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Rainbow [258]
4 years ago
6

CAN SOMEONE PLEASE HELP ME

Mathematics
1 answer:
Hoochie [10]4 years ago
8 0
8) C
9) A
10) B
11) C
Hope i could help
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Solve by factoring x^2 + 8x =9
Helen [10]

Answer:

x=-9,\:x=1

Step-by-step explanation:

x^2+8x=9\\x^2+8x-9=0\\(x+9)(x-1)=0\\x=-9,\:x=1

6 0
2 years ago
I need help with number 4 plz answer it​
Nataly_w [17]
Answer is 10 c brianliest is appreciated
3 0
3 years ago
Xiao Ming is now 15 years
insens350 [35]

Answer:

16

Step-by-step explanation:

father's age=46

half of father's age=46/2=23

Xiao's age=15

so when Xiao is half of her father age =23-15=8

then add 8 to his sister's age

so 8+8=16

hope its was helpful<3<3

plz rate the answer

4 0
4 years ago
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A three legged stool will not rock, even if the legs are of differnt lengths. Many four legged stools wobble. Explain
Phantasy [73]
Because it is like a plane. In order to have a plane, there must be at least 3 points. In a chair with three legs, the legs are all in the same plane. 
7 0
4 years ago
Read 2 more answers
We can find the length of DE using the Pythagorean Theorem:
prohojiy [21]
What's the difference between A) and C)??
There should be an E) because the correct answer would be in either of these forms:
{DE}^{2}  =  {(4 - 1)}^{2}  +  {(1 - 3)}^{2}  \:  \: or \\  DE  =  \sqrt{( {3}^{2}  +  {2}^{2} )} \:   \: or \\  {DE}^{2}  =  {(4 - 1)}^{2} +  {(3 - 1)}^{2}
6 0
3 years ago
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