2 years ago

Please answer thanks

Mathematics

1 answer:

MA_775_DIABLO [31]2 years ago

8 0

7. 21.39
8. 6
those are the only two i know

You might be interested in

If 4 + 6 = 10, does (4 + 6) X 3= 10 X 3? Why or why not?

spayn [35]

Answer: Yes, they equal

Explanation: (4 + 6) x 3 = 30 ; 10 x 3 = 30, 30 = 30

3 0

2 years ago

What is the total surface area

Stels [109]

We have two right triangles and three different rectangles.

The formula of an area of a right triangle:

$A_T=\dfrac{1}{2}l_1l_2$

l₁, l₂ - legs

We have l₁ = 20cm and l₂ = 21cm. Substitute:

$A_T=\dfrac{1}{2}(20)(21)=(10)(21)=210\ cm^2$

The formula of an area of a rectangle:

$A_R=lw$

l - length

w - width

We have:

rectangle #1: l = 22cm, w = 29cm

$A_{R1}=(22)(29)=638\ cm^2$

rectangle #2: l = 22cm, w = 21cm

$A_{R2}=(22)(21)=462\ cm^2$

rectangle #3: l = 22cm, w = 20cm

$A_{R3}=(22)(20)=440\ cm^2$

The total Surface Area of the triangular prism:

$S.A.=2A_T+A_{R1}+A_{R2}+A_{R3}\\\\S.A.=2\cdot210+638+462+440=1960\ cm^2$

3 0

2 years ago

What breaking weight would you predict for a bridge 2.5 layers thick ?

seropon [69]

The correct answer is 15 because if you make a graph you find 2.5 then go up to 15 because the graph would be linear

7 0

2 years ago

Jayla bought a table and some chairs at a furniture store.

anzhelika [568]

Answer:

b. She paid $30 for each chair.

6 0

2 years ago

Read 2 more answers

–125 ÷ –5 = ? A. –23 B. –25 C. 23 D. 25

vovikov84 [41]

Answer:

The answer is 25

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers