Answer:
The answer is D
Step-by-step explanation:
Give the other person brainlest
Answer:
d
Step-by-step explanation:
i took the quiz
Please help brainliest if correct
Answer: H
Step-by-step explanation:
7% of 21 is 1.47
Answer:
H. 1.47$ tax
Step-by-step explanation:
price of pants is 21 plus 7 percent tax
21/100=0.21
0.21 is 1 percent multiply by 7
1.47 dollars tax
Show all work to factor x4 – 17x2 + 16 completely.
Answer:
(x - 4)(x + 4)(x - 1)(x + 1)
Step-by-step explanation:
Given
[tex]x^{4}[/tex] - 17x² + 16
Use the substitution u = x², then
u² - 17u + 16
Consider the factors of the constant term (+ 16) which sum to give the coefficient of the u- term (- 17)
The factors are - 16 and - 1, then
u² - 17u + 16
= (u - 16)(u - 1) ← replace u by x²
= (x² - 16)(x² - 1) ← both factors are difference of squares
= (x - 4)(x + 4)(x - 1)(x + 1)
Answer: -18
Step-by-step explanation: x4-17x2+16= -18
i am not completely sure but here. i hope this helps god bless
Find the gradient of the line with equation Y=3-x
Step-by-step explanation:
Gradient = Coefficient of x = -1.
?? Need help asp what the answer
Answer:
https://brainly.com/question/11858927
Step-by-step explanation:
Use that Link ;)
Heeellllpppppp
A team of divers assembles at an elevation of -10ft relative to the surface of the water. Then the team dives at a rate of -50ft/min. Write a function rule to represent this situation.
Answer:
y=-50x+-10
Step-by-step explanation:
I'm assuming you need this answer in the y=mx+b format.
If ∠1≅∠2, then ___...
a) ∠5≅∠6, angle 5 is congruent to angle 6
b) ∠3≅∠4, angle 3 is congruent to angle 4
c) XK≅YK
d )GK≅HK
e)All of the above are true
Answer: All of thé above
Step-by-step explanation:
is 7:11 eqaul to 21: 33
Answer:
yes
Step-by-step explanation:
What is the area of a circle if its radius is 5? Step-by-step explanation too.
Answer:
Step-by-step explanation:
Area = 3.14r^2
Area = 3.14(5)^2
Area = 3.14(25)
Area = 78.5
question is in the picture
Answer:
The second and fourth options
Step-by-step explanation:
A function is where one the inputs have only one output. In this case all we have to do is look at the x value (x,y) and see when it goes 1,2,3,4 and that means there are no repeating x and in that case each input has only one output. If you look at the other ones they have a repeating x and that means the input has two outputs and therefore it isn't a function.
pls help (-12) ⋅ c = 12
c = ?
Answer:
c= -1
Step-by-step explanation:
A negative number multiplied by another negative number equals a positive number, so c must be negative. 12 times 1 equals 12, so c must be -1.
If a sprinkler waters 1 over 14 of a lawn in 1 over 2 hour, how much time will it take to water the entire lawn?
1 over 7 hour
4 over 7 hour
4 hours
7 hours
Answer:
7 hours
Step-by-step explanation:
2 divided by 14
i hope this helped
Answer:
7 hours
Step-by-step explanation:
6. Complete the pattern: 4, 8, 12, 16,
Answer:20,24,28,32
Step-by-step explanation:
Answer:
20, 24, 28, 32
Step-by-step explanation:
The sequence is counting by 4. Wasn't sure how many numbers you were looking for, but if you need more than what was given in the answer then keep counting up by 4.
Solve the system of equations.
y= 8x-7. y=6x+5. 
X=?
Y=?
Answer:
(6,41)
x=6
y=41
Step-by-step explanation:
I did it algebraically to solve for x and y, and I also graphed both of them and found the point where they intersect. It’s in the image below.
Hope this helps! :)
FIRST ANSWER GETS BRAINLIEST HURRY UP YALL
Answer........................
7
5
3
1
-1
it took Corinne 3 hours to do 12 pages of homework.How many pages of homework did she do per hour?
Answer:
4 ㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤ
Step-by-step explanation:
12÷3=4
Plz help!
What is the unit cost for 3 lbs. of apples for $7.40? Round to the nearest cent.
Answer:
answer is 2.47
1) The astronaut's sense of imbalance in a space flight is due to the rotation of a device in which he or she feels a fictitious gravity that mimics gravity. The the device rotates according to the mathematical equation: n =g^0.5/2πr^0.5 Where n is the rotational speed and is measured in rotations per second (s). (r) is the radius of the circulator and is measured in meters (m). (g) is a simulation of gravity. Calculate the rotation speed of a device, that has a radius of 1.7 meters and rotates to simulate the gravitational force which equals to: g = 9.8 m/s^2 with steps please
Answer:
n = 0.38 rotation per second
Step-by-step explanation:
The device rotates according to the mathematical equation :
[tex]n=\dfrac{g^{0.5}}{2\pi r^{0.5}}[/tex] ...(1)
Where n is the rotational speed and is measured in rotations per second (s).
r is radius of the circulator and is measured in meters (m).
We need to find the rotational speed when radius is 1.7 m. Put r = 1.7 m in equation (1).
[tex]n=\dfrac{(9.8)^{0.5}}{2\pi \times (1.7)^{0.5}}\\\\=0.38\ \text{rotations per second}[/tex]
Hence, the rotational speed is 0.38 rotation per second.
Find the length of the rectangle if the perimeter is 244 yards the length is 18 less than three times the width?
Answer:
The Length of rectangle is 87 yards.
Step-by-step explanation:
Let width = w
Length = 3w-18
Perimeter of rectangle = 244 yards
We need to find length of rectangle.
