Solve the equation for all values of x by completing the square.
x^2+4x-15=0

Answers

Answer 1

Answer:

x  =  ±  √ 19 - 2


Related Questions

4) Shruti covered a distance of 350.175 km in 7 days. How much distance did she
cover in 1 day?

Answers

Answer:

[tex]350.175 \div 7 \\ 50.025km[/tex]

Multiply. Write your answer as a fraction in simplest form.

−1(4/5)=

Answers

Answer: -4/5

Step-by-step explanation:

Any positive number/fraction multiplied by -1 will become negative

Dave drives a truck and can only drive 35 miles per day. If he drives 1,960 miles and gets paid $18 per day, how much money will he make?

Answers

Answer: $1008

Step-by-step explanation:

Since Dave can only drive 35 miles per day and he drives 1,960 miles, this means that the number of days he used for driving will be:

= 1960 / 35

= 56 days

Since he gets paid $18 per day, the amount that he will make will be:

= $18 × 56

= $1008

If xy + 12 = 6x + 7, find y if x =5.

Answers

Answer: look at the picture

Step-by-step explanation: Hope this help :D

Answer:

y=25

Step-by-step explanation:

Solve for x. x= __________

Answers

Answer:

64

Step-by-step explanation:

160 + 136 = 296

360 - 296 = 64

the answer is 64 hope this helps

Find the area of the parallelogram. base is 10 and height is 8

Answers

Answer:

80

Step-by-step explanation:

8*10

write an inequality to represent the statement band will be no longer than 45 minutes

Answers

Answer:

x ≤ 45

Step-by-step explanation:

Hi,

Since the band can reach 45 but no longer than that, we put the ≤ sign. And obviously, the x represents the number of mins.

I hope this helps :)

find the measure of each interior and exterior angles of a regular polygon with 48 sides

Answers

Answer:

172.5

may this will help you

For the princess’s wedding, the king put on a great wedding feast. He had 34 tables, each with 19 plates of ham. There were 73 tables, each with 26 plates of roast beef, and there were 104 tables, each with 27 plates of vegetables. How many plates were needed just to serve the ham, beef and vegetables?

Answers

Answer 5,352

Step-by-step explanation:

Can y’all help me ?

Answers

Answer:

-2 is 4

Step-by-step explanation:

Triangle PQR has vertices at the following coordinates: P(0, 1), Q(3, 2), and R(5, -4). Determine whether or not triangle PQR is a right triangle. Show all calculations for full credit.

Answers

Answer:

it's a right angled triangle

Enter
30
to
70 as a fully simplified ratio.

Answers

Answer:

3:7

Step-by-step explanation:

To simplify the ratio 30:70, we find the greatest common divisor of 30 and 70, and then we divide 30 and 70 by the greatest common divisor. The greatest common divisor that you can use to simplify 30:70 is 10. This means the answer to ratio 30:70 simplified is: 3:7.

Please mark me brainliest!

A ribbon of length 3meters is to be cut into strips of length 14centimeters. How many strips of lengths 14centimeters were cut? What length of ribbon remained?

Answers

Answer:

21

6 CM REMAINED

Step-by-step explanation:

Convert metre to centimetre

100 cm = 1 m

3 m = 3 x 100 = 300cm

strips cut = 300/14 = 21 would be cut with some remainders

Remainders = 300 - (14 x 21) = 6cm

HELP ME PLZZ: Francesca is making a scale drawing of the mural on a wall in her school's hallway. The mural is 12 ft high and 135 ft long. She is using a sale of 3 cm for every 4 ft. What are the dimensions of her scale drawing?

Answers

Answer:

i think ur supposed to do 135 divided by 3?

Step-by-step explanation:

tell me if im right or wrong so then i can help

The height of the mural drawing is 9 inches while the length is 101.25 inches.

What is the scale factor?

You must specify the extent of the shape's enlargement when describing one.

The scale factor is the ratio of two dimensions such that one figure is large and another is small.

The scale factor is done due to the unpractical measurement of any figure.

Hight of the mural = is 12 feet

⇒ 12 × 12 = 144 inches.

Length of mural = 135 feet

⇒ 1620 inches.

Now,

She is using 3 cm for every 4 feet(4×12 = 48 inches)

Scale factor = 3/48 = 1 : 16

Now,

Length of mural drawing = 144/16 = 9 inches.

Height of mural drawing = 1620/16 = 101.25 inches.

Hence "The height of the mural drawing is 9 inches while the length is 101.25 inches".

To learn more about scale factors,

brainly.com/question/22312172

#SPJ2

anybody know the answer to this?

Answers

It is x=-3 just use Photomath bro

what is the prime factor of 4400 by tree method

Answers

Answer:

The orange divisor(s) above are the prime factors of the number 4,400. If we put all of it together we have the factors 2 x 2 x 2 x 2 x 5 x 5 x 11 = 4,400. It can also be written in exponential form as 24 x 52 x 111.

Step-by-step explanation:

Hope that this helps! :)

Have a great rest of your day/night!

Please thank me on my profile if this answer has helped you!

Find the length of the hypotenuse.

Answers

Answer:

25

Step-by-step explanation:

c-a=b

30-16=b

900-256=644

square root=25

Line t and Δ??? and Δ??? are shown on the coordinate plane. Which statements are true? Select all that apply.

