Can someone please solve this using quadratic formula 2x^2 -7x -15=0

Answers

Answer 1

Solution

x=5

x= -3/2

Hopefully its good


Related Questions


If you add Natalie's age and Fred's age, the result is 44. If you add Fred's age to 4 times
Natalie's age, the result is 83. Write and solve a system of equations to find how old Fred and Natalie
are

Answers

Answer: 31, 13

Step-by-step explanation:

PLEASE ANSWER ASAP FOR BRAINLEST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1

Answers

Answer:

bottom half

bottom- 3 x 12.5 = 37.5

front side- 3 x 4 = 12

back side- 12

left side- 4 x 12.5 = 50

right side- 50

total: 161.5

top half

front triangle- (3x4)/2 = 6

back triangle- 6

left side- 4 x 12.5 = 50

right side- 50

total: 112

161.5 + 112 = 273.5

Danny reads for one half hour every day.
At the end of four weeks, how many hours has Danny read?

Answers

There are 7 days in a week.

1/2 hour x 7 days = 3 1/2 hours per week.

3 1/2 hours per week x 4 weeks = 14 hours

He read for a total of 14 hours

Answer:

14 hours

Step-by-step explanation:

half hour = 30 minutes

1 week = 7 days

30(minutes) x 7(days) = 210 minutes

210(minutes) x 4(weeks) = 840 minutes

Now we know how much time Danny has read (840 minutes), but we need to know what that is in hours.

840 minutes = how long Danny has read in minutes

60 minutes = hour

840(minutes) ÷ 60(minutes) = 14(hours)

given triangle ABC if angleA=25degrees, angle B=75degrees and a=14 what is the length of side b to the nearest whole number

Answers

9514 1404 393

Answer:

  b = 32

Step-by-step explanation:

The law of sines tells you ...

  b = a·sin(B)/sin(A)

  b = 14·sin(75°)/sin(25°) ≈ 31.998

  b ≈ 32 . . . . units

ik this is alot but please help me. ​

Answers

Answer:

help u in what please ask the question so we can anwser

What number divided by 4 equals 6?
Type the correct answer, then press Enter.

Answers

Answer:

24

Step-by-step explanation:

Let x be the number.

[tex]x/4=6[/tex]

Multiply both sides by 4 to isolate x

[tex](x/4)4=6*4\\x=24[/tex]

I hope this helps!

there are 72 students in pe.12 students well be in a team.how many teams can be formed​

Answers

Answer:

6 teams

Step-by-step explanation:

72/12 = 6

(1.75)^2 in expanded form

Answers

Answer:

1.75 x 1.75

fillerfillerfiller

lol plss we did this literally a week ago and I forgot how to do it

Answers

Answer:

okay so i believe its area (if its not ill comment the right answer) so you just do the height (12) times the length (12) giving you 144

Step-by-step explanation:

Find the perimeter of the figure to the nearest hundredth. due today

Answers

*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆

Answer: 36.57

Explanation:

6x4 = 24

3.14(2)^2 = 12.56

12.57+24=36.57

I hope this helped!

<!> Brainliest is appreciated! <!>

- Zack Slocum

*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆

Impossible Not Ukely Equslly Ukely & Unlikely Ukoly Certain Events: a. You will win the grand prize in a raffle if you purchased 2 of the 100 tickets. b. You will wait less than 10 minutes before ordering at a fast-food restaurant. c. You will get an even number when you roll a standard number cube. d. A four-year-old child is over six feet tall. e. No one in your class will be late to class next week. f. The next baby born at a hospital will be a boy, g. It will snow at our school on July 1. h. The sun will set today before 11:00 p.m. i. Spinning the spinner shown will result in green. j. Spinning the spinner shown will result in yellow.​

Answers

Answer:

a. Unikely

b. Likely

c. Equally likely

d. Unlikely

e. Equally likely

f. Equally likely

g. Unlikely

h. Likely

i. No SPINNER SHOWN?

j. NO SPINNER SHOWN?

Step-by-step explanation:

Identify the correct form of the following geometric sequence.

5 , 35 , 245 , 1,715 , ...

Answers

The correct form of the geometric sequence is:[tex]5, 35, 245, 1,715, ... = 5, 5 * 7, 5 * 7^2, 5 * 7^3, ...[/tex]

how to Identify the correct form of the geometric sequence.

To identify the correct form of the geometric sequence 5, 35, 245, 1,715, ..., we can look for a common ratio between consecutive terms.

