Answer:
C
Step-by-step explanation:
Do something global climate protest encourage youth activism
Solve for j in the literal equation h − 7j= k.
Answer:
j = k - h/-7
Step-by-step explanation:
you make j all by itself
hii friends help me to do my homework
the zeroes of 3x² - 2x + 1/3 are real and equal justify
Step-by-step explanation:
Proof using Discrimant:
[tex]3 { x}^{2} - 2x + \frac{1}{3} = 0[/tex]
The discrimant is
[tex] \sqrt{ {b}^{2} - 4ac} [/tex]
B is -2, A is 3 and C is 1/3 so we get
[tex] \sqrt{ {2}^{2} - 4( 3)( \frac{1}{3}) } [/tex]
[tex] \sqrt{4 - 4} [/tex]
[tex] \sqrt{0 } = 0[/tex]
Since the discrimant equal zero, there is one real distinct zero.
This zero will also have a multiplicity of 2, so the zero is technically equal to each other.
To get better at solving, let solve for zero.
[tex]3 {x}^{2} - 2x + \frac{1}{3} = 0[/tex]
[tex]3( {x}^{2} - \frac{2}{3} x + \frac{1}{9} )[/tex]
[tex]3( x - \frac{1}{3} )(x - \frac{1}{3} )[/tex]
[tex]3(x - \frac{1}{3} ) {}^{2} = 0[/tex]
[tex]x = \frac{1}{3} [/tex]
That zero is 1/3,1/3
Find the quotient 70 divided by 17
Answer:
4.1
Step-by-step explanation:
Answer:
4.117.....
Step-by-step explanation:
it is corecct answer but it has remainder.
Select the correct verbal description for the expression below. A. the sum of x and a factor not depending on x B. the product of x and a factor depending on x C. the sum of x and a factor depending on x D. the product of x and a factor not depending on x
Answer:
D. the product of x and a factor not depending on x
Step-by-step explanation:
The equation for the given expression is:
[tex]x (2y+7z)^{2}[/tex]
According to the expression, there are two factors:
the first factor is x, and
the second factor is [tex](2y+7z)^{2}[/tex]
Since, the second factor do not contain x, therefore it is independent of x.
Hence, the expression for the given equation will be the product of x and a factor not depending on x.
Evaluate 2a-3b
a= 5/2 and b = -2
PLEASE ANSWER ASAP , thanks.
To order the right amount of flooring, you need to know the floor area of the living room shown below. What is that area, in square feet?
A floor plan. The living room is 18 feet wide and 10 feet long.
A. 28
B. 53
C. 56
D. 100
E. 180
Fill in the blank with the correct angle to make the statement true. The m∠2 is 28° because it's ____________ to the given angle and the sum of ___________ angles is 180°. corresponding supplementary consecutive interior vertical alternate interior alternate exterior Item at position 3
Which statement is true?
A. All squares are similar.
B. All hexagons are similar,
C. All scalene triangles are similar.
D. All similar figures are the same shape and size.
how to tell the difference between linear and non linear graphs
I need help on this question
Answer:
Step-by-step explanation:
Ava spends about 45 minutes studying each day. She also practices the piano for an average of 20 minutes per day, and she practices soccer 1.5 hours three times a week. If Ava decides to reduce the time she does each activity by 16, find the total number of hours she spends studying and practicing in a year with a reasonable level of accuracy.
Answer:
398.88hoursStep-by-step explanation:
Note: If Ava decides to reduce the time she does each activity by 16minute I believe it should be
