2 years ago

I need help with question one & two

1 answer:

6 0

The atomic number above the element is the number of protons inside of it.
That’s number 1 so answer is 169.
Number 2 is H because in the description above it states it is highly reactive

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What is the explicit formula for this sequence? 2,10,50,250,1250

Valentin [98]

Answer:

$a_n = 2(5)^{n-1}$

Step-by-step explanation:

Explicit Geometric Formula: $a_n = a_1r^{n-1}$

a₁ is 1st term

r is common ratio

n is term number

Step 1: Find common ratio r

r = 10/2 = 5

Step 2: Plug variables into formula

$a_n = 2(5)^{n-1}$

4 0

3 years ago

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Using the distributive property to find the value or each variable what is 5(9+13)=5m+5(13)

elena-s [515]

45 + 65 = 5m + 65
45 = 5m
m = 9

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2 years ago

Evaluate the expression ab for a = 10 and b = 4.

xz_007 [3.2K]

A x B

= 10 x 4

= 40

Therefore answer is 40

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2 years ago

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The complement of an angle measures 20 more than the angle. Find the number of degrees in the angle

padilas [110]

Let the measure of its complement be x°.
then, measure of angle = (x + 20)°. and measure of angle = (35 + 20)° = 55°

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2 years ago

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What value of a satisfies the following equation? -2(a + 3) = -4a + 32

Yanka [14]

Answer:

a = 19

Step-by-step explanation:

-2(a + 3) = -4a + 32

-2a - 6 = -4a +32

+2a +2a

-6 = -2a + 32

-32 -32

-38 = -2a

divide by -2

a = 19

5 0

2 years ago

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