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natulia [17]
3 years ago
12

HURRYYYYYYY

Mathematics
2 answers:
sladkih [1.3K]3 years ago
8 0
D both 3 and 4 I just copied the person in front of me sorry
Monica [59]3 years ago
6 0

Answer:

D

Step-by-step explanation:

the answer is D: Both 3 and 4

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3.2 - 11(2y + 1) + 4
Mekhanik [1.2K]

Answer:

-3.8-22y

Step-by-step explanation:

3.2-11(2y+1)+4

-11×2y=-22y

-11×1=-11

3.2-22y-11+4

3.2-11+4=-3.8

-3.8-22y

7 0
3 years ago
Need help with tree diagrams
oksian1 [2.3K]
There is a 50% chance.


Explanation:

There is always a 50-50 chance that the coin will land on either heads or tails.
6 0
2 years ago
The average of students is 15 years if the age of a teacher is included their average becomes 18 years .what is the age of the t
xxTIMURxx [149]

Answer:

21; the age of the teacher

Step-by-step explanation:

15+x/2=18

Estimate - I estimated in the 20's because it only averaged up a little bit

Started with 23 and kept going until i got to my answer

21

15+21/2

36/2

18

Please mark brainliest :)

8 0
2 years ago
Read 2 more answers
In the diagram below, AC and CB, AB and CD, and m(angle)A=33 degrees. Find M(angle)B
hoa [83]

Answer:

15°.

Step-by-step explanation:

1. Angles ADC and CDB are supplementary, thus

m∠ADC+m∠CDB=180°.

Since m∠ADC=115°, you have that m∠CDB=180°-115°=65°.

2. Triangle BCD is isosceles triangle, because it has two congruent sides CB and CD. The base of this triangle is segment BD. Angles that are adjacent to the base of isosceles triangle are congruent, then

m∠CDB=m∠CBD=65°.

The sum of the measures of interior angles of triangle is 180°, therefore,

m∠CDB+m∠CBD+m∠BCD=180° and

m∠BCD=180°-65°-65°=50°.

3. Triangle ABC is isosceles, with base BC. Then

m∠ABC=m∠ACB.

From the previous you have that m∠ABC=65° (angle ABC is exactly angle CBD). So

m∠ACB=65°.

4. Angles BCD and DCA together form angle ACB. This gives you

m∠ACB=m∠ACD+m∠BCD,

m∠ACD=65°-50°=15°.

Have a good Day!

7 0
2 years ago
What is the value of -2[3-11] divided by 3
faust18 [17]
I need this answer too
5 0
3 years ago
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