If the domain of the function y =2x + a
is the set of all real numbers except x = 5, find the value of a.​

Answers

Answer 1

Answer:

a=-10

Step-by-step explanation:

y=2x+a ,at x=5

y=2(5)+a

y=10+a

where y=0

10+a=0

a= -10


Related Questions

A line is perpendicular to the line given by the equation - 8 = 2y + 3x. What is the slope of the perpendicular line? 3​

Answers

Answer:

2/3 is the slope of the perpendicular line

Step-by-step explanation:

1) put into slope-intercept form (y=mx+b)

-8=2y+3x

-2y=3x+8

y=-3/2x-4

2) the line is perpendicular so the slope will be opposite and the reciprical of the original slope.

so, because the original was -3/2, the new one is 2/3

Sean is getting balloons for his grandfather's birthday party. He wants each balloon string to be 9 feet long. At the party store, string is sold by the yard. If Sean wants to get 66 balloons, how many yards of string will he need?

Answers

Answer:

198 yards

Step-by-step explanation:

Sean wants the sting of each balloon to be 9 feet, and he wants to get a total of 66 balloons.

The total length of stings required for 66 balloons would be;

total length of balloon strings = 66 x 9 feet

                                                 = 594 feet

But the string is sold by the yard at the store.

So that,

1 yard = 36 inches = 3 feet

x yard = 594 feet

Thus,

x = [tex]\frac{594}{3}[/tex]

  = 198 yards

x = 198 yards

Therefore, the total length of string that Sean would need is 198 yards.

58.6 km/h in cm/min it's easy I am trying this app​

Answers

Answer:

97666.67

Step-by-step explanation:

please mark as brainliest!!

What is gross income? Gross income is money earned before taxes are taken from a paycheck. Gross income is money earned after taxes are taken from a paycheck. Gross income is money paid to fund firefighters and police officers. Gross income is money paid for taxes.

Answers

Answer:

Gross income is money earned before taxes are taken from a paycheck

Step-by-step explanation:

Gross income is money earned before taxes are taken from a paycheck

Gross income refers to the total amount of money earned by an individual over a specific period of time usually a year before any deductions such as taxes is made.

Gross income includes income earned from all sources. It can also be called Gross pay on a paycheck.

For example, if an individual earns $100 in a year and is expected to pay a tax of 2%. The gross income is $100 before tax is deducted

Convert 34,121 to Scientific Notation

Answers

Answer:

3.4121 * 10 ^4

Step-by-step explanation:

34,121 is same as

3.4121 * 10 ^4

because the first number has to be between 0 and 10 and if you move the decimal 4 places to the right you got the initial number

Percent Problems
Tools
5
A gumball machine has 450 red gumballs. If the red gumballs are 75% of the total number of gumballs, how many gumballs are in
the gumball machine?
OA. 375
OB. 600
OC. 525
OD. 337.5

Answers

the correct answer is D. 337.5

if p(X)=x²-4x+5, then the value of p(1) is____
a)-1. b)0 c)1 d)2​

Answers

Answer:

[tex]p(x)=x^{2}-4x+5\\p(x)= 1^{2}-4(1)+5\\p(x)=1-4+5\\p(x)=2[/tex]

So 2 is the answer.

Hope this helps :D

Answer:

i think between a or c

Step-by-step explanation:

in a bag, there are 5 green candies, 3 red candies, and 7 orange candies. Once a candy is selected, it is not replaced. Answer with a fraction.
P(red, orange) =
p(green,green)=

Answers

Step-by-step explanation:

P(two green candies)

15 candies in total

5 green/15 total

which is equal to 1/3

left over candies= 13 because we are removing 2 green from the total

I need some help with MORE math if you could answer that would be great.

Answers

Answer:

bbbbbb

Step-by-step explanation:

:)

Answer:

D. [tex]\frac{81}{m^{7}}[/tex]

Step-by-step explanation:

[tex](3m^{-4})^{3}(3m^{5})[/tex]

[tex]\frac{81m^{5}}{m^{12}}[/tex]

[tex]\frac{81}{m^{7}}[/tex]

What could be the coordinates of point E?
O (2,-1)
O-1,2)
O (-3,-1)
O(-1,-3)

Answers

Answer: (-1,2)

Step-by-step explanation:

Answer: B. (-1,2)

Step-by-step explanation: Lines up nicely with points A & D.

