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dangina [55]
3 years ago
15

Find the value of x. correct answer please

Mathematics
1 answer:
liq [111]3 years ago
5 0

Answer:

x =  \sqrt{30}

Step-by-step explanation:

By Geometric mean property:

BD =  \sqrt{3 \times 7}  \\ BD =  \sqrt{21} \\ by \: pythagoras \: theorem \\  {x}^{2}  =  { (\sqrt{21}) }^{2}  +  {(3)}^{2}  \\  {x}^{2}  = 21 + 9 \\  {x}^{2}  = 30 \\ x =  \sqrt{30}

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Nadusha1986 [10]

Based on the advertisement seen by Dazuri, the cost of each soccer ball is $22.50

<h3>How to find the cost?</h3>

The advertisement says that the original cost of the ball is $30 but there is a 25% discount.

The price of each soccer ball is therefore reduced by the 25% discount on the ball.

The amount that each soccer ball costs is therefore:
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= 30 - 7.5

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Rest of the question is:
Soccer balls on sale at a 25% discount. Prices go back to $30 in a week. Don't miss out.

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4 0
2 years ago
Circle R has equation
Rudiy27

Answer:

The center is (-10,10)  and the radius is 4sqrt(3)

Step-by-step explanation:

(x + 10)^2 + (y - 10)^2 = 48

We can write the equation of a circle as

(x -h)^2 + (y - k)^2 = r^2  where (h,k) is the center and r is the radius

(x-  -10)^2 + (y - 10)^2 = (sqrt(16*3) )^2

(x-  -10)^2 + (y - 10)^2 = (4sqrt(3)) ^2

The center is (-10,10)  and the radius is 4sqrt(3)

5 0
3 years ago
At track practice,Sheila worked on the long jump. Her first jump measured 3 yards, 2 feet, 8 inches. Her second jump measured 2
jolli1 [7]
The length is 19.5 feet. this is because when you add the yards, it equals 15 feet. Next, add 1 + 2 feet from the first and second jump. 10+8 inches equal 1.5 feet. Next, add 15 feet+3 feet+1.5 feet to get 19.5 feet.
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3 years ago
What is the sum of 3(x + 3) and -2(x - 5)?<br> A. X-2<br> B. x-1<br> C. X + 8<br> D. X + 19
Umnica [9.8K]
The answer is actually d lol the idiot above me was right
7 0
3 years ago
Mr. Hamilton surveyed his class to find the total number of hours each of his students slept the previous night. The histogram s
grigory [225]

Answer:

6 more students

Step-by-step explanation:

hope this helps

8 0
3 years ago
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