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3 years ago

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A molecule of sodium carbonate contains 2 atoms of sodium to every 3 atoms of oxygen. Could a compound containing 12 atoms of so

dium and 15 atoms of oxygen be sodium carbonate ? Explain

1 answer:

lys-0071 [83]3 years ago

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Ask this question in the science category xoxo

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Given f(x) and g(x) = k⋅f(x), use the graph to determine the value of k.

ollegr [7]

Answer:

k=5

Step-by-step explanation:

step 1

Find the equation of the line f(x)

we have the points

(-4,0) and (-2,2)

<em>Find the slope m</em>

$m=(2-0)/(-2+4)\\m=1$

Find the equation of the line in point slope form

$y-y1=m(x-x1)$

we have

$m=1\\(-4,0)$

substitute

$y-0=(1)(x+4)$

$y=x+4)$

Remember that

f(x)=y

so

$f(x)=x+4$

step 2

Find the equation of the line g(x)

we have the points

(-4,0) and (-2,-10)

<em>Find the slope m</em>

$m=(10-0)/(-2+4)\\m=5$

Find the equation of the line in point slope form

$y-y1=m(x-x1)$

we have

$m=5\\(-4,0)$

substitute

$y-0=(5)(x+4)$

$y=5(x+4)$

Remember that

g(x)=y

so

$g(x)=5(x+4)$

Remember that

$g(x)=kf(x)$ ------> $g(x)=5(x+4)$

therefore

k=5

6 0

4 years ago

Read 2 more answers

A line passes through (-6, 2) and (6, 6). What is the x-intercept and equation?

ivanzaharov [21]

Answer:

Equation: $y=\frac{1}{3} x+4$

X-Intercept:<em> -12 </em>(set y equal to 0 in your equation)

4 0

3 years ago

The local supermarket is having a holiday special on lollipops. The rainbow lollipops,x, cost $2 and the blue lollipops,y, cost

notsponge [240]

Answer:

the answer is 92 i think

Step-by-step explanation:

4 0

3 years ago

The population of a town was 25,000 people. Then 3,200 people moved away. What was the percent of decrease?

AVprozaik [17]

Answer:

12.8 %

Step-by-step explanation:

(3200)/(25000) *100

7 0

3 years ago

Multiply (6 - 5)².<br> OA) 11+ 60i<br> B) 36 +25i<br> OC) 11-60i<br> OD) 36-25i

MA_775_DIABLO [31]

Answer:

$\textsf{C)} \quad 11-60i$

Step-by-step explanation:

$\textsf{Multiply }\: (6-5i)^2$

$\implies (6-5i)(6-5i)$

$\implies 6(6-5i)-5i(6-5i)$

$\implies 36-30i-30i+25i^2$

$\implies 36-60i+25i^2$

$\textsf{Remember that }i^2=-1:$

$\implies 36-60i+25(-1)$

$\implies 36-60i-25$

$\implies 36-25-60i$

$\implies 11-60i$

5 0

2 years ago