To find the common ratio, we divide any term by its preceding term. Let's take the second and first terms:

35 / 5 = 7

Now, let's check the third and second terms:

245 / 35 = 7

Similarly, for the fourth and third terms:

1,715 / 245 = 7

Since we obtained the same result (7) for all ratios, we can conclude that the common ratio of this geometric sequence is 7.

Now, let's express the general form of the sequence using the first term (a) and the common ratio (r):

a, ar, [tex]ar^2,[/tex] [tex]ar^3,[/tex] ...

Substituting the given values:

a = 5 (the first term)

r = 7 (the common ratio)

The correct form of the geometric sequence is:

[tex]5, 5 * 7, 5 * 7^2, 5 * 7^3[/tex], ...

Simplifying the terms, we get:

5, 35, 245, 1,715, ...

Therefore, the correct form of the geometric sequence is:

5, 35, 245, 1,715, ... = 5, 5 * 7, 5 * 7^2, 5 * 7^3, ...

Learn more about geometric sequence at https://brainly.com/question/1509142

#SPJ1



What is the probability that a randomly selected graduate has a job if he or she is attending college? Give your answer as

a decimal precise to two decimal places.

P=

What is the probability that a randomly selected graduate attends college if he or she has a job? Give your answer as a

decimal precise to two decimal places.

P-

Answers

Complete question :

Suppose that of the 300 seniors who graduated from Schwarzchild High School last spring, some have jobs, some are attending college, and some are doing both. The following Venn diagram shows the number of graduates in each category. What is the probability that a randomly selected graduate has a job if he or she is attending college? Give your answer as a decimal precise to two decimal places.

What is the probability that a randomly selected graduate attends college if he or she has a job? Give your answer as a decimal precise to two decimal places.

Answer:

0.56 ; 0.60

Step-by-step explanation:

From The attached Venn diagram :

C = attend college ; J = has a job

P(C) = (35+45)/300 = 80/300 = 8/30

P(J) = (30+45)/300 = 75/300 = 0.25

P(C n J) = 45 /300 = 0.15

1.)

P(J | C) = P(C n J) / P(C)

P(J | C) = 0.15 / (8/30)

P(J | C) = 0.5625 = 0.56

2.)

P(C | J) = P(C n J) / P(J)

P(C | J) = 0.15 / (0.25)

P(C | J) = 0.6 = 0.60

Which graph shows a proportional relationship?
A. B. C D.

Answers

Answer:

B

Step-by-step explanation:

a proportional relationship must have a straight line when graphed and it must go through the origin (0,0)

Right off the bat we can eliminate answer choice C because the line is not straight

the answer is not a nor d

the line may be straight but it does not go through the origin therefore it is not a proportional relationship

B makes a straight line and the line goes through the origin therefore B is the answer

Answer is B...........

What is the quotient ?

Answers

Answer: A quotient is the the number resulting from the division of one number by another.

Step-by-step explanation:

24/4 the quotient (answer) is 6

The answer is A because you have to simplify the expression then you get 1/7^8

Could someone help me with with 6-10??

Answers

Answer:

You need a protractor

Step-by-step explanation:

to measure the angles

HELP!!!!! WILL GIVE BRANLIEST !!!!!

Answers

Answer:

F = (-2,4); E = (-2,0); D = (2,0)

Step-by-step explanation:

F = 4 points from A, so by a scale factor of 2, it would be 2 times father away from A. The same thing applies for all of the other points; just find how much father A is from a point, then dilate that point by multiplying it by the scale factor, and settling the point closer or father from A.

Please answer now! Please!
Is this proportional? What is the COP? What is the equation?

Answers

Answer:

Step-by-step explanation:

The constant of proportionality is y/x=k. In this case it is 30/5=48/8...6 k=6

The equation is

y=6x where y=number of wheels and x=number of buses

CAN SOMEONE HELP ME!!

Rich needs $50,000 for a down payment on a home in 5 years. How much must he deposit into an account that pays 6% interest, com pounded quarterly , in order to meet his goal ?

Answers

Answer

37 ,123.52

Explanation

the image above, hope it helps

The difference of two numbers is 14.Twice the smaller is 6 more than the larger.Find the numbers.

Answers

the numbers are 6 2/3 and 7 1/3

Simplify:
Camilla goes to the super market and buys two apples. each apple is $1.75. Camilla has $5.00 left. write an expression to represents this problem. Don't forget to use a variable!

