Mathematics High School

Solve by factoring:
x² – 5x - 14=0
O A. x = 7,X = -2
B. x = -7, x = 2
O C. x = -1, x = 14
O D. x=-14, x = 1
Answer ASAP!

Answers

Answer 1

Answer:

A

Step-by-step explanation:

Given

x² - 5x - 14 = 0

Consider the factors of the constant term (- 14) which sum to give the coefficient of the x- term (- 5)

The factors are - 7 and + 2, since

- 7 × 2 = - 14 and - 7 + 2 = - 5, thus

(x - 7)(x + 2) = 0

Equate each factor to zero and solve for x

x - 7 = 0 ⇒ x = 7

x + 2 = 0 ⇒ x = - 2

Answer 2

Answer:

A. x=-7, x=2

Step-by-step explanation:

Related Questions

What is the degree measure of V?

A) 31 (degrees)

B) 34 (degrees

C) 58 (degrees)

D) 74 (degrees)

Answers

I think it is 34 (degrees)

what does democracy mean and how do we practice it in the United States of America ​PLEASE HELPPP!!!!

Answers

Answer:

a system of government by the whole population or all the eligible members of a state, typically through elected representatives. The United States is one of the world's developed democracies where third parties have the least political influence. The federal entity created by the U.S. Constitution is the dominant feature of the American governmental system.

Step-by-step explanation:

Which bag of chips do you choose?

Bag A: 16 ounce bag for $2.00

Bag B: 12 ounce bag for $1.50

Answers

Answer: B


Explanation:


You want to spend at most $1200 on a new laptop. If you make a $400 down payment,
then pay the same amount every month for 12 months. Which Inequality could be use
to solve to find out how much you can pay each month.
12x + 400 < 1200
12x + 400 < 1200
12x + 400 1200
12x + 1200 > 400

Answers

Answer:

12x+400 [tex]\leq[/tex] 1200

Step-by-step explanation:

At most means it has to be the exact number or less. So, the inequality sign would be less than or equal to.

Hope this helps!! c:

Which one of the following pairs of angles x and y are supplementary, answer ASAP i NEED help please, 10 points per person

Answers

Answer:3. B 4. B

Step-by-step explanation:3. Supplementary equals 180, 113 + 67 = 180

rational algebraic expression is an expression that is the ratio of two​

Answers

Answer:

A rational expression is a ratio of two polynomials. The domain of a rational expression is all real numbers except those that make the denominator equal to zero.

Step-by-step explanation:

help please! I am doing multivariable equations. ​

Answers

Answer:

(c+3b)/8 = a

Step-by-step explanation:

c = 8a -3b

Add 3b to each side

c +3b = 8a-3b+3b

c +3b = 8a

Divide each side by 8

(c+3b)/8 = 8a/8

(c+3b)/8 = a

Answer: a=3/8b+c/8

Explanation: c=8a-3b, if you're wanted to solve for a you need to subtract 8a from both sides, c-8a=-3b then subtract c from both sides, -8a=-3b-c then divide both sides by -8 a=3/8b+c/8

BRAINLIST OPPORTUNITY

what is the slope of the line on the graph?

Answers

slope is represented by m, and to find it you have to pick 2 points. i picked (0,2) and (-2,1)
the answer is

m= 1/2

A person invested $8,800 in an account growing at a rate allowing the money to
double every 15 years. How much money would be in the account after 4 years, to the
nearest dollar?

Answers

Answer:10587

Step-by-step explanation: better than original answer

A taxi charges $2.50 for each ride plus $1.25 per mile traveled.
If the total charge for one ride was $8.75, how many miles
were traveled?

Answers

Answer:

5 miles

Step-by-step explanation:

We have to figure out how many times $1.25 was charged. First, we have to do 2.50 + 1.25 = 3.75 + 1.25 = 5 + 1.25 = 6.25 + 1.25 = 7.5 + 1.25 = 8.75

We charged $1.25 5 times, so this means that it was 5 miles.

Answer:

5 miles

Explanation:

this is because if you subtract 2.50 from 8.75 then you will be left with 6.25. after you do this then you divide 6.25 by 1.25 and this will give you 5 miles.

A cube has an edge measuring 4 inches. What is the surface area of the cube, in inches²?

