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3 years ago

Write the following ratio using two other notations. 8/9

Mathematics

1 answer:

belka [17]3 years ago

4 0

Answer: 8 to 9 or .8888888888888888889

Step-by-step explanation:

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If cos x= sin(20 + x)° and 0° < x < 90°, the value of xis

ruslelena [56]

Answer:

draw a right angle triangle

Step-by-step explanation:

Let one of the angles be A

cos A = sin (90-A)

90 - x - 20 = x

2x = 70

x = 35 degrees

4 0

3 years ago

Solve for x. 8/9x=32 Enter your answer in the box. x =

lorasvet [3.4K]

Answer:

x = 36

Step-by-step explanation:

Given;

(8/9)x = 32

Solving for x

Multiply through by 9

(8/9)×9 ×x = 32×9

8x = 32×9

Divide through by 8

8x/8 = 32×9/8

x = 36

6 0

3 years ago

Write an algebraic expression for the phrase. 5 times the sum of p and r

DedPeter [7]

The correct answer is 5(p+r) because sum means add

Hope this helped :)

7 0

3 years ago

Please helppppp I neeed to pass this class

mafiozo [28]

Answer:

(x+8, y+ -2)

Step-by-step explanation:

Actually, it would be (x+8,y-2) but the written part already has a + soo...

However, if you wish to complete problems like this in the future, pick one corner of the polygon and count how many places you mover right or left (x-axis. Right is going to be addition and left is going to be subtraction) and how many you move down or up (y-axis. up being addition and down being subtraction).

3 0

2 years ago

180kg, 250kg, 200kg, 209kg, 195kg, 205kg, 190kg, 188kg, 192kg. What is the IQR of the lion's weights.

velikii [3]

Answer:

Step-by-step explanation:

Given the data:

180kg, 250kg, 200kg, 209kg, 195kg, 205kg, 190kg, 188kg, 192kg

The interquartile range (IQR) = Q3 - Q1

Reordering the data:

180, 188, 190, 192, 195, 200, 205, 209, 250

Q3 = 3/4(n+1)th term

Q3 = 3/4(10) = 7.5 th term = (205+209)/2 = 207

Q1 = 1/4(n+1)th term

Q1 = 1/4(10) = 2.5th term = (188+190)/2 = 189

Q3 - Q1 = 207 - 189 = 18

3 0

3 years ago