A person paid 56.50 rupees as zakaat in a year find his saving for the Year​

Answers

paste the full question man

Yeah he’s from the future to carry the world.

Five minus one fourth

Answers

Answer:

can i tell u this story about when i had a dump, so like i just ate chetos so my butt was on fire and their was some fish i saw and i dicided it looked good so i ate it.

Step-by-step explanation:

oh yeah and the answer is 4.75

Answer:

19/4. /means fraction symbol

Step-by-step explanation:

5-1/4

20-1/4

19/4

Evan spent 20 hours doing homework last week. This week he spent 25 hours doing homework. He says that he spent 125% more time doing homework this week. Is he correct? Show your work to justify your decision.

Answers

Answer:

Step-by-step explanation:

Evan was not correct 125% means he over doubled his time doing homework. To double his time he would need 40 hours, and he only did 25.

Which number is equal to the expression 7 x 104 + 3 x 103 + 0 x 102 + 8 x 101 + 5 ?

Answers

Answer:

1

Step-by-step explanation:

Scientific notation is the way that scientists easily handle very large numbers or very small numbers. For example, instead of writing 0.0000000056, we write 5.6 x 10-9. So, how does this work?

We can think of 5.6 x 10-9 as the product of two numbers: 5.6 (the digit term) and 10-9 (the exponential term).

Here are some examples of scientific notation

Solve for X showing every step​

Answers

Answer:

x = 1

Step-by-step explanation:

3(x + 6) -5 = 16

You want to first add the 5 (*flipping the sign)  over to the 16

making your equation ...

3(x +6) = 21

Then you want to distribute the 3 to x and 6

making you equation

3x + 18 = 21

Then you want to subtract the 18 (*flipping the sign) to the right side

making the equation....

3x = 3

Lastly, divide the 3 on the left to the 3 on the right making the answer 1

x = 1

what is -8/9 as a decimal​

Answers

Answer:

-0.89

Hope I helped

use standard algorithm to solve
1,457 x 56​

Answers

it needs 20 characters to submit lol

Are these good notes on math?
Quarter 2 Lesson 4: Scientific Notation

All Vocabulary words learned in 2020
A base is the number being used as a factor in an exponential expression.
An exponent is the number that shows how many times a base is used as a factor.
An equation is a statement that tells you two expressions are equivalent.
A cube root is any number that is multiplied together three times to get the original number.
A perfect cube is the product of an integer multiplied together three times.
A repeating decimal is a decimal that never ends but instead repeats the same digit or group of digits over and over.
A terminating decimal is a decimal that ends, or terminates.
An irrational number is a number that cannot be expressed as the quotient of two integers. The decimal never terminates or repeats.
A rational number is a number that can be expressed as the quotient of two integers.
A power of ten is a number that can be written as a product of tens.
Scientific Notation is a way to express a number as the product of a number greater than or equal to 1 but less than 10 and a power of ten.
A function is a relationship between an independent variable,x, and a dependent variable,y, where each value of x (imput) has one and only one value of y (output)

Answers

Answer:

yes

Step-by-step explanation:

it sounds good to me

Please help me please

Answers

Answer:

the answer is A ...........

help i need the answer

Answers

Answer:

the first one

[tex].5x+10\geq .25x+15[/tex]

Step-by-step explanation:

They want to know how much I will take for the amount they have read to be the same. So that automatically crosses out the last one. They asking you to subtract anything so that crosses the third one out. The second option has the number of pages the both read first switched so that crosses that one out.

I hope this explanation was helpful.

A saleswoman is paid $80 a day plus $6 for each sale she makes. She wants to earn more than $150 today. Write an inequality that represents the number of sales, x, the saleswoman must make today to earn more than $150. What is the least number of sales she must make to reach her sales goal

Answers

Answer:

12

Step-by-step explanation:

Given that:

Daily wages paid to a saleswoman = $80

Wages paid for each sale made by her = $6

Target of today's earnings = more than $150

To find:

Least number of sales to be made so that the total earnings today is more than $150.

