select the two valuse of x that are roots of this equation. x^2+2x-5=0

Answer:

Perimeter is 12mm, height is \(2\sqrt3\)mm in simplest radical form, and 3.5mm in approximate decimal form.

Step-by-step explanation:

The perimeter is easy; since it's an equilateral triangle, all sides are the same length of 4, so you can just do 3*4 (3 sides, 4mm each) to get a perimeter of 12.

For the height, you can see that it forms two right triangles, each with a given base of 2 and a hypotenuse of 4. We can apply the pythagorean theorem (\(a^2+b^2=c^2\)) here to find the missing leg length of the smaller right triangles, which is equal to the big triangle's height.

I've enclosed an attachment for that.

Hope this helps!

Answer:

b

Step-by-step explanation:

how it works with life

Answer:

p = 12.20h

30.5 hours

Step-by-step explanation:

Jackson works as a veterinary technician and earns per hour = $12.2

He works in a normal week = 40 hours

Let hours = h and weekly pay = p

p = 12.20h

p = $12.20 × 40

= $488.00

Last week Jackson was ill and missed some work.

 His total pay before deduction was $372.10

To find the hours he work the equation will be p = 12.20h

372.10 = 12.20h

372.10/12.20 = h

h= 30.5

Answer:

3.5

Step-by-step explanation:

Well its easiest to just plug in the answers and see like 2 times 3.5 is 7.

Another way is saying 7 divided by 2 is 3.5

then u check to make sure its the same for all the numbers.

Which it is because 21 divided by 6 is also 3.5 :)

Answer:

slope is 1/2

Step-by-step explanation:

(-1 +  3) / (4-0) = 1/2

Answer:

Jayce should not use either option. Option 1 is likely to be based so that paperbacks are overrepresented, while Option 2 is likely to be biased so that e-books are overrepresented.

Step-by-step explanation:

Given:

Jayce volunteers for the local library. The librarian wants to find out whether the patrons prefer paperback books or e-books. Jayce cannot decide which method to use for polling the patrons.

Option 1: Poll every fifth patron who enters the library on Paperback Lovers Day.

Option 2: Poll every third patron who enters the library on Technology Appreciation Day.

Since, Option 1: Poll every fifth patron who enters the library on Paperback Lovers Day. It biased because since it paperback lovers day thus, it would be likely that most people like the paperback which make it biased.

Since, Option 2: Poll every third patron who enters the library on Technology Appreciation Day. It biased because since it technology appreciation day thus, it would be likely that most people don't care about these stuff since people coming in are for technology appreciation.

Therefore, the answer is:

Jayce should not use either option. Option 1 is likely to be based so that paperbacks are overrepresented, while Option 2 is likely to be biased so that e-books are overrepresented.

Kavinsky

Answer:

9% of the 100 were best-sellers

Step-by-step explanation:

there are 100 books, and 9 of them were best sellers, to put this in a percentage we can do (9/100)*100 which gives us 9, we slap a % on it and get 9%

Answer:

A= 2.48

B=0.84

C=4.5

D=15.3

This is a system of three equations with two unknowns, x and y. To solve it, we can use the method of elimination. First, we can eliminate y by subtracting the first equation from the second equation:

x^2-2y=3 - (x-2y=3) => x^2-x=0

Then we can factor the resulting equation and find the values of x:

x^2-x=0 => x(x-1)=0 => x=0 or x=1

Next, we can substitute these values of x into any of the original equations and find the corresponding values of y. For example, using the first equation:

x-2y=3 => 0-2y=3 => y=-3/2 when x=0 x-2y=3 => 1-2y=3 => y=-1 when x=1

Finally, we can substitute these values of x and y into the expression x2y-2xy2 and evaluate it:

x2y-2xy2 => 02(-3/2)-2(0)(-3/2)2 => 0 when x=0 and y=-3/2 x2y-2xy2 => 12(-1)-2(1)(-1)2 => -3 when x=1 and y=-1

Therefore, the value of x2y-2xy2 can be either 0 or -3 depending on the values of x and y.

Answer:

1. < 2. > 3. >

4. < 5. > 6. <

7. < 8. > 9. =

10. > 11. < 12. >

sorry if any of them are wrong

Answers:

1. >

2. >

3. >

4. <

5. <

6. <

7. <

8. >

9. <

10. >

11. <

Answer:

The chances of choosing an apple are 8/24 = 1/3

The chances of choosing an pear are 3/24 = 1/8

Step-by-step explanation:

Answer:

Step-by-step explanation:There are 152 apples.

