3 years ago

I NEED HELP WITH MATH

Mathematics

1 answer:

suter [353]3 years ago

4 0

The answer is 9n because 2n+7n simplifies into 9n

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The diagonals of a Rhombus are 2Dm and 3M. What’s is the area of the Rhombus??

NemiM [27]

Answer:

336 $m^{2}$

Step-by-step explanation:

Area of Rhombus = (1/2)*xy

Where x and y are length of diagonals

Area = (1/2) * 21 * 32 = 21* 16 = 336

Area = 336 m²

7 0

3 years ago

Fill in the missing work and justification for step 2 when solving 3(x + 2) = 12.

liq [111]

Answer:

Step-by-step explanation:

3(x+2)=12

Distribute:

3x+6=12

Subtract:

3x+6-6=12-6

3x=6

Divide:

x=2

4 0

3 years ago

Please help! i think the answer is 12 but any verification would be greatly appreciated!

ANEK [815]

Answer:

13.9 or 14

Step-by-step explanation:

a^2 + b^2 = c^2

5^2 + 13^2 = c^2

25 + 169 = 197

square root 197 to get c

c = 13.9 (14 rounded up)

Helpful thing to note is that the hyptoenuse will always be longer than your "long side" of the triangle

6 0

3 years ago

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A store sells six cupcakes for $7. How much do 18 cupcakes cost?

ollegr [7]

Answer:

21 cupcakes

Step-by-step explanation:

6 = $7

18 = 6 x 3

18 = 7 x 3

18 = $21

7 0

3 years ago

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The two triangles below are similar. What is the similarity ratio of ΔABC to ΔDEF?

Evgesh-ka [11]

It would be a 2:1 ratio because sides AC and DF are 8:4 which simplifies to 2:1

Hope this helps!

5 0

3 years ago

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