Answer: x=5
Step-by-step explanation:
subtract x from both sides
-2x-x=x-15-x
-3x=15
then divide both sides by -3
-3x=-15
-3x -3
x=5
hope this helps! please mark as brainliest! Thanks
Vanessa throws a tennis ball in the air. The function h(t) = -15t2 + 45t + 10 represents the distance in feet, that the ball is from the ground at any time in seconds, t. What is the maximum height of the ball?
Answer:
43.75feet
Step-by-step explanation:
Given the height of the tennis ball expressed as;
h(t) = -15t^2 + 45t + 10
At maximum height, the velocity of the ball is zero
v = dh/dt
dh/dt = -30t + 45
Since dh/dt = 0, hence;
0 = -30t + 45
30t = 45
t = 45/30
t = 3/2
t = 1.5secs
Substitute t = 1.5 into the expression given
h(1.5) = -15(1.5)^2 + 45(1.5) + 10
h(1.5) = -15(2.25)+67.5+10
h(1.5) = -33.75+77.5
h(1.5) = 43.75feet
Hence the maximum height of the ball is 43.75feet
What is the area of these
Answer:
g=130 h=22
Step-by-step explanation:
bxh÷2
hope this helps
6, 18, 54, 162
What is the common ratio
Answer:
3
Step-by-step explanation:
The common ratio is 3 because 6 x 3 = 18 , 18 x 3 = 54 , and 54 x 3 - 162
O A. 120 cm3
B. 120 units3
C. 630 cm2
O D. 120 units
Answer:
the answer is B
hope this helps
Step-by-step explanation:
i did the math
HELP ME ON GEOMETRY!!! PLZ
NO LINKS! > i will report.
Answer
I believe B.)8in3 is the right answer according to the square-cube law.
Step-by-step explanation:
A raft travels downriver at a rate of 6 miles per hour. The total distance d in mile that the raft travels is equal to the rate times the number of hours h. Dependent Variable: Independent variable: Equation:
Answer:
Dependent variable: total distance (d)
Independent variable: number of hours (h)
Equation: d = 6h
Step-by-step explanation:
In this case given, the dependent variable, total distance (d), is dependent on the independent variable, number of hours (h). This is because, a change in the value of h leads to the change in the value of d. In order words, total distance (d) is a function of the number of hours (h).
Therefore:
Dependent variable: total distance (d)
Independent variable: number of hours (h)
Rate: 6 miles/hr
Equation: d = 6h
Gill earned $10 on Thursday,$20 on Friday,and $15 on Saturday selling necklaces.He sold each necklace for the same amount.What is the most he could have charged for each necklace?
Answer:
20 dollars.
Step-by-step explanation:
Look at the largest number.
Answer: pretty sure it is 5
Find the GCF of 5y5 and 50y2.
Answer: [tex]5y^2[/tex]
Step-by-step explanation:
Given
[tex]5y^5\ \text{and}\ 50y^2[/tex]
GCF or HCF of the two is the highest common factor
[tex]\Rightarrow 5y^5=5\times y^2\times y^3\\\Rightarrow 50y^2=5\times y^2\times 10[/tex]
It is clear GCF is [tex]5y^2[/tex]
How do I write the equation of a line that goes through the points (9,-8) and (6,-8)???
Answer: y=-8
Step-by-step explanation: I will assume you want the solution in slope intercept form. First, we must find the slope of this line. Since between the two points the y value doesn't change, this means our line is horizontal. So far, we have y=0x+b, since anything multiplied by 0 is zero, we can get rid of that. This line is a horizontal line, and we have the y value, so out equation is y=-8.
7.
Wendy is paid $12 per hour and plans to work between 30 and 35 hours per week. Identify the independent and dependent quantity in the situation. Find reasonable domain and range values.
