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Mars2501 [29]
3 years ago
7

1. 56 + (-56)2. -240 + 3703.-5.7+(-4.2)4.-15+(-8)​

Mathematics
1 answer:
Snezhnost [94]3 years ago
5 0

Answer:

1.) 0

2.) 130

3.) -9.9

4.) -23

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The square of the sum of x and -3 is equal to y how can turn this problem into a numbers
ollegr [7]
The equation:

x2 - 3 = y
3 0
3 years ago
Tom can paint a house in 10 hours. If Sally helps, it takes them 4 hours. Without help, how long would it take Sally to paint a
Romashka-Z-Leto [24]
To determine the number of hours it takes for sally to paint one house, we use relations from the problem statement above. We use the concept of rates and ratios. For Tom, he would take 10 hrs to finish one house. So, we assign his rate as 1/10. For Sally, she would take x hours to finish one house. So, we assign 1/x. When both of them works, it would take only 4 hours. So, we write the rate as 1/4. It should be that the sum of the individual rates is equal to the rate when both are working.

1/10 + 1/x = 1/4

Solve for x,
x = 6.67 hours
5 0
4 years ago
NEED IT FAST PLEASE Which is the graph of the linear equation x – 2y = 6? On a coordinate plane, a line goes through points (neg
koban [17]

Y= (x-6)/2. Plug that for of first equation into;

Answer:

Math is fun dot com. All one word. (With .)

For other straight lines, I’m assuming you are supposed to graph the intersections, just use the two point form to get the rise and run. The rise / run is the slope. Usually called ‘m’ in formula form. Plug each Straight line formula into the Same web page above and it will graph the line for you. Be sure each line is in the [Y = mX+b ]

Format. Y is the up, X is the over, m is the slope. (Change in Y divided by change in X) (like stairs), and ‘b’ is the Y intercept. That means where the line crosses the Y (up) axis.

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
in the game of hearts, four players are each dealt 13 cards from a deck of 52. is this a function? if so, what are the domain an
skelet666 [1.2K]

Based on the fact the game of hearts, four players are each dealt 13 cards from a deck of 52

  • The domain is the deck of 52 cards
  • codomain is 4 players
  • function, f(k) maps a card to each player
  • It is surjective

This is further explained below.

<h3>What is a surjective Function?</h3>

A surjective function is a kind of function that exists in mathematics that ensures that any element y may be transferred to element x in such a way that f(x) equals y.

To put it another way, each element that makes up the function's codomain is the mirror image of at least one element that makes up the domain.

Generally, function, f(k) maps a card to each player

And since each player is dealt 13 cards st 13 of the cards are mapped to each player.

It is a function as one card is mapped to one and only one player.

The function is not injective because 13 cards 1 are mapped to one player so it is a many-one function but the injective function does not map two elements to a common clement.

In conclusion, It is surjective as each player is dealt 13 cards. the function is not injective hence rot bijective.

Read more about surjective

brainly.com/question/13423972

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5 0
1 year ago
What is the common difference for this arithmetic sequence?54,50,46,42,38,...​
drek231 [11]

Answer:

Minus each number to figure out the common difference which is -4.

54-4= 50

50-4= 46

46-4= 42

42-4= 38

3 0
3 years ago
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