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3 years ago

12

Help asap!!!!!!!

1 answer:

azamat3 years ago

7 0

Answer:

C and D

Step-by-step explanation:

So from the equation <em>y = 1.26x + 9.49</em> we can gather that <em>9.49</em> is an initial value because it has to be added to the number with a variable <em>( 1.26x)</em>

Because <em>1.26</em> has a variable of <em>x </em>and x represents a week, we know that the number<em> 1.26 </em>will increases in value depending on how many weeks have passed.

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steposvetlana [31]

Format: y = mx + b
m = slope, b = y intercept
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4 0

2 years ago

Can anyone answer these 4? if so ill give 40 points. please show work!! and no long division please. , thanks!

dolphi86 [110]

54x89=4806

123x85=10,455

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6 0

2 years ago

Using addition formula solve tan 15

salantis [7]

Answer:

2 - $\sqrt{3}$

Step-by-step explanation:

Using the addition formula for tangent

tan(A - B) = $\frac{tanA-tanB}{1+tanAtanB}$ and the exact values

tan45° = 1 , tan60° = $\sqrt{3}$ , then

tan15° = tan(60 - 45)°

tan(60 - 45)°

= $\frac{tan60-tan45}{1+tan60tan45}$

= $\frac{\sqrt{3}-1 }{1+\sqrt{3} }$

Rationalise the denominator by multiplying numerator/ denominator by the conjugate of the denominator.

The conjugate of 1 + $\sqrt{3}$ is 1 - $\sqrt{3}$

= $\frac{(\sqrt{3}-1)(1-\sqrt{3}) }{(1+\sqrt{3})(1-\sqrt{3}) }$ ← expand numerator/denominator using FOIL

= $\frac{\sqrt{3}-3-1+\sqrt{3} }{1-3}$

= $\frac{-4+2\sqrt{3} }{-2}$

= $\frac{-4}{-2}$ + $\frac{2\sqrt{3} }{-2}$

= 2 - $\sqrt{3}$

3 0

2 years ago

Eric returned from a trip with 300 which is 50% more money than he had at the beginning of his trip how much money did Eric have

solong [7]

he had 150.

Step-by-step explanation:

i cant explain

6 0

2 years ago

how much would it have rained each month if the total amount of rain (11 inches) was redistributed equally among the 12 months o

xeze [42]

Answer:

11/12 inch

Step-by-step explanation:

That'd be 11/12 inch per month for 12 months.

4 0

2 years ago