Answers

Answer: 96 in2

Step-by-step explanation: This is because u have to mutiple the two bases and the lateral sides to get your area

The surface area of the cube, in inches² is 96in²

The formula for calculating the surface area of a cube is expressed as:

S = 6L²

L is the side length of the cube

Given that L = 4in. Substitute the given parameter into the formula:

S = 6(4)²

S = 6(16)

S = 96in²

Hence the surface area of the cube, in inches² is 96in²

Learn more here: https://brainly.com/question/3734595

I need the answers for 21 and 23 please
:(

Answers

Answer:

21. d=2, YZ=16

23. a=6, YZ=38

Step-by-step explanation:

Your cousin plays point guard for her community basketball team. When she plays in a game, four out of every seven baskets she scores for her team are lay-ups.
If, during a month of playing in basketball games, your cousin makes twenty four lay-ups, how many total baskets did she score for her team?

Answers

Answer:

12

Step-by-step explanation:

count to 69 and you got 12 lay ups

Answer:

12

Step-by-step explanation:

--a cuando a=-4 y b=7?
Cual es el valor de ese problema?

Answers

Answer:  es -4 + 7 = 3

Step-by-step explanation:

Arleen has a gift card for a local lawn and garden store. She uses the gift card to rent a tiller for 3 days. It costs $48 per day to rent the tiller. She also buys a rake for $5. Part 1 out of 2 Find the change to the value of her gift card. The value on her gift card decreased by dollars.

Answers

Given :

Arleen has a gift card for a local lawn and garden store. She uses the gift card to . It costs $48 per day to rent the tiller. She also buys a rake for $5.

To Find :

The value on her gift card decreased by how many dollars.

Solution :

Decrease in dollar is given by :

[tex]D =\text{ rent a tiller for 3 days+ price of rake}\\\\D= \$( 48\times 3 + 5)\\\\D = \$149[/tex]

Therefore, the value on her gift card decreased by 149 dollars.

Hence, this is the required solution.

True or false the square root of 100 is 50

Answers

Answer:

false  

Step-by-step explanation:

the square root is 10

false, square root is 10. 10X10=100

A cylinder has a volume of 320n cubic inches and a height of 5 inches.
What is the radius of the cylinder?
A. 4 inches
B. 8 inches
C. 16 inches
D. 32 inches

Answers

B is the correct answer

(-13)2= (15* -11 + -4)

the 2 is an exponent

Answers

Answer:

-26= 15 x -15

Step-by-step explanation:

Sorry the question wasn't really clear??

Answer:

(-13)^2= (15* -11 + -4) = -169

Step-by-step explanation:

Replace all occurrences of + − with a single − . A plus sign followed by a minus sign has the same mathematical meaning as a single minus sign

because1 x −1 = −1

(−13)^2=15 x −11 −4

Raise − 13 to the power of 2 .

169=15 x −11 −4

Multiply 15 by −11.

169 = −165 − 4

and finally Subtract 4 from−165.

169 = −169

if its (-13)^2 / (15*-11+-4) as the orginal post did not say divided, the answer would be -1 hope his helps.

CAN YOU'LL HELP WITH THIS QUESTION ASAP PLZZZZ. GIVING BRIANLIEST AND POINTS.

The endpoints of a line segment graphed on the coordinate system are (−7, 3) and (2, 5). What is the range of the graph?
A) R: {3 ≤ x ≤ 5}
B) R: {3 ≤ y ≤ 5}
C) R: {−7 ≤ x < 5}
D) R: {−7 < x ≤ 2;}

Answers

Answer:

It is D

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

The endpoints of a line segment graphed on the coordinate system are (−7, 3) and (2, 5). What is the range of the graph? the x values are the domains which are the first numbers so in this case the domains would be -7 and 2 but this question is talking about range which is the y in other words its the second numbers which is 3 and 5

URGENT I NEED HELP ON THIS DUE BY 12

Answers

See the marked up picture for a sketch. Yes because we know that AB is congruent to CD, CB is congruent to CB, and DB is congruent to AC.

Write an equation for a line with a slope of 2/3 and passes through point (0,4) in slope intercept form.

Answers

Answer:

5 and 6 is slope of two/three

What is the value of 5(-3)?

