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oee [108]
2 years ago
8

Solve by substitution 3x+4y=10y=-2x+10​

Mathematics
1 answer:
mixer [17]2 years ago
6 0

Answer:

Plug in and solve

Step-by-step explanation:

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Find the slope of each line.<br> 1)
pentagon [3]

Answer:

7/1 or 7

Step-by-step explanation:

because you rise (vertically) seven and run (horizontally) 1, so 7/1 but simplified it's just 7 so either is valid.

6 0
2 years ago
A life guard in a tower 20 ft above sea level spots a struggling surfer at an angle of depression of 15 . How far is the surfer
GalinKa [24]

Answer: 19.31\ ft

Step-by-step explanation:

Given

The tower is at a height of h=20\ ft

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Suppose the surfer is x ft away from the base of the tower

\therefore \text{From the figure, we can write}\\\\\Rightarrow \cos 15^{\circ}=\dfrac{x}{h}\\\\\Rightarrow x=h\cos 15^{\circ}\\\Rightarrow x=20\cos 15^{\circ}\\\Rightarrow x=19.31\ ft

Therefore, the surfer is at a distance of 19.31 ft from the base of the tower.

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2 years ago
Select all that apply. Which steps are involved in multiplying fractions?
krek1111 [17]
I believe here are the necessary steps

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3 0
3 years ago
Read 2 more answers
How much paper will it take to make each tree including the bottom??
Nataly [62]

The bottom is a square with a side length of 2 ft.

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The area of one side ( triangle) = 1/2 x base x height = 1/2 x 2 x 4 = 4 square ft.

There are 4 triangles: 4 x 4 sq. ft. = 16 sq.ft. ( four sides)

Total area = four sides + bottom =  16 + 4 = 20 feet^2

7 0
3 years ago
What is the quotient of -5.2÷3.9
irina [24]
1.333333333... quotient
6 0
2 years ago
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