3 years ago

Find the value of x.

Mathematics

1 answer:

choli [55]3 years ago

7 0

Answer:

Step-by-step explanation:

By similar triangles, you get

3/BD = BD/7

BD^2 = 21

BD = √21

Now you use Pythagoras to get x

7^2 + BD^2 = x^2

49 + 21 = x^2

60 = x^2

x = √60

7.746

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Answer:

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3 years ago

A square has an area of 289 sq cm. what is the length of one side

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suppose Q is the midpoint of PR. use the information to find the missing value. PQ equals 3x + 14 and QR equals 7X - 10; find X.

NARA [144]

Answer:

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Step-by-step explanation:

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3 years ago

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all shoes are 1/7 off of the original price. how much would a pair of shoes cost that were originally $35.00

yanalaym [24]

Answer:

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Step-by-step explanation:

4 0

3 years ago

There are 70 students in the school band. 40% of them are sixth graders, 20% are seventh graders, and the rest are eighth grader

Anon25 [30]

Answer:

The number of students in the school band = 70

40% of students in the school band are sixth graders.

20% of students in the school band are seventh graders.

We have to find the number of band members that are sixth graders.

The number of sixth graders in school band are:

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Therefore, there are 28 band members that are sixth graders.

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4 years ago