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Slav-nsk [51]
3 years ago
7

Solve this equation-6x^2=-144q

Mathematics
1 answer:
joja [24]3 years ago
7 0

Answer:

4.9

Step-by-step explanation:

-6x2 = -144q

Divide both sides by -6

-6x2/-6 = -144/-6 q

X2 = 24q

Square root both sides

X = square root of 24q

X =4.9√q

I hope this was helpful, Please mark as brainliest

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ozzi

Answer:

Brainliest!!!

Step-by-step explanation:

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5 0
3 years ago
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Please assist me with #5, 6, 7, 8​
Leona [35]

Answer:

5a. -0.4 m/s²

5b. 290 m

6. 12.9 s

7. 100 s

8. 17.2 km/hr

Step-by-step explanation:

5. "While approaching a police officer parked in the median, you accelerate uniformly from 31 m/s to 27 m/s in a time of 10 s.

a. What is your acceleration?

b. How far do you travel in that time?"

Given:

v₀ = 31 m/s

v = 27 m/s

t = 10 s

Find: a and Δx

v = at + v₀

(27 m/s) = a (10 s) + (31 m/s)

a = -0.4 m/s²

Δx = ½ (v + v₀) t

Δx = ½ (27 m/s + 31 m/s) (10 s)

Δx = 290 m

6. "If a pronghorn antelope accelerates from rest in a straight line with a constant acceleration of 1.7 m/s², how long does it take for the antelope to reach a speed of 22 m/s?"

Given:

v₀ = 0 m/s

v = 22 m/s

a = 1.7 m/s²

Find: t

v = at + v₀

(22 m/s) = (1.7 m/s²) t + (0 m/s)

t = 12.9 s

7. "A 1200 kg airplane starts from rest and moves forward with a constant acceleration of 5 m/s² along a runway that is 250 m long. How long does it take the plane to travel the 250 m?"

Given:

v₀ = 0 m/s

a = 5 m/s²

Δx = 250 m

Find: t

Δx = v₀ t + ½ at²

(250 m) = (0 m/s) t + ½ (5 m/s²) t²

t = 100 s

8. "During a marathon, a runner runs the first 10 km in 0.58 hours, the next 10 km in 0.54 hours and the last 10 km in 0.62 hours.  What is the average speed of the runner during that marathon?"

This isn't a constant acceleration problem, so there's no need for a chart.

Average speed = total distance / total time

v = (10 km + 10 km + 10 km) / (0.58 hr + 0.54 hr + 0.62 hr)

v = 30 km / 1.74 hr

v = 17.2 km/hr

3 0
3 years ago
the radius of a circular candle is 5mm. if i want to attach a ribbon to the outside, how much ribbon do i need? (answer choices
Oxana [17]

Answer:

18.84

PLEASE MARK BRAINLIEST!! THX

Step-By-Step EXPLAINATION:

radius: 6 ft

3.14*6=

18.84

7 0
3 years ago
Round to the nearest hundredth 4.231
Drupady [299]

Answer:

4.23

Step-by-step explanation:

6 0
2 years ago
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What’s the value of b?? right answers
Alex Ar [27]
<h3>You are correct. The answer is b = -6</h3>

The rules used here are

  • (a^b)^c = a^(b*c) ... multiply exponents, base stays the same
  • a^(-b) = 1/(a^b) .... use reciprocal to get the exponent positive

The first rule mentioned has us multiply the exponents b and 4 to get 4b. Then use the second rule to turn 1/(y^24) into y^(-24). So we can see that 4b = -24 leads to b = -6 after dividing both sides by 4.

4 0
3 years ago
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