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3 years ago

Find the approximate value of b in the triangle shown.131285

Mathematics

2 answers:

Paul [167]3 years ago

8 0

Answer:

The side b is 5 units

Step-by-step explanation:

Given the two sides of triangle and one angle of triangle we have to find the remaining side of triangle.

a=12 units

c=10 units

∠B=24°

we have to find the side b of triangle ABC

By cosine law,

$\cos B=\frac{a^2+c^2-b^2}{2ac}$

$\cos 24^{\circ}=\frac{12^2+10^2-b^2}{2(12)(10)}=\frac{144+100-b^2}{240}$

$b^2=244-240\cos 24^{\circ}=24.7490901658$

$b=4.97\sim 5units$

givi [52]3 years ago

4 0

Answer:

The answer is D. 5

Step-by-step explanation:

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tamaranim1 [39]

I know it’s not right, I think it’s obtuse

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3 years ago

The left and right page numbers of an open book are two consecutive integers whose sum is 23. Find these page number.

zavuch27 [327]

Answers: The page numbers are 11 and 12

==========================================================

Explanation:

Consecutive integers are ones that follow immediately after another. For example, the set {7,8,9,10} are consecutive.

Let,

x = first page, some positive whole number
x+1 = second page, follows immediately after page x

Adding those two said pages will lead to 23

first + second = 23

(x) + (x+1) = 23

2x+1 = 23

2x = 23-1

2x = 22

x = 22/2

x = 11 is the first page

x+1 = 11+1 = 12 is the second page

Check: 11+12 = 23 which confirms the answers.

8 0

2 years ago

Which table best represents the steps to solve the equation 8 + = 4?

aleksklad [387]

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3 years ago

Find -48a divided by 8 when a=1 write your answer in simplest form

lukranit [14]

-48a÷ 8 can be written as,

$\frac{-48a}{8}$

Put a=1 in the above exprression and solve.

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Therefore, the solution is -6.

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1 year ago

Use the row of numbers shown below to generate 12 random numbers between 01 and 99. 11097, 51877, 41665, 78465, 79932, 54899, 72

Nikolay [14]

The suitable numbers are:

11 09 75 18 77 41 66 57 84 65 79 93

Step-by-step explanation:

The random number line is used to generate random numbers between the given range

As the numbers have to be chosen between 01 to 99, two digit pairs will be made.

Every time a pair is chosen, it is checked whether it falls in the range or not. If it falls in the range, it is selected otherwise the number is ignored.

So,

Given random number line is:

11097, 51877, 41665, 78465, 79932, 54899, 72970, 71789

The pairs will be:

11 09 75 18 77 41 66 57 84 65 79 93 25 48 99 72 97 07 17 89

Hence,

The suitable numbers are:

11 09 75 18 77 41 66 57 84 65 79 93

Keywords: Random number line, statistics

Learn more about random number line at:

#LearnwithBrainly

8 0

3 years ago

Find the approximate value of b in the triangle shown.131285​

Find the approximate value of b in the triangle shown.131285