3 years ago

Find the length of the hypotenuse of a right triangle whose legs have lengths 4 and 8

1 answer:

6 0

Ya gotta use the Pythagorean theorem :)

a² + b² = c² (reminder: c is the hypotenuse)

4² + 8² = c²

16 + 64 = 80

√80 = 8.94

H = 8.94

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Eight times a number increased by 9 exceeds 7 times the number by 15. Find the number.

Alborosie

Turn it into math terms bit by bit. let x be "a number"

8 times a number is 8×x

increased by 9 is +9

7 times a number is 7×x

exceeds is minus

by 15 is =15

now we put it together.

$8 \times x + 9 - 7 \times x = 15$
solve
$8x + 9 - 7x = 15 \\ x + 9 = 15 \\ x = 6$

5 0

3 years ago

Read 2 more answers

Find the volume of the pyramid

qaws [65]

Answer:

494 cubic meteres

Step-by-step explanation:

formula: lwh/3

(12 x 13 x 9 1/2) divided by 3= 4 x 13 x 19/2 = 52 x 19/2 = 26 x 19 = 494cubic metres

6 0

3 years ago