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likoan [24]
3 years ago
12

Someone pls help pls I need help

Mathematics
2 answers:
EleoNora [17]3 years ago
7 0

Answer:

<h3><em>4 × 3 + 3²</em></h3><h3><em>4 × 3 + 9</em></h3><h3><em>12 +</em><em>9</em></h3>

<em>21</em>

<em>Therefore</em>

<em>A</em><em>n</em><em>s</em><em>w</em><em>e</em><em>r</em><em> </em><em>=</em><em> </em><em>2</em><em>1</em>

<em>h</em><em>o</em><em>p</em><em>e</em><em> </em><em>h</em><em>e</em><em>l</em><em>p</em><em>s</em><em>~</em>

AlladinOne [14]3 years ago
7 0

Answer:

21

Step-by-step explanation:

4h + h^2

4(3) + 3^2

12 + 9

21

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the atomic number and atomic weight of chlorine element is 17 and 35 respectively. Calculate the number of proton, neutron and e
grin007 [14]

A chlorine nucleus will contain: Number of protons Z = 17. Number of protons + neutrons A = 35. Number of neutrons N = 35 - 17 = 18.

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3 years ago
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A population of 120,000 grows 4% per year after 16 years. How much will the population be after 16 years?
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The population after 16 years will be 224758
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4 years ago
Choose the correct simplification of f^9 h^23/f^3 h^17
Tanzania [10]

Answer:

f6h40

Step-by-step explanation:

Step  1  :

           h23

Simplify   ———

           f3  

Equation at the end of step  1  :

         h23

 ((f9) • ———) • h17

         f3  

Step  2  :

Multiplying exponential expressions :

2.1    h23 multiplied by h17 = h(23 + 17) = h40

Final result :

 f6h40

4 0
3 years ago
Find the equation of the line passing through point A and perpendicular to AB ?
Kobotan [32]

Answer:

see explanation

Step-by-step explanation:

(a ) calculate the slope m using the gradient formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = A(0, 6) and (x₂, y₂ ) = B(3, 0 )

m_{AB} = \frac{0-6}{3-0} = \frac{-6}{3} = - 2

(b)

given a line with slope m then the slope of a line perpendicular to it is

m_{perpendicular} = - \frac{1}{m} = - \frac{1}{-2} = \frac{1}{2}

(c)

the equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y-intercept )

(0, 6 ) is the y-intercept ⇒ c = 6

y = \frac{1}{2} x + 6 ← equation of perpendicular line



3 0
4 years ago
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Zigmanuir [339]

Answer: 7/20

Step-by-step explanation:

I looked it up

3 0
3 years ago
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