1. Ava spends 45min per day studying
reduce this amount be 16min we have=45-16=29min
in a year she will spend 365*29= 10585min
2. She also practices the piano for an average of 20 minutes per day
reduce this amount be 16min we have=20-16=4min
in a year she will spend 365*14= 5110min
3. She practices soccer 1.5 hours three times a week.
in minutes 1.5hours is 90min three times a week
in a day 90*3/7= 270/7=38.57
reduce this amount be 16min we have=38.57-16=22.57min
in a year she will spend 365*22.57= 8238.05min
in total for the year she spends studying and practicing
=10585+ 5110+8238.05
=23933.05min to hours =23933.05/60
=398.88hours
Answer:1. Ava spends 45min per day studying
reduce this amount be 16min we have=45-16=29min
in a year she will spend 365*29= 10585min
2. She also practices the piano for an average of 20 minutes per day
reduce this amount be 16min we have=20-16=4min
in a year she will spend 365*14= 5110min
3. She practices soccer 1.5 hours three times a week.
in minutes 1.5hours is 90min three times a week
in a day 90*3/7= 270/7=38.57
reduce this amount be 16min we have=38.57-16=22.57min
in a year she will spend 365*22.57= 8238.05min
in total for the year she spends studying and practicing
=10585+ 5110+8238.05
=23933.05min to hours =23933.05/60
=398.88hours
Step-by-step explanation:
Find the unit rate if, 350 miles needs 14 gallons of gas.
Answer:
25
Step-by-step explanation:
Step 1: 350:14
Step 2: 175:7
Step 3: 7/7= 1
Step 4: 175/7=25
350:14=25:1
The car will run 25 miles for each gallon of gas
Answer:
1 gallon = 25 miles
Step-by-step explanation:
350 mi 14 gallons =
350 = x Underline = fraction bar btw
14 1
use cross mulitplication
350 = 14x
25 = x
So one gallon goes 25 miles
Hope this helps!
Pls Remember to mark brainliest
Solve the equation: 4x - 9x + 11 = -24. When you guys solve this, be sure to show your work.
Answer:
4x - 9x + 11 = -24
-5x + 11 = - 24
-5x = -24 - 11
-5x = -35
-5x/-5 = -35/-5
x = 7
Answer:
The answer is 7
Step-by-step explanation:
Firstly, you have to subtract 11 from -24, which is -35. Then, add the values with x. Which is -5. -35 divided by -5 equals 7. You can check the answer by doing (4*7)-(9*7)+11=-24
please answer I need help!!
Answer:
Step-by-step explanation:
answer: 0.73 because 7 hundreths times 10 = 7 tenths
An investment of $500 earns interest at an annual interest rate of 13%. The equation for this investment is B = 500(1.13)t, where B represents the balance and t is the number of years. Write an equivalent equation that displays the effective monthly interest rate. A) B = 500(1.10)12t B) B = 500(1.12)12t C) B = 500(1.010)12t D) B = 500(1.012)12t
Answer: C) [tex]B= 500(1.101)^{12t}[/tex]
Step-by-step explanation:
Given : The equation for this investment is B = 500(1.13)t, where B represents the balance and t is the number of years.
For monthly interest , Rate = [tex]\dfrac{r}{12}[/tex]
Time = 12 t [ 1 year = 12 months ]
As r = 0.13 , so rate = [tex]\dfrac{0.13}{12}\approx0.010[/tex]
Now, the equation will be :
[tex]B=500 (1+0.101)^{12t}[/tex]
[tex]\Rightarrow\ B= 500(1.101)^{12t}[/tex]
Correct option : C) [tex]B= 500(1.101)^{12t}[/tex]
plz plz plz plz plz plz plz help me
Step-by-step explanation:
Each person's donation ratio is:
Donation 1 is 4/15 of 75
Donation 2 is 4/15 of 75
Donation 3 is 7/15 of 75
4/15(75) = 5 * 4 = 20
7/15(75) = 5 * 7 = 35
Each person's donation amount is:
$20
$20
$35
Check out work:
20 + 20 + 35 = 75!
Please Help ASAP! What is the measure of Angle WZY
Answer: 138
Step-by-step explanation:
if the cost of making 1 copy is $0.055, how much will 10 copies cost?
Answer:
0.55
Step-by-step explanation:
Answer:
Itz $ 0.55 because 10 × $0.055
Help please :). I need helppppppo
Answer:
386% is the 1 3/4 and the other is 239% I think?
