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Vera_Pavlovna [14]
3 years ago
11

What is the least common denominator for 2/5 + 3/7

Mathematics
2 answers:
muminat3 years ago
3 0

Answer:

35

Step-by-step explanation:

2/5 + 3/7

the least common denominator is 35 because 14/35 + 15/35.

ExtremeBDS [4]3 years ago
3 0

Answer: 0

Step-by-step explanation:

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The following graph represents the distance a commercial airplane travels over time, at cruising speed and an altitude of 35,000
ANEK [815]

Answer:

see the explanation

Step-by-step explanation:

<u><em>The picture of the question in the attached figure</em></u>

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form k=\frac{y}{x} or y=kx

In a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin

Let

x ----> the time in hours

y ----> the distance in miles

<em>Find the value of k</em>

For the point (4,2268)

k=\frac{2,268}{4}=567\ mph

The slope represent the speed of the airplane

so

The linear equation is

y=567x

Part 1 :

The point (0,0) represents the starting point of the aircraft, when the time and distance are equal to zero. The cruising starts when time t = 0.

Part 2 :

The  point  (4, 2268) represents the plane after 4 hours of cruise , and shows it has traveled a distance of 2268 miles after 4 hours

3 0
3 years ago
Please help me with this it’s hard
alina1380 [7]
It is mostly likely D or B but I think it’s D
7 0
3 years ago
Read 2 more answers
(3x + 3) (2x − 2)<br> Please help me
kupik [55]
The answer is 6(x^2 -1) I have provided a picture with my work and the answer

8 0
3 years ago
1. Find the LCM of the given numbers.<br> 4 and 7
GuDViN [60]

Answer:

The LCM of (4,7) is 28

Step-by-step explanation:

7 0
2 years ago
Of police academy applicants, only 25% will pass all the examinations. suppose that 12 successful candidates are needed. what is
Genrish500 [490]
The probability is 0.0008.

I used a binomial probability on this one, since there are two outcomes (either pass or fail); the events are independent (the probability of one person passing does not influence the probability of another passing); and there are a fixed number of trials (in this case, 20).

For binomial probabilities, we use the formula:
_nC_k=p^k*(1-p)^{n-k}

With our information, we have:

8 0
3 years ago
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