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ira [324]
3 years ago
6

10. Which of the following statements are TRUE?

Mathematics
1 answer:
Masja [62]3 years ago
4 0

Answer:

A, C, D

Step-by-step explanation:

1) A triangular pyramid has the same number of faces as vertices: 5

2) C - The sum is 5 + 6 =11

3) D - Euler's Formula tells us that if we add the number of faces and vertices together and then subtract the number of edges, we will get 2 as our answer.

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ch4aika [34]
<h2>D. If subjects knew they were receiving an active treatment, researchers would not have known if any improvement was due to the new medication or to the expectation of <u>feeling </u>better. If the researchers knew which subjects received which treatments, they might have treated one group of subjects differently from the other group.</h2><h2 />

For your question... the answer would be D

7 0
2 years ago
Joseph has $32.40. he wants to buy several comic books that each cost 2.70. how many comic books can he buy?
Arte-miy333 [17]
Joseph can buy 12 comic books with $32.40.
8 0
3 years ago
Calculate the length b to two decimal places.
Andrej [43]

Answer:

B. 21.64

Step-by-step explanation:        

We have been given a triangle and we are asked to find the length of AC (b).

We will use law of cosines to find the length of side AC.

c^{2}=a^{2}+b^{2}-2ab \text{ cos }\theta

Upon substituting our given values in the formula we will get,

(AC)^{2}=15^{2}+12^{2}-2\times 15\times 12 \text{ cos}(106)  

(AC)^{2}=225+144-360\text{ cos}(106)      

(AC)^{2}=369-360(-0.275637355817)      

(AC)^{2}=369+99.22944809412    

(AC)^{2}=468.22944809412

Upon taking square root of both sides of our equation we will be get,

AC=\sqrt{468.22944809412}

AC=21.6386101238993629\approx 21.64  

Therefore, the length of b is 21.64 and option B is the correct choice.

6 0
3 years ago
How to multiply 18 3/8 x 1/4
user100 [1]
Decimal Form: 
4.59375<span> 
</span>
Exact Form:     
<span>147/32</span><span> 

</span>Mixed Number Form: <span>4 19/32</span>
4 0
3 years ago
Melanie invested $9,800 in an account paying an interest rate of 4 1 2 4 2 1 ​ % compounded quarterly. Amelia invested $9,800 in
Gnom [1K]

Step-by-step explanation:

yifhkdtjayixyrsyisjdyjdrtdgjz

5 0
3 years ago
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