Solution:

Number of sales for today = [tex]x[/tex]

Wages for one sale = $6

Wages for [tex]x[/tex] number of sales = $6[tex]x[/tex]

Total earnings = Per day sales + Wages for [tex]x[/tex] number of sales > $150

[tex]80 + 6x > 150[/tex]

we need to solve for above inequality to find the least number of sales to be made to meet the goal.

Subtracting 80 from both sides:

[tex]\Rightarrow 6x>70\\[/tex]

Dividing both sides by 6:

[tex]\Rightarrow x > 11[/tex]

Therefore, at least 12 sales must be made.

3 1⁄3 × 2 3⁄4 × 1 1⁄5 =

Answers

[tex]3 \frac{1}{3} \times 2 \frac{3}{4} \times 1 \frac{1}{5} [/tex]

[tex] \frac{10}{3} \times \frac{11}{4} \times \frac{6}{5} [/tex]

[tex] \frac{10 \times 11 \times 6}{3 \times 4 \times 5} [/tex]

[tex] \frac{660}{60} [/tex]

[tex] \frac{66}{6} [/tex]

[tex]11[/tex]

Answer:10/3 x 11/4 x 6/5

2/3x11/4x6 2x11/4x2 11/2x2=11

Step-by-step explanation:

Can you please show your work and explain if possible.​

Answers

Answer:

CHEATING ON CLASSWORK

Step-by-step explanation:

IS FORBIDDEN

I need help please anybody

Answers

Answer:

can u type the words out

Step-by-step explanation:

Plzzzzzzzz help I don’t understand

Answers

Answer:

Slope formula: y2-y1/x2-x1

Step-by-step explanation:

8-6/9-6= 2/0

Answer:

Step-by-step explanation:

Alright we need to prove that both the triangles are similar so lets get started

The slope formula is:

Slope = Change in y / Change in x

m = Δy / Δx

[tex]m=\frac{y_2-y_1}{x_2-x_1} \\\\[/tex]

Where, m is the slope and [tex](x_1,y_1) , (x_2,y_2)\\[/tex] are any points on the line

In this graph we are given three points which are

(0 , 2) , ( 6 , 6) and (9 , 8)

So for our first triangle we use the 2 points (0 , 2) and (6 ,6) and calculate the slope,

[tex]m=\frac{y_2-y_1}{x_2-x_1}\\\\m=\frac{6-2}{6-0}\\\\m=4/6\\\\m=2/3\\[/tex]

So the slope turns out to be 2/3 , Now for our second triangle use the 2 points (6 , 6) and (9 , 8)

[tex]m=\frac{y_2-y_1}{x_2-x_1}\\\\m=\frac{8-6}{9-6}\\\\m=2/3\\[/tex]

So we can see the the slope's are equal that's the answer to your first part.

Second part

Yes they are similar due to the property of corresponding angles where angle x of the first triangle equals angle x for the second triangle and angle y for the first triangle equals angle y for the second triangle and both the triangles have 90° se they are similar because all three angles are similar. (AAA = angle angle angle property) I have attached a to make you understand it better.

Find the GCF of 36 and 4.

Answers

Answer:

4

Step-by-step explanation:

4 is the greatest number that goes into 36 and 4.

Answer:

4

Step-by-step explanation:

Calculate the prime factors of 4 and 36, then find the greatest common factor.

Answer is 4.

I need help with my math homework. It would mean a lot to me if someone coupd explain it. Ill type the directions. It says: Using the graphs below, write the linear equation of the line in slope intercept form (use format: no spaces, y=mx+b) ansaers and earn pixels for correct answers. Answer all 18 problems correctly to reveal the pixel art image. Here are the graphs I need to do. Please help me out if you can. I will make another question on my account so I can add more pictures of the graphs because I can only do five on here.

Answers

Ok I will definitely help you.

Complete the table to find the value of nonzero number raised to the power of 0.

