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love history [14]
3 years ago
5

Evaluate the following expression (-3)^2

Mathematics
1 answer:
Cloud [144]3 years ago
8 0

Answer:

9

Step-by-step explanation:

negative times a negative is a positive. Negative three squared is 9.

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At a university, Todd deposits $100 into his cafeteria account. He spends $5 on dinner every day. Seth deposits $140 into his ac
wolverine [178]

Answer:

The answer is 8 days.

Step-by-step explanation:

By applying the correct equations to Todd and Seth's balances for each day we end up with Todd and Seth having an equal balance in their accounts by day 8, alternatively, we can show that Todd and Seth have the same amount of money in their accounts by day 8 with this table

Day - Todd - Seth

1     -  95     - 130

2    -   90    - 120

3   -    85    -  110

4    -   80    -   100

5    -  75    -   90

6  -    70   -    80

7  -    65    -   70

8 -     60   -    60

7 0
3 years ago
ILL GIVE BRAINLEST, Find the value of x.
natali 33 [55]

Answer:

x=6, y=128

 

set 5x+16 = 7x+4

-2x=-12

x=6

plug x into equation= 46

180-46=134

y+6=134

y=128

3 0
3 years ago
Read 2 more answers
Are these lines perpendicular?<br> yes<br> no
liberstina [14]

Answer:

no

Step-by-step explanation:

perpendicular means that they intersect at a 90° angle

4 0
2 years ago
Will give brainliest i rlly need help
Zepler [3.9K]

Answer:

1/6

Step-by-step explanation:

-3/4 - (-1/2) = - 1/4

-2/3 - 5/6 = - 3/2

-1/4 ÷ -3/2

3 0
2 years ago
You spin the spinner once.
MAVERICK [17]

Answer:

50%

Step-by-step explanation:

The P(even or divisor of 28) = P(even) + P(divisor of 28) - P(even and divisor of 28). The P(even) = 2/4 = 1/2. The P(divisor of 28) = 2/4 = 1/2. The P(even and divisor of 28) = 2/4 = 1/2 as 2,4 are even numbers and divisors of 28.

1/2 + 1/2 - 1/2 = 1/2 = 50%

3 0
2 years ago
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