Ask question

Ask question

All categories

3 years ago

6

I need help please. Thank you show your work please

2 answers:

Leni [432]3 years ago

5 0

3.5 because 5-1.5 =3.5

Effectus [21]3 years ago

4 0

Let, the number of hours, that Julia still can watch TV = x

Equation would be: 1.5 + x ≤ 5

Solving: 1.5 + x ≤ 5

Subtract 1.5 from both sides,
1.5 - 1.5 + x ≤ 5 - 1.5
x ≤ 3.5

In short, She can watch 3.5 hours at maximum

Hope this helps!

You might be interested in

Show that a = −1 + √3i and b = 2 satisfy 1/a+b=1/a + 1/b

Zarrin [17]

Answer:

LHS = $\frac{1 - \sqrt3i}{4}$ = RHS = $\frac{1 - \sqrt3i}{4}$

Step-by-step explanation:

Data provided in the question:

a = −1 + √3i and b = 2

to prove:

$\frac{1}{a+b}=\frac{1}{a} + \frac{1}{b}$

Considering the LHS

⇒ $\frac{1}{a+b}$

substituting the value of a and b, we get

⇒ $\frac{1}{−1 + \sqrt3i+2}$

or

⇒ $\frac{1}{1 + \sqrt3i}$

on multiplying and dividing by conjugate ( 1 - √3i )

we get

$\frac{1}{1 + \sqrt3i}\times\frac{1 - \sqrt3i}{1 - \sqrt3i}$

or

$\frac{1 - \sqrt3i}{(1^2 - (\sqrt3i)^2}$

or

$\frac{1 - \sqrt3i}{1 + 3}$ (as (√i)² = -1 )

or

$\frac{1 - \sqrt3i}{4}$

Now,

considering the RHS

$\frac{1}{a} + \frac{1}{b}$

substituting the value of a and b, we get

⇒ $\frac{1}{-1 + \sqrt3i} + \frac{1}{2}$

or

⇒ $\frac{2\times1 + ( -1 + \sqrt3i)\times1}{(-1 + \sqrt3i)\times2}$

or

⇒ $\frac{2 + ( -1 + \sqrt3i)}{(-1 + \sqrt3i)\times2}$

or

⇒ $\frac{1 + \sqrt3i}{(-1 + \sqrt3i)\times2}$

now,

on multiplying and dividing by conjugate ( -1 - √3i )

we get

$\frac{1 + \sqrt3i}{(−1 + \sqrt3i)\times2}\times\frac{-1 - \sqrt3i}{-1 - \sqrt3i}$

or

$\frac{1 + \sqrt3i}{(−1 + \sqrt3i)\times2}\times\frac{-1( 1 + \sqrt3i)}{-1 - \sqrt3i}$

or

$\frac{(1 + \sqrt3i}^2\times(-1){((-1)^2 - (\sqrt3i)^2)\times2}$

or

$\frac{(1^2 + (\sqrt3i)^2+2(1)(\sqrt3i)\times(-1)}{(1 + 3)\times2}$

or

$\frac{(1 - 3 + 2\sqrt3i)\times(-1)}{(4)\times2}$

or

$\frac{(-2 + 2\sqrt3i)\times(-1)}{(4)\times2}$

or

$\frac{-2( 1 - 2\sqrt3i)\times(-1)}{(4)\times2}$

or

$\frac{( 1 - 2\sqrt3i)}{(4)}$

Since, LHS = RHS

hence satisfied

3 0

3 years ago

1) Identify the slope in the equation y = 1/4 x + 2

igor_vitrenko [27]

Answer: 1/4

Step-by-step explanation:

y=mx+b

y=slope+y-intercept

mx=1/4

4 0

3 years ago

Read 2 more answers

Tell whether the statement is true or false. Tan20 degrees greater than cot20 degrees

Oxana [17]

True because tan(20)=2.1 and cot(20)=is o.44

8 0

3 years ago

Write the quadratic equation whose roots are −2 and 2, and whose leading coefficient is 3.

Elena L [17]

Answer:

$3x^2-12=0$

Step-by-step explanation:

<u>Quadratic Equation</u>

A quadratic equation also called a second-degree equation is a special polynomial whose highest degree is two.

The general form of the quadratic equation is

$ax^2+bx+c=0$

Where a is known as the leading coefficient. Another form to write the quadratic equation is

$a(x-x_1)(x-x_2)=0$

Where x1 and x2 are the roots or zeroes of the equation.

We have the roots of the given equation are -2 and 2, and the leading coefficient is 3.

Plugging in the given values we have

$3(x+2)(x-2)=0$

Operating

$3(x^2-4)=0$

$\boxed{3x^2-12=0}$

4 0

4 years ago

What is the expression 44 degrees equal to?

bekas [8.4K]

Sin44 is the same as Cos46. Hope this helped.

3 0

4 years ago

Read 2 more answers