], we get
[tex]a=5000(1+0.055)^{15}[/tex]
Hence, the correct substitution for the formula = [tex]a=5000(1+0.055)^{15}[/tex]
A figure is dilated by a factor of 3. Which statement about measurements of image is ture
what is the value of x
possible answers are:
A. x=3
B. x=18
C. x=30
D. x=9
Answer:
A
Step-by-step explanation:
MB is a perpendicular bisector to JK, thus triangle is equilateral/ isosceles, hence
MJ = MK
9x - 18 = 3x ( subtract 3x from both sides
6x - 18 = 0 ( add 18 to both sides )
6x = 18 ( divide both sides by 6 )
x = 3 → A
Frosty has traveled 2/3 of the way down Santa Claus lane.The lane is 336 feet long.How many feet has Frosty traveled?
We can multiply 336 by 2/3 to find out.
2/3(336)
To make this easier, we can change 336 to 336/1, which does not change it's value.
Multiply 336 by 2.
336 * 2 = 672
Multiply 1 by 3.
1 * 3 = 3
Our new value is 672/3
Evaluate, divide both sides of the fraction by 3.
672/3 = 224.
3/3 = 1
224/1
224/1 = 224
Frosty has traveled 224 feet.Solve . 2d^2+5d-12=0
Answer:
Exact Form d=3/2 or -4
Decimal Form d=1.5 Mixed (Number)(Form):1 1/2 or -4
Hoped I helped <3
Step-by-step explanation:
The value of a machine depreciates each year by 3 %. What will be the value of the machine bought for Rs 1,00,000 after two years.
Answer:
1,000,000 / 1.03 = 970,873.79 After 1st Year
970,873.79 / 1.03 = 942,595.91 After 2nd Year
Step-by-step explanation:
Answer:
Two thirds rounded would be 66.67%. I’m uncertain whether you were asking about a straight line depreciation or some sort of degressive depreciation.
Basically, in a straight-line depreciation, you would calculate each depreciation as a fraction of your asset’s original value. A machine worth $1000 in year 0 would depreciate annually with a constant amount of $100.
Your machine would be worth less than 66.67% of its original value after at least 4 years (4 x 10%). More precisely, 3 years and (33.3% x 365 days) 122 days.
Applying a degressive depreciation method, you would calculate the depreciation in each year as a fraction of your asset’s residual value. This implies your depreciations would decrease each year (hence “degressive”). As soon as your depreciations fall below the amount you would depreciate in a straight line depreciation, you switch to the latter. The reason for this is that it does not really make sense for a company to depreciate it’s assets with a lesser amount, given the tax benefits of depreciations and the time value of money.
Assuming the duration of the asset’s useful life is 10 years, you would switch to the straight-line depreciations after the first year. This scenario would be equal to the straight-line depreciation: 3 years and 122 days.
In case the duration of the asset’s useful life is shorter or longer than 10 years, the amount of time required for the asset to have less than two-thirds of its initial value depends on the duration of is life.
so basically the answer is
1,000,000 / 1.03 = 970,873.79 After 1st Year
970,873.79 / 1.03 = 942,595.91 After 2nd Year
PLEASE HELP!!!!!!!!!30 POINTS!!!!!!!!!!!!!!!!!!!!PRETTY SIMPLE QUESTION!!!!!!!
Which correctly describes how the graph of the inequality −4y − x ≥ 7 is shaded?
Above the solid line
Below the solid line
Above the dashed line
Below the dashed line
Answer:
Below the solid line.
Step-by-step explanation:
When you solve for y, you will have a less than or equal to sign, so the shading is below the line.
Answer:
Below the solid line
Step-by-step explanation:
−4y − x ≥ 7
We need to solve for y
Add x to each side
−4y − x +x≥ 7+x
-4y ≥ 7+x
Divide each side by -4. Remember to flip the inequality
−4y/-4 ≤ (7+x)/-4
y ≤ -1/4 x - 7/4
Y is less than or equal to the value so the line is solid (equals sign)
and below ( less than)
what is 5/6÷2 can you please help
me
Question
what is 5/6÷2?
Answer:
0.41 or 5/12 (same value)Step-by-step explanation:
5/6 : 2 =
0.83 : 2 =
0.41
Or
5/6 : 2 =
5/6 * 1/2 =
5/12
Caleb is 4 times Jessica's age Jessica is twice Noah's age Noah is one year older than Mary Mary is 3 yrs old how old is Caleb
7d to the 2nd power plus 10
Hey there!