Answers

Answer:

[tex] \huge \boxed{ \boxed{t - 3.5 = 5}}[/tex]

Step-by-step explanation:

to understand thisyou need to know about:equationlet's solve:

a apple costs 1.75

2 apple costs 1.75×2=3.5

let her total money be t

according to the question

t-3.5=5

What is the equation of the line that passes through the point (-4,-8)(−4,−8) and has a slope of 44?

Answers

Answer:

y = 44x + 184

Step-by-step explanation:

y = mx + b

-8 = 44(-4) +b

-8 = -176 + b

176 + 8 = b

184 = b

15% of 20 is ??? please helpp

Answers

Answer:

I believe it is 3

Step-by-step explanation:

Answer:

the answer is 3 brainlest plz

Step-by-step explanation:

Quadrilateral A'B'C'D' Is the image of quadrilateral ABCD under a dilation.

What is the scale factor of the dilation?

Answers

Answer:

Scale factor = [tex]\frac{1}{4}[/tex]

Step-by-step explanation:

Formula for the dilation to be used,

Scale factor = [tex]\frac{\text{Dimension of the image}}{\text{Dimension of the original}}[/tex]

                    = [tex]\frac{A'B'}{AB}[/tex]

                    = [tex]\frac{1}{4}[/tex]

Therefore, scale factor by which quadrilateral ABCD has been dilated to form image quadrilateral A'B'C'D' is [tex]\frac{1}{4}[/tex].

A pizza pan is removed at 9:00 PM from an oven whose temperature is fixed at 450°F into a room that is a constant 70°F. After 5​ minutes, the pizza pan is at 300°F.
​(a) At what time is the temperature of the pan 125°F? ​
(b) Determine the time that needs to elapse before the pan is 150°. ​
(c) What do you notice about the temperature as time​ passes?

Answers

Answer:

A) It will get to a temperature of 125°F at 9:19 PM

B) It will get to a temperature of 150°F at 9:16 PM

C) as time passes temperature approaches the initial temperature of 450°F

Step-by-step explanation:

We are given;

Initial temperature; T_i = 450°F

Room temperature; T_r = 70°F

From Newton's law of cooling, temperature after time (t) is given as;

T(t) = T_r + (T_i - T_r)e^(-kt)

Where k is cooling rate and t is time after the initial temperature.

Now, we are told that After 5​ minutes, the temperature is 300°F.

Thus;

300 = 70 + (450 - 70)e^(-5k)

300 - 70 = 380e^(-5k)

230/380 = e^(-5k)

e^(-5k) = 0.6053

-5k = In 0.6053

-5k = -0.502

k = 0.502/5

k = 0.1004 /min

A) Thus, at temperature of 125°F, we can find the time from;

125 = 70 + (450 - 70)e^(-0.1004t)

125 - 70 = 380e^(-0.1004t)

55/380 = e^(-0.1004t)

In (55/380) = -0.1004t

-0.1004t = -1.9328

t = 1.9328/0.1018

t ≈ 19 minutes

Thus, it will get to a temperature of 125°F at 9:19 PM

B) Thus, at temperature of 150°F, we can find the time from;

150 = 70 + (450 - 70)e^(-0.1004t)

150 - 70 = 380e^(-0.1004t)

80/380 = e^(-0.1004t)

In (80/380) = -0.1004t

-0.1004t = -1.5581

t = 1.5581/0.1004

t ≈ 16 minutes.

Thus, it will get to a temperature of 150°F at 9:16 PM

C) As time passes which means as it approaches to infinity, it means that e^(-kt) gets to 1.

Thus,we have;

T(t) = T_r + (T_i - T_r)

T_r will cancel out to give;

T(t) = T_i

Thus, as time passes temperature approaches the initial temperature of 450°F

Please solve the following. Solve for X. PLEASE HELP

Answers

Answer:

8

Step-by-step explanation:

(x+4)/x=24/16

24x=16x+64

8x=64

x=8

The remaining questions refer to the following situation: Suppose a certain farmer wants to find out if the average length of the green beans in her field is 4 inches. She collects a random sample of 100 beans and get a sample mean of 3.75 inches. (Suppose she knows that the population standard deviation of bean length is 0.5.) What is the population in this situation

Answers

Answer:

The population in this situation is all green beans in her field.

Step-by-step explanation:

Informally, if you take a sample of an object, the population in all of these objects.

