3 years ago

FREE BRAINLIEST TO EVERYONE WHO ANSWERS RIGHT!!

Mathematics

1 answer:

My name is Ann [436]3 years ago

8 0

Answer:

Step-by-step explanation:

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The equation y=4x+4 estimates the number of U.S. households, in millions, expected to install devices that receive and manage br

Pepsi [2]

Answer:

X ≥9 years after 2009.

Step-by-step explanation:

Y=4x+4

Y-4=4x

X=(Y-4)/4

Y=number of U.S. households, in millions.

Y≥40

Y-4≥36

(Y-4)/4≥9

So, X≥9.

7 0

3 years ago

1)Find the angle of elevation of the sun from the ground when a tree that is

KIM [24]

Answer:

$\theta=41.18^{\circ}$

Step-by-step explanation:

Given that,

The height of the tree, h = 14 ft

The height of the shadow, b = 16 ft

We need to find the angle of elevation of the sun from the ground. Let the angle be θ. We can use trigonometry to find it. So,

$\tan\theta=\dfrac{P}{B}\\\\\tan\theta=\dfrac{14}{16}\\\\\theta=41.18^{\circ}$

So, the required angle of elevation of the sun is equal to $41.18^{\circ}$ .

7 0

3 years ago

How do you find the slope of the line that goes<br> through the points (-5, 6) and (7,-6)?

strojnjashka [21]

Answer:

Step-by-step explanation:

$slope=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}\\\\=\frac{-6-6}{7-[-5]}\\\\=\frac{-12}{7+5}\\\\=\frac{-12}{12}\\\\=-1$

5 0

3 years ago

How many pounds are there in a kg

Dafna11 [192]

1 lb = 0.45359237 kg

8 0

3 years ago

9. Determine whether (-3,2) is a solution of<br> Y = 2x +8<br> Y= -X+1

miss Akunina [59]

2 = 2(-3) + 8
2 = -6 + 8
2 = 2

true.

2 = 3 + 1
2 = 4

false.

this is not a solution because both equations have to be true.

4 0

2 years ago