First we need to find value of w
The formula used will be: [tex]Perimeter=2(length+width)[/tex]
Putting values and finding w
[tex]Perimeter=2(length+width)\\244=2(3w-18+w)\\244=2(4w-18)\\244=8w-36\\244+36=8w\\8w=280\\w=\frac{280}{8}\\w=35[/tex]
So, w= 35
The width of rectangle w = 35 yards
The length of rectangle l = 3w-18 = 3(35)-18 = 105-18 = 87 yards.
So, the Length of rectangle is 87 yards.
Determine the solution for the equation, 5w - 9= 44.
A) w=10.6
B) W=7
C) w=12.2
D) w=5.8
Answer:
A) 10.6
Step-by-step explanation:
5w - 9 = 44
Add 9 to both sides.
5w = 53
Divide by 5.
w = 10.6
For the function f(x)=3x-4 find f(2)
Hi there!
[tex]\large\boxed{f(2) = 2}[/tex]
Evaluate f(x) at x = 2 by substituting 2 for x:
f(x) = 3x - 4
f(2) = 3(2) - 4
f(2) = 6 - 4
f(2) = 2
Find the midpoint of the line segment with end coordinates of: ( − 1 , 7 ) and ( 3 , − 2 ) Give coordinates as decimals where appropriate.
I need help by score is going down
Answer:
JUST DO IT!
Step-by-step explanation:
Motivation
URGENT! TIMED QUESTION, WILL GIVE BRAINLIEST!
The height of a punted football is modeled by the following quadratic function:
h(t) - -5t2 . 40
where the height is measured in meters after t seconds.
+
a. How many seconds will it take the ball to hit the ground?
c. What is the maximum height of the ball?
Answer:
Step-by-step explanation:
Part a
When the ball hits the ground it has covered the height of zero meters so we replace h(t) with zero
[tex]h(t)=-5t^2+40t\\0=-5t^2+40t\\40t-5t^2=0\\5t(8-t)=0\\5t=0 \ \ \ , \ \ \ 8-t=0\\t=0 \ \ \ , \ \ \ t=8\\[/tex]
So it will take 8 seconds for the ball to hit the ground we another value
t = 0 seconds is when the ball was thrown and after 8 seconds the balls hits the ground
Part c
The ball reaches its maximum height when the velocity is zero.
So as this functions represents the displacement of the ball h(t) we differentiate it to get the velocity equation, so we differentiate h(t) with respect to t.
[tex]v=-10t+40[/tex]
so now we replace the velocity which is v with a zero because the ball reaches its maximum height when the velocity is zero.
[tex]0=-10t+40\\10t=40\\t=40/10\\t=4[/tex]
so now we insert the value of t = 4 into the equation of h(t) to get the height.
[tex]h(t)=-5t^2+40t\\h(4)=-5(4)^2+40(4)\\h(4)=-80+160\\h(4)=80\\[/tex]
so the maximum height of the ball is 80 meters.
Part d
The y-intercept of the graph is zero, and it represents that there is no initial height covered by the ball or the ball is actually thrown from already a height of x meters, as we can see from the equation the y-intercept is zero which means the height covered by the ball is 0 meters when time is zero.
So the point is actually at the Origin (0 , 0).
Part e
We can see that the origin (0 ,0) and (8,0) are the x-intercepts of the graph as solved from part A
We can see that the stationary point or the maximum point is at (4,80) which means the maximum height of the ball is 80 meters when the time is 4 seconds as solved in part C
Graph attached.
Is the relation a function?
Answer: no its not a function
Step-by-step explanation: i searched it up and all of them said no, hopr thid helps :)
help me and get brainiest, like, and 5 starts!
(4x5) x3 = 4x (5x3) What property does this show?
Answer:
distributive
Step-by-step explanation:
Answer:
Step-by-step explanation:
4x5x7x8x2÷8=?
plzzz help answer tyhese
The slope is m=2 in the first picture. Can be done by rise/run.
The second graph has an undefined slope. Using rise/run would get the run value = 0 and that'd make the slope undefined because the denominator cannot be 0.
may someone help me with these 2 again
Answer:
1. 180
2. x = 31
Step-by-step explanation:
1. the sum of the interior angles of every triangle is always 180
2. using what we know from problem 1, we can create an equation:
x + 10 + 2x - 5 + 2x + 20 = 180
add like terms: 5x + 25 = 180
subtract 25 from both sides: 5x = 155
divide both sides by 5: x = 31
help me find the scale factor please!!
Answer:1.5 i think
Step-by-step explanation:
Answer:
the scale factor is 2/3
Step-by-step explanation:
to find the scale factor plug in values to [tex]\frac{new}{old}[/tex]
the new figure is the one in which the scale factor is applied to, and the old is the original figure
so for new take any side from the dilated figure, I will pick HI, the size is 4
for old use what is congruent to HI, so OL, which is 6
plug this into your fraction and you get 4/6
this simplifies to 2/3
At the end of Tabitha's shopping experience, her total cost was $120.70. If she bought the number of 32-ounce cartons of orange juice she needed from part b, what percent of the bill was spent on orange juice? Round your answer to the nearest percent.
Incomplete question. However, let's work it out using an assumed set of data.
Assuming the list and value of items totaling $120.70 is:
10 liters of liquid soap > $601 carton of strawberry juice > $1732-ounce of orange juice > $43.7Answer:
approximately 36%
Step-by-step explanation:
To find the percent of the bill spent on orange juice, we need to find the ratio of its cost to the total cost of Tabitha's shopping experience. We can use the basic formula:
[tex]\frac{item cost}{total cost} * 100[/tex]
[tex]\frac{43.7}{120.7} * 100=[/tex] 36%
In other words, the $43.7 she spent on orange juice made up 36% of the bill.