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Rashid [163]
3 years ago
11

Which choices are equivalent to the expression below check all that apply √-4

Mathematics
1 answer:
Crazy boy [7]3 years ago
8 0

Answer:

You can't get a square root of any number that has a negative sign on the inside of the radical

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What is $6.25 marked up 25%
Marta_Voda [28]

Answer:

$6.25 marked up 25% is $7.81

Step-by-step explanation:

First, you have to find what 25% is of 6.25.

Step 1: Our output value is 25.

Step 2: We represent the unknown value with x.

Step 3: From step 1 above, 25=100%.

Step 4: Similarly, x=6.25%.

Step 5: This results in a pair of simple equations:

25=100%(1)

x=6.25%(2)

Step 6: By dividing equation 1 by equation 2 and noting that both the RHS (right hand side) of both

equations have the same unit (%); we have

<u>25 </u> =   <u>100</u>

 x       6.25

Step 7: Again, the reciprocal of both sides gives

<u> x </u> =  <u>6.25</u>

25     100

x= 1.5625

x≈ 1.56

Once you've known what 25% is, you add it to 6.25.

1.56+6.25= 7.81

7 0
3 years ago
A(b)(-c), for a=7, b = -2, c= 15
-Dominant- [34]
You just have to plug in the numbers and solve
7(-2)(-15)
7(30)
210


4 0
3 years ago
Read 2 more answers
The vertices of triangle ABC are A(−5, 1), B(−2.5, 7), and C(0, 1). Find the new coordinates of the vertices after the given tra
morpeh [17]

Answer:

(2,0) (0.5,6) (3,0)

Step-by-step explanation:

u know how it's done

4 0
3 years ago
Find the square of ( b - 9 )
Kruka [31]

Answer:

{b}^{2}  - 18b + 81

Step-by-step explanation:

{(b - 9)}^{2}  =  {b}^{2}  - 2 \times b \times 9 +  {(9)}^{2}  \\  =  {b}^{2}    - 18b + 81

6 0
3 years ago
You are trying to hack into your mom's computer. You know your password is 4 letters and then a number but you can not remember
podryga [215]
The amount of passwords you can guess are 4,569,760. 
 How this is found is by multiplying the amount of numbers in the alphabet by itself 4 times, then multiplying by the amount of 1 digit numbers there are, so multiply by 10, it is ten because you can have the number as 1 2 3 4 5 6 7 8 9 or 0, and then the number you get is your answer. Hope this helped! ^_^
7 0
3 years ago
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