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viva [34]
3 years ago
10

Help me please If you help me I would appreciate it a lot

Mathematics
1 answer:
kobusy [5.1K]3 years ago
6 0
Here are all the answers ( I carefully solved each).

7. 4(8)-2(3)= 26

8. (3/4) (8) (6) ÷ 3= 12

9. 2 (3/4) (6) + 8= 17

10. 6 (1/2) + 8 (3/4)= 9

17. 5(6) + 8(1/2)= 34

18. 2 ( 3×8+6) ÷ ( 10*3)= 2

19. (8+6) ÷ 1/2= 7

20. 3(6) - 2(8)= 2

Please vote my answer brainliest. thanks!
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Solve 6x(6x) + 11x - 35 = 0
Murljashka [212]
36x^2 + 11x - 35=0\\\\ \frac{-b \pm  \sqrt{ b^2 -4( a)(c)} }{2(a)}\\\\  \frac{-11\pm  \sqrt{11^2 -4(36)(-35)} }{2(36)}\\ \\   \frac{-11\pm  \sqrt{5161 } }{72}\\\\\\ x = 0.8450013919812116\\\\ \text{   } x  = -1.1505569475367672
4 0
2 years ago
Read 2 more answers
Samples of skin experiencing desquamation are analyzed for both moisture and melanin content. The results from 100 skin samples
zheka24 [161]

Answer: a. 0.40   b. 0.23  c . 0.435   d . 0.25

Step-by-step explanation:

                                   melanin      content    Total

                                            high   low

moisture   high                     13      10                23

content    low                       47      30                77

 Total                                   60      40              <u> </u><u>100</u>

Let A denote the event that a sample has low melanin content, and let B denote the event that a sample has high moisture content.

a) Total skin samples has low melanin content = 10+30=40

P(A)=\dfrac{40}{100}=0.40

b) Total skin samples has high moisture content = 13+10=23

P(B) =\dfrac{23}{100}=0.23

c) A ∩ B =  Total skin samples has both low melanin content and high moisture content =10

P(A ∩ B) =\dfrac{10}{100}=0.10

Using conditional probability formula , P (A|B)=\dfrac{P(A\cap B)}{P(B)}

P (A|B)=\dfrac{0.10}{0.23}=0.434782608696\approx0.435

d)  P (B|A)=\dfrac{P(A\cap B)}{P(A)}

P (B|A)=\dfrac{0.10}{0.40}=0.25

8 0
3 years ago
12, 15, 10, 15, 11, 12, 15.
malfutka [58]

Answer:

1. ≈ 12.85

2. 15

3. -38

4. 41 miles

5. 88

Step-by-step explanation:

3 0
3 years ago
Chris has $120 to spend at the bookstore. Chris buys a hardcover book for $36, as well as some gift cards for his family and fri
Wittaler [7]

Answer:

120-36=84

84/15=5 with $9 left

120=36-15x

6 0
3 years ago
Let x equal the age, in human years, for a dog that is 2 years old or older. For each of your chosen breeds, write an expression
timofeeve [1]
For the answer to the question above asking to<span> write an expression to model its age in dog years</span><span> for a dog that is 2 years old or older. If x is equal to human age 
then the dog is 2 years older
X = human years
x + 2 =  is for the dog age

</span>
7 0
3 years ago
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