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2 years ago

9

I miss the equation, point D.

1 answer:

Maru [420]2 years ago

7 0

The answer is : Sn = S(n-1) + n

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Whitepunk [10]

Congruent means they are the same size

To prove the two triangles are congruent you would need to know the length of at least two of the sides. If two sides were not known you would need to know the length of one side and at least one of the unknown angles.

3 0

3 years ago

I need lots of help with 15 18 19 20 pls pls pls

Katena32 [7]

Answer:

15) x = 112

18) x = 120

19) x = 31

20) x = 65

Step-by-step explanation:

I hope that is useful for you :)

5 0

2 years ago

Which equation justifies why nine to the one third power equals the cube root of nine?

AVprozaik [17]

Answer:

nine to the one third power all raised to the third power equals nine raised to the one third times three power equals nine

Step-by-step explanation:

we know that

The <u><em>Power of a Power Property</em></u> , states that :To find a power of a power, multiply the exponents

so

$(a^{b})^{c}=a^{b*c}$

In this problem we have

$9^{\frac{1}{3}} =\sqrt[3]{9}$

Remember that

$\sqrt[3]{9}=9^{\frac{1}{3}}$

Raise to the third power

$[9^{\frac{1}{3}}]^3$

Applying the power of power property

$9^{\frac{3}{3}}$

$9^{1}$

$9$

therefore

nine to the one third power all raised to the third power equals nine raised to the one third times three power equals nine

8 0

2 years ago

Read 2 more answers

Find the value of x<br> 50 points for all 5 questions.

erik [133]

Step-by-step explanation:

we have

5x+4=2x+9

5x-2x=9+4

3x=13

x=13/3

7 0

2 years ago

A number x divided by 7

Assoli18 [71]

Answer:

x/7

Credit to kayci540

8 0

2 years ago