Which is the correct answer?
A. The equation has one valid solution and no extraneous solutions.
B. The equation has one valid solution and one extraneous solution.
C. The equation has two valid solutions and no extraneous solutions.
D. The equation has no valid solutions and two extraneous solutions.
Answers
Answer:
I think that it is B
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
Related Questions
What's 2/3 divided by 5
Answers
Item 1
Workers install 840 chairs at a constant rate. After 8 days, the workers still have to install 360 chairs. How much time does it take to install the chairs from start to finish?
Answers
It took them 4 days to install 480 chairs which means if they were working at a constant rate they got 120 chairs installed daily. with 360 chairs left that means in 3 days they will finish. so overall, it took the workers 7 days to finish, or a week.
A company has borrowed $50000 at 10% compounded quarterly. The debt is amortized by equal payment each quarter ove 15 years. Find the quarterly payments and how much interest will be paid?
A company has borrowed $50000 at 10% compounded quarterly. The debt is amortized by equal payment each quarter ove 15 years. Find the quarterly payments and how much interest will be paid?
Answers
7500000 is interest will pay quarterly .
What do compound and simple interest mean?
Simple Interest is the amount returned for using the borrowed funds over a predetermined amount of time. When the total principal amount surpasses the payment due date and the interest rate over a certain period of time, this is known as compound interest. S.I. = (P, T, and R) x 100 is the formula.p = $50000
r = 10%
t = 15 years
interest = 50000 * 10 * 15 /100
= 7500000
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Need Help Solving this please
Answers
The value of given function is f'(x)=4 e^sin(x)cos (x)
WHAT IS DERIVATIVE?The derivative is what calculus is all about. The instantaneous pace at which a function changes with regard to one of its variables is known as the derivative. Finding the slope of the tangent line to the function at a given point is equal to doing this.
CALCULATIONf'(x) = d/dx ( 4 e^sin(x))
using differential rule d/dx (a x f ) = a x d/dx(f)
f'(x) = 4 x d/dx ( e ^ sin(x))
use the chain rule
f'(x)= 4 x d/dg ( e^g) x d/dx (sin (x))
f'(x)= 4 e^g x d/dx (sin (x))
f'(x)= 4 e^g x cos (x)
f'(x)=4 e^sin(x) x cos (x)
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Four times of a positive integer is less than twice its square by 10. Find the integer.
Answer:
Answers
Step-by-step explanation:
Let the integer be x.
4 times of positive integer = 4x
Twice its square = 2x²
Less by 10
ATQ,
[tex]2x^2-4x-10=0\\\\x^2-2x-5=0\\\\x=3.44, -1.44[/tex]
Hence, this is the required solution.
I GIVE BRAINLILSTE
.................................
Answers
Question 2
Which of the following is equal to -5/7?
5/7
- 5/7
-5/-7
-(-5/7)
Answers
Answer:
-5/7 (irreducible)
Step-by-step explanation:
So,-5/7=-5/7
For a scavenger hunt, Jim's mom distributed a bag of 875 jelly beans evenly into 25 plastic containers and hid them around the
yard. If, after the hunt, Jim has a total of 385 jelly beans, then how many of the plastic containers did he find?
OA.
15
ОВ.
275
OC.
11
490
Answers
Answer:
C. 11
Step-by-step explanation:
pls help i give brainliest if u answer early and good
Answers
Answer:
1 - BC = 5
2 - 174 (I think, im pretty sure tho)
3- 107
Step-by-step explanation:
Lets be real chief, you aren't here to learn. Ur taking test
Also, I got those numbers based on the images. The pic was kind of blurry
HELLPP
Find the slope of the line?
Answers
Answer:
-1/7
Step-by-step explanation:
If you count up once, for the y-value, then count over 7 times for the x-value, you get 1/7, rise over run.
Then, if you see the slope going backwards, you can see it is negative. Therefor, we get -1/7 for the slope.
A linear function has the equation 4x+6y= 50. What is the
value of a when y = 3?
x =
Answers
Answer: x=8
Step-by-step explanation:
4x+6y=50
4x+6(3)=50
4x+18=50
4x=32
x=8
The value of x when y = 3 in the linear function 4x + 6y = 50 is x = 8.
Use the concept of linear fucntion defined as:
The formula for a linear function is f(x) = mx + b, where m and b are real values. The slope-intercept form of a line is represented by the equation,
y = mx + b.