Answers

Answer. -15
Explanation. We know that a positive multiplied by a negative (or vice versa) equals a negative. If it’s confusing, you can even take out the negative and add it at the end. Remember, 1 negative means the answer is negative, 2 negatives means the answer is positive, and two positives are just positive (this is used for multiplication and division ONLY). So, to solve, 5•3 is 15, and just make it negative, -15!
good luck :)

The inequality below is equivalent to which of the following

7-(2/3)x 9

A.x>9

B.X>-35

C.x<9

D.x<-35

Answers

Your answer will be C. :)

50 points if you answer correctly

Answers

Answer:

[tex]f(3) = {3}^{2} + 5(3) - 9 \\ f(3) = 9 + 15 - 9 \\ f(3) = 15[/tex]

Answer:

1. D. 15

2. A. 3

3. A. c= 6g+5

4. A. All real numbers

5. D

                                         

                                     

Please read where it states “point S is in between points R and T” thank you

Answers

Answer:

RS: 26

ST: 40

Step-by-step explanation:

RS + ST = RT

3x - 16 + 4x - 8 = 60

3x + 4x - 16 - 8 = 60

7x - 24 + 24 = 60 + 24

7x = 84

7x / 7 = 84 / 7

x = 12

---------------------------------------

RS

3x - 16

3 (12) - 16

36 - 16

20

---------------------------------------

ST

4x - 8

4 (12) - 8

48 - 8

40

----------------------------------------

RS + ST = RT

20 + 40 = RT

60 = RT

pls explain it,,,,,,,,,,,,

Answers

Answer:

B. not a function

Step-by-step explanation:

y has 2 solutions: +√1-6x and -√1-6x

For y to be a function, it should only have one solution. That's why y is not a function.

Hope it will help :)

Laurie earns $7.50 per hour at the fruit stand plus an extra $2.00 per hour on Sundays. One week in August, she worked on Sunday, Monday, and Wednesday. She worked the same number of hours on Monday and on Wednesday. On Sunday she worked 4 hours. If she earned a total of $83.00 for the week, how many hours did Laurie work on Monday? Enter and solve an equation.

Answers

Answer:

Hi there!

Your answer is:

She worked for 3 Hours on Monday.

Step-by-step explanation:

7.5$ per hour

7.5+2$ per hour on Sundays.

In August:

Sunday, Monday, Wednesday.

# of hours for Monday =Wednesday

Sunday= 4 hrs (which would mean 9.5$ * 4)

Monday and Wednesday will be modeled by X

X + 38$ (earned sunday)= 83$

-38

X= 45$

Since X represents BOTH monday and wednesday, divide by 2

45/2 = 22.5$

CHECK YOUR WORK

22.5$ (monday) + 22.5$ (wednesday) + 38$ (sunday)= 83???

45=38=83???

83=83 YES

Now, to determine how many hours that is, we divide the earned wages by the wage per hour.

22.5 / 7.5 = 3 HOURS

CHECK YOUR WORK

3 hours * 7.5 per hour = 22.5???

22.5 = 22.5 YES

Hope this helps

If she worked the same number of hours on Monday and on Wednesday. On Sunday she worked 4 hours. If she earned a total of $83.00 for the week, the number of  hours that Laurie work on Monday will be: 3 hours

$7.5= 1 hour  Other days

$9.50 or ($7.50+$2.00) = 1 hour Sunday

Let Sunday= 4×$9.50 =$38

Let Monday= x × $7.5=$7.5x

Let Wednesday= x × $7.5=$7.5x

Let Total earning=$83

Let x represent the number of  hours

Hence:

First step  is to formulate

7.5x+7.5x+38=83

Second step is to calculate how many hours did Laurie work on Monday

x =83-38÷ 7.5+7.5

x=83-38÷15

x=45÷15

x=3 hours

Inconclusion If she worked the same number of hours on Monday and on Wednesday. On Sunday she worked 4 hours. If she earned a total of $83.00 for the week, the number of  hours that Laurie work on Monday will be: 3 hours

Learn more here:

https://brainly.com/question/12506050

the difference between the highest and lowest observation is known as​

Answers

Answer:

I believe the difference between the highest and lowest observation is known as range.

Answer:

Step-by-step explanation:

The difference between the highest and lowest observation is known as​ Range

5 − 2x + 2 = 12
work below hurry!!

Answers

5-2 is 3. Subtract three from both sides. 2x=8. Divide by 2. X=4

Step-by-step explanation:

5-2x+2=12 given

-2x+7=12 combine like terms

-2x=5 subtraction property

X=-2.5 or 5/2 ANSWER

the categories this number belongs to: 9√

Answers

I think U gave an incorrect question

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