Answers

Answer:

9^3=729

9^2=81

9^1=9

9^0=1

i agree with the other person they are right!!! it’s exactly what i got

y-4=-2(x+3) what's the answer

Answers

Answer:

y=-2x-2

Step-by-step explanation:

y-4=-2(x+3)

Remove parentheses

y-4=-2x-6

Move your constant to the right

4=-2x-6+4

Calculate the sum

y= -2x-2

Which of the following equations represents the graph shown?
o f(x) = -x + 2
o f(x) = -x-2
o f(x) = x + 2

Answers

Answer:

It's the first one. -x+2

Step-by-step explanation:

The slope is negative and the line intersects the y-intercept at positive 2.

He’s correct .yay ya
Other Questions
Scrooge refuses to give his servants money at Christmas time. What does this reveal about his priorities? A. He really does care about them. He is planning a surprise vacation for them.B. Deep down he cares about them, but he is saving his money for retirement.C. He cares little about treating them fairly or trying to win their affection. He cares only about hoarding his own money.D. He wants them to work extra time if they want extra money.PLEASE HELP NEED HELP ASAP, WILL GIVE BRAINLIEST Which rectangular equation represents the parametric equations x = 2sec(t) + 1 and y = 6tan(t)? The Sears Tower in Chicago is approximately 444 m tall Suppose a bookdropped from the top of the building what would be the book's velocity point 222 m above the ground Neglectair resistance.O 66.0 m/s (downwards)2.00 m/s upwards)22.0 m/s (downwands)/s () 66.0 m/swards, PLEASE HELP QUICK!There are 3 questions pleas answer them all An auto-parts store offers a fuel additive that claims to increase a vehicles gas mileage. The additive is poured into a vehicles gasoline tank after the tank is filled. To measure the claim, 30 taxi drivers receive a bottle of the additive to use the next time they fill their gas tank. The drivers then compare their gas mileage with the additive to their gas mileage before the additive was used.What is the response variable in this scenario?the age of the carthe 30 cars used in the studythe use of the additivethe gas mileage after the additive is used PLEASE HELP ! What noticeable physical features surround each city-state and how might these features influence the lives of people in Athens and Sparta? PLA ANSWER I DONT KNOW THIS PLEASE HELP ASAP 18 POINTS!! WILL MARK BRAINLIEST Which statements correctly describe the Renaissance?Select all correct answers.Famine and plague spread death across Europe.Great cathedrals were built throughout Europe.Popes and wealthy families became patrons of architecture, art, and literature.Many city-states in northern Italy formed republics led by powerful merchant families.Artists painted real figures and placed them in natural-looking settings.A period of artistic and literary creativity began in the city-state of Florence and slowly spread throughout Europe. Randall collects postcards that his friendssend him when they travel. He can put6 cards on one scrapbook page. Howmany pages does Randall need to fit42 postcards? (SHOW YOUR WORK/STEPS) A sequence is recursively defined by f(1)=3,f(n)=2* f(n-1) for n >=2. Write the equation for the nth term How did the US government control price increases for scarce goods? It set a price scale determining what different people could afford. It established the Office of Price Administration. It set new prices weekly depending on the availability of goods. It established the War Production Board to study pricing of scarce goods. will give brinley crown thing! show your work and explain...- 109 + 9x = 86 - 4x Which expressions are equivalent to 4 (7 y)?Drag and drop the equivalent expressions into the box.(7 y) 44 7 + 4 Y(4 7 y28 y474 y PLEASE HELP ASAP!!!50 POINTS AND BRAINLY!! If you could change one property of a substance ( solid, liquid, and gas) you have to use in your daily life, what would it be and why?Please hurryI will give you BRAINLIEST!!!!!!And pleaseee write 5 sentences why?? 9 multiplied by 21 equals what The sum of interior angles of a regular polygon is 1080.Find the size of each exterior angle factor completely please So if a video that is 15:34 how long is it when 2 times speed tip: times 15 min. buy 60 then divdie all of the sec. by 2 Which statement best summarizes how human lifestyles are currently affecting the sustainability of resources on Earth? What is UNTRUE of the Red Scare of the 1950s?A.The Hollywood Ten refused to testify in front of HUACb. House Un-American Activities Committee pursued communistsSenator McCarthy claimed to have a list of communistsd. Eisenhower & Truman supported the communist hunts