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SSSSS [86.1K]
2 years ago
6

Some1 hurry up and help me plzzz!!!

Mathematics
2 answers:
jekas [21]2 years ago
8 0

Statement D is false, -1 ≠ -(-1) because -1 ≠ 1

sladkih [1.3K]2 years ago
4 0
The answer is D hope this helps
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2
nignag [31]

Answer:

1st = 4×10 ^-9

2nd= 4×10^1

3rd = 4×10^7

4th = 4×10^-5

Step-by-step explanation:

for whole numbers you just have to count from the ending till the number indicated beside the x10

for decimals you count from the front starting at the decimal till you cover the whole number

6 0
10 months ago
Rodrigo buys a jacket that is on sale for 1/4 off of the original price of 80$. he has a coupon for an additional 10% off. how m
NeX [460]

Price after off =80-  1/4 * 80 = 80-20 = $60

Coupon discount = 60*10/100 = $6

So, he have to pay, 60-6 = $54

6 0
3 years ago
Read 2 more answers
Evaluate i^31 please help
Nadya [2.5K]

ANSWER

{i}^{31}  =  - i

EXPLANATION

We want to evaluate

{i}^{31}

Use indices to rewrite the expression as:

=  {i}^{30}  \times i

We know that

{i}^{2}  =  - 1

So we rewrite the expression to obtain;

=  ({ {i}^{2}) }^{15}  \times i

This gives us;

=   {( - 1) }^{15}  \times i

This simplifies to

=  - 1 \times i

=  - i

4 0
3 years ago
State the Rules for Reflection across the x-axis and across the y-axis
prisoha [69]

The rule for reflecting over the X axis is to negate the value of the y-coordinate of each point, but leave the x-value the same. For example, when point P with coordinates (5,4) is reflecting across the X axis and mapped onto point P', the coordinates of P' are (5,-4).

5 0
2 years ago
Read 2 more answers
Marian buys a dress that costs $32.00. She pays 10%
never [62]

Answer:

B, $35.20

Step-by-step explanation:

32 increase 10% =

32 × (1 + 10%) = 32 × (1 + 0.1) = 35.2

4 0
2 years ago
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