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adoni [48]
3 years ago
7

Solve each of the following quadratic equations (x+7)(x+1)=0

Mathematics
1 answer:
Solnce55 [7]3 years ago
8 0
Solve each equation for x by finding a, b, and c of the quadratic then applying the quadratic formula. 
x=-1, -7
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Which is a flat surface with no thickness that contains many lines and extends without end in the directions of all its lines?
Lina20 [59]

Answer: A <em>plane </em>

This needs to be 20 characters long so this is ok

3 0
2 years ago
Two cards are selected from a standard deck of 52 playing cards. the first is replaced before the second card is selected. find
Iteru [2.4K]
<span>The correct answer is
</span>  Find the probability of selecting a diamond and then selecting a queen.

 standard deck of 52 playing cards

<span>hearts: 2, 3, 4, 5, 6, 7, 8, 9, 10, j, q, k, A---- > 13 cards</span>

<span>clubs: 2, 3, 4, 5, 6, 7, 8, 9, 10, j, q, k, A---- > 13 cards</span>

<span>spades: 2, 3, 4, 5, 6, 7, 8, 9, 10, j, q, k, A---- > 13 cards</span>

<span>diamonds: 2, 3, 4, 5, 6, 7, 8, 9, 10, j, q, k, A---- > 13 cards</span>

 a)  The probability of selecting a diamond is 13/52

<span>b)  </span>The probability of selecting a queen is 4/52

<span>c)   </span>The probability of selecting a diamond and then selecting a queen is

(13/52)*(4/52)=0.0192------------->1.92%

6 0
3 years ago
Six times the sum of a number and 3 is 12 less than 12 times the number. Find the number.
kolezko [41]
6x+3=12x-12  
15=6x
5/2=x



8 0
3 years ago
Read 2 more answers
Simplify. 2^5−4⋅3^3<br> 7+(1+100√)
frez [133]

\\ \sf\bull\longmapsto 2^5-4(3^3)

\\ \sf\bull\longmapsto 32-4(27)

\\ \sf\bull\longmapsto 32-108

\\ \sf\bull\longmapsto -76

7 0
2 years ago
3/5 ÷ 1 1/4 =<br> (20 points)
Anna11 [10]

3/5 ÷ 1 1/4 = 0.48

0.48 will be your anwer


7 0
2 years ago
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