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alexgriva [62]
3 years ago
10

Anyone know how to do 23 and 24? Help is appreciated!

Mathematics
1 answer:
tekilochka [14]3 years ago
8 0
23. 
x^2 + 2x - 8 = 0
(x + 4)(x - 2) = 0

x  = -4, 2

There are 2 roots



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Only questions 10-12!! Help please!!
butalik [34]

Answer:

Step-by-step explanation:

10) The opposite sides of a parallelogram are equal. It means that

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3a - a = 15 - 11

2a = 4

a = 4/2 = 2

Also,

3b + 5 = b + 11

3b - b = 11 - 5

2b = 4

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11) The opposite angles of a parallelogram are congruent and the adjacent angles are supplementary. This means that

2x + 11 + x - 5 = 180

3x + 6 = 180

3x = 180 - 6 = 174

x = 174/3 = 58

Therefore,

2x + 11 = 2×58 + 11 = 127 degrees

The opposite angles of a parallelogram are congruent, therefore,

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y = 127/2 = 63.5

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2y = 10

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z + 9 = 2z + 7

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3 years ago
The scale in the drawing is 2in:4ft. What are the length and width of the actual room find the area of the actual room
Marizza181 [45]
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A 10 sided die is numbered 1-10 if you roll it 60 times what is the best prediction for how many times you would eithrr a 1 or 2
Kamila [148]

Answer: 12

Step-by-step explanation:

So if its 1-10, and you can either roll a 1 or 2, it would be 2/10, then simplified to 1/5, and in order to get the answer you need to multiply it by 60

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navik [9.2K]

Answer:

see below

Step-by-step explanation:

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14/18 divide by 2/2 = 7/9

7 0
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...?..........................
andrew-mc [135]

Answer:

.

Step-by-step explanation:

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