The given linear fucntion is:
4x+6y= 50
To find the value of x when y = 3,
Substitute y with 3 in the equation and solve for x.
4x + 6(3) = 50
4x + 18 = 50
To isolate x,
Subtract 18 from both sides:
4x = 50 - 18
4x = 32
Now we divide both sides by 4:
x = 32/4
x = 8
Hence,
When y = 3, the value of x in the linear function 4x + 6y = 50 is 8.
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Eric buys a pack of 36 chocolate bars. He gives one chocolate bar everyday to each of his best friends, Josh and Brian. Write the equation that shows the number of chocolate bars (y) he has left after x days. *
Answers
Answer:
36-1x
Step-by-step explanation:
plz let me know if I'm right
Please help! I need help fast!
Answers
Answer:
x=30
y=15
z=150
Step-by-step explanation:
take 2x+x+90=180
we get x=30
and y=15 and z=150
please help please help
Answers
Answer:
i read the question but i really don't know the answer
Can yall helppp !! This is Pythagorean Theorem (Level 1) math pleaseee I need helpp :'(
Answers
Answer:
sorry for spamming
Step-by-step explanation:
Indian version of brainly is a good place for cha*ting
you can also join if u wish
plzzzzzz help me I need _____CORRECT_____ answers ASAP!!!!!!!!!! Plzzzzzz HURRY.
Answers
Answer:
go look at my first question
Step-by-step explanation:
Decide whether the triangles are similar. If so, determine the appropriate expression to solve for X.
PLEASE HELP 10points plus Brainlyest if correct
Answers
Answer:D
Step-by-step explanation:
Tim and two of his friends were sharing an apartment and splitting the rent equally. If the rent costs x dollars per month, which expression describes how much Tim’s portion of the rent is?
Answers
Answer: (x/3)m
Step-by-step explanation:
Tim has to pay 1/3 of the rent per month
Which matrix represents the solution to this system of equations?
Answers
Answer:
1. b
Step-by-step explanation:
Answer:
b is correct
Step-by-step explanation:
took the test sorry bad at explaining
A housepainter mixed 5 gal of blue paint with every 9 gal of yellow paint in order to make a green paint. What is
a ratio of gallons of blue paint to gallons of yellow paint that will make the same shade of green paint?
a. 25:45
b. 15:45
c. 25:27
d. 20.54
Answers
Answer:
A
Step-by-step explanation:
5:9 is the original ratio.
we know that anything times 5 would have the ones place of either 5 or 0 so we can eliminate c and d. Then we test out the other two choices.
25/5=5
45/9=5
A is correct.
15/5=3
45/9=5
Option B is incorrect.
so, the ratio is 25:45
The answer is A!
una escalera recostada de la pared , con el piso si la escalera mide 8' y la distancia de la base a la pared es de 6'. Halla el ángulo que forma la escalera
Answers
Answer:
me no espanol 24
Step-by-step explanation:
srry
Measures of Position
13
on 14
stion 15
K
estion 16
Points: 0.43 of 1
A certain brand of automobile tire has a mean life span of 34,000 miles and a standard deviation of 2,350 miles. (Assume the life spans of the tires have a bell-shaped distribution.)
For the life span of 37,000 miles, z-score is 1.28
(Round to the nearest hundredth as needed)
(a) The life spans of three randomly selected tires are 33,000 miles, 37,000 miles, and 32,000 miles. Find the z-score that corresponds to each life span.
For the life span of 33,000 miles, 2-score is -0.43
(Round to the nearest hundredth as needed)
Question 16, 2.5.49
Part 5 of 5
For the We span of 32,000 miles, z-score is -0.85
(Round to the nearest hundredth as needed)
According to the z-scores, would the life spans of any of these tires be considered unusual?
O Yes
No
elp me solve this View an example
(b) The We spans of three randomly selected tires are 29,300 milles, 38,700 miles, and 34,000 mes. Using the empirical rule, find the percentile that corresponds to each life span
The Me span 29,300 miles corresponds to a percentile of
The Me span 38,700 miles comesponds to a percentile of
The Me span 34,000 miles corresponds to a percentile of
Get more help-
CO
DELL
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5 1. (1) More
Clean
Answers
If the mean span of automobile tires is 34000 miles and standard deviation is 2350 miles then the z scores that corresponds to the life spans of sample showing 33000 miles,37000 miles and 32000 miles are -0.4255, 1.2766 and -2.1277.
