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White raven [17]
3 years ago
13

What is the measure of ED?

Mathematics
1 answer:
andriy [413]3 years ago
4 0
Using the Pythagorean theorem  you can find ED as:

8^2 + 7^2 = ED^2

64 + 49 = ED^2

113 = ED^2

 ED = sqrt(113)

if you need the decimal format:

ED = 10.63  ( Round the answer as needed)
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Kevin is 3 years older than daniel. Two years ago, Kevin was 4 times as old as Daniel. Let k be Kevin’s age and let d be Daniels
bezimeni [28]

Answer:

Daniel (now) is 3 years old,  (2 years ago) is 1 year old.

Kevin (now) is 6 years old,   (2 years ago) is 4 years old.

Step-by-step explanation:

Now:

-Kevin: k = d + 3

-Daniel: d

2 years ago:

-Kevin: k - 2 = 4(d - 2)

-Daniel: d - 2

We have the equation:

(k - 2) + 2 = k

4(d - 2) + 2 =  d + 3

4d - 8 + 2 = d + 3

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8 0
3 years ago
Part B of 22 how many boys are in the class if there are 30 students
Marysya12 [62]

Answer:

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7 0
3 years ago
Mark wants to buy a PS5 for $499.00. If tax in her local county is 7.75% of the total sale, what is the final cost?
Effectus [21]

Assuming Mark wants to buy a PS5 for $499.00 and the  tax in her local county is 7.75% of the total sale, what will be the final cost is $538

Using this formula

Final cost =Total sales+ (Total sales×Tax)

Let plug in the formula

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Final cost= $537.67

Final cost= $538 (Approximately)

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Learn more here:

brainly.com/question/13040834

7 0
2 years ago
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John is parasailing 350 ft away from the boat that pulls him. suppose he is lifted 400 feet into the air. Find the length of the
ohaa [14]
John
| \
| \
|. \
|. \
(a)400ft
|. \
|. \
|. \(c) length of rope
|. \
|. \
|____________________Boat
350 ft (b)

Pythagorean theorem
a-squared + b-squared = c-squared
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160,000 + 122,500 = c- squared
282,500 = c-squared
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531.5 = c
The length of the rope is 531.5 feet
7 0
3 years ago
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