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ludmilkaskok [199]
4 years ago
10

Solve the equation x2 = 9. A. 3 B. 4.5 C. 18 D. 81

Mathematics
2 answers:
VikaD [51]4 years ago
5 0
The answer is B. 4.5

Rus_ich [418]4 years ago
3 0
Divide both sides by 2 to get x=4.5
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There are 10 men and 14 women in Kathleen’s math class. What is the ratio of women to the total number of students in the class?
kari74 [83]

Answer:

14 to 25

Step-by-step explanation:

there are 14 women and 24 people altogether

5 0
3 years ago
00:00
vaieri [72.5K]

Answer:

(D)What did Micah eat for lunch yesterday?

Step-by-step explanation:

A statistical question is a question for which the expected response varies. That is, we do not expect to get a single answer. Out of the given options,

Option D is not a valid statistical question as the response to the question will always be the same for a particular day,

If Micah ate cheesecakes for lunch yesterday, asking repeated times will not change the response.

6 0
3 years ago
I need help with these problems please
DanielleElmas [232]

Answer:

20=5 because if a =(x+20)° then as my solution b=5

4 0
4 years ago
HELPPPPPP PLEASEEEEE !!!!!
ollegr [7]

Answer:

m∠DBC is 43°

Step-by-step explanation:

Let us solve the question

∵ D is in the interior of ∠ABC

→ That means D divides ∠ABC into two angles ABD and DBC

∴ m∠ABD + m∠DBC = m∠ABC

∵ m∠ABD = (3x + 5)°

∵ m∠DBC = (5x - 7)°

∵ m∠ABC = 78°

→ Substitute them in the equation above

∴ 3x + 5 + 5x - 7 = 78

→ Add the like terms in the left side

∵ (3x + 5x) + (5 + -7) = 78

∴ 8x + -2 = 78

∴ 8x - 2 = 78

→ Add 2 to both sides

∴ 8x -2 + 2 = 78 + 2

∴ 8x = 80

→ Divide both sides by 8

∴ x = 10

→ To find m∠DBC, substitute x by 10 in its measure

∵ m∠DBC = 5(10) - 7

∴ m∠DBC = 50 - 7

∴ m∠DBC = 43°

3 0
3 years ago
Last one I will be awarding BRAINLIEST
madam [21]

Answer:

I think it's the first one.

Step-by-step explanation:

It has to be a negative.

6 0
3 years ago
Read 2 more answers
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