"[tex]7d[/tex] to the [tex]2^n^d[/tex] power" would look like this → [tex]7d^2[/tex][tex]Plus[/tex] → [tex]+[/tex][tex]10[/tex] →[tex]10[/tex]If you're trying to [tex]translate[/tex] this particular equation, you could say...
[tex]\boxed{7d^2+10}[/tex]Good luck on your assignment and enjoy your day!
~[tex]LoveYourselfFirst:)[/tex]
A line has a slope of -1/2 and a y-intercept of –2.
Hi there! :)
Answer:
y=-1/2x-2
Step-by-step explanation:
Lesson: Slope and slope-intercept form.Slope-intercept form: y=mx+b
m: represents the slope.
b: represents the y-intercept.
Final answer is y=-1/2x-2
Hope this helps!
Have a nice day! :)
:D
-Charlie
The equation of the line for the given case is obtained as y = -1/2x - 2.
How to write the equation of a straight line in slope-intercept form?A straight line can be written in the slope-intercept form as, y = mx + c.
In order to obtain the slope, the ratio of the difference of the coordinates are taken and c is the y-intercept which can be found by substituting x = 0 in the equation.
The slope and y-intercept are given as -1/2 and -2 respectively.
The general form of the slope-intercept equation is y = mx + c.
Substitute m = -1/2 and c = -2 in the above equation to get,
y = -1/2x + (-2)
⇒ y = -1/2x - 2
Hence, the equation of line is given as y = -1/2x - 2.
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[tex]100 \div 100 = 1000[/tex]
right or wrong
Answer:
Wrong
Step-by-step explanation:
100 divided by 100 would simply be equal to one.
If you had 100 things and split it into 100 groups, you'd have 100 groups of just one single thing.
Answer:
false
Step-by-step explanation:
100÷ 100 = 1000
100/100 = 1
You are dividing something by itself.
Something divided by itself is 1
En una carrera benéfica reciben premios los primeros clasificados,de forma inversamente proporcional a la posición de la llegada la meta. En total se reparten 9460€ ¿Qué cantidad corresponderá a cada uno?
Answer:
que ??????????????????????
Step-by-step explanation:
i need help with these problems please show your work
9.)
The image of point (-6, 2) after a 90° counterclockwise rotation is (-2, -6). This is because a 90° counterclockwise rotation is the same as a 270° clockwise rotation, which is (x, y) → (-y, x).
10.)
The image of point (-9, 3) after reflective it over the line y = x is (3, -9). This is because a reflection over the line y = x is (x, y) → (y, x).
11.)
The blank is "rigid" because rigid transformations preserve length.
In a survey, a group of students were asked to name their favorite day of the week. There were 8 students who chose “other”. How many students participated?
Answer:
Step-by-step explanation:I would say 56 or 63. My reason is because when it says pick their favorite day of the week. It is 7 days a week so that gives me right there that I have to multiply. Then there is an option of "other" so I would probably multiply it by 8 to get the number of people who participated. Hope this helps☺
Please give Brainliest!
Which graph represents the solutions to the inequality 2x-6<4?
Answer:
D
Step-by-step explanation:
solving the inequality
Inequalities of the type | x | < a always have a solution of the form
- a < x < a
For | 2x - 6 | < 4 then solution is
- 4 < 2x - 6 < 4 ( add 6 to all 3 intervals )
2 < 2x < 10 ( divide all 3 intervals by 2 )
1 < x < 5 → graph D
The open circles at the ends of the blue line indicate up to but not including these points.
[tex]|2x-6| < 4\iff2x-6<4\ \wedge\ 2x-6>-4\qquad\text{add 6 to both sides}\\\\2x<10\ \wedge\ 2x>2\qquad\text{divide both sides by 2}\\\\\boxed{x<5\ \wedge\ x>1}\to1< x<5[/tex]
≤, ≥ - full circle
<, > - open circle
Answer: 4th graph.airline ticket prices for a concert increase from 800 to 1000 what is the percent of the increase
Answer:
25% increase
Step-by-step explanation:
Answer:The answer is 300 percent.
Step-by-step explanation:
If you add 300 to the answer it equals 1000 so the answer is 300
Given that the volume of a rectangular prism is given by the formula V = lwh, what is the value of V if l = 7 cm, w = 5 cm, and h = 4 cm?
Answer:
140cm3
Step-by-step explanation:
v=lwh=7*5*4=140cm3
Answer:
140cm3
Step-by-step explanation:
v=lwh=7·5·4=140cm^3