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Kay [80]
3 years ago
15

Solve for x if 7x =21 a. X=-3 b.x=14 c. =3 d. X= -14

Mathematics
1 answer:
vaieri [72.5K]3 years ago
5 0
I hope this helps you



7x÷7=21÷7



x=3
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Help will mark brainliest answer
Naddika [18.5K]

Answer : 110 degree

To find angle 1 , we apply outside angle theorem  Lets name each point  Measurement of arc EF=280 degrees  

Measurement of arc GH = 60

Angle D = angle 1

Please refer to the theorem attached below  

angle D = \frac{arc(EF)-arc(GH)}{2}

Now we plug in the values

angle 1 = \frac{280-60}{2}

angle 1 = 110

Measurement of angle 1 = 110 degrees

5 0
3 years ago
State whether the following number is divisible by 2,5, or 10. 215
adoni [48]

Answer

215 can only be divided by 5

4 0
3 years ago
In triangle ABC, a = 18.2, ∠B = 62°, and ∠C = 48°. Find b
Pavlova-9 [17]
I believe b is about 16.3, hope this helps
4 0
3 years ago
What is the value of 34 square
Oksi-84 [34.3K]

Question

What is the value of 34²

Answer:

1156

Step-by-step explanation:

just multiply 34 * 34 = 1156


5 0
3 years ago
Sammy counts the number of people in one section of the school auditorium. He counts 18 female students, 16 male students, and 6
Rzqust [24]

Correct Question:

He counts 18 female students, 16 male students, and 6 teachers. There are

720 people in the auditorium. Consider the probability of selecting one person

at random from the auditorium.

Which of these statements are true?

Choose all that apply.

A:  The probability of selecting a teacher is 6%.

B : The probability of selecting a student is 85%.

C : The probability of selecting a male student is 32%.

D : The probability of selecting a female student is 45%.

Step-by-step explanation:

Option B  and D are correct because

The total number of people in one cross section = 18 + 16 + 6 = 40.

A = The probability of selecting a teacher is = (6/40)x100 = 15 % not equal to 6 %

B = The probability of selecting a male student is = (34/40)x100 = 85%

C = The probability of selecting a male student is = (16/40)x100 = 40 % not equal to 32 %

D : The probability of selecting a female student is = (18/40)x100= 45%

3 0
3 years ago
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