3 years ago

Please help!!!!!!!!me

Mathematics

1 answer:

vovangra [49]3 years ago

3 0

Answer:

]

Step-by-step exYYplanation:

UIUHUY

You might be interested in

Find the area of the polygon.

zalisa [80]

Answer:

$A=128\ cm^2$

Step-by-step explanation:

we know that

The area of the polygon is equal to the area of a square plus the area of four congruent triangles

$A=b^2+4[\frac{1}{2}(b)(h)]$

where

$b=8\ cm\\h=4\ cm$

substitute

$A=8^2+4[\frac{1}{2}(8)(4)]$

$A=64+64=128\ cm^2$

4 0

3 years ago

A large envelope is 0.085 cm thick. How thick would a stack of 100 of these envelopes be? Explain your reasoning.

Pavlova-9 [17]

Answer:

8.5 cm

Step-by-step explanation:

I think because wouldn't you take the 0.085 · 100

(get mad if I'm wrong i might be)

3 0

2 years ago

Even if I have use bidmas I'm still confuse with this equation (-7i)(2+i)+(2i)(-7i)

zheka24 [161]

Assuming "i" is an imaginary unit:
$(-7i)(2+i)+(2i)(-7i)=\\
-14i+7+14=\\
21-14i$

5 0

3 years ago

Find the measure of 0. (To the nearest tenth) A) 28.8 B) 33.4 C) 61.2 D) 63.4

Wewaii [24]

Answer:

Step-by-step explanation:

Hope this helps

4 0

2 years ago

Qhich are the solutions of the quadratic equation x^2=9x+6

Lera25 [3.4K]

x^2-9x-6=0

Use the quadratic formula to get (9+sqrt(105))/2 or (9-sqrt(105))/2

3 0

3 years ago