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AlexFokin [52]
3 years ago
10

Toán lớp 8 giải bất phương trình: 2x + 2 > 4

Mathematics
2 answers:
Ghella [55]3 years ago
4 0

Answer:

x>1

I hope it will help you

frutty [35]3 years ago
3 0

Answer:

x>1

Step-by-step explanation:

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A diver at -60 feet stops every 5 feet before reaching the surface. How many stops will the
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The diver will make 12 stops before reaching the surface.
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In a class of students, the following data table summarizes how many students have a cat or a dog. What is the probability that
solniwko [45]

The probability that a student who does not have a dog has a cat is 7/10.

<h3>What is the probability?</h3>

Probability determines the chances that a random event would happen. The odds that the random event would happen lies between 0 and 1.

The probability that a student who does not have a dog has a cat = number of students that do not have a dog but has a cat / total number of students that do not own a dog

=  7/10.

To learn more about probability, please check: brainly.com/question/13234031

#SPJ1

6 0
2 years ago
Question 5 (1 point)
Damm [24]

Answer:

36 and 49

Step-by-step explanation:

Please mark me as brainlyest

5 0
2 years ago
If the discriminant of a quadratic equation is equal to -9, which statement describes the roots?
Mice21 [21]

ANSWER

No real roots.

The roots are complex or imaginary.

EXPLANATION

The quadratic equation

a {x}^{2}  + bx + c = 0

has discriminant,

D =  {b}^{2}  - 4ac

If the discriminant is less than zero , then the quadratic equation has no real roots.

The given discriminant is -9.

Since -9 is less than zero, it means the quadratic equation has complex or imaginary roots.

8 0
3 years ago
Find the difference. Write your answer in simplest form.
cestrela7 [59]

Answer:

Yes you are correct. 9/20 is correct.

Step-by-step explanation:

7 /10   - 1 /4  =  

7 * 2 / 10*2  

1 * 5  / 4 * 5  = 14 /20  -5 /20   =9 /20

8 0
2 years ago
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