Step-by-step explanation:
help please , i just don’t understand pre cal
Answer:
In mathematics education, precalculus is a course, or a set of courses, that includes algebra and trigonometry at a level which is designed to prepare students for the study of calculus. Schools often distinguish between algebra and trigonometry as two separate parts of the coursework.Step-by-step explanation:
hope this help
9514 1404 393
Answer:
follow directions. h represents a horizontal shift, + shifts to the right. k represents a vertical shift, + shifts up.
Step-by-step explanation:
Modern math instruction often tends toward giving you a task that is intended to help you discover for yourself particular mathematical relationships. This is one such task.
Here, you're intended to follow the instructions: using the technology provided (a graphing tool at the link) to discover the effect of changing the values of h and k in the function.
__
The first attachment shows plots from my graphing tool for different values of h. The red curve shows h=-2, the blue curve shows h=0, and the green curve shows h=1. If you look for the marked upward zero crossing, you see that it is unshifted for h=0, shifted left 2 units for h=-2, and shifted right 1 unit for h=1.
You are intended to conclude that the value of h represents the amount by which the function is shifted to the right.
__
The second attachment shows plots from my graphing tool for different values of k. As before, the red curve shows k=-2, the blue curve shows k=0, and the green curve shows k=1. Again, the upward zero crossing has been marked to show the effect. For k=-2, the curve is shifted down 2 units; for k=1, it is shifted up 1 unit. There is no shift when k=0.
You are intended to conclude that the value of k represents the amount by which the function is shifted upward.
__
If you do what the problem tells you to do, you can see these effects in real time, watching changes as they occur. You are expected to describe them. Only you know what the "vocabulary from 9/21-922" is.
_____
Additional comment
Math instruction builds on previously seen concepts. This is not a subject in which you can be successful adopting the strategy of "test and forget." You're better off with a strategy of "learn it thoroughly and remember," working as many problems as necessary to keep it fresh in your mind.
A membership sales person at a gym is given a choice of two different compensation plans. One plan offers a weekly salary of $300 plus a commision of $15 for each membership sold. The other plan offers no salary but pays $30 commission on each membership sold. How many memberships must the salesperson sell to make the same amount of money under both plans? FAST PLS
Answer: The salesperson must sell 20 memberships to make the same amount of money under both plans.
Step-by-step explanation:
Let x be the number of memberships.
In first plan,
Weekly salary of $300 plus a commission of $15 for each membership sold.
i.e. Earning (weekly) = 300+15x
In second plan,
The other plan offers no salary but pays $30 commission on each membership sold.
i.e. earning = 30x
According to the question, when [tex]300+15x=30x[/tex]
[tex]\Rightarrow\ 300=30x-15x\\\\\Rightarrow\ 300=15x\\\\\Rightarrow\ x=\dfrac{300}{15}\\\\\Rightarrow\ x=20[/tex]
Hence, the salesperson must sell 20 memberships to make the same amount of money under both plans.
The circumference of a circle is 18.84 meters. What is the circle's radius?
Answer:
[tex]\huge\boxed{\sf r = 9.42\ m}[/tex]
Step-by-step explanation:
Given Data:
Circumference = C = 18.84 m
Required:
Radius = r = ?
Formula:
r = C / 2
Solution:
r = 18.84 / 2
[tex]\rule[225]{225}{2}[/tex]
Answer:
9.42
Step-by-step explanation:
Half of the circumference is the radius to you do 18.84 divided by 2
to get your answer.
what is angle D? i don't know how to do the math due to being absent on a friday
Answer:
∠ D = 110°
Step-by-step explanation:
Assuming the quadrilateral is a parallelogram.
• Consecutive angles sum to 180° , then
∠ B + ∠ C = 180 , that is
5x + 3x + 4 = 180
8x + 4 = 180 ( subtract 4 from both sides )
8x = 176 ( divide both sides by 8 )
x = 22
Then
∠ B = 5x = 5 × 22 = 110°
• Opposite angles are congruent
∠ D = ∠ B = 110°
cuando un número es representado en notacion científica con exponente negativo¿ Hacia dónde se recorre el punto decimal para escribirlo en número normal ?
