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Rasek [7]
3 years ago
5

Pls help me find the operations of 3a^2+4a^2+7a^2​

Mathematics
2 answers:
Ber [7]3 years ago
7 0

Answer:

14a^2

Step-by-step explanation:

3a^2+4a^2+7a^2

Combine like terms

Factor out a^2

a^2(3+4+7)

a^2(14)

14a^2

Maru [420]3 years ago
4 0

Answer:

14 a²

Step-by-step explanation:

3a² + 4a² + 7a²

collect like terms

(3 + 4 + 7)a² .. ( factor out :- a²)

calculate the sum

14 a²

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Sorry again but i'm having trouble on this one
Lisa [10]

Answer:

m∠PNO = 60°

m∠O = 33°

Step-by-step explanation:

∡NPO is 87° because it's a vertical angle with the 87° angle

3) ∡PNO is supplementary to the 120° angle (they must add to 180°)

4) m∠O = 180 - (60 + 87) = 33

5 0
3 years ago
Please look at the attached image. Really need Help!! Who ever find answer first will get brainily.
nadya68 [22]

Answer:

27°

Step-by-step explanation:

XWY and VWY are supplementary

∴ XWY + VWY = 180°

∴ XWY = 180° - VWY

XYW and ZYW are supplementary

∴ XYW + ZYW = 180°

∴ XYW = 180° - ZYW

ΔXWY is a right triangle at X

∴ XWY + XYW = 90°

∴ 180° - VWY + 180° - ZYW = 90°

∴ 180° - 6x + 180° - 4x = 90°

∴ 360° - 10x = 90°

∴ 10x = 270°

∴ x = 27°

7 0
2 years ago
Read 2 more answers
The mean ages with standard deviations of four swim teams at a swim club are given below.
xz_007 [3.2K]

Answer:

Statement 2 (The ages of the Stars are the most dispersed from the team’s mean).

Step-by-step explanation:

Standard deviation is one way to measure the average of the data by determining the spread of the data. It actually explains how much the observation points are further away from the mean of the data. Higher the standard deviation, higher the spread of the data and higher is the uncertainty. This means that the team with the highest standard deviation will have the most dispersion. In this case, the standard deviation of 4.1 is the largest number, therefore, the statement "The ages of the Stars are the most dispersed from the team’s mean." is true i.e. the option 2!!!

7 0
3 years ago
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mixer [17]

Answer:

Alright well use the Graph line using the slope and the y-intercept, or two points

Slope: - 1

y - intercept: - 2

X: 0, 1

Y: - 2, - 3 Hope this helps :)

Step-by-step explanation:


3 0
3 years ago
Select the correct answer. What is the solution to this equation? -10 + (x) = -4 A. x = -9 or x = 4 B. X = 9 or x = 21 c. x=-9 o
Bogdan [553]

Answer:

The solution isn't listed

Step-by-step explanation:

x = 6 because you add -10 to -4 and you get 6

7 0
3 years ago
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