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Drupady [299]
3 years ago
5

3. Which quadratic equation has 2 and —3 as its roots?

Mathematics
1 answer:
Digiron [165]3 years ago
3 0

Answer:

B

Step-by-step explanation:

x2 + x -6 = (x-2)(x+3)

x = 2, -3

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Maura runs 5 miles in 1.25 hours. Ava runs 3 miles in 50 minutes, or 0.83 hour. Who runs faster?
Helga [31]

Answer:

Maura runs at a pace of a 15 minute mile. Ava runs at a pace of a 16:40 minute mile. Maura runs faster.

Step-by-step explanation:

To get this answer I divided 1.25 by 5 which is .25. Then if you divide 60 minutes by .25 the answer is 15 minutes making her run at a pace of 15 minutes per mile. I did a similar calculation for Ava. I divided 50 by 3 which gave me 16.6667. Then i figured out what 2/3 of a minute was, which is 40 seconds. That led me to the conclusion that Ava runs at a pace of 16:40.

hope this helps!!

6 0
3 years ago
Read 2 more answers
Find the volume of the composite solid below.<br> 4 ft<br> 3 ft<br> -<br> 4 ft<br> 10 ft
Aleks [24]

Answer:

173.3ft

Step-by-step explanation:

We'll start by the rectangle below

so remember the formula: l · w · h

10 · 4 · 3 = volume

volume = 120 ft

Rectangular pyramid

Volume = \frac{1}{3} b · h

Volume = 1/3 40 · 4

Volume = 1/3 160

Volume = 53.3 ft

120 + 53.3 = 173.3 ft

6 0
4 years ago
The number of hours, h, it takes for a block of ice to melt varies inversely as the temperature, t. If it takes 2 hours for a sq
mrs_skeptik [129]
H=k/t where k is the constant of proportionality
2=k/70
k=140
5 0
3 years ago
Read 2 more answers
The water hose can fill a water basin in 6 minutes, while it takes 8 minutes to empty it with the drain spigot. How long will it
attashe74 [19]

Answer:24

Step-by-step explanation:

7 0
4 years ago
What is the value of y?<br> O A. 30°<br> OB. 40°<br> O C. 50°<br> O D. 60°
Lera25 [3.4K]
<h3>Answer:  B. 40</h3>

For any triangle, the three angles always add to 180

(y+10)+(2y)+(50) = 180

3y+60 = 180 ... combine like terms

3y+60-60 = 180-60 ... subtract 60 from both sides

3y = 120

3y/3 = 120/3 .... divide both sides by 3

y = 40

5 0
3 years ago
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