3 years ago

In ΔQRS, q = 1.3 inches, r = 1.6 inches and ∠S=157°. Find the length of s, to the nearest 10th of an inch.

Mathematics

1 answer:

hjlf3 years ago

8 0

Answer:

2.8

Step-by-step explanation:

using cosine rule

$s^{2}$ = $1.3^{2} + 1.6^{2} - 2(1.3)(1.6)cos 157$

s = $\sqrt{8.0793}$ = 2.842 = 2.8

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Svetradugi [14.3K]

Answer:

Step-by-step explanation:

a negative plus a negative makes a positive

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2 years ago

The triangle has size with the lengths of 3 cm 13 cm and 14 cm Is it a right triangle?

WITCHER [35]

Answer:

No, it is not a right triangle

Step-by-step explanation:

Let H = 14 cm

B = 3 cm

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According to pythagoras theorem:

H^2 = P^2 + B^2

14^2 = 13^2 + 3^2

196 = 169 + 9

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3 years ago

Four members from a "55"person committee are to be selected randomly to serve as chairperson, vice-chairperson, secretary, an

liq [111]

Answer:

8,185,320 different leadership structures

Step-by-step explanation:

Since the order at which the members of the committee are chosen matters, this is a permutation of 4 out 55 people and it is given by:

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8,185,320 different leadership structures are possible.

3 0

3 years ago

Solve due soon. I will give brainliest

postnew [5]

Answer:

m<1=145°

m<2=35°

m<3=35°

Step-by-step explanation:

m<1=145°

m<2=35°

m<3=35°

6 0

3 years ago

Read 2 more answers

when a spherical balloon is filled with air, it has a radius of 3 inches. what is the estimate for the volume of air in the ball

Crazy boy [7]

The volume of a sphere is given by the equation $V=\frac{4}{3} \pi r^{3}$ , where V is the volume and r is the radius.

To answer this question, simply plug the correct values into the equation:

$V=\frac{4}{3} \pi 3^{3} \\V=4.1888(27)\\V=113.0976$

The volume of the air in the balloon is about 113.0976 in3.

Hope this helps!!

7 0

3 years ago