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Novay_Z [31]
3 years ago
9

Solve. d + 4 = –1 A. –5 B. –3 C. 3 D. 5

Mathematics
2 answers:
Marina86 [1]3 years ago
8 0
The answer is A. -5 there is a site called Symbolab that solves them for you.
77julia77 [94]3 years ago
7 0
The answer to your question is -5
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Natalie has 28 erasers. She divided some of her erasers equally among 3 friends. Natalie has 10 erasers left. How many erasers d
Korvikt [17]
Hey there! :D

Subtract 10 from 28. 

28-10= 18

Now, divide that by 3. (for her three friends) 

18/3= 6

Each friend got 6 erasers. 

I hope this helps!
~kaikers
8 0
3 years ago
Read 2 more answers
Try to prove the hypothesis from part B that the sum of a rational and an irrational number is an irrational number.
Maurinko [17]

The next step of your proof is to subtract (a/b) from both sides.

Then you get, x = (m/n) - (a/b)

Since rationals are closed over addition, (m/n) + (-a/b) is a rational number.

Therefore, x (an irrational number) = a rational number                            <em>This is a false statement which is a contradiction. So, the assumption was incorrect.</em>

Thus, the sum of a rational and irrational number is an irrational number. QED

8 0
3 years ago
If the tree is 25 feet tall , what is the angle of depression to his friend
Anarel [89]

Answer:

15

Step-by-step explanation:

3 0
3 years ago
A hat contains four balls. The balls are numbered 2, 4, 4, and 7. One ball is randomly selected and
ASHA 777 [7]

Answer:

If the sum is 6, a small cone will be ordered

If the sum is 8 or 9, a medium cone will be ordered.

If the sum is 11, a large cone will be ordered.

Step-by-step explanation:

If the sum is 6, a small cone will be ordered

If the sum is 8 or 9, a medium cone will be ordered.

If the sum is 11, a large cone will be ordered.

The description above accurately explains how a fair decision can be made in this situation. Because the least sum of value = 6

While the highest sum of value of number = 11.

4 0
3 years ago
The additive nverse of a number a is the number that, when added to a, yields zero. Choose 5 ordered pairs whose first component
Vlad [161]

The points I chose and their connection are shown in the attached graph.

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