A. weekly pay; hours worked; $360 to $420; 30 to 35 hours
B. hours worked; weekly pay; 30 to 35 hours; $360 to $420
C. weekly pay; hours worked; 30 to 35 hours; $360 to $420
D. hours worked; weekly pay; 30 to 35 hours; $0 to $420
Answer: I'm gonna go with B. hours worked; weekly pay; 30 to 35 hours; $360 to $420, because I had something similar to this
Wendy is paid $9 per hour and plans to work between 20 and 25 hours per week. Identify the independent and dependent quantity in the situation. Find reasonable domain and range values.
weekly pay; hours worked; 20 to 25 hours; $180 to $225
hours worked; weekly pay; 20 to 25 hours; $180 to $225
weekly pay; hours worked; $180 to $225; 20 to 25 hours
hours worked; weekly pay; 20 to 25 hours; $9 to $225
Step-by-step explanation:
The independent quantity is her pay and the dependent quantity is the hours she works in a week.
I believe the range would be 30 to 35 hours and the domain would be $360 to $450.
...................................................................................................................................................
Answer:
Part a) The independent quantity is the variable x (the number of hours) and the dependent quantity is the variable y (total paid)
Part b) Domain
Part c) Range
Step-by-step explanation:
Let
x------> the number of hours
y-----> total paid
The linear equation that represent this situation is
so
Part a)
The independent quantity is the variable x (the number of hours)
The dependent quantity is the variable y (total paid)
Part b) Find the domain
The domain is the interval-------->
All real numbers greater than or equal to hours and less than or equal to hours
Part c) Find the range
For
find the value of y
For
find the value of y
The range is the interval------->
All real numbers greater than or equal to and less than or equal to
...............................................................................................................................................
The dependent quantity would be the $12 per hour, while the independent quantities are 30 hrs/ week to 35 hours/ week.
The $12 per hour would become $360/week to $420/week.
The domain of the problem, with the unit of hrs/week, would be :30,31,32,33,34,35.
The Range of the problem, with the unit of $/week, would be : 360, 372, 384, 396, 408, 420.
...............................................................................................................................................
Describe the transformations that will make f(x)=1/x into g(x)=−1x+5−8?
Answer:
f (x) = 4
f (x) = radical 3x-4
f (x) = 3/5x
Step-by-step explanation:
Hope this helped you.
Have a beautiful day!!
5x-3=121
to
5x=-36
Explain how the first one ended up to be the second one.
Answer:
you may have done this wrong
Step-by-step explanation:
5x-3=121
add 3 on both sides
5x=-36<------what you did was wrong
you should have ended up with...
5x=124
divide by 5 on both sides
x=24.8
Beth is buying 2.6 pounds of coffee beans. If the coffee costs 6.79 per pound, how much will she pay? Round to the nearest cent..
Answer:
$17.65
Step-by-step explanation:
hope this helped!!
Suppose a fair coin is tossed and the spinner below is spun one time. What is the probability of flipping heads and spinning a number greater than 2?
Answer:
3
Step-by-step explanation:
Answer:
3/10
Step-by-step explanation:
Javier and his family drink 3 gallons of milk each week. Javier drinks 5 quarts of milk each week. How many pints of milk does the rest of his family drink during the week?
A.12
B.14
C.7
D.10
Answer:
So basically Javier and his family drink a total of 12 quarts of milk each week because 1 gallon of milk is 4 quarts so Javier drinks 5 quarts 12-5=7
which leaves 7 quarts for his family. 2 pints are equal to a quart therefore 14 pints are left for his family
thank you lol i’m not smart sorry
Answer: 65
Step-by-step explanation: Sum of angles in triangles is always 180, we know one angle is 25 and another is 90, so 25 + 90 = 115, then 180 - 115 = 65.
PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!
Answer:
Step-by-step explanation:
Calculate the area of the base (which is a circle) by using the equation πr² where r is the radius of the circle. Then, multiply the area of the base by the height of the cylinder to find the volume.
