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3 years ago

What is the domain of √x + 4

Mathematics

1 answer:

mart [117]3 years ago

7 0

Step-by-step explanation:

Set the radicand in √x−4 greater than or equal to 0 to find where the expression is defined. Add 4 to both sides of the inequality. The domain is all values of x that make the expression defined. The range of an even indexed radical starts at its starting point (4,0) and extends to infinity

hopes it helps

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How Can associative Property be used to mentally find 48+82?

Marizza181 [45]

Associative property of addition represents this equation:
a + b = b + a
So, how would it be helpful with this given equation?
=> 48 + 82
=> Let's start with the ones place value.
(2 + 8) = 10, bring down 0, carry 1 then ( 4 + 8) = 12 + 1 = 13
So the answer is 130.
If we are going to do it vice versa, still expect that the same answer will occur.

6 0

3 years ago

X-intercept and y-intercepts og y=x^2-3

Rufina [12.5K]

Answer:

Part 1) The y-intercept is the point $(0,-3)$

Part 2) The x-intercepts are the points $(-\sqrt{3},0)\ and\ (\sqrt{3},0)$

Step-by-step explanation:

we have

$y=x^{2}-3$

This is a vertical parabola open upward

step 1

Find the y-intercept

we know that

The y-intercept is the value of y when the value of x is equal to zero

For x=0

$y=(0)^{2}-3$

$y=-3$

The y-intercept is the point (0,-3)

step 2

Find the x-intercepts

we know that

The x-intercept is the value of x when the value of y is equal to zero

For y=0

$x^{2}-3=0$

solve for x

Adds 3 both sides

$x^{2}-3+3=0+3$

$x^{2}=3$

take square root both sides

$x=(+/-)\sqrt{3}$

The x-intercepts are the points $(-\sqrt{3},0)\ and\ (\sqrt{3},0)$

3 0

2 years ago

Pls Answer..........................................

Vlad1618 [11]

Answer:

C= 27

G= 37

J=57

Z= 1

Step-by-step explanation:

These are the degrees because of the Triangle Sum Theorem which states that The sum of the measures of the angles in a triangle is 180°. So angle C for example is 27 because angle A is 53 and angle B is 100 add both of those and you get 153 so our equation would be 153+c=180, c being the angle, so then to solve this you do do 180-153 and that equals 27 so therefore, 153+27=180. This process applys to all the other angles as well ^w^

3 0

3 years ago

1. A construction company is planning to bid on a building contract. The

levacccp [35]

<u>Answer:</u>

The expected value of construction company is $30500.

<u>Solution:</u>

Given, A construction company is planning to bid on a building contract.

The bid costs $1,500 and has an 80% chance of being accepted.

If accepted, the company will receive $40,000 dollars.

We have to find the expected value.

We know that,

Expected value = probability $\times$ amount gained by bidding – bid amount

Expected value = 80% x 40000 – 1500

Expected value = 0.8 x 40000 – 1500

Expected value = 32000 – 1500

Expected value = 30500

Hence, the expected value is $30500.

8 0

3 years ago

SOMEONE PLEASE HELP ME!!!!!!!!!!!!!!!111

Naddika [18.5K]

it's should be 220 because your starting point is at 70 then add 15 for 10 weeks which means you have to add 15*10 or 150 to 70 which will give you 220

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3 years ago