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inn [45]
2 years ago
11

I need the answer for both of them I’ll give your Brainly help

Mathematics
2 answers:
Gnoma [55]2 years ago
5 0

Answer:

A and C

Step-by-step explanation:

ExtremeBDS [4]2 years ago
4 0

Answer:

11. a)50      12. a)40

Step-by-step explanation:

sum of  all three angles of  trinagle=180

so

111.

80+50+x=180

130+x=180

x=180-130

x=50

12.

60+90+x=180

150+x=180

x=190-150

x=40

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I didn't get it can you post a picture with it too?

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3 years ago
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Could an average person lift the weight of​ $100 in​ dimes?
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Yes. it would be only about 5 pounds
6 0
3 years ago
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2. Similar pyramids have heights 12 cm and 20 cm. The volume of the larger pyramid is 8192 cm3. Determine each of the following,
Keith_Richards [23]
We know that

[volume of a <span>pyramid]=[area of the base]*h/3

</span><span>a) The scale factor of the smaller pyramid to the larger pyramid in simplest form
</span><span>
12/20----------> 3/5
the answer Part a) is 3/5

</span><span>(b) The ratio of the area of the base of the smaller pyramid to the base of the larger pyramid

[</span>The ratio of the area of the base of the smaller pyramid to the base of the larger pyramid]--------> (3/5)²------> 9/25------> 0.36

[volume of a larger pyramid]=8192 cm³
h=20 cm
so
[8192]=[area of the base larger pyramid]*20/3
[area of the base larger pyramid]=8192*3/20------> 1228.80 cm²<span>

</span>[area of the base smaller pyramid]=(3/5)²*1228.80-----> 442.37 cm²

The ratio of the area of the base of the smaller pyramid to the base of the larger pyramid-----------> 442.37/1228.8--------> 0.36
0.36--------> is equal to (3/5)²

the answer part b) is 0.36  

<span>(c) Ratio of the volume of the smaller pyramid to the larger
</span>
[Ratio of the volume of the smaller pyramid to the larger]=(3/5)³---> 27/125
27/125------> 0.216

the answer Part c) is 0.216

<span>(d) The volume of the smaller pyramid

[</span>The volume of the smaller pyramid]=0.216*8192------> 1769.47 cm³
<span>
the answer part c) is </span>1769.47 cm³<span>



</span>

8 0
3 years ago
Ok help it’s for a grade I will give Brainly if right
pishuonlain [190]

Answer: 15h^2 + 26h -21

Step-by-step explanation:

Use the foil method. Multiply in this order

First, 5h*3h= 15h^2

outer, 5h*7 = 35h

inner, -3*3h= -9h

last, -3*7= -21

Now add them all together

15h^2 + 35h + -9h + -21

Combine like terms

15h^2 + 26h -21

5 0
3 years ago
Solve this system of equations by using the substitution method. y=2x-5 6x+7=y
gogolik [260]

Answer:

x =  - 3 \: and \: y =  - 11

Step-by-step explanation:

L

since \: y = 2x - 5(equation \: 1) \:  \\

substitute \: for \: y \: in  \: equation \: 2 \:  (6x + 7 = y)

6x + 7 = y \\ 6x + 7 = 2x - 5 \\ collect \: like \: terms \\ 6x - 2x =  - 5 - 7 \\ 4x =  - 12 \\ x =  \frac{ - 12}{4}  \\ x =  - 3

substitute \: for \: x  in \: equation \: 1

y = 2x - 5 \\ y = 2( - 3) - 5 \\ y =  - 6 - 5 \\ y =  - 11

7 0
1 year ago
Read 2 more answers
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