Answer:
2.575844
Step-by-step explanation:
This is a simple change of temp problem, from 539K to -62C but to start you have to change the C to K, which is simply adding 273 to the -62 so 211K.
Now you take P1/T1 = P2/T2 so,
6.58 = x
539 = 211
now cross multiply and divide, 211 x 6.58 then divide by 539.
this will give you your answer
***BTW DONT CLICK THE LINK ON THE ANSWER BELOW OR ABOVE THAT LEADS TO SOME MALWARE***
5.6^2 + 3.8^5 x 8.1^9 + 2.5^7
Help PLeAse
Answer:
1. Y=2
2.A=1.3
5.p=28/3
Step-by-step explanation: make me brainliest
If Mike walked 10 miles in two hours how many miles did he walk in one hour?
Answer:
5 miles
Step-by-step explanation:
10 miles in 2 hours
so the half in 1 hour; 5 miles
Can y’all plz help I will mark u
Answer:
4/8
Step-by-step explanation:
7/8 - 3/8 - 4/8
4/8 + 3/8 = 7/8
n = 4/8
hope this helps
Gabriel bought a dog crate shaped like a rectangular prism with the dimensions shown in the model 36x24x30
Answer:
25920
Step-by-step explanation:
you do lxwxh
devide (a2+ 7a+ 12)÷ (a+3)
Answer:
(a - 3) • (a - 4)
Step-by-step explanation:
The first term is, a2 its coefficient is 1 .
The middle term is, -7a its coefficient is -7 .
The last term, "the constant", is +12
Multiply the coefficient of the first term by the constant 1 • 12 = 12
Find two factors of 12 whose sum equals the coefficient of the middle term, which is -7 .
-12 + -1 = -13
-6 + -2 = -8
-4 + -3 = -7 That's it
Rewrite the polynomial splitting the middle term using the two factors, -4 and -3
a2 - 4a - 3a - 12
Add up the first 2 terms, pulling out like factors :
a • (a-4)
Add up the last 2 terms, pulling out common factors :
3 • (a-4)
Add up the four terms
(a-3) • (a-4)
Really hope this helps :)
Please please help help please please ASAP
Answer:
false
Step-by-step explanation:
The horizontal axis is the x axis.
I don't really know what your school wants in the blank but here's what I think it is:
The horizontal axis on the coordinate grid is the x axis.
Hope this helps! let me know if its right!
there are 32 student in a class 7 sun I'f the ratio of boys and girls is 5:3 find the number of boys and girla
Answer:
there are 20 boys and 12 girls
El precio de un auto era de &725000. Me han rebajado un 15% por pagarlo al contado. ¿Cuánto debemos abonar con la rebaja?
Respuesta:
616,250
Explicación paso a paso:
Dado que:
Precio inicial = 725.000
Porcentaje de descuento por pagar en efectivo = 15% = 0,15
El precio con descuento será:
Importe inicial - descuento
Descuento = 0,15 * 725000 = 108,750
Precio con descuento = (725000 - 108750) = 616,250
What is the solution to this system of linear equations
X+y=4
X-y=6
(4,6)
(6,4)
(5,-1)
(-1,5)
Find the constant of proportionality.
Use the constant of proportionality to write a unit rate for the data in the table.
Write an equation to represent the relationship between time, t, and distance, d. i will give brainliest if u help
Answer:
see explanation
Step-by-step explanation:
(a)
constant of proportion = [tex]\frac{d}{t}[/tex] ( d is distance, t is time )
Use any ordered pair from the table
Using d = 225 and t = 5 , then
constant = [tex]\frac{225}{5}[/tex] = 45
(b)
Unit rate is then 45 miles per hour
(c)
The equation relating the quantities is
d = 45t
Answer:
(a)
constant of proportion = ( d is distance, t is time )
Use any ordered pair from the table
Using d = 225 and t = 5 , then
constant = = 45
(b)
Unit rate is then 45 miles per hour
(c)
The equation relating the quantities is
d = 45t
Can someone plz help me with this one problem plz!!!
HELP PLZ! BRAINLIST WILL BE PICKED!
Answer:
-0.9
Step-by-step explanation:
hope this helps lovely! lmk if you need an explanation!
Debra and Alexandria can finish a plowing job in two hours if they work together. Debra can do the job in 7 hours by herself. How long would it take Alexandria to finish the same job alone?
Answer:
2 hours 48 minutes
Step-by-step explanation:
Debra=1 plowing job / 7 hours
Debra+Alexandra=1 plowing job / 2 hours
1/2-1/7
=7/14-2/14
=5/14
=1/14/5 (Alexandra can do 1 unit of plowing job per 14/5 hours)
14/5 hour=2 hours 48 minutes (hope hits helps)
Alexandria to finish the same job alone in, 2 hours 48 minutes
What is mean by Subtraction?Subtraction in mathematics means that is taking something away from a group or number of objects. When you subtract, what is left in the group becomes less.
Given that;
Debra and Alexandria can finish a plowing job in two hours if they work together.
And, Debra can do the job in 7 hours by herself.
Hence, We get;
For Debra = 1 plowing job / 7 hours
Debra + Alexandra = 1 plowing job / 2 hours
Hence, Time to take Alexandria to finish the same job alone is,
= 1/2 - 1/7
= 7/14 - 2/14
= 5/14
= 1/14/5 (Alexandra can do 1 unit of plowing job per 14/5 hours)
= 2 hours 48 minutes
Thus, Alexandria to finish the same job alone in, 2 hours 48 minutes
Learn more about the subtraction visit:
https://brainly.com/question/17301989
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Re-Write the quadratic function below in standard Form
y = 5(x+3)(x-4)
HELP ASAP!!? HELP ME PLEASE!! 10 POINTS
Answer:
D) 3x²y
Step-by-step explanation:
Determine whether the conclusion is valid. Explain.
You want to determine the number of students in your school who have visited a science museum. You survey 50 students at random. Twenty have visited a science museum, and thirty have not. So, you conclude that 40% of the students in your school have visited a science museum.
A. yes; The sample is representative of the population, selected at random, and large enough to provide accurate data. So, the sample is unbiased and the conclusion is valid.
B. yes; The sample is representative of a specific group, selected based on age, and small enough to provide accurate data. So, the sample is biased and the conclusion is valid.
C. no; The sample is not representative of the population because students who are older have had more opportunities to visit a science museum. So, the sample is biased and the conclusion is not valid.
D. no; The sample is representative of the population, selected at random, and too large. So, the sample is unbiased and the conclusion is not valid
Answer:
e
Step-by-step explanation:
e
A bike trail is 2 2/5 miles long. Rosie rides her bicycle on the bike trail 4 days a week. How many miles does Rosie ride per week?
Answer: Rosie biked 9.6 miles per week because you do 2 2/5 times 4. 2 2/5 becomes 12/5 and you just times it by 4.
Hope it helps! :D
A fast-food restaurant must apply an 8.5% tax on every sale it makes. How much tax must it charge a customer who purchases a total of $18.50 in food?
Answer: $1.57
Step-by-Step Explanation:
Study.com says: “the formula for calculating the sales tax on a good or service is: selling price x sales tax rate, and when calculating the total cost of a purchase, the formula is: total sale amount = selling price + sales tax,” (study.com, How to Calculate Sales Tax).
So, to find the amount of money they are charging for taxes, we need to use the formula: $18.50 x 8.5%. The selling price is the total sum of the purchase, and the sales tax rate is the percentage number that is apply to every sale as taxes.
Here’s how we solve:
1. To multiply, we first need to change our percentage into a decimal by dividing it by 100. —> 8.5/100 = 0.085
2. Multiply the purchase times the sales tax rate, which is converted into a decimal. —> 18.50 x 0.085 = 1.5725
3. Because money only uses the tenths and the hundredths places, we round up. —> 1.5725 ~ 1.573 ~ 1.57
4. Our answer for the tax amount charged in money is $1.57
Hope this helps!
