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topjm [15]
3 years ago
7

Two corresponding sides of two similar pentagons are 14 cm and 21cm

Mathematics
1 answer:
ivolga24 [154]3 years ago
8 0
The ratio is 4/9<span>.

Area = n (s/2)^2 / tan(</span><span>π /n)</span>

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Find the product.
4vir4ik [10]
Answer :

6{y}^{4} {z}^{2} + 12 {y}^{3} {z}^{2}-3 {y}^{3} {z}+3 {y}^{2} {z}^{2}

Step-by-step explanation :

To find the product of

3 {y}^{2} z(2 {y}^{2} z + 4yz - y + z)

First we expand the bracket ,

it implies that, we use the expression outside the bracket to multiply individual expressions inside the bracket.

Hence

3 {y}^{2} z(2 {y}^{2} z + 4yz - y + z)

= 3 {y}^{2} z(2 {y}^{2} z) + 3 {y}^{2} z(4yz) - 3 {y}^{2} z(y )+3 {y}^{2} z( z)

we now apply the law of indices

{a}^{m} \times {a}^{n} = {a}^{m+n}

meaning, when you are multiplying two expressions with the same bases , repeat one of the bases and add the exponents.

Then, simplify to obtain

= 6{y}^{4} {z}^{2} + 12 {y}^{3} {z}^{2}-3{y}^{3} {z}+3 {y}^{2} {z}^{2}
3 0
3 years ago
O triplo de um número, menos 10 é igual ao próprio número mais 70. Qual é esse número?
marin [14]

Answer: 40

Step-by-step explanation:

3x-10=x+70

3x-x=70+10

2x=80

x=8<u>0</u>

    2

x=40

8 0
3 years ago
Read 2 more answers
How many stops does Mia make on her drive? Explain
Sati [7]

Can you provide a picture or what is going on in the picture and or text?

3 0
3 years ago
Standard form of a linear equation -2x+3=4y
zhuklara [117]

Answer:

y=-1/2x+3/4

Step-by-step explanation:

just divide the entire equation by 4, so that y is isolated.

The standard form equation of a line is y=mx+b

3 0
3 years ago
Using the table shown, choose an equation that expresses the relationship between the number of feet, x, and the number of inche
Kryger [21]

Answer:

dont know but i would choose (D)

Step-by-step explanation:


3 0
3 years ago
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