Mathematics College

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 1

Answer:

I think that it is B

Step-by-step explanation:

Answer 2

Answer:

Step-by-step explanation:

Related Questions

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

7(y+2)=3
seven times the sum of a number (y) and 2
means y+2 multiplying by 7

7(x+2)=3

7
times the sum of a number ‘x’, and (which means add) is equal ‘=‘ to 3

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

I GIVE BRAINLILSTE
.................................

Answers

the answer is a or d i’m not sure which one though sorry.

The answer is C 77%. This is the correct answer

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.

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:

What's 2/3 divided by 5

Answers

2/15 as a fraction and decimal form is 0.13-

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.

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

Answer: 36-1x. Explanation: he is obese

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

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.

CALCULATION

f'(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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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

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-
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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

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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plzzzzzz help me I need _____CORRECT_____ answers ASAP!!!!!!!!!! Plzzzzzz HURRY.

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.

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

Learn more about Simple Interest

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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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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

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:

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!

Can yall helppp !! This is Pythagorean Theorem (Level 1) math pleaseee I need helpp :'(

Answers

the answer would be square root of 50

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

please help please help

Answers

Answer:

i read the question but i really don't know the answer

35x should be your answer to that if not then i wasnt taught correctly

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.

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

Other Questions

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