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3 years ago

What are the numbers of Pi?

Mathematics

2 answers:

Ivan3 years ago

7 0

22/7 or 3.14 equal pi

sladkih [1.3K]3 years ago

6 0

Answer:

3.14159265359

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in a recent year, the weather was partly cloudy 2/5 of the days. Assuming there are 365 days ina year, how many days were partly

Karolina [17]

Here's two ways

1. (365*2)/5 =

730/5 =

146 days

2. 365/5=

73*2

146 days

3 0

3 years ago

Read 2 more answers

Help me almost done!

Andreyy89

Cos 60° is ½

and sin 60° is √3/2

so it is true....

that table may help you

6 0

4 years ago

What is m<1 and m<2 A 40 B 50 C 140 D 90

lina2011 [118]

Answer:

<h2>here...... </h2><h2>m′<1 = 40°</h2><h2>and</h2><h2> m'<2= 20°</h2><h2>------++++--------</h2><h2>sum of angle of triangle is 180°</h2>

3 0

3 years ago

In ∆PQR, PQ = 39 cm and PN is an altitude. Find PR if QN = 36 cm and RN = 8 cm.

OLEGan [10]

Use the Pythagorean theorem two times:

$NQ^2+NP^2=QP^2\\\\36^2+h^2=39^2\\\\1296+h^2=1521\qquad\text{subtract 1521 from both sides}\\\\h^2=225\to h=\sqrt{225}\\\\\boxed{h=15\ cm}$

second time:

$PR^2=RN^2+NP^2\\\\x^2=8^2+15^2\\\\x^2=64+225\\\\x^2=289\to x=\sqrt{289}\\\\\boxed{x=17\ cm}$

<h3>Answer: PR = 17 cm.</h3>

8 0

3 years ago

Read 2 more answers

Find x. See attached picture.

pishuonlain [190]

Answer:

B. 22

Step-by-step explanation:

We know tan60=

$\sqrt{3}$

Let common side be x

Tan = opp/adj= sqrt(3)

$\frac{11 \sqrt{6} }{x} = \sqrt{3}$

Transposing we get :

$\frac{11 \sqrt{6} }{ \sqrt{3}} = x = 11 \sqrt{2}$

Now, we know that since the other triangle is a 45-45-90 triangle, we can state that the side adjacent to the given angle = 11 sqrt(2) as the two sides are equal due to the triangle being an isoceles triangle.

Solve for x by using Pythagorean theorem:

$\sqrt((11 \sqrt{2}^{2} + (11 \sqrt{2} )^{2} ) = x$

$= > \sqrt{2(11 \times 11 \times \sqrt{2} \times \sqrt{2}) } = x$

$= > \sqrt{484} = x = 22$

Hence answer is B. 22

3 0

2 years ago