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Yuki888 [10]
2 years ago
6

Do these ratios form proportions? YES or NO

Mathematics
1 answer:
mart [117]2 years ago
8 0

yes the answer is yesss

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Type the correct answer in the box. Round off your answer to the nearest integer.
Mkey [24]

Answer:

∠ p ≈ 59°

Step-by-step explanation:

Using Pythagoras' identity in right triangle ABD to find DB

DB² = 5² + 6² = 25 + 36 = 61 ( take square root of both sides )

DB = \sqrt{61}

---------------------------------------

Using the cosine ratio in right triangle DBC

cos p = \frac{adjacent}{hypotenuse} = \frac{DC}{DB} = \frac{4}{\sqrt{61} } , thus

p = cos^{-1} ( \frac{4}{\sqrt{61} } ) ≈ 59°

6 0
3 years ago
Lin is shopping for a couch with her dad and hears him ask the salesperson, “How much is your commission?” The salesperson says
xxTIMURxx [149]

Answer:

A. $27.23

B. $ 467.77

Step-by-step explanation:

5 1/2 % of commission = 5.5% = 0.055

A.  Commission of the Sales person

0.055 x 495 = $27.23

B. The store will get $495 - the commission for the sales person

$495.00- $27.23= $467.77

8 0
2 years ago
Mia buys a watch while visiting her cousin in California. The sales tax in California is 10.25%.
netineya [11]

Answer:

  • $400

Step-by-step explanation:

<u>Let the watch price be x, then we have:</u>

  • 10.25% of x = 41 or
  • 0.1025x = 41

<u>Solve for x</u>

  • x = 41/0.1025
  • x = 400
8 0
2 years ago
Read 2 more answers
4. What are the values of x and y? HELP PLEASE
Sergeeva-Olga [200]
The bottom answer is correct. I had some trouble with this so I had to find x and y in separate parts.

TO FIND X
notice that the top triangle and bottom triangles are similar, meaning if you multiple all three sides of one by a specific number, it becomes the same size as the bottom triangle.

17 x n = 8, therefore n=8/17
8 x n = X, therefore X=64/17

For some reason, this does not give a correct value for Y, so I had to use trig 

TO FIND Y 

Notice that the angle DAB is the same as DBC (lets call this angle Ø)

Using trig rule, we know that the cos of an angle is equal to the adjacent side divided by the hypotenuses.

We can now form some equations:

cosØ = 15/17 (from the top triangle)
cosØ = 8/Y      (from bottom triangle)
Now we know that Y=(8x17)/15 = 136/15

X=64/15  Y=136/15
8 0
2 years ago
The probability is 0.2 that a person shopping at a certain store will spend less than $20. For groups of size 17, find the mean
antiseptic1488 [7]

Steps:

1: p=0.2

2: n = 17

3: n*p= 17*0.2=3.4

Description:

The person will spend less than 20 or o.2 as seen in the question. Meaning p will equal 0.2. P for probability. Now n is for number. n will equal 17. And then we have to times all the number. N times P will equal 17 then times it by 0.2=  Answer will come as 3.4.

Answer: 3.4

The correct answer for this question is 3.4

Please mark brainliest

<em><u>Hope this helps.</u></em>

6 0
3 years ago
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