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Marina86 [1]
2 years ago
14

True or false: Most proofs in geometry are called direct proofs because theorems and postulates are used to prove a statement us

ing a direct approach
Mathematics
1 answer:
vivado [14]2 years ago
5 0

Answer:

The statement is true

Step-by-step explanation:

Most proofs are direct proofs becaue theorums & postulates prove them true straightforwardly :)

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Please help and thank you
Gekata [30.6K]

Answer:

A. 11\frac{5}{8}\textrm{ inches}

Step-by-step explanation:

Given:

The regular polygon is a decagon having 10 sides.

Perimeter of the given polygon is,

P=116\frac{1}{4}\textrm{ inches}=116.25\textrm{ inches}.

We know that, perimeter of a regular polygon of n sides is given as,

P=na where, a is the length of each side.

Here, n=10,P=116\frac{1}{4}\textrm{ in}

Plug in these values and solve for a. This gives,

P=na\\116\frac{1}{4}=10a\\116.25=10a\\a=\frac{116.25}{10}=11.625=11+\frac{625}{1000}=11+\frac{5}{8}=11\frac{5}{8}\textrm{ in}

Therefore, the side length of the given polygon is 11\frac{5}{8}\textrm{ inches}

3 0
2 years ago
A shop has a 3 for 2 offer on chocolate bars The normal price of a chocolate bar is 72p Sian gets 3 chocolate bars from the shop
Agata [3.3K]

Answer:

1.44 pounds

Step-by-step explanation:

From the above question, we are told that:

The shop has 3 for 2 offer on chocolate bars going on .This means a customer can buy 2 chocolates get 1 free, for the price of 2 chocolates, a customer can get 3 chocolates.

If the price of 1 chocolate bar = 72p

2 chocolate bars =

72p × 2

= 144p

Hence, Sian spends 144p

We are asked to convert our answer to pounds

The symbol p represent pence in money form

Hence,

100p(pence) = 1 pound

144p(pence) = x

100p × x = 144p × 1

x = 144p/100p

x = 1.44 pounds

Therefore, Sian spends 1.44 pounds

7 0
3 years ago
Solve using the quadratic formula. Select the correct solution.<br> -7x=2x^2+9
gayaneshka [121]

The answer to your question is B!

Have a wonderful day.

7 0
3 years ago
1/3 divided by 1/8<br> a, 1/24<br> b. 3/8<br> C. 2 and 2/3<br> d. 24
Degger [83]
The answer is B. 3/8
5 0
2 years ago
Read 2 more answers
Charlie's weight is nine kilograms greater than his brother's. Together they weigh 99 kilograms. Let x represent the weight of t
spayn [35]
C=x+9, c+x=99, c=99-x

So we have two equations equal to c, c=x+9 and c=99-x, since c=c:

x+9=99-x

2x+9=99

2x=90

x=45, and since c=x+9, c=54

So Charlie weighs 54 kg and his brother weighs 45 kg.
4 0
3 years ago
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