Answers

Answer:

1. True

2. True

3. True

4. False

5. True

6. False

write an equation for the graph​

Answers

Answer:

In standard form: y = 1(-2) + 2

Step-by-step explanation:

y=mx+b

m is the slope (calculate with rise over run, 2/2 is 1)

x is the x intercept (in this case -2)

b is the y intercept (in this case 2)

A salesman at a clothing store makes a sale to 30% of the customers he talks to, and wants to try out a new tecnique to see if he can change this rate. He decides to collect data for a few months on the percentage of customers he makes a sale to, and he is able to construct a 95% confidence interval of (.3095, .3275). Is there evidence at 5% significance that he has changed his average sales?

Answers

Answer:

Yes, we can conclude that average sales has changed.

Step-by-step explanation:

The null hypothesis, H0 : μ = 0.3

The alternative ; H0 : μ ≠ 0.3

The result of the 95% confidence interval of (.3095, .3275); This shows that the confidence interval is now between 30.95% and 32.75% ; since μ does not lie within the confidence interval value and the lower boundary of the confidence interval is > 30; we Can conclude with an evidence of 5% significance that his average sales as changed (increased).

We can reject H0 and conclude that μ > 0.3

What percent of students have 3 or more siblings?
(The dot plot is also included)

Answers

Answer:

5

Step-by-step explanation:

if you count all the dots above 3, 4, 5 and 10 you will gte your answer :)

Find the value of x.​

Answers

Answer:

1

Step-by-step explanation:

the correct answer would be 1

An altitude is drawn from the vertex of an isosceles triangle, forming a right angle
and two congruent triangles. As a result, the altitude cuts the base into two equal
segments. The length of the altitude is 26 inches, and the length of the base is 9
inches. Find the triangle's perimeter. Round to the nearest tenth of an inch.

Answers

Answer: 61.8

Step-by-step explanation:

Answer:

85

Step-by-step explanation:

delta math

PLZ HELP ME WITH ALL OF THESE QUESTIONS PLZ I WILL GIVE BRAINLIEST ANSWER

Answers

Answers:

    1. This question is asking for the dilation, or division of each point by a factor of 3. This is shown in the results below:

         A' = (-4/3, -2/3)

         B' = (1/3, -1)

         C' = (2/3, -5/3)

         D' = (-1/3, 7/3)

    2. This question is asking the same thing as the previous question except for new points and a new scale factor. The results are shown below:

         A' = (3, 1)

         B' = (-2, -2)

         C' = (-4, 6)

         D' = (1, -4)

    3. This question is basically asking to multiply the area of the fence by two as shown with "extend the fence's range by a scale factor of 2." The results are shown below:

        A' = (4, 6)

        B' = (-6, 4)

        C' = (4, -4)

    4. This question is asking for the ratio of each side. Moreover, this means that the same side on both triangles must equal the same ratio. This is shown below:

         75/24 = 25/8

         60/18 = 10/3

The values of 25/8 and 10/3 are not the same, meaning that the scale ratio is not the same. These two triangles are NOT similar because of this.

    5. This question is asking the same thing as question 4. The results are shown below:

          10/5 = 2

          10/5 = 2

As these values are the same, these two triangles ARE similar because of how the larger triangle is multiplied by a scale factor of 2.

If your grandmother had a cousin what would she be to you??

Answers

Answer:

Wouldn't he be like a second cousin or something?

Step-by-step explanation:

Answer:

I think she would be your second cousin.

Step-by-step explanation:

Hope this helps!!

Please mark this answer as Brainiest!!

Consider trapezoid SODA

Answers

Answer:

CPCTC

Step-by-step explanation:

If two triangles are similar, we can prove by CPCTC

what is the difference between (3.1,000) -(2.100)

Answers

Answer:

You just have to subtract the answer will equal 1

At a recent charity event there was a range of admission charges:

Family (2 Adults + 2 Children)

Adult

Senior

Child (5 to 16 years)

Child under-5

$44

$14

$12

$10

Free

In addition it was possible to buy Family tickets before the event at the reduced cost of $40 per

family.

At the gate tickets to the value of $40 000 were purchased, and prepaid tickets added a further

$10000 to the total income. For every Family ticket sold on the day, 1 Adult, 1 Senior, and 3 Child

tickets were sold and 2 under-5 children were admitted free of charge.

How many people attended?

A

B

c

4400

4600

4650

5400

Answers

Answer:

5400

Step-by-step explanation:

Given data

Family (2 Adults + 2 Children) = $44

Adult = $14

Senior = $12

Child (5 to 16 years) = $10

Child under-5 = Free

At reduced price family buys ticket at = $40

Total prepaid ticket sold = $10,000

Value of ticket sold at the gate = $40,000

Determine how many people attended

first step : determine number of family that purchased the prepaid tickets

              = 10,000 / 40 = 250 families

∴  number people who booked prepaid tickets = 250 * 4 = 1000 people

Next step : Determine the number of families that booked the ticket at the gate

let the number of families = y

40,000 = 44 y + 12y + 3y * 10 + 14y + 2y *0

40,000 = y ( 100 )  hence y = 40,000 / 100 = 400

∴ number of people = 400 * ( 4 + 1 + 1 + 3 + 2 )  = 400 * 11 = 4400

Number of people whom attended = 4400 + 1000 = 5,400

Please help! hurry, It's 8 pm and I'm tired :(

Answers

Answer:

I’m pretty sure x=6

Step-by-step explanation:

Helpppppppppppppppppppppp​

Answers

Answer:

56 degrees

Step-by-step explanation:

Hope this helps and have  wonderful day!!!

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