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Slav-nsk [51]
3 years ago
15

I need help on this. any answers?

Mathematics
1 answer:
notka56 [123]3 years ago
7 0
74 can u give me brainliest lol?
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Simplify (2x^2+6x+5) - (6x^2+3x+5)
Sati [7]

Your answer will turn out to be −4x^2+3x.

4 0
3 years ago
Read 2 more answers
It takes 45 minutes to drive to the nearest bowling alley taking city streets going 30 miles per hour
zmey [24]

Answer:

The time it will take to get to the bowling alley while driving at 65 mph on the freeway is approximately 20.8 minutes

Step-by-step explanation:

The given parameters are;

The time it takes through the streets to drive to the nearest bowling alley = 45 minutes

The speed of driving through the streets = 30 miles per hour (mph)

The speed of driving through the freeway to the bowling alley = 65 mph

From the speed of driving through the streets and the time taken we have;

The formula for speed, S, is S = Distance/Time

Therefore, 30 mph = Distance/45 minutes

Where, 1 hour = 60 minutes, 45 minutes = 1/60×45 hour = 3/4 hour

30 mph = Distance/45 minutes = Distance/(3/4 hour)

30 mph = Distance/(3/4 hour)

Distance = 30 mph × 3/4 hour = 22.5 miles

Given that the distance through the freeway and through the streets are the same, we have from speed = Distance/Time;

Time = Distance/Speed

The speed through the freeway = 65 mph while the distance remain 22.5 miles

Therefore;

Time = 22.5 miles/(65 mph) ≈ 0.346 hour ≈ 20.8 minutes

The time it will take to get to the bowling alley while driving at 65 mph on the freeway is approximately 20.8 minutes.

8 0
3 years ago
What is 1600+3200 pls
andre [41]

1600+3200 = 4800

Answer: 4800

7 0
3 years ago
Which best explains whether a triangle with side lengths 5 cm, 13 cm, and 12 cm, is a right triangle?
Llana [10]
The Pythagorean Proposition can help you explain this:
{a}^{2}  =  {b}^{2}  +  {c}^{2}  \\ {13}^{2}  =  {5}^{2}  +  {12}^{2}  \\ 169 = 25 + 144
7 0
3 years ago
Read 2 more answers
12. Find the value of x.<br> (11x - 151°<br> (5x - 13°
Step2247 [10]

Answer:

Step-by-step explanation:

I guess the angles are supplementary, which means they have a sum of 180º.

11x - 15 + 5x - 13 = 180

16x -28 = 180

16x = 208

x = 13

4 0
3 years ago
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