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Liono4ka [1.6K]
3 years ago
13

PLEASE HELP I AM BEGGING YOU!!! I WILL GIVE BRAINLIEST AND EXTRA POINTS PLEASEEEEEEEEEEEEEEEEEE!!!!!!!

Mathematics
1 answer:
san4es73 [151]3 years ago
4 0

Answer:

1. 31

2. -40

3. 28.5

4. 75

5. 6

6. -24

7. -34

8. 68

9. 8

10. 26

Step-by-step explanation:

I tried to do the best I can I hope this helps! :))

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Rosalyn and Naomi left their homes, which are
frez [133]

Answer:

60 mph

Step-by-step explanation:

(R-10)*3 + R*3 = 330

R=60

7 0
2 years ago
5^2+12^2=13^2. <br> Find the answer
Julli [10]

Answer:

25+144 = 169

Step-by-step explanation:

7 0
3 years ago
Sarah hired a painter to paint her bedroom walls and ceiling. Each of the four bedroom walls is 18 ft. Long and 8 ft. High. Two
Dovator [93]

Answer:

The estimate is not correct?

Step-by-step explanation:

Given data

Area of wall = 18*8

=144ft^2

=4*144

=576ft^2

Area of doors

=3*7

=21ft^2

=2*21

=42ft^2

Area of window

=3*5

=15ft^2

Hence the total surface area of the room

=576-42-15

=519ft^2

The amount of paint needed= 519/300= 1.73

Approximately 2 gallons

We are told that 1 gallon will cover 300ft^2

Hence 3 gallons will cover 300*3= 900ft^2

Therefore the painter overestimated the amount of paint needed

As 2 gallons will do the job

6 0
2 years ago
Which domain restrictions apply to this rational expression? x2 4x 4x2−4 select each correct answer.
rosijanka [135]

Because domain restrictions apply to this rational expression, x cannot be equal to {-2, 2}.

<h3>What is domain?</h3>

Domain restrictions are any points in the domain where the function will not have a value. This basically means that there is a point in the function where x will not work.

For the numerator, any value of x will suffice. We can have a value of 0 in the numerator, or a positive, negative, or decimal number.

However, the denominator cannot be equal to zero. This is due to the fact that a fraction bar represents division, and we cannot divide by zero.

Here,

x²-4=0

Add 4 to both sides:

x²-4+4 = 0+4

x² = 4

Take the square root of both sides:

√x² = √4

x = 2 or x = -2

The x cannot be equal to {-2, 2} as domain restrictions apply to this rational expression.

To know more about domain,

brainly.com/question/10238709

#SPJ4

7 0
1 year ago
Can someone help me please
Ilya [14]

Answer:

32

Step-by-step explanation:

Side AD = 4

9-5=4

Side DC = 13

a^2+b^2=c^2

5^2+12^2=c^2

25+144=c^2

169=c^2

13=c

Side AC = 15

a^2+b^2=c^2

9^2+12^2=c^2

81+144=c^2

225=c^2

15=c

6 0
2 years ago
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