Write an algebraic expression the product of 6 and Y increased by 15

Mathematics

1 answer:

Ludmilka [50]3 years ago

6 0

6y+15. Hope this helped

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A detective knows what time of day it is based on the angle at which the sun is hitting a man. Suppose a detective is looking at

soldi70 [24.7K]

Answer:

The angle $\theta$ at which the sun is hitting the ground is:

$\theta\approx 59.74^o$

Step-by-step explanation:

You can use right angle trigonometry to solve this, since the man (6 ft tall) and the shadow on the ground (3.5 ft long) form a right angle triangle as shown on the attached image.

The use the tangent function to find the angle that the sun's rays make with the ground:

$tan(\theta)=\frac{opposite}{adjacent} \\tan(\theta)=\frac{6}{3.5} \\\theta=arctan(\frac{6}{3.5})\\\theta\approx 59.74^o$

6 0

3 years ago

What is the solution to the system of equations y= -3x+6 y=9

Alex_Xolod [135]

Answer:

Step-by-step explanation:

$\left\{\begin{array}{ccc}y=-3x+6\\y=9\end{array}\right\ \text{put the value of}\ y\ \text{to the first equation}\\\\9=-3x+6\qquad\text{subtract 6 from both sides}\\3=-3x\qquad\text{divide both sides by (-3)}\\-1=x\to x=-1$