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Mashcka [7]
3 years ago
12

7n+4n combine the like terms to create an equivalent expression

Mathematics
2 answers:
Anuta_ua [19.1K]3 years ago
8 0

Answer:

11n

Step-by-step explanation:

7n+4n   (factorize out n)

= n (7 + 4)

= n (11)

= 11n

zhannawk [14.2K]3 years ago
8 0

Answer:

11n

Step-by-step explanation:

Combining like terms just means adding together the numbers with the same variable. 7n and 4n both have an n attached, so you would add like normal to get 7n + 4n = 11n.

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Find the area of the figure. use 3.14 for pi
Pepsi [2]

Answer:

38.13 m²

Step-by-step explanation:


area of triangle = 1/2 base × height

                          = 1/2 × 4 × 3

                          = 6 m²


Area of rectangle = length ×  width

                             = 6 × 3

                             = 18m²


Area of semi circle = 180/360 × π × radius²

                               = 180/360 × 3.14 × 3²

                               = 14.13 m²


Add all the areas together


6 + 18 + 14.13 = 38.13

8 0
2 years ago
Diagram shows an irregular hexagon PQRSTU.Fine the value of X + Y=
Lynna [10]
To find the value of x+y, we will first find the sum of all the interior angles of the hexagon.The sum of the interior angles in a hexagon is always equal to 720 degrees.

All the angles in the diagram are in terms of x or y except for angle t. However, we know that the corresponding exterior angle is 30 degrees. The sum of angle t and 30 is 360. We can solve this in an algebraic equation.

t+30=360
Subtract 30 from both sides
t = 330

Now, we can solve for the values of x+y. We can set this up in another algebraic equation.

x+x+x+2y+y+30=720

Combine like terms:
3x+3y+30 = 720

Subtract 30 from both sides:
3x+3y = 690

Divide both sides by 3:
\frac{3x + 3y}{3} =  \frac{690}{3}
x+y = 230

The sum of x and y is 230.
6 0
4 years ago
What else would need to be congruent to show that ABC DEF by ASA?
babunello [35]
The answer is C (APEX)
7 0
4 years ago
Read 2 more answers
8. What is m&lt;1<br> 77<br> 1<br> 56<br> A 103°<br> | C 133°<br> C °<br> D 124°<br> B 47°
saveliy_v [14]

Answer:

Option C

Step-by-step explanation:

Exteriore angle property: Exterior angle equals the sum of opposite interior angles.

∠I = 77° + 56°

    = 133°

5 0
3 years ago
The surveyor sets up the instrument to determine the height at the highest point on the hill. She determines that she is standin
Ne4ueva [31]

Answer:

(a)\ h = d * \tan(\theta)

(b)\ h = 30.57m

Step-by-step explanation:

Given

\theta = 17^o

d =100m

h = ??

See attachment for illustration

Solving (a): Trigonometry ratio to calculate h.

From the attachment, we have:

\tan(\theta) = \frac{h}{d}

Multiply both sides by d

d * \tan(\theta) = \frac{h}{d} * d

d * \tan(\theta) = h

Rewrite as:

h = d * \tan(\theta)

Solving (b): The value of h

We have:

\theta = 17^o

d =100m

So:

h = 100m * \tan(17^o)

h = 100m * 0.3057

h = 30.57m

8 0
3 years ago
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