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3 years ago

Simplify. (x6y5)(5xy2)(−6x4)

Mathematics

1 answer:

galben [10]3 years ago

7 0

Answer:

b is apparently the right one XD

Step-by-step explanation:You said is was

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find the area of a triangular shaped land having the length of three sides 20,34 M and 42 respectively in metre square Anna and

matrenka [14]

Step-by-step explanation:

if I understand you correctly, then the 3 sides are

a = 20 m

b = 34 m

c = 42 m

under this assumption the best is to use Heron's Formula to get the area :

s = (a + b + c)/2

area = sqrt(s(s - a)(s - b)(s - c))

in our case

s = (20 + 34 + 42)/2 = 96/2 = 48

area = sqrt(48(48-20)(48-34)(48-42)) =

= sqrt(48×28×14×6) = sqrt(112,896) =

= 336 m²

8 0

2 years ago

Read 2 more answers

1. The prism-shaped roof has equilateral triangular bases. Create an equation that models the height of one of the roof's triang

lana66690 [7]

Answer:

$h=\frac{\sqrt{3}}{2}b\ units$

Step-by-step explanation:

we know that

An equilateral triangle has three equal sides and three equal interior angles (the measure of each interior angle is equal to 60 degrees)

see the attached figure to better understand tyhe problem

Let

h ----> the height of an equilateral triangle

b ---> the length side of an equilateral triangle

In the right triangle ABD

Applying the Pythagorean Theorem

$AB^2=AD^2+BD^2$

substitute the given values

$b^2=(\frac{b}{2})^2+h^2$

$b^2=\frac{b^2}{4}+h^2$

$h^2=b^2-\frac{b^2}{4}$

$h^2=\frac{3}{4}b^2$

square root both sides

$h=\frac{\sqrt{3}}{2}b\ units$

7 0

3 years ago

-3x + 7 - 5x < 15 true

Helen [10]

Answer:

x>-1

Step-by-step explanation:

5 0

3 years ago

A student finished 8 of her homework problems in class. If the ratio of problems she finished to problems she still had left was

Arlecino [84]

4:1
Multiply each side by 2 to make the left side 8:
8:2

8+2=10
She had a total of 10 homework problems.

Hope this helps :)

7 0

4 years ago

Please Help 45 Points

enot [183]

Answer:

Step-by-step explanation:

it's either a or c hoped i helped

6 0

3 years ago