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Iteru [2.4K]
3 years ago
7

Sandy evaluated the expression below

Mathematics
2 answers:
andre [41]3 years ago
8 0

Answer:

Sandy should have evaluated (-2)³ as -8

Step-by-step explanation:

(-2)³ (6 - 3) - 5(2 + 3) = -8 · 3 - 5 · 5 = - 24 - 25 = - 49

Because:

(-2) · (-2) · (-2) = 4 · (-2) = - 8

God with you!!!

Fittoniya [83]3 years ago
6 0

Answer: a

Step-by-step explanation:

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Julia went to the grocery store and purchased cans of soup and frozen dinners. Eack
BigorU [14]

A system of equations that could be used to  determine the number of cans of soup purchased and the number of frozen dinners  purchased is:

350x + 500y = 4800

y = 2x

<h3>Definition of variables </h3>

x = number of cans of soup purchased

y = number of frozen dinners purchased.

<h3>Simultaneous equations </h3>

The system of equations are known as simultaneous equations. Simultaneous equations are group of equations that have to be solved together in order to determine the required values.

<h3>Methods used to solve simultaneous equations </h3>
  1. Elimination method
  2. Graph method
  3. Substitution method

To learn more about simultaneous equations, please check: brainly.com/question/25875552

4 0
2 years ago
What is the result of 4÷ 8/12 ? <br>A. 1/6<br>B. 3/8<br>C. 3<br>D. 6<br>help me please ! thank you
IRINA_888 [86]

Answer:

D 6

Step-by-step explanation:

4/1 / 8/12

4/1 * 12/8

48 / 8 = 6


3 0
3 years ago
b) How many ways can you deal cards (from a deck of 52) to 4 people when each player gets 7 cards. 2 hidden and 5 visible. Assum
Mariana [72]

Answer:

{52 \choose 7}{45 \choose 7}{38 \choose 7}{31 \choose 7}{7 \choose 2}^4

Step-by-step explanation:

The dealing of the cards can be seen in the following way:

We first have to choose which 7 cards are going to be dealt to the 1st player. So we have to pick 7 cards out of the 52 available cards. This can be done in {52 \choose 7} ways. Now that we have chosen which 7 cards are going to be dealt to the 1st player, we have to choose which 2 of them are going to be the hidden ones. So we have to pick 2 cards out of the 7 cards to be the hidden ones. This can be done in {7 \choose 2} ways. At this point we now know which cards are being dealt to the 1st player, and which ones are hidden for him. Then we have to choose which 7 cards to deal to the 2nd player, out of the remaining ones. So we have to pick 7 out of 52-7=45. (since 7 have been already dealt to the 1st player). This can be done in {45 \choose 7}. Then again, we have to pick which 2 are going to be the hidden cards for this 2nd player. So we have to pick 2 out of the 7. This can be done in {7 \choose 2} ways. Then we continue with the 3rd player. We have to choose 7 cards out of the remaining ones, which at this point are 52-7-7=38. This can be done in {38 \choose 7}. And again, we have to choose which ones are the hidden ones, which can be chosen in {7 \choose 2} ways. Finally, for the last player, we choose 7 out of the remaining cards, which are 52-7-7-7=31. This can be done in {31 \choose 7} ways. And choosing which ones are the hidden ones for this player can be done in {7 \choose 2} ways. At the end, we should multiply all our available choices on each step, to get the total choices or total ways to deal the cards to our 4 players (since dealing the cards is a process of several steps with many choices on each step).

{52 \choose 7}{7 \choose 2}{45 \choose 7}{7 \choose 2}{38 \choose 7}{7 \choose 2}{31 \choose 7}{7 \choose 2}={52 \choose 7}{45 \choose 7}{38 \choose 7}{31 \choose 7}{7 \choose 2}^4

7 0
3 years ago
Build a triangle is it possible to build 5,5,3
allochka39001 [22]
No because adding the two fives will give you a 10 and 10 is greater than 3
7 0
3 years ago
PLEASE HELP ILL GIVE BRAINLIEST
Alexeev081 [22]

Answer: A.

Step-by-step explanation:

4 0
3 years ago
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