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Liono4ka [1.6K]
3 years ago
13

X²-4x-45 I need to factor this equation

Mathematics
1 answer:
Alchen [17]3 years ago
8 0

Answer:

= (x + 5)(x - 9)

Step-by-step explanation:

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he following data represent the times in minutes required for 18 co-workers to commute to work. 48 42 31 29 41 22 38 38 21 39 22
labwork [276]

Answer:

1, 2, 2, 2, 3, 8, 9

Step-by-step explanation:

The following data represent the times in minutes required for 18 co-workers to commute to work

48 42 31 29 41 22 38 38 21 39 22 48 22 12 34 32 23 28

Rewrite this data in ascending order

12 21 22 22 22 23 28 29 31 32 34 38 38 39 41 42 48 48    

Now, the stem-and-leaf plot is

\begin{array}{cc}\text{Stem}&\text{Leaf}\\ \\1&2\\2&1,2,2,2,3,8,9\\3&1,2,4,8,8,9\\4&1,2,8,8\end{array}

The second row represents the leaves for the given data points in the range 20 to 29 for this stem-and-leaf plot, so the answer is

1, 2, 2, 2, 3, 8, 9

3 0
3 years ago
Worker A can finish a job in
Oksi-84 [34.3K]

Answer:

4

Step-by-step explanation:

\frac{1}{2}  -  \frac{1}{3} \\  \\  =  \frac{1}{6}  \times 24 \\  = 4

8 0
3 years ago
Who wants some free points
Alona [7]

Answer:

thanksssss! <3 :))))))))))

Step-by-step explanation:

6 0
4 years ago
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How many miles can you drive on one gallon of gasoline
ANEK [815]
It all depends on the car . what are the answers ?

5 0
3 years ago
PYTHAGORAS THEROM AND TRIGONOMETRY RATIO​
marysya [2.9K]

Answer:

1) ΔACD is a right triangle at C

=> sin 32° = AC/15

⇔ AC = sin 32°.15 ≈ 7.9 (cm)

2) ΔABC is a right triangle at C, using Pythagoras theorem, we have:

AB² = AC² + BC²

⇔ AB² = 7.9² + 9.7² = 156.5

⇒ AB = 12.5 (cm)

3)  ΔABC is a right triangle at C

=> sin ∠BAC = BC/AB

⇔ sin ∠BAC = 9.7/12.5 = 0.776

⇒ ∠BAC ≈ 50.9°

4) ΔACD is a right triangle at C

=> cos 32° = CD/15

⇔ CD = cos32°.15

⇒ CD ≈ 12.72 (cm)

Step-by-step explanation:

7 0
3 years ago
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