Given that mean span of automobile tire is 34000 miles and standard deviation is 2350 miles.
We are required to find the z score of the sample of 33,000 miles, 37,000 miles, and 32,000 miles.
A z-score basically gives us an idea of how far from the mean a data point is.
Z=(X-μ)/σ
In our case we have to find the mean of life span of three samples.
For the life span of 33000 miles,
Z=(33000-34000)/2350
=-1000/2350
=-0.4255
For the life span of 37000 miles,
Z=(37000-34000)/2350
=3000/2350
=1.2766
For the life span of 32000 miles,
Z=(32000-37000)/2350
=-5000/2350
=-2.1277
Hence if the mean span of automobile tires is 34000 miles and standard deviation is 2350 miles then the z scores that corresponds to the life spans of sample showing 33000 miles,37000 miles and 32000 miles are -0.4255, 1.2766 and -2.1277.
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Only first part of the question is understandable.
Translate the sentence into an equation
seven times the sum of a number and 2 is equal to 3
Use the variable y for the unknown number
Answers
seven times the sum of a number (y) and 2
means y+2 multiplying by 7
7
times the sum of a number ‘x’, and (which means add) is equal ‘=‘ to 3
I really need some help with this!
Answers
Answer:
The answer correct is B
Answer: B
Step-by-step explanation:I hope this helps :)
What form of a linear equation is y - 6 = -4(x + 2) ?
Answers
Answer:
Point slope form
Step-by-step explanation:
Given
[tex]y - 6 = -4(x + 2)[/tex]
Required
Determine the form of linear equation
A linear has just three forms:
1. The slope intercept form.: This is always in form of [tex]y = mx + b[/tex]
2. The point slope form: This is always in form of [tex]y - y_1 = m(x - cx_1([/tex]
2. The standard form: This is always in form of [tex]Ax + Bxx = c[/tex]
By comparison, the three forms with the question, we can see that option B answers the question.
In AABC, AB=8, BC=10, and AC=12. Let M, N, and K be the midpoints of the sides of AABC. Find length of each side of AMNK.
Answers
Answer:
4,5,6
Step-by-step explanation:
A midsegment connects two midpoints, and this triangle would be made up of all midsegments. If we know that midsegments are half of the side length, then we can get our answer.
Which of the following coordinates is located in Quadrant IV?
O (-2, -4)
(4, 2)
Ο Ο Ο
(-2, 4)
(4, -2)
please answer quick!!!
Answers
Answer:
(4,-2)
Step-by-step explanation:
quadrant 4 or IV has positive x and negative y
Find the measure of the missing angle.
Answers
Answer:
36 degrees
Step-by-step explanation:
The whole angle is 99. The known angle is 54. Take 54 from 99 and it's 36.
Hope It Helps
Sorry If I'm Wrong
If the sum of a number and three is tripled the result is one less than twice the number. Find the number.
Answers
If the sum of a number and three is tripled the result is one less than twice the number. The number is 14.
Write an equation and expressions by defining variables first.
"a number" is x.
Then "the sum of a number and three is tripled" is 3(x+3).
And "five less than twice the number" is 2x - 5.
Set them equal and solve for x.
3(x+3) = 2x -5
3x+9 = 2x-5
x+9 = -5
x = -14
Every aspect of our daily life involves numbers, including the number of rounds we run around the race track, the number of hours we sleep at night, and much more. In mathematics, numbers can be even or odd, prime or composite, decimal, fractional, rational or irrational, natural or integer, real or whole, rational or irrational, or any combination of these.
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If the sum of a number and three is tripled the result is one less than twice the number is -10.
Given that,
We have to write an equation and expressions by defining variables first.
Numbers are present in every part of our everyday lives, including the number of laps we complete on the racetrack, the number of hours we sleep at night, and many other things. In math, a number can be even, odd, prime, composite, decimal, fractional, rational, irrational, natural, integer, real, whole, or any combination of these.
Let take "number" is x.
Then from given "the sum of a number x and 3 is tripled" is 3(x+3).
And "twice the number x and less then 1" is 2x - 1.
Set them equal and solve for x.
3(x+3) = 2x -1
3x+9 = 2x-1
x+9 = -1
x = -1-9
x=-10
Therefore, the number is -10.
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Jenny puts 8 stickers on each page of her notebook she uses 72 stickers in. which equation can be used to find the number of pages of stickers in Jennys notebook