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melamori03 [73]
3 years ago
12

Which is equal to the cos ÐR?PLEASE HELP ME

Mathematics
1 answer:
inna [77]3 years ago
4 0

Answer: 4/5 = .8

cos adj/hyp of r is .8

HOWEVER...

I’m assuming it’s talking about angle R...

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Solve the question below using two different methods.
Tatiana [17]
Sold 17 tulips and 76 roses. tulips is equal to x and roses are equal to 4x+8. Then multiply by the amount they cost and then tulips are 2x and roses are 20x+40. They add together to get 414. 2x=20x=40=414. Solve. x=17. X is equal to the amount of tulips.
6 0
3 years ago
Total number of faculty is 136. There are 6 professors to every 11 lecturers. How many professors are there
laila [671]

Answer:

The Total number of Professors = 48  

Step-by-step explanation:

Given as,

The total number of Faculty = 136

And the Ratio of Professors to Lecturers = 6 Ratio 11

Now According to question

Professors : Lecturers = 6 : 11

So, Let the Number of Professors = 6x

And      The Number of Lecturers = 11x

∴ 6x + 11x = 136

  Or,   17x = 136

   Or,      x = \frac{136}{17} = 8

Hence, the number of Professors = 6 × 8 = 48       Answer

3 0
3 years ago
Select all the correct answers.
irina1246 [14]

Operations that can be applied to a matrix in the process of Gauss Jordan elimination are :

replacing the row with twice that row

replacing a row with the sum of that row and another row

swapping rows

Step-by-step explanation:

Gauss-Jordan Elimination is a matrix based way used to solve linear equations or to find inverse of a matrix.

The elimentary row(or column) operations that can be used are:

1. Swap any two rows(or colums)

2. Add or subtract scalar multiple of one row(column) to another row(column)

as is done in replacing a row with sum of that row and another row.

3. Multiply any row (or column) entirely by a non zero scalar as is done in replacing the row with twice the row, here scalar used = 2

6 0
3 years ago
Please help me worth 35 points!!
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Answer:

Solution given:

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for

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Volume=6*3*2=<u>36cu.in</u>

For third one 4in ,5in,4in

Volume=4*5*4=<u>8</u><u>0</u><u>c</u><u>u</u><u>.</u><u>in</u>

For forth one 2in,9in,3in

Volume=2*9*3=<u>5</u><u>4</u><u>cu</u><u>.</u><u>in</u>

7 0
2 years ago
Read 2 more answers
Find the equation of the parabola that passes through each set of points. (4,10), (0,-18),(-2.-20)
dusya [7]

Answer:

y = (3/2)x2 - (9/2)x+ 9

Step-by-step explanation:

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3 years ago
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