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3 years ago

Is 0.25 rational or irrational

Mathematics

1 answer:

love history [14]3 years ago

3 0

0.25 is rational because it is a terminating (means 'its stops') fraction.

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The area of a rectangular pool can be modeled as 5(x+7) if the area of the pool is 85 square feet, what is the value of x

Marina86 [1]

We have:

5(x + 7) = 85 |divide both sides by 5

x + 7 = 17 |subtract 7 from both sides

x = 10

7 0

3 years ago

How to graph y=7x-1 using the y

kirill [66]

Plot the y-intercept (0,-1) and then from that point go up seven and to the right one. Plot that point, then draw the line between the two points.

Hope this helped! Good luck! :)

8 0

3 years ago

3. The sum of two numbers 49. The difference of the two numbers is 15. What is the product of the two numbers?

Alborosie

Lets set the two numbers as 'a' and 'b'

Now let us set up some equations based on the information:

sum of two numbers 49 --> a + b = 49
difference of the two numbers is 15 --> a -b =15

Equations

a + b = 49 -- equation 1

a - b = 15 -- equation 2

Solve:

(equation 1) + (equation 2)

2a = 64

a = 32 -- equation 3

(equation 3)'s value of a into (equation 2)

32 - b = 15

b = 17

The products of 'a' and 'b' is 544

Hope that helps!

3 0

2 years ago

Stardust the unicorn, covered a distance of 50 miles on his first trip to the forest. On a later trip he travelled 300 miles whi

jok3333 [9.3K]

His new time compared with the old time was increased by factor of 2

<h3>Further explanation</h3>

Acceleration is rate of change of velocity.

$\large {\boxed {a = \frac{v - u}{t} } }$

$\large {\boxed {d = \frac{v + u}{2}~t } }$

<em>a = acceleration (m / s²)v = final velocity (m / s)</em>

<em>u = initial velocity (m / s)</em>

<em>t = time taken (s)</em>

<em>d = distance (m)</em>

Let us now tackle the problem!

This problem is about Kinematics.

In this problem we assume that the unicorn is moving at a constant speed so that the acceleration is zero.

<u>Given:</u>

first distance = d₁ = 50 miles

second distance = d₂ = 300 miles

v₂ = 3 v₁

<u>Unknown:</u>

t₂ : t₁ = ?

<u>Solution:</u>

To find his new time , we will use the following formula.

$v_2 = 3 v_1$

$\frac{d_2}{t_2} = 3 \times \frac{d_1}{t_1}$

$\frac{300}{t_2} = 3 \times \frac{50}{t_1}$

$\frac{300}{t_2} = \frac{150}{t_1}$

$t_2 = \frac{300}{150} \times t_1$

$\large {\boxed {t_2 = 2 \times t_1} }$

<h3>Learn more</h3>

Velocity of Runner : brainly.com/question/3813437

Kinetic Energy : brainly.com/question/692781

Acceleration : brainly.com/question/2283922

The Speed of Car : brainly.com/question/568302

<h3>Answer details</h3>

Grade: High School

Subject: Mathematics

Chapter: Kinematics

Keywords: Velocity , Driver , Car , Deceleration , Acceleration , Obstacle , Speed , Time , Rate , Sperm , Whale , Travel

8 0

3 years ago

P + 12 > 9<br> A. p > 21<br> B. p > 3<br> C. p > –21<br> D. p > –3

boyakko [2]

Answer:

D. p>-3

Step-by-step explanation:

step1

move 12 to the other side

p>9-12

when you move it changes it's sign from positive to negative

p>-3

3 0

3 years ago