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2 years ago

PLEASE HELP

Mathematics

2 answers:

Olin [163]2 years ago

4 0

Answer:

8.9443

Step-by-step explanation:

a^2+b^2= c^2

4^2+8^2= c^2

16+64= c^2

c^2= 80

Take sqrt / un-square

Kruka [31]2 years ago

3 0

Answer:

the squared root of 80 or 4 times the square root of 5.

Step-by-step explanation:

Hope this helps!

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Find the surface area of a right square pyramid with base edge length 2 feet and height 5 feet.

zhenek [66]

Answer:

24.4 sq. ft.

Step-by-step explanation:

Area of a right square pyramid is:

A = a^2 + 2(a)*square root of ((a^2/4) + b^2)

A = 4 + 4 (square root of ((4/4) + 25) = 4 + 4* square root of 26

A = 4 + 4*5.099

A = 4 + 20.396

A = 24.396 sq ft.

7 0

2 years ago

The length of the base of a triangle is twice its height. if the area of the triangle is 44 square kilometers, find the height

xeze [42]

Let
$x$
be the height of the triangle.

Formular for area of Triangle
= ½ × base × height

thus,
${ \frac{1}{2} }(2x)(x)=44\ kilometers^2$

Simplifying
$x^2=44\ kilometers^2 \\\\ x= \sqrt{ 44 } \\\\ x=6.63\ kilometers$

3 0

2 years ago

Which mixed number shows the result of 89 divided by 35 ?

Simora [160]

Answer:

$2 \times \frac{19}{35} \\ 2 \frac{19}{35}$

6 0

2 years ago

Evaluate the difference between 5.1 and 1.8

Crank

Step-by-step explanation:

to evaluate the difference between them so,

subtract 1.8 by 5.1

so,

5.1 - 1.8 = 3.3

so difference between them is 3.3

hope this answer helps you dear..take care and may u have a great day ahead!

5 0

2 years ago

Read 2 more answers

Find the area of a triangle whose sides are 5 m, 6 m and 9m,( use root 2 =-1.41 m)

dlinn [17]

The area of the triangle is 14.1 square meters

<h3>How to determine the triangle area?</h3>

The side lengths are given as:

5m, 6m and 9m

Calculate the semi-perimeter (s) using

s = (5 + 6 + 9)/2

Evaluate

s = 10

The area is then calculated as:

$Area = \sqrt{s(s -a)(s-b)(s-c)$

This gives

$Area = \sqrt{10 * (10 -5)(10-6)(10-9)$

Evaluate the products

$Area = \sqrt{200$

Evaluate the exponent

Area = 14.1

Hence, the area of the triangle is 14.1 square meters

*PLEASE HELP*

PLEASE HELP