In this question:

Sample of 100 green beans in her field. This means that the population in this situation is all green beans in her field.

If the scale factor of Figure A to Figure B is 7:2 find the perimeter of Figure A.

Answers

Could you attach the photo

Choose all answers that apply

a. 7°
b. 45°
c. 90°
d. 210°
e. 355°
f. none of the above

Answers

Answer:

a,b,c,d and e

Step-by-step explanation:

a circle can be rotated any degree an be symmetrical therefore it has a infinite order of rotational symmetry

thus meaning that the answers are a , b , c, d and e

a pet shop sells a 6 can multipack of dog food for £3.18 and a 15 can multipack for £7.80. which multipack is the best value for money​

Answers

Answer:

the 15 multi pack

Step-by-step explanation:

It is the 15 can multipack, when you divide the cans by the price it gives you the price of one can and the 15 can multipack, one of the cans have a lower price than one of the cans from the 6 can multipack
Other Questions
Why are protists difficult classify? What is the pressure inside a balloon that contains 10.0 g of helium at 25.0C when the helium occupies a volume of 56.0 L?A 10.9 atmB 0.916 atm C 11.1 atm D 1.09 atm The diameter of a circle measures 12 cm. What is the circumference of the circle? How was the Shakya dynasty originated in Nepal? If you were to make $9.00 per hour and worked 36 hours over the past two weeks how to write a formal letter in enligh grade 12 Simplify. Write your answer in standard form.(4x^3+6x7)+(3x^35x^25x+9) Given: KW perpendicular to JO. JP perpendicular to KO. KW intersects JP=Q Prove: triangle OKW similar to triangle OJP Decide whether each statement is true or false. If a statement is true, say which of Euclids five postulates apply to it, then write the converse and contrapositive statements, and then decide which of these statements are true (it may help to rewrite the statements in if-then form). If it is false, give a counterexample or explain why.a. A triangle can be drawn from any three points that are not on the same line.b. A square can be drawn from any four points not on the same line.c. When two lines intersect, the four angles they make add to 360 degrees.d. There is only one parallel line to any given line. Lexi mailed a letter on Monday morning. The letter traveled 1/2 of a mile on Monday. Ittraveled 3/4 more of a mile on Tuesday, reaching its destination on Tuesday afternoon. Howfar did Lexi's letter travel in all? X=Y=MC scourer that would be the answer for you mam or sir Miller and Urey performed experiments to support the ____________ hypothesis. In their experiment, they combined ____________ , ammonia, hydrogen gas, and water in a closed system and ____________ it to mimic conditions on early Earth. After stimulating the system with ____________ to mimic ____________ , they discovered that ____________ were produced. This suggests that early Earth had a ____________ atmosphere, leading to redox reactions that catalyzed the ____________ synthesis of organic monomers such as ____________ . A traditional Raga piece is broken into how many sections? 1 4 6 3 10. A vehicle averages 68 km/h. How many kilometres can the car travel in 3 hours? A middle school has 200 boys and 300 girls enrolled in the seventh-grade. The principal randomly selects 45 seventh-grade students to take a lunch survey. How many of the seventh-grade students selected for the survey should the principal expect to be boys? The can below has a height of 5.5 inches and a diameter of 4.5 inches. Find the lateral and total surface area of the can. Round your answers to the nearest tenth. im to sleep deprived to think and this is my last question on a review from middle school (sad right?) lol Read this passage from "The Raven" by Edgar Allan Poe.Open here I flung the shutter, when, with many a flirt and flutter,In there stepped a stately Raven of the saintly days of yore.Not the least obeisance made he; not a minute stopped or stayed he;But, with mien of lord or lady, perched above my chamber doorPerched upon a bust of Pallas just above my chamber doorPerched, and sat, and nothing more.How does the appearance of the raven propel the narrative action of the story?It introduces a new character by which readers are able to gauge the speaker's deteriorating mental state. The appearance of the raven creates the exposition of the poem, providing readers background about the speaker.It introduces a new character who befriends the speaker and helps him search for Lenore. It suggests that the raven creates a parallel between the action of the poem and Greek mythology. One of the most powerful tools you have to create variety and to offer readers visual relief isa) pulled quote.b) infographics.c) white space.d) L-shaped layout. Which shape has a greater perimeter? If Matrix A is 3 x 4, and Matrix B is 4 x 2, what is the size of matrix BA? If BA is undefined, please state so.