All categories

3 years ago

I need help on this cause I got the last one wrong..

Mathematics

1 answer:

mihalych1998 [28]3 years ago

5 0

Answer:

"All integers are irrational numbers" False

"No whole numbers are irrational numbers" True

"Some rational numbers are not integers" True

"Some integers are not whole numbers" True

Step-by-step explanation:

I'm 100% sure of this.

You might be interested in

What is 7% of 3.1 trillion

Vlada [557]

The answer is 217000000000

3 0

3 years ago

Read 2 more answers

Evaluate the expression

Natalka [10]

Answer: -5

Step-by-step explanation:

Multilpy $\frac{1}{4}$ x (-5 + 5 x (3)

Calculate $\frac{1}{4}$ x (-5 - 15)

- $\frac{1}{4}$ x 20

= -5

6 0

3 years ago

Read 2 more answers

If a ball is thrown into the air with a velocity of 34 ft/s, its height (in feet) after t seconds is given by y = 34t − 16t2. Fi

Finger [1]

ANSWER:

If a ball is thrown into the air with a velocity of 34 feet per second, then velocity of the ball after 1 second is 2 feet per second

SOLUTION:

Given, a ball is thrown into the air with a velocity of 34 feet per second

Initial velocity (u) = 34 feet per second

And also given a relation between displacement and time = $\mathrm{y}=34 \mathrm{t}-16 \mathrm{t}^{2}$ --- eqn 1

We need to find the velocity when t = 1 ; v = ?

We know that, v = u + at and $\mathrm{s}=\mathrm{ut}+\frac{1}{2} \mathrm{at}^{2}$

where v is instantaneous velocity and u is initial velocity

a is acceleration

t is time interval

s is displacement

using the displacement and time relation eqn (1) we get

Now, when t = 1, displacement s = 34(1) – 16(1)

$\mathrm{ut}+\frac{1}{2} \mathrm{at}^{2}=34-16$

$34 \times 1+\frac{1}{2} \times a \times 1^{2}=18$

$34+\frac{a}{2}=18$

$\begin{array}{l}{\frac{a}{2}=18-34} \\\\ {\frac{a}{2}=-16} \\ {a=-16 \times 2} \\ {a=-32}\end{array}$

here, -ve sign indicates that object is in deceleration . so acceleration is -32 ft/s

now put a value in v = u + at

v = 34 + (-32)(1)

v = 34 – 32

v = 2 ft/s

Hence, velocity of the ball after 1 second is 2 ft/s

6 0

3 years ago

Solve for P P/15=20/25

drek231 [11]

Answer:

p=12

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Find the solution to the system of equations x + y = 9 and x - y = -1.

Galina-37 [17]

Answer:

(4, 5 )

Step-by-step explanation:

x + y = 9 → (1)

x - y = - 1 → (2)

adding the 2 equations term by term will eliminate y

2x + 0 = 8

2x = 8 ( divide both sides by 2 )

x = 4

substitute x = 4 into either of the 2 equations and solve for y

substituting into (1)

4 + y = 9 ( subtract 4 from both sides )

y = 5

solution is (4, 5 )

6 0

2 years ago

Read 2 more answers