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Effectus [21]
3 years ago
11

Can someone help me in question 28 please

Mathematics
1 answer:
AnnyKZ [126]3 years ago
6 0

Answer: You would get 1 for the first section

Step-by-step explanation: you square whatever number is the x then you cube the x.

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Pure acid is to be added to a 10% acid solution to obtain 117 L of a 20% acid solution. What amounts of each should be used?
creativ13 [48]

Answer:

A typical mixture equation

:

x + .10(54-x) = .20(54)

x + 5.4 - .10x = 10.8

x - .1x = 10.8 - 5.4

.9x = 5.4

x = 5.4%2F.9

x = 6 L of pure acid to be combined with: 54-6 = 48 L of 10% solution

Step-by-step explanation:

does this help?

8 0
3 years ago
Please help me i dont understand this lol
krek1111 [17]

Answer:

3

Step-by-step explanation:

Standard derivation is how much the data varies from the mean

class 2 has a lower derivation, the scores vary less from the mean, being closer

6 0
3 years ago
Please answer ASAP!<br><br> The number 650,000 written in scientific notation would be _____.
AfilCa [17]

Answer:

65x10^5

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Leslie earned $12 Friday, $20 Saturday, and $56 Sunday selling bracelets. If she sold each bracelet for the same amount of money
Amanda [17]

Answer:

$4

Step-by-step explanation:

12÷4=3

20÷4=5

56÷4=14

7 0
3 years ago
Write "yes" or "no" to state whether or not the given side lengths would form a right triangle.
Slav-nsk [51]

Answer: No

Step-by-step explanation:

To find out if it is a right triangle then use the formula  a^2 + b^2 = c^2 where a and b are the legs which are the two small sides  and c is the hypotenuse the longest side.  Input the values for  a, b, and c and solve.

a = 12

b = 16

c= 25

12^2 + 16^2 = 25^2

144 + 256 = 625

   400 = 625

This means that it is not a right angle because 400 does not equal to 625.

7 0
3 years ago
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