Which of the following statements is true?
a. All integers are rational numbers
b. All positive numbers are rational numbers
c. All square roots are irrational numbers
d. All of these statements are true

Answer:

D is the answer  (4x - 1)(4x + 1)

Please mark as brainliest

Have a great day, be safe and healthy

Thank u  

XD

Answer:

7/10

Step-by-step explana

7/10 was the answer

Answer:

7/10

Step-by-step explanation:

Answer:

Time taken by the ball to reach the maximum height = 5/32 seconds

Step-by-step explanation:

To find the time at which maximum height is reached , we will differentiate the given equation  with respect to t

[tex]\frac{db_{(t)}}{dt} = -32t + 5 = 0\\t = \frac{5}{32} \\[/tex]

Substituting this value of t in formula of b(t), we get

[tex]-16 * (\frac{5}{32})^2 + 5 * \frac{5}{32} + 15 \\= 15.390[/tex]

Answer:

The answer is A.

Step-by-step explanation:

First, you look at the longest time which is 7/8. Next, you look at the shortest time which is 1/8. You take 1/8 from 7/8 which is 6/8 which is A.

Answer:

positive its 18 feet

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

Answer: 25%

Step-by-step explanation: Sorry this is late

Answer:

8.2FT

Step-by-step explanation:

Answer:

The answers 8.2!!

Step-by-step explanation:

I just guessed on the usatestprep and got it lol

Answer:

polygons

Step-by-step explanation:

this is a hexagon so the sum of interior angles is 720. so add all of those angles and expressions and set it equal to 720. collect like terms and solve for x

once you have x, evaluate and get the exact angle measurements.

Answer:

- 14/5

Step-by-step explanation:

4/5+x=-2

.......

Answer:

you just need to let x for unknown quantity then solve the equation, it is easy u need to be practical. solution is below:

Step-by-step explanation:

4/5+x=-2

4+5x/5=-2

5x=-14

x=-14/5

x=-2.8

Answer:

Step-by-step explanation:

This actually happened to me. I was walking out of a national forest and came up to a stream that I had not crossed. I got my bearings confused and realized I was lost.  I knew that if I went Northwest it would be about a 30 mile hike out in heavy woods, with obvious other streams to cross. In the Southeast direction, it would only be about 5 miles.

The sun was out but mostly overhead and no help with directions.

I couldn't wait until the sun went farther West to get my directions. It was a warm Winter day but I wasn't dressed to be there after dark when the temperature fell, even if I did go in the correct direction.

I stuck a stick in the ground and made a mark in the dirt at the end of it's shadow. I sat down for about 15 minutes, then made a new mark in the dirt at the end of the sticks shadow again. I drew a line in the dirt to connect the two marks. This line ran close to the East/West direction, the first mark being the West direction.

I made it out about 5 PM just as the sun was disappearing through the trees.

Answer:

A. 42 cm²

Step-by-step explanation:

Rectangle Area: lw

Put the measurements into the expression

(7)(5)

7•5 = 35

Triangle Area: 1/2bh

1/2(7)(2)

1/2(14)

7

Add them together: 35 + 7 = 42 cm²

Answer: For each they would be -8 and -2/3, but together it would be 16/3

Step-by-step explanation:

Answer:

1.) a= √50

2.) a = (10√3)/3

3.) a = 6

4.) a =√5

5.) a = (3√2)/2

6.) a =2

7.) a=12

8.) a= 3√3

9.) a= 6√2

10.) a= 2√3

11.) a= 2√2

12.) a=8

Step-by-step explanation:

30-60-90 triangles

hypotenuse = 2(short leg)

short leg = 1/2(hypotenuse)

long leg = short leg(√3)

short leg = long leg/√3

45-45-90 triangles

hypotneuse = leg(√2)

Answer:

give this man braniliest! he is actually being ur personal tutor

Step-by-step explanation:

Answer:

(39 x 2) + 3 = 81

Step-by-step explanation:

You can use math by multiplying 39 by 2 then adding 3 to get 81.

Answer:

Because the slope is going up and not down?

Step-by-step explanation:

Answer:

because the y -values is nonnegative so the x-values are the opposite of the y-values

Answer:

1

Step-by-step explanation:

Given the system of equations below

y=2x+5

y=x+6

Equating the right hand side of the expressions we will have;

2x+5 = x+6

Collect the like terms;

2x - x = 6 - 5

x = 1

Hence the x-coordinate of the solution to the system is 1

[tex]11+r =7[/tex]

r=-4

Answer:

these both are ture

Step-by-step explanation:

Answer:

9t + 3s = 420

t + 6s = 296

s =44; t = 32

Step-by-step explanation:

Let

Price of a T-shirt = t

Price of a sweatshirt = s

Jayden:

9t + 3s = 420

Carson:

t + 6s = 296

9t + 3s = 420 (1)

t + 6s = 296 (2)

From (2)

t =296 - 6s

Substitute t =296 - 6s into (1)

9t + 3s = 420 (1)

9(296 - 6s) + 3s = 420

2664 - 54s + 3s = 420

2,664 - 51s = 420

-51s = 420 - 2,664

-51s = -2,244

s = 44

Substitute s = 44 into (2)

t + 6s = 296

t + 6(44) = 296

t + 264 = 296

t = 296 - 264

t = 32

s =44; t = 32

Answer:

70

Step-by-step explanation: Triangle angle sum theorem states the interior angles of a triangle sum to 180 degrees. We know one angle is 40 degrees and the two remaining angles are equal in measure.

Since angle J and angle L are equal in measure we can substitute 2x for angles J and L into the equation.

40 + 2x = 180. Subtract 40 from both sides.

2x = 140. Divide both sides by 2.

X = 70

2x-3y=-5

2x−3y+8=0

⇒−3y=−2x−8

⇒3y=2x+8

⇒y=  

3

2

​  

x+  

3

8

​ That's how I knew it

hopes  it helps you

And

your welcomeee

<<<::