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3 years ago

There are an infinite number of points that lie on a period at the end of a sentence. True or False?

Mathematics

2 answers:

Dovator [93]3 years ago

7 0

The answer to this is true

andre [41]3 years ago

4 0

The answer to this question is True

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Question 1: Identify the zeros of the function f(x) = 4x2 − 8x − 1 using the Quadratic Formula. Answers: -1/2 + sqaureroot 5, 1/

Lelechka [254]

Answer:

1. 1/2 +/-√5

2. 1 +/- i √6/2.

Step-by-step explanation:

1. f(x) = 4x^2 - 8x - 1

x = [-(-8) +/-√((-8)^2 - 4*4*-1)] / (2*4)

x =[ 8 +/- √80] / 8

= 1 +/- 4√5/8

= 1 +/- √5/2

= 1/2 +/-√5

2. By a similar method the zeros of the the second equation are:

x = [-(-4) +/- √((-4)^2 - 4*2*5)] / 4

= 4 +/- √(16 - 40) / 4

= 1 +/- √(-24)/4

= 1 +/- i √6 * 2 / 4

= 1 +/- i √6/2.

3 0

4 years ago

The equatorial diameter of a model of earth is 25.6 cm. What is the total surface area of the model

Arisa [49]

Answer:

$2059.7\,\,cm^2$

Step-by-step explanation:

Diameter of a model of earth (D) = 25.6 cm

Radius of a model of earth (r) = $\frac{D}{2}=\frac{25.6}{2}=12.8\,\,cm$

Earth has the shape of a sphere.

Total surface area of a sphere = $4\pi r^2$

Put $\pi=\frac{22}{7}\,,\,r=12.8\,\,cm$

So,

Total surface area of the model $=4(\frac{22}{7})(12.8)^2=2059.7\,\,cm^2$

7 0

3 years ago

2y+4x=14 is it infinite no solution one solution ??????

lubasha [3.4K]

Solution I think I’m not 100% though:/

6 0

2 years ago

Which equation has a slope of –52 and a y-intercept of –2?

kicyunya [14]

Answer:

I'm sure there might be a typo in the question (AKA the slope is -5/2)

but the answer would be

Step-by-step explanation:

y= mx+ b

where m is the slope, and b is the y intercept

y= -52x -2

..........

5x + 2y = –4

2y= -5x -4

y= - 5/2x -2

$y = - \frac{5}{2} x - 2$

6 0

3 years ago

What are the primary factorization of these following numbers : 90,86,25,68,97

wel

If u can message me on my profile, I can help you

7 0

3 years ago