3 years ago

Help plz with question

Mathematics

1 answer:

Arte-miy333 [17]3 years ago

8 0

It would be 121 hejsjskbshekanzbsjaka

You might be interested in

I need help fast please

marta [7]

Step-by-step explanation:

(-)(-) = +

$- \frac{3}{5} + \frac{5}{9}$

$- \frac{27}{45} + \frac{25}{45}$

$- \frac{2}{45}$

8 0

3 years ago

Someone help!! 20 points to whoever can help me with this problem and give me the correct reasoning

MrMuchimi

Answer:

Step-by-step explanation:

180-(60+40)=180-60-40=180-100=80

4 0

3 years ago

Read 2 more answers

SURFACE AREAS - PYRAMIDS?

Bond [772]

The total surface area consists of the base area and the surface area (the area of all lateral faces). The base is a hexagon with side a=3 cm.

$A_{hexagon}=6A_{triangle}=6\cdot \dfrac{1}{2} \cdot \dfrac{a^2\sqrt{3}}{4} =\dfrac{3}{4} \cdot 3^2\cdot \sqrt{3}=\dfrac{27\sqrt{3}}{4}$ sq. cm.

Each lateral face is an isosceles triangle with height h=12 cm and base a=3 cm. The area of one such lateral triangle is

$A_{lateral}=\dfrac{1}{2}\cdot h\cdot a= \dfrac{1}{2}\cdot 12\cdot 3=18$ sq. cm.

Then the total surface area is:

$A_{total}= \dfrac{27\sqrt{3}}{4} +6\cdot 18=\dfrac{27\sqrt{3}}{4} +108=11.7+108=119.7$ sq. cm.

Answer: 119.7 sq. cm.

7 0

4 years ago

Find the composite of the solid figure

sweet-ann [11.9K]

Times them all :) and that's your answer

3 0

4 years ago

Read 2 more answers

Surface area of a cube

Lynna [10]

Answer:

i think think a square would have 6 as a surface area

Step-by-step explanation:

soryr if im wrong

3 0

3 years ago