Which are the solutions of x2 = -5x + 8?

Answers

Answer 1

Answer:

x=

2

−5−

57

=−6.275

x=

2

−5+

57

=1.275

Step-by-step explanation:


Related Questions

Misaki cut some wood for a bookcase she is building.She needs to find how many 13 ft boards she can make from a 5 ft board.Explain how to model with fraction bars to solve the problem.

Answers

Complete question :

Misaki cut some wood for a bookcase she is building.She needs to find how many 1/3 ft boards she can make from a 5 ft board.Explain how to model with fraction bars to solve the problem

Answer:

15

Step-by-step explanation:

Total Size of board = 5 feets

Size of board to be made = 1/3 feets

Number of 1/3 feets board to be made from 5 feets board :

Total size of board / size of board to be made

5 feets ÷ 1/3 feets

5 feets * 3 / 1 feets

= 15

Hence, number of 1/3 feets board that can be made from 5 feets board = 15

A snowbank that is 6 inches deep is melting at a rate of 0.5 inch per hour. Write a linear function to model the scenario and identify the domain and range of the function.

Answers

Answer:

y = -0.5x + 6, Domain [0,12] and Range [0, 6]

Step-by-step explanation:

The slope in a linear function represents the rate of change. Since the amount of snow is decreasing (indicating a negative slope) at 0.5 inches an hour, our slope would be -0.5.

Our y intercept, 6, would be the starting amount of snow. At 0 hours, no snow has been melted.

Our domain is [0,12] these are the x values from where at zero there is 6 inches of snow and at 12 there is 0 inches of snow.

Finally, our range is [0,6]. Since there cannot be no more than 6 or less than 0 inches of snow, our range is [0,6]

Hope this helped!

express 50 1/4 in simplest radical form

Answers

Answer:

Step-by-step explanation:

This is just an improper fraction when done.

numerator: 50*4 + 1 = 200 + 1 = 201

denominator: 4

Answer: 201/4

Ignore the 1 and the 2. That’s just where you put your answer.

Answers

Answer:

4500000

40

Step-by-step explanation:

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In the equation, we are told that d(t) = 300,000t, where t is the time in seconds and d(t) is the distance in kilometers.

1. In this part of the question, it asks for the distance after 15 seconds. To solve we plug 15 in for t.

d(t) = 300,000(15)

d(t) =  4500000  kilometers

2. In this part of the question, it is asking for time after going 12,000,000 kilometers (twelve million). To solve, we solve for t by dividing 300,000.

12,000,000 = 300,000(t)

40 = t

*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^

#teamtrees #WAP (Water And Plant)

Which ordered pair is a solution of this
equation?
3x - 7y = 28

Answers

Answer:

(0,-4)

Step-by-step explanation:

I plugged in 0 for x.

3(0)-7y=28

-7y=28

y=-4

Find the limit !!!!!!

Answers

Answer:

1/8.

Step-by-step explanation:

Use l'Hopitals rule - we find the derivative of top and bottom of the fraction.

Derivative of the numerator = 0 - 1/2 (16 - x)^-1/2  -1

=  1 / [ 2 * (16 - x)^1/2

Derivative of the denominator =  1

When x approaches 0 this is 1 / (2*4)

= 1/8.

Another way to do this is to multiply top and bottom by  4 + (16 - x)^1/2

This  becomes   16 - (16 - x) / x(4 + (16-x)^1/2)

= 1 / (4 + (16 + x)^1/2

When x ---> 0

this = 1 /(4 + 4)

= 1/8.

What is the value of n of this data? Type a numerical answer in the space provided. Do not type spaces or decimals in your answer.
3, 12, 15, 25, 30, 40

Answers

Answer:

The value of n for this data is 6

Step-by-step explanation:

The given data is:

3, 12, 15, 25, 30, 40

In a set of given data, n is used to represent the number of values in a dataset. The values are also called observations. Hence, the total number of observations in a dataset are denoted by n.

In the given dataset, total values are 6.

So,

n = 6

Hence,

The value of n for this data is 6

me need help. xjjd j dsj​

Answers

i think it is 4.66? 14/3=4.66

Answer:

$4.67

Step-by-step explanation:

John + 2 friends = 3

Total cost = $14

$14/3 = $4.6666

$4.6666 ---> $4.67

Consider Brainliest! Hope I helped!

A group of friends eat at​ Jae's cafe. They have an online coupon. The costs of their main​ courses, before applying the​ coupon, are​ $13.99, $16.99,​ $19.99, and​ $21.99. The total cost of their drinks is​ $12.00. What will their bill be before tax and​ tip?

Answers

Bill before tax and tip will be generated by the original prices of main courses . The total bill is of $84.96

Given, prices of main course at cafe .

The total bill without applying the coupon for that we simply need to add respective costs of main course and drinks bill.

Just adding all the costs to find the bill:

= $(13.99 + 16.99 + 19.99 + 21.99 + 12)

=$84.96

Now since the question asks not to apply coupon and tip so the bill will remain as it is .

Know more about discount,

https://brainly.com/question/20885539

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what's the slope intercept form​

Answers

y=-1/4x+3 should be the correct answer

Nothing but slope.................

Answers

Answer:

1. 1

2. 3

3. 4

Step-by-step explanation:

is the point (20,13) on this line?

Answers

Answer:

yes

Step-by-step explanation:

the graph needs to be shown for us to answer it.

Step-by-step explanation:

True or false, the following two triangles are congruent by HL.

A.) False
B.) True

Answers

The answer is for this question is true

AABC is an isosceles triangle with vertex angle B, AB = 2x + 10, AC = 2x,
and BC = 4x - 16. Determine the length of the base of the triangle.