Answer:
[tex]\frac{32}{3} \pi \\v= 33.5[/tex]
Step-by-step explanation:
[tex]v=\frac{4}{3} \pi r^{3}[/tex]
[tex]v= \frac{4}{3} \pi 2^{3} \\\\v=\frac{4}{3} \pi 8\\v=\frac{32}{3} \pi \\v= 33.5[/tex]
Relationship a is defined by the equation y=9x some values of relationship b are (0,0)(3,34.5)(5,57.5)(8,92) both relationships have a direct proportion between x and y. The rate of change of relationship b is how many units greater then the rate of change of relationship a
Answer:
The rate of change of relationship 'b' is 2.5 times greater than the rate of change of relationship 'a'
Step-by-step explanation:
The given parameters are;
The function representing relationship 'a' is y = 9·x
Some values of relationship 'b' are;
(0, 0), (3, 34.5), (5, 57.5), and (8, 92)
For direct proportionality of relationship 'b' we have;
y = k₂·x
∴ k₂ = y/x
∴ k₂ = 34.5/3 = 23/2
57.5/5 = 23/2
92/8 = 23/2
k₂ = 23/2
Therefore, the direct proportionality relationship of relationship 'a' is y = 9·x
∴ k₁ = 9
Therefore, the rate of change of relationship 'b' is k₂ - k₁ = (23/2) - 9 = 2.5 times greater than the rate of change of relationship 'a'.
HELP PLZZZZ!!!!!!!!!!!!!!
Answer:
B
Step-by-step explanation:
Please resolve this is for today
Answer:
A Square plus B square equals
Step-by-step explanation:
T
Solve for x:
4.5x = 56.25
1. x = 60.75
2. x = 12.5
3. x = 253.125
Answer:
2. x = 12.5
Step-by-step explanation:
x=56.25÷4.5=12.5
Please answer this quickly it’s for a test!
Answer: I think its D, not positive though.
Step-by-step explanation:
The model is shaded to represent the remaining one-half of a cake. Three friends will
each receive an equal amount of the remaining cake until it is all gone.
Cake
Which equation can be used to determine the fraction of the whole cake each friend
will receive?
Answer:
jsjshshshhsgdhshdhdhddhshggzggzgzhshsggggghzhgzgzgdgxgshdhdhgd
Step-by-step explanation:
h
Answer:
h
Step-by-step explanation:
between 6 a.m. and noon the temperature Rose 12 degrees Farenheit to 4 degrees Fahrenheit
Answer:
that's not possible it can rise unless it is at negative 12
3(4x+6)=x-4
Pls look at the picture for the rest of the question thanks!
Answer:
(x = −2) sentence below
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
3(4x+6)=x−4
(3)(4x)+(3)(6)=x+−4(Distribute)
12x+18=x+−4
12x+18=x−4
Step 2: Subtract x from both sides.
12x+18−x=x−4−x
11x+18=−4
Step 3: Subtract 18 from both sides.
11x+18−18=−4−18
11x=−22
Step 4: Divide both sides by 11.
11x
11
=
−22
11
x = −2
I used distributive property because it allows me to simply the equation when dealing with the unknown value of x.
Mr. Lenny has graded 25% of his 200 students papers. How many papers did he finish
grading?
A
50
B.
60
с
25
D
300
Answer:
50 papers
Step-by-step explanation:
50% of the 200 papers would be 100 papers graded because half of 200 is 100.
25% would be 1/4 of the 200 papers.
So you have to divide.
200 divided by 4 is 50.
Therefore 50 papers have been graded so far.
In slope-intercept form, what is the equation of the line containing the points (−1, 2) and (2, −1)?
Answer:
y=-x+1
Step-by-step explanation:
m=(y2-y1)/(x2-x1)
m=(-1-2)/(2-(-1))
m=-3/(2+1)
m=-3/3
m=-1
y-y1=m(x-x1)
y-2=-1(x-(-1))
y-2=-(x+1)
y=-x-1+2
y=-x+1
Factorise this pleasee
x2 + 4x -45
Answer:
(x - 5)(x + 9)
Step-by-step explanation:
find the value of given expression
[tex] \sqrt{900} [/tex]
Answer:
30 Ans...............
Order the sides or angles of each triangle from least to greatest.
Answer:
SU , UT , ST
Step-by-step explanation: