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pav-90 [236]
4 years ago
11

3w - 4w = 8 2w+ 3w =-6

Mathematics
1 answer:
kvv77 [185]4 years ago
7 0

Answer: w=-6/14

Step-by-step explanation:

First you are going to put one equation on top of the other and subtract. Then you will use your new equation to combing like terms then divide your end result by your w value and make an improper fraction.

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For each of the following, use the given information/picture to write an equation in point-slope form. Just the ones that have t
Delvig [45]

Answer:

4. y = -x + 8

9. y = 3/2x + 15

16. y = 1/2x -5

20. y = -3/5x + 16

13. y = -1/2x + 1

14. y =  3/4x - 2

Step-by-step explanation:

4. 5=3(-1)+b = 8

9. 6=-6(3/2)+b=15

16. \frac{1--2}{12-6} =\frac{3}{6} = \frac{1}{2}

     -2= (1/2)6 + b = -5

20. \frac{19-13}{-5-5}= -\frac{6}{10} =-\frac{3}{5}

     19 = -3/5(-5) + b = 16

7 0
3 years ago
What is the value of A and B
solmaris [256]

Answer:

a = 3 & b = -10

Step-by-step explanation:

(X - 5)^2 + a = X^2 +bX + 28

Solving the left hand side

(X - 5)^2 + a

= (X - 5)(X - 5) + a

= X^2 - 5X - 5X + 25 + a

= X^2 - 10X + 25 + a

Equating the the right hand side

X^2 - 10X + 25 + a = X^2 +bX + 28

: -10X = bX

X = -10 and

25 + a = 28

a = 28 - 25

a = 3

5 0
3 years ago
A poker hand consisting of 7 cards is dealt from a standard deck of 52 cards. Find the probability that the hand contains exactl
77julia77 [94]

Answer:

The probability is 2,010,580/13,378,456

Step-by-step explanation:

Here is a combination problem.

We want to 7 cards from a total of 52.

The number of ways to do this is 52C7 ways.

Also, we know there are 12 face cards in a standard deck of cards.

So we are selecting 3 face cards from this total of 12.

So also the number of cards which are not face cards are 52-12 = 40 cards

Out of all these 40, we shall be selecting exactly 4. The number of ways to do this 40C4

Thus, the required probability will be;

(40C4 * 12C3)/52C7 = (91,390 * 220)/133,784,560

= 20,105,800/133,784,560 = 2,010,580/13,378,456

7 0
4 years ago
Absolute value of -12 and -15
kvasek [131]

Absolute value- the amount a number is away from zero. With this information, we can conclude,

|-12| = 12

|-15| = 15

5 0
3 years ago
Read 2 more answers
Let g be the function given by g(x) = −3x2 − 2x + 3. Evaluate g(−2). A) g(−2) = 5 B) g(−2) = 19 C) g(−2) = −5 D) g(−2) = −19
Mars2501 [29]

Answer:   C. g(-2) = -5

<u>Step-by-step explanation:</u>

g(-2) is when you replace all of the x's in the function with -2

g(x) = -3x² - 2x + 3

g(-2) = -3(-2)² - 2(-2) + 3

       =  -3(4)   +  4     + 3

       =  - 12     + 4      + 3

       =   -12            +7

       =            -5

5 0
3 years ago
Read 2 more answers
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