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Fynjy0 [20]
3 years ago
5

How many terms are in the expression 4x-7x+1-8x+3 ?

Mathematics
1 answer:
ruslelena [56]3 years ago
3 0

Answer:

5 terms

this also make this expression a polynomial!

Step-by-step explanation:

pls j0!n me

mnv-dyzw-eov

there will be nothing unsafe or inappropriate

You might be interested in
44. Which number line represents
creativ13 [48]

Step-by-step explanation:

=> 45 + 4x > 125

=> 4x > 125 - 45

=> 4x > 30

=> x > 30/4

=> x > 7.5

3 0
3 years ago
The random variable x is the number of occurrences of an event over an interval of ten minutes. It can be assumed that the proba
padilas [110]

Answer:

A Poisson distribution, with λ=5.3

P(x) = \frac{\lambda^{x} *e^{-\lambda}}{x!}

Step-by-step explanation:

For this type of random variables, a Poisson distribution is the most adecuate.

If the number of occurrences in ten minutes is 5.3, we can define the parameter λ=5.3 and the probability function as:

P(x) = \frac{\lambda^{x} *e^{-\lambda}}{x!} =\frac{5.3^{x} *e^{-5.3}}{x!} \approx\frac{0.005*5.3^{x}}{x!}

3 0
3 years ago
The school band is going to buy candy bars for $430 and sell them at school for $1.50 each. The band has to raise $1,350 to help
ioda

Answer:

x = 900 or 1.50 * x = 1,350 (Though I advise you to use x = 900)

Step-by-step explanation:

Divide 1,350 by 1.50 to see that they need to sell exactly 900 bars. We can fact check by using a calculator to do the equation 1.50 * 900 = 1,350.

5 0
4 years ago
A pool measuring 18 meters by 22 meters is surrounded by a path of uniform width. If the area of the pool and the path combined
suter [353]

Answer: the width of the uniform path is 9 meters.

Step-by-step explanation:

Let x represent the width of the uniform path.

A pool measuring 18 meters by 22 meters is surrounded by a path of uniform width. It means that the combined length of the pool and the uniform path is (18 + 2x) meters and the combined width of the pool and the uniform path is (22 + 2x) meters.

If the area of the pool and the path combined is 1440 square meters, it means that

(18 + 2x)(22 + 2x) = 1440

396 + 36x + 44x + 4x² = 1440

4x² + 80x + 396 - 1440 = 0

4x² + 80x - 1044 = 0

Dividing both sides of the equation by 4, it becomes

x² + 20x - 261 = 0

x² + 29x - 9x - 261 = 0

x(x + 29) - 9(x + 29) = 0

x - 9 = 0 or x + 29 = 0

x = 9 or x = 29

Since the width cannot be negative, then x = 9 meters

5 0
3 years ago
Helpppppppppppppppppp
shusha [124]
The answer is -1

cot  \frac{3π}{4} = 1 ÷ tan \frac{3π}{4}

<span>the trig unit circle
</span>tan \frac{3π}{4} = - tan \frac{π}{4}
= -1

Remember,
cot \frac{3π}{4} = 1 ÷ tan \frac{3π}{4}
= 1 ÷ -1
= -1
3 0
3 years ago
Read 2 more answers
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