The explanation is shown below:

- You need to write the following three equations, where is the the number of apples, is the number of pears and is the number of oranges:

1)

2)

3)

- You must substitute the equation 3) into the equation 2):

- Now, you need to solve for in the equation 1) and then you must substitute it into :

- Solve for , as following:

- Therefore, there are 152 apples.

Answer:C

Step-by-step explanation:

Answer: The answer is false!

Step-by-step explanation: You may think its true but NO, its not true!

Answer: false

Step-by-step explanation:

the correct answer is a dialect of spanish, chilean spanish.

C.

It is used in the process of respiration.

Hope this help! DON'T FORGET TO MARK ME BRAINLIEST

Answer:

D

Step-by-step explanation:

I looked this up so I'm pretty sure this is correct however it still could be wrong. From my newfound understanding, the water is absorbed and goes up the xylem where most of it goes to the plant and only a small bit is left for the plant to grow

plants need sunlight to make their own food as we've been taught for years. many plants will actually grow toward sunlight. If they're saving that water to grow, they might as well grow toward the sunlight.

that's my explanation and my train of thought. I hope this helped!

Answer:

$45.75

Step-by-step explanation:

1. Set up the equation: 40.75 + 2.25 - 1.75 - 0.25 + 3 + 1.75 = x

You want to include the amount that she started with which is $40.75 . In this case x is the total amount of money that Samantha has by the end of the week. If Samantha loses money on a certain day you will subtract it, whereas if she gains money you will add it.

2.Simplify: 43 - 1.75 - 0.25 + 3 + 1.75 = x

I just added the 1st two numbers. You can just type this into the calculator if you are comfortable with that or you can solve this by adding and subtracting the numbers on a piece of scratch paper.

3. Simplify: 41.25 - 0.25 + 3 + 1.75 = x

4. Simplify: 41 + 3 + 1.75 = x

5. Simplify: 44 + 1.75 = x

6. Simplify: 45.75 = x

Answer:

6

Step-by-step explanation:

The answer Is 6

Answer:

9

Step-by-step explanation:

We can make an equation out of this

So if he has 27 blankets, and 18 flashlights, he will need to divide evenly amongst the kits.
The equation would be

z=x+y, where x is the amount of blankets, and y is the amount of flashlights.

to find this, we need to find what 27 is divisible by, and what 18 is divisible by.

27 - 27, 9 , 3, 1

18 - 18, 9, 6, 2, 3, 1

Now, 18 and 27 are both divisible by 9

18/9=2

27/9=3

So we can make a total of 9 emergency kits, with each kit having 3 blankets and 2 flashlights

Hope this helps!!^^

When answer choices are in different measurements

Answer:

2) 62.5 wpm

3) 12.7 miles per gallon

4)18 commercials per hour

5) 22.9 ounces per dollar

Step-by-step explanation:

2) 500 words / 8 minutes = 62.5 words per 1 minute

3)  216 miles / 17 gallons = 12.7 miles per gallon

4) 36 commercials / 2 hours = 18 commercials per hour

5) 64 oz / $2.79 = 22.9 oz per $1

Large Polygon 14 x21= 294

Little Polygon 2x(2x2) =8

294-8=286

you have to find the scale factor by its length

how to : scale factor = dimension of the new shape ÷ dimension of the original shape

but if it is scaled then do

scale factor = larger figure dimensions ÷ smaller figure dimensions

Answer:
N is just simply 18

so 6*8-(34-18) and use pemdas to solve

34-18=16

6*8-16

48-16

32

so the value is 32

The value of the expression for m = 6 and n = 18 is 16,79,600.

Given is the expression as -

m⁸ - (34 - n)

The expression given is -

m⁸ - (34 - n)

Now, for m = 6 and n = 18, we can write -

6⁸ - 34 + 18

6⁸ - 16

(6 x 6) x (6 x 6) x (6 x 6) x (6 x 6) - (16)

36 x 36 x 36 x 36 - 16

16,79,616 - 16

16,79,600

Therefore, the value of the expression for m = 6 and n = 18 is 16,79,600.

To solve more questions on algebraic expressions, visit the link below -

brainly.com/question/1041084

#SPJ2

Answer:

Step-by-step explanation:

Answer:

https://www.chino.k12.ca.us/cms/lib/CA01902308/Centricity/Domain/4926/12-5_Volumes_of_Pyramids_and_Cones.pdf

Step-by-step explanation:

Answer:

wha

Step-by-step explanation:

Answer: 1100

Step-by-step explanation:

Answer:

7th grade should be awarded !

Step-by-step explanation: hope this helps i had a question just like this not to long ago <3

Answer:

7th grade!!

Step-by-step explanation:

i got this exact question before!

Answer:

the answer is 6 because when x=7 on the line it is also equal to 6 on the y axis