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liubo4ka [24]
3 years ago
13

Help? high school pre cal

Mathematics
1 answer:
o-na [289]3 years ago
3 0

Answer:

B. 2, -0.5

Step-by-step explanation:

Given the equation

-2x^2+2=-3x

Rewrite it as

-2x^2+3x+2=0

Graph the graph of the quadratic function y=-2x^2+3x+2

The grapg of this function is a parabola going downwards.

This parabola intersects the x-axis at points x = -0.5 and x = 2, so the solutions of the equation are x = -0.5 and x = 2

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How many ways are there to select a 5-card hand from a regular deck such that the hand contains at least one card from each suit
Snezhnost [94]

Answer:

There are 685464 ways of selecting the 5-card hand

Step-by-step explanation:

Since the hand has 5 cards and there should be at least 1 card for each suit, then there should be 3 suits that appear once in the hand, and one suit that apperas twice.

In order to create a possible hand, first we select the suit that will appear twice. There are 4 possibilities for this. For that suit, we select the 2 cards that appear with the respective suit. Since there are 13 cards for each suit, then we have {13 \choose 2} = 78 possibilities. Then we pick one card of all remaining 3 suits. We have 13 ways to pick a card in each case.

This gives us a total of 4*78*13³ = 685464 possibilities to select the hand.

6 0
3 years ago
Ayudenme 5fjgfgjzngfjgxj <br> kcnhgbxjhdjtfbgrbftjxbxh
olchik [2.2K]

Ayudenme 5fjgfgjzngfjgxj

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6 0
3 years ago
A rental car agency charges a flat fee of $139.00 plus $30.00 per day to rent a certain car. Another agency charges a fee of $13
Sveta_85 [38]
139 + 30d = 13 + 51d
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5 0
3 years ago
Which number is the BASE?<br> 23=8<br> 8
ICE Princess25 [194]

Answer:

Step-by-step explanation:

For example, the base-8 numeral 23-8 contains two digits, "2" and "3", and with a base number (subscripted) "8". When converted to base-10, the 23-8 is equivalent to 19-10, i.e. 23-8 = 19-10.

3 0
3 years ago
Evaluate the expression when x = 4 and y=-5.<br> -5y+x
Maru [420]

Answer:

29

Step-by-step explanation:

<u>Step 1:  Set x to 4 and set y to -5</u>

<u />-5y + x

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25 + 4

29

Answer:  29

8 0
3 years ago
Read 2 more answers
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