Two sides of a triangle have lengths 7 and 15. Which inequality represents the possible lengths for the third side , x?
Answer:
8 < x <22
Step-by-step explanation:
In this question we know the two sides of the triangle to be 7 and 15, let's all the other side x
One one side of the inequality we have:
7+15>x
22 > x
On the other side we have
7 + x > 15
X > 15-7
X>8
When we rearrange these inequalities above we have
8<X<22
We saw from the calculations that 8 is less than X and X is less than 22.
What digit would make this sentence true ? I’m marking brainliest for the correct answer only!
Answer:
7, 6, 5 , 4, 3 , 2 , or 1
Step-by-step explanation:
Any of those numbers because they are below 8, and will make the number on the left lesser than the number on the right.
Rico spins the spinner twice and determines the sums of the spins. Fill in the sample space to determine the possible outcomes. What is the probability that Rico will get a sum less than or equal to 8? A 13\frac{1}{3} 3 1 B 23\frac{2}{3} 3 2 C 89\frac{8}{9} 9 8 D 59\frac{5}{9} 9 5
Answer:
2/3
Step-by-step explanation:
Sample space for the sum of 2 spins :
Number on spinner = 2, 5, 4
____ 2 ___ 5 _____4
2___ 4 ___ 7 _____ 6
|
5___ 7 ___ 10 ____ 9
|
4___ 6 ___ 9 ____ 8
Hence,
(4, 7, 6, 7, 10, 9, 6, 9, 8)
Probability of getting a sum less than or equal to 8;
Probability = required outcome / Total possible outcomes
Required outcome =, sum ≤ 8 = 6
Total possible outcomes = 9
P(sum ≤ 8) = 6/9 = 2/3
find the distance between the two points (-1,3) and (4,2) ?
Answer:
sqrt(26) units
Step-by-step explanation:
Use the formula d=sqrt((x2-x1)^2 + (y2-y1)^2). d is the distance, and (x1, y1) and (x2, y2) are the points.
d=sqrt((4-(-1))^2 + (2-3)^2)
=sqrt(5^2 + (-1)^2)
=sqrt(25+1)
=sqrt(26)
Will mark brainliest- please help! find x
Answer:
15
Step-by-step explanation:
Assuming x is the length DB
Δ DSR and Δ DBC are similar, so ratios of corresponding sides are equal, that is
[tex]\frac{DB}{DS}[/tex] = [tex]\frac{DC}{DR}[/tex] , substitute values
[tex]\frac{DB}{10}[/tex] = [tex]\frac{12}{8}[/tex] ( cross- multiply )
8 DB = 120 ( divide both sides by 8 )
DB = 15
That is x = DB = 15
Find the volume of this cube
Answer:
Step-by-step explanation:
This is a cube so the formula for the volume of a square is a³ = Volume
This means:
5³ = V
V = 125in³
Answer:
125 in^3
Step-by-step explanation:
b/c
v=L×w×h
V=5 in×5 in×5 in
v=125 in^3
two hours later than 11:30 is?
56 POINTS
Step 1: Analyze the graph.
Daredevil Danny takes a practice jump as shown on the graph below. Complete the steps to determine the equation for the parabolic trajectory of his practice jump.
⦁ What are the key aspects of any parabola? What do the key aspects tell you about the graph?
(5 points)
⦁ What are the key aspects of Daredevil Danny’s practice jump shown in the graph provided? Describe each value and how it is determined. (10 points)
Step 2: Solve for coefficient a.
⦁ What equation is used to find the vertex form of a parabola with the vertex (h, k)? (5 points)
⦁ Solve for the coefficient a in the vertex form for the parabola in Daredevil Danny’s practice jump using key aspects from step 1. As you solve for the coefficient, explain each step of the process in detail. (15 points)
⦁ What is the vertex form of the parabola from Daredevil Danny’s practice jump? (5 points)
Answer:
Step 1:
What are the key aspects of any parabola? What do the key aspects tell you about the graph?
