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snow_lady [41]
3 years ago
12

What is the equivalent expressions 7+7+7

Mathematics
2 answers:
wolverine [178]3 years ago
7 0
3*7= 7+7+7=21

Answer:
Seven multiplied by 3 would be equivalent to the sum of the addition of 7 three times.

Is this what you were looking for?
Fudgin [204]3 years ago
5 0
7(3) is equivalent to 7 + 7 + 7

7 + 7 + 7 = 21

7 x 3 = 21

hope this helps
You might be interested in
The linear scale factor of two shapes is 3:4. If the area of the smallest shape is 72^2 what is the area of the big shape?​
Lorico [155]

Answer:

\boxed{6912 units^2}

Step-by-step explanation:

<em>Hey there!</em>

Well using the given ratio,

3:4

And the area of the small shape we need to do,

72*72 = 5184

Now we can make the following fractions,

\frac{3}{4} = \frac{5184}{x}

Now we can solve,

3*x = 3x

4 * 5184 = 20736

3x = 20736

20736 / 3

x = 6912

So the area of the bigger shape is 6912 units^2

<em>Hope this helps :)</em>

3 0
3 years ago
HELP i dont understand this.
Talja [164]

Answer:

Step-by-step explanation:

a)    is  SAS   (side , angle, side)

b)  is  SSA ( side , side angle)   and also :P  recognize you can't say   (Angle Side, Side )  or the teacher will send you to the office for cussing :P

3 0
2 years ago
PLS HELPPPP <br><br> 14. IF m1 = (x + 13)°<br> mz2 = 39° AND<br> mz3 = (5x + 4)º.<br> SOLVE FOR X.
forsale [732]

Answer: x=12

Step-by-step explanation:

m\angle1=(x+13)^0 \ \ \ \ \    m\angle2=39^0\ \ \ \ m\angle3=(5x+4)^0\\

The sum of the angles of the triangle is 180°:

(x+13)+39+(180-(5x+4))=180\\\\x+13+39+180-5x-4=180\\\\-4x+48=0\\\\-4x+48+4x=0+4x\\\\48=4x

Divide both parts of the equation by 4:

12=x\\\\Thus,\ x=12

8 0
1 year ago
Hey!
noname [10]

Answer:

A. Cylinder + cone

<u>Volume is the sum of volumes:</u>

  • V = Vcon + Vcyl = 1/3πr²h₁ + πr²h₂
  • V = 1/3π*9²*12 + π*9²*120 = 31554.2 cm³

<u>Surface area of cone:</u>

  • A = A=πr(r+√(h₁²+r²)) = π*9(9 + √(9²+12²)) = 678.6 cm²

<u>Surface area of cylinder minus bases:</u>

  • A = 2πrh₂ = 2π*9*120 = 6785.8 cm²

<u>Total surface area:</u>

  • 678.6 + 6785.8 = 7464.4 cm²

-------------------------------------------------

B. Cube+ pyramid

<u>Volume:</u>

  • V = a³ + (1/3)a²h = a³ + (1/3)a²√(l²-(a/2)²)
  • V = 8³ + (1/3)8²√(10²-4²) = 707.5 cm³

<u>Surface area of pyramid:</u>

  • A = a² + 2al = 8² + 2*8*10 = 224 cm²

<u>Surface area of cube minus bases:</u>

  • A = 4a² = 4(8²) = 256 cm²

<u>Total surface area:</u>

  • A = 224 + 256 = 480 cm²
5 0
3 years ago
Permudahkan setiap yang berikut
neonofarm [45]

Answer:

Step-by-step explanation:

\frac{4^{2}*4^{5} }{(4^{6})^{2}}=\frac{4^{2}*4^{5} }{4^{12}}\\\\=4^{2+5-12}=4^{-5}\\\\ =\frac{1}{4^{5}}

5 0
3 years ago
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