Answer:
El decimal siempre va a la izquierda.
Step-by-step explanation:
Mueve el decimal el número de veces que el exponente es. Por ejemplo: 5.3x10^-2. En el 5.3 vas a mover el decimal 2 veces a la izquierda.
0.053
help with the last question plss
It is an equation because it has an equal sign and it must solve for the variable which is "n".
Step-by-step explanation:
help please if cant read its a 15mm 20mm and 100mm
Answer:
Exact volume = 30,000 + 5,000pi cubic mm
Approximate volume = 45,700 cubic mm
========================================================
Explanation:
Break the figure into two pieces.
The top part is a half-cylinder with radius r = 20/2 = 10 mm and height h = 100 mm.
The volume of this half-cylinder is
V = 0.5*(full cylinder volume)
V = 0.5*pi*r^2*h
V = 0.5*pi*10^2*100
V = 5000pi
This is exact in terms of pi.
The lower part is a 20 mm by 100 mm by 15 mm rectangular block. It has volume of length*width*height = 20*100*15 = 30,000 cubic mm.
---------
We'll add the two volumes found earlier to get the overall volume.
The total exact volume is 30,000+5,000pi cubic mm.
To get an approximation, you can use something like pi = 3.14
30000+5000pi = 30000+5000*3.14 = 45,700 cubic mm is the approximate volume when using pi = 3.14
Airline passengers pay $439 to fly to California. For this price, customers may check 2 pieces of luggage. There is a fee of $25 for each additional piece of luggage a passenger wants to check. Which function can be used to find the amount in dollars a passenger has to pay to fly with p pieces of luggage, where p >2
Answer:
G. [tex] C = 25(p - 2) + 439 [/tex]
Step-by-step explanation:
Amount paid by customer to fly to California if carrying 2 pieces or less than 2 pieces of luggage for which they won't be charged for = $439
Fee for additional luggage = $25
Fee for additional luggage if an individual carries p luggages = 25(p - 2)
Total amount (C) if p pieces of luggage were carried by a customer travelling = fee for additional p pieces of luggage + $439
The function for this would be:
[tex] C = 25(p - 2) + 439 [/tex]
Aplicando el teorema de Tales elige la opción que determine la altura de una torre que proyecta una sombra de 14 m, tomando en cuenta que Kevin tiene una estatura de 1.75 m y proyecta una sombra de 3.5m
Utilizando el teorema, veremos que la altura de la torre es 7 metros.
¿Cual es la altura de la torre?
El teorema de Tales nos dice que para triangulos similares, la razon entre los catetos debe ser igual.
Esto significa que la razon entre la altura y el largo de la sombra de un objeto debe ser una constante.
Sabemos que Kevin tiene una estatura de 1.75m y proyecta una sombra de 3.5m
El cociente es:
3.5m/1.75m = 2
Es decir, la sombra tiene una longitud de dos veces la altura.
Entonces si la sombra de la torre es de 14m y la altura es h, tendremos:
14m/h = 2
h = 14m/2 = 7m
La altura de la torre es de 7 metros.
Sí quieres aprender más sobre triangulos rectangulos, puedes leer:
https://brainly.com/question/25839532
answer fast plzzzzzzzzz
Answer: D) 45 ft.
Step-by-step explanation:
You have the measurements for the sides BC and CD, if you divide BC by CD you get the dialation. Which is 2.5. Multiply 18 by 2.5, Congrgulations you have the answer!
Solve for the value of x in the figure below.
Solve for the value of y in the figure below.
Answer:
x=37
y=125
Step-by-step explanation:
97+28+x+18=180 (sum of the interior angles of a triangle is 180)
143+x=180
x=180-143
x=37
y+x+18=180 (sum of the angles on a straight line is 180°)
y+37+18=180
y+55=180
y=180-55
y=125
or
y=97+28(exterior angle of a triangle= 2 interior opposite angles)
y= 125