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2 years ago

What is the length of M,N

Mathematics

2 answers:

aleksandr82 [10.1K]2 years ago

5 0

Answer:

Step-by-step explanation:

m x n =mn

irinina [24]2 years ago

4 0

Answer:

Length of MN=7

Step-by-step explanation:

According to the graph given the coordinates of M and N are:

M(5,2) and N(-1,2)

With the help of two coordinates, we can find the distance of a line by using distance formula i.e

Distance = $\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Applying the formula in the coordinates of MN

Distance MN= $\sqrt{(-1-5)^2+(2-2)^2}$

MN= $\sqrt{(-6)^2+0}$

MN= $\sqrt{36}$

MN=6

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Gala2k [10]

<h3>Total snow fall for three days is 8.75 inches</h3>

<em><u>Solution:</u></em>

Given that,

Snow fell over the past three days

$First\ day = 3\frac{2}{4}\ inches = \frac{14}{4}\ inches\\\\Second\ day = 3\frac{2}{4}\ inches = \frac{14}{4}\ inches\\\\Third\ day = 1\frac{3}{4}\ inches = \frac{7}{4}\ inches$

<em><u>What was the total snowfall for the three days?</u></em>

Total snowfall = first day + second day + third day

$Total\ snowfall = \frac{14}{4} + \frac{14}{4} + \frac{7}{4}\\\\Total\ snowfall = \frac{14 + 14 + 7}{4}\\\\Total\ snowfall = \frac{35}{4} \text{ or } 8.75\ inches$

Thus total snow fall for three days is 8.75 inches

5 0

2 years ago

How many sets of 7 questions can be chosen from a file of 25 questions?

likoan [24]

If all 25 questions are different,

When order of selection counts:
P(25,7)
=25!/(25-7)!
=15511210043330985984000000/6402373705728000
=2422728000

When order of selection does not count count:
C(25,7)
=25!/(7!*(25-7)!)
=15511210043330985984000000/(6402373705728000*5040)
=480700

3 0

2 years ago

(4x+5) + (-3x²-3x) how to solve that

Over [174]

Answer:

- 3x² + x + 5

Step-by-step explanation:

Given

(4x + 5) + (- 3x² - 3x) ← remove parenthesis

= 4x + 5 - 3x² - 3x ← collect like terms

= - 3x² + (4x - 3x) + 5

= - 3x² + x + 5

4 0

2 years ago

You dropped two coins. What is the probability that they will both land on<br> heads?

VMariaS [17]

Answer:

50/50

Step-by-step explanation:

they both have 2 sides. half of that is %50

5 0

2 years ago

Read 2 more answers

Question attached as screenshot belowPlease help me with my calculus homework I am paying close attention

Wewaii [24]

Given:

$\int ^1_{-1}\frac{1}{x^2+1}dx$

To evaluate:

As we know,

$\int ^{}_{}\frac{1}{x^2+1^{}}dx=\tan ^{-1}(x)+C$

So, we have

$\begin{gathered} \int ^1_{-1}\frac{1}{x^2+1}dx=\tan ^{-1}(1)-\tan ^{-1}(-1) \\ =\frac{\pi}{4}-(-\frac{\pi}{4}) \\ =\frac{\pi}{4}+\frac{\pi}{4} \\ =\frac{2\pi}{4} \\ =\frac{\pi}{2} \end{gathered}$

Hence, the answer is,

$\frac{\pi}{2}$

5 0

2 months ago