Answers are
A.117 degrees
B.26 degrees
C.15 degrees
D.22 degrees

Answers

Answer:

AC = 26 units

Step-by-step explanation:

Given that,

ABC is an isosceles triangle with vertex angle B such that,

AB = 2x + 10, AC = 2x,  and BC = 4x - 16

Two sides of an isosceles triangle are equal. It means that the angles corresponding to the same sides are equal. It means AB = BC

2x + 10 = 4x - 16

2x-4x = -10-16

-2x = -26

x = 13

AC is the base of the traingle.

AC = 2x

AC = 2(13)

AC = 26 units

So, the base of the triangle is equal to 26 units.

Triangle FED is the image of triangle ABC. Angle A corresponds with which angle?
A) D
B) E
C) F
D) none of the above

Answers

Answer:

C) F

Step-by-step explanation:

If you flip triangle ABC across the y-axis and slide it over top of triangle FED then you can see that angle A corresponds with angle F.

The answer would be F

I attached a file pls answer quick i gotta sleep

Answers

Answer:

P(2, 3.5)

Step-by-step explanation:

If P partitions AB in the ratio 1:1, then P is the midpoint of AB

Using midpoint formula to find its coordinates

A = (1, 2), B = (3, 5) as per graph

Finding P:

P = ((1+3)/2, (2+5)/2) = (2, 3.5)

i’ll mark brainliest i guess

Answers

Answer:

c

Step-by-step explanation:

21.35/7 is 3.05 and that is gas station a which is cheaper than 3.08

According to the table, during which interval did the average time spent on hold increase?
O week 1 to week 3
O week 1 to week 4
O week 4 to week 6
week 3 to week 5

Answers

Answer:

d

Step-by-step explanation:

took the quiz

SHOW WORK PLEASE!!!!!!!!!!!!!!!!!

Answers

Answer:

Step-by-step explanation:

add hen sub ten bom anwwer

The owner of a used car lot wants to buy as many cars at an auction as he can while not spending more than $20,000. if he expects the average price to be $4000, how many would he expect to be able to buy?

Answers

Answer:

5 cars

Step-by-step explanation:

If the average of cost of a car is $4,000 there will be enough cash to buy 5 cars. 20,000 divided by 4,000= 5.

An electrician charges $45 per hour plus a fixed charge of $30. Which of these equations could be used to determine C , the cost an electrician charges for h hours worked?

Answers

C= 45h+30

That’s the equation.

Karsyn went to the movies with her boyfriend Chandler. The movie cost them $25. Karsyn was really hungry because Chandler did not take her out to dinner. She made him buy her snacks for 4.00 each. How many snacks did Chandler have to buy Karsyn, if he spent $44 on their date.

Identify the variable:

Write the equation:

How many snacks did Karsyn eat?

Answers

Answer:

4 snacks

Step-by-step explanation:

44 from the overall date - 25 from the movie = 19 dollars. 19 divided by four is 4.75. I'm not sure if this is a real question and you can have a decimal of a snack but you can just write approximately four snacks.

Solve: -6y+2(y-6)=12

Answers

answer: = -6 mark me brainly

Answer:

Step-by-step explanation:

distribute

=

6

Lee is selling spirit wear for a fundraiser hats cost $8 and shirts $12 lee sold $272 worth of spirit wear in the first month. If lee sold a total of 28 items how many hats did Lee sell

Answers

16*8=128
12*12=144

128
+ 144
$272

Lee sold 16 hats

Lee sold 16 hats.

What is Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides. LHS = RHS is a common mathematical formula.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given:

Cost of 1 hat= $8

Cost of shirt = $12

Total cost of spirit wear= $272

let the number of hats sold be x

and, let the number of shirts sold be y

So, 8x+ 12y= 272

and, x+ y= 28

Solving the above equations we get

8(28- y) + 12y= 272

224 - 8y + 12y = 272

4y = 48

y = 12

and x= 28- 12 = 16

Hence, Lee sold 16 hats.

Learn more about equation here:

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Helps me solve this problem please

Answers

Answer:

The slope is -3/7 so B

Step-by-step explanation:

Just turn this into slope-intercept form.

what you do is subtract 3x so that it's moved to the right side.

It should look like this -7y = 12 - 3x

Then just divide all numbers by 7 so everything is simplified

It should look like this y = -3/7x - 12/7

pls mark brainliest because i didn't waste you time lol

Solving Multi-Step
1. List the steps in order) require
3(z + 5) = 12
I
a)

Answers

Answer:

z = -1

Step-by-step explanation:

3(z + 5) = 12

Step 1: Divide both sides by 3.

z + 5 = 4

Step 2: Subtract 5 from both sides.

z = -1

z = -1

Explanation:

12 / 3 = 4

-1 + 5 = 4

Which list contains three multiples of 6?
A.
12, 16, 24
B.
18, 24, 36
C.
16, 26, 36
D.
60, 66, 69

Answers

Answer:

Step-by-step explanation:

Since 18,24,36 all three are divided by 6

So option B is the correct option

Answer please
please please please

Answers

Answer:

3.25

Step-by-step explanation

Answer: 3.25

Step-by-step explanation:

Write a function rule that represents the sentence.
y is 4 less than the product of 7 and x.

Answers

Answer:

y = 7x - 4

just as it says in words

Madison walks 0.2 miles on each trip to the ball park.
How far will she walk on 4 trips?

Answers

Answer:

0.8 miles

Step-by-step explanation:

0.2 x 4 = 0.8

Multiply 0.2*4 that will give you have far she walk in 4 trips :)
0.2*4=0.8
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