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Pani-rosa [81]
3 years ago
5

What is the slope of the line whose equation is 2y=5×+4?

Mathematics
2 answers:
Elina [12.6K]3 years ago
7 0
2y=5x+4\\
y=\dfrac{5}{2}+2\\\\
\boxed{m=\dfrac{5}{2}}
sergejj [24]3 years ago
3 0
2y=5x+4

Transforms into:

y=5/2x+2

Therefore the slope is: 5/2
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Micheal is taking a survey of students at his high school to find out how many hours they work per week. He surveys all of the s
yulyashka [42]
No because that would just be measuring freshman a better sampling method would be surveying the same number of students for each grade
6 0
3 years ago
From a window 20 feet above the ground, the angle of elevation to the top of a building across
Nikitich [7]

Answer: The answer is 381.85 feet.

Step-by-step explanation:  Given that a window is 20 feet above the ground. From there, the angle of elevation to the top of a building across  the street is 78°, and the angle of depression to the base of the same building is 15°. We are to calculate the height of the building across the street.

This situation is framed very nicely in the attached figure, where

BG = 20 feet, ∠AWB = 78°, ∠WAB = WBG = 15° and AH = height of the bulding across the street = ?

From the right-angled triangle WGB, we have

\dfrac{WG}{WB}=\tan 15^\circ\\\\\\\Rightarrow \dfrac{20}{b}=\tan 15^\circ\\\\\\\Rightarrow b=\dfrac{20}{\tan 15^\circ},

and from the right-angled triangle WAB, we have'

\dfrac{AB}{WB}=\tan 78^\circ\\\\\\\Rightarrow \dfrac{h}{b}=\tan 15^\circ\\\\\\\Rightarrow h=\tan 78^\circ\times\dfrac{20}{\tan 15^\circ}\\\\\\\Rightarrow h=361.85.

Therefore, AH = AB + BH = h + GB = 361.85+20 = 381.85 feet.

Thus, the height of the building across the street is 381.85 feet.

8 0
3 years ago
Determine x please.
Margaret [11]
Ne demek istoyusun anlamadım
8 0
3 years ago
Read 2 more answers
Help it’s for my final most of my grade
Helga [31]

whats the question lol

5 0
2 years ago
paul , Nadia and Jim have some stickers. Nadia has 3 times as many stickers as jim. Paul has 25 stickers more that Nadia. Paul a
alexandr402 [8]
Nadia = 3x than Jim
Paul = 25+ than Nadia
Jim = ?
Nadia and Paul = 85

85-25 = 60
(Subtract Nadia's and Paul's stickers all together with the stickers that Paul have more so both of the stickers are balance)

Nadia = 60/2 =30
Paul = 30+25 =55

Jim= 30/3=10

#Jim have 10 stickers


4 0
3 years ago
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