(5 points)
0=a(4-24)^2+50
-50=a(4-24)^2
4-24
-20^2=400
-50=a(400)
-50=400a
-50/400=-0.125
a = -0.125
B.) What are the key aspects of Daredevil Danny’s practice jump shown in the graph provided? Describe each value and how it is determined. (10 points)
The roots and vertex, you can find the vertex by using vertex form y=a(x-h)^2+k. You find the roots by solving the quadratic equation.
Step 2: Solve for coefficient a.
a.) What equation is used to find the vertex form of a parabola with the vertex (h, k)? (5 points)
f(x) = a(x-h)^2 +k
b.) Solve for the coefficient a in the vertex form for the parabola in Daredevil Danny’s practice jump using key aspects from step 1. As you solve for the coefficient, explain each step of the process in detail. (15 points)
Not sure about this one...?
c) What is the vertex form of the parabola from Daredevil Danny’s practice jump? (5 points)
f(x)=-12/25(x-25)^2+32
The equation of Daredevil Danny's jump in vertex form is y = -0.32(x - 25)^2 + 32
The key aspects of the graphThe graph that completes the question is added as an attachment
These are the vertex and the intercepts of the graph.
The intercepts tell us about when the time of flight and the time of landing, while the vertex tell about the maximum height of Danny's jump.
From the graph, we have:
Vertex = (25,32)x-intercepts = 15 and 35The value of the coefficient aA quadratic function is represented as:
y = a(x - h)^2 + k
Where:
vertex = (h,k)
So, we have:
y = a(x - 25)^2 + 32
Substitute the value of the x-intercept
0 = a(15 - 25)^2 + 32
Subtract 32 from both sides
a(15 - 25)^2 = -32
Solve for a
a = -0.32
Hence, the value of the coefficient a is -0.32
So, the equation in vertex form is y = -0.32(x - 25)^2 + 32
Read more about quadratic functions at:
https://brainly.com/question/1214333
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ILL GIVE BRAINLIEST PLEASE HELP ASAP
Answer:
4.4
Step-by-step explanation:
(-7/10 + 0.15) ÷ (-0.125)
(-70/100 + 15/100) ÷ (-0.125)
-55/100/-0.125
-.55/-0.125
4.4
The table shows all the possible outcomes for spinning the pointer of the spinner with four equal sized sections labeled 1–4 and another spinner with four equal sized sections labeled A-D. What is the probability that the two pointers will land on an odd number and the letter c? Give the probability as a percent.
Answer:
12.5%
Step-by-step explanation:
There are two types of spinners here and the outcome of them is independent. That means
P(odd number,C) = P(odd number) * P(C)
There are two odd numbers out of four numbers in the first spinner. The chance of odd number will be:
P(odd) = 2/(2+2)= 1/2= 50%
There are four letters and the desired outcome is C. The chance for C will be:
P(C)= 1/4= 25%
Then the chance will be:
P(odd number,C) = P(odd number) * P(C)
P(odd number,C) =50% * 25% = 12.5%
please help!!!!!!!!!
3/4 + 5/7
= 21/28 + 20/28
= 41/28
= 1 13/28
Answer:
3/4 + 5/7 = 41/28 = 1 13/28 ≅ 1.4642857
Step-by-step explanation:
3/4 + 5/7 = 41/28 = 1 13/28 ≅ 1.4642857
Spelled result in words is forty-one twenty-eighths (or one and thirteen twenty-eighths).
A cylinder with radius 3 feet and height 5 feet is there. What is the volume of the cylinder? Round answer to the nearest hundredth.
Answer:
volume of cylinder
= πr²h
= π×3²×5
= π×9×5
=45π
= 141.37 cubic feet