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3 years ago

A line is drawn on a coordinate grid by the equation y = 4. Which of the following lines would represent a row parallel to it?

Mathematics

2 answers:

dedylja [7]3 years ago

8 0

Y = and then any number you want to put there

S_A_V [24]3 years ago

6 0

Answer:

y= anything other than four

Step-by-step explanation:

On a graph, you need to have a line that will never touch that line ever. If y=4, the answer can be anything other than 4

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Solve the system of equations.

REY [17]

Answer:

Step-by-step explanation: Time Stamp (6 9 10 32)

Easiest way is to graph both equation and look for the intersections see attached sreen shot

or solve by substitution

y = 2x

y = x²- 8

2x = x²- 8 solve for x

0 = x² - 2x - 8 factor

0 = (x - 4)(x + 2)

0 = 0 when x = 4 and -2

calculate the y values

y = 2x x = 4

y = 8 (4, 8)

y = 2x x = -2

y = -4 (-2, -4)

5 0

3 years ago

Roma selects cards from a standard of 52 cards. Once a card is selected, it is not replaced. Find the probability of each outcom

meriva

Given:

A card is selected randomly from a standard deck of 52 cards.

To find:

The probability of each outcome.

a. a king of heart

b. a queen of spades

c. an ace of flower

d. an ace of diamond

Solution:

In a standard deck of 52 cards.

Total number of cards = 52

13 cards of each suit (heart, diamond, club, spade).

13 cards are Ace, 2, 3, 4, 5, 6, 7, 8, 9, 10, Jack, Queen, King.

a. We need to find the probability of getting a king of heart.

Number of king of heart = 1

$P(\text{a king of heart})=\dfrac{\text{Number of king of heart}}{\text{Total cards}}$

$P(\text{a king of heart})=\dfrac{1}{52}$

b. We need to find the probability of getting a queen of spades.

Number of queen of spades = 1

$P(\text{a queen of spades})=\dfrac{\text{Number of queen of spades}}{\text{Total cards}}$

$P(\text{a queen of spades})=\dfrac{1}{52}$

c. We need to find the probability of getting an ace of flower (spades).

Number of ace of flower = 1

$P(\text{an ace of flower})=\dfrac{\text{Number of ace of flower}}{\text{Total cards}}$

$P(\text{an ace of flower})=\dfrac{1}{52}$

d. We need to find the probability of getting an ace of diamond.

Number of ace of diamond = 1

$P(\text{an ace of diamond})=\dfrac{\text{Number of ace of diamond}}{\text{Total cards}}$

$P(\text{an ace of diamond})=\dfrac{1}{52}$

Therefore, the required probabilities for each parts are:

(a) $\dfrac{1}{52}$

(b) $\dfrac{1}{52}$

(c) $\dfrac{1}{52}$

(d) $\dfrac{1}{52}$

4 0

3 years ago

(URGENT) NEED THE ANSWER FOR TODAY

Alexandra [31]

Given:

Given that a triangle has side lengths 1.5 inches, 2 inches and 3 inches.

We need to determine whether the triangle is a right triangle.

Right triangle:

To determine whether the given triangle is a right triangle, let us use the Pythagorean theorem.

Since, the value of the hypotenuse takes the largest value in the given triangle, then from the given sides, the hypotenuse is 3 inches.

The legs of the triangle are 1.5 inches and 2 inches.

Applying the Pythagorean theorem, we have;

$3^2=1.5^2+2^2$

Squaring the terms, we have;

$9=2.25+4$

$9 \neq 6.25$

Since, both sides of the equation are not equal, then the given triangle with sides 1.5 inches, 2 inches and 3 inches is not a right triangle.

7 0

3 years ago

Need help! 20 points! No links please

denis-greek [22]

Answer:

480 in3

Step-by-step explanation:

So the first thing I looked at was how to find the volume of a 3-dimensional square. Why do we have to do this? Well, we can see that the shape is made up of 3 different types of 3-dimensional cubes so to find the answer all we have to do is figure out the volume for each separate cube and add them all together.

So, to find the volume of a cube we have to multiply the area (length x width) by the height of each cube.

Let's start with the largest cube so we would multiply 5 x 12 x 4 which equals v = 240

Now let us do the second to largest by multiplying 8 x 5 x 4 = which equals v = 160

Finally, on to the smallest cube, 4 x 4 x 5 =

v = 80

So now if we add 240 + 160 + 80 that will give us 480

So the answer is 480 in3

Hope this is correct I was a little confused while I was figuring it out :0 Sorry if it is wrong :(

6 0

3 years ago

Peppy Pets charges a flat fee of $15 plus $3 per hour to keep a dog during the day. Happy Hounds charges a flat fee of $21 plus

stich3 [128]

Answer: d) 3 hours.

Step-by-step explanation:

Let x be the required number of hours for which the total fee charged by the companies the same.

Given: Peppy Pets charges a flat fee of $15 plus $3 per hour .

So Total charge = 15+3x ( in dollars)

Happy Hounds charges a flat fee of $21 plus $1 per hour.

So Total charge = 21+x ( in dollars)

When the total charge for both companies are the same, then

$15+3x=21+x\\\\\Rightarrow\ 3x-x=21-15\\\\\Rightarrow\ 2x=6\\\\\Rightarrow\ x=3$

Hence, the correct option is d) 3 hours.

7 0

3 years ago