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3 years ago

Assume you have collected data pairs (x, y) on a certain variety of tree xis

Mathematics

1 answer:

borishaifa [10]3 years ago

8 0

Answer: help

Step-by-step explanation:

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HELP WILL GIVE BRAINLIEST

AnnyKZ [126]

<h2>Good evening ,</h2>

<em><u>Answer</u></em>:

q=-10

<em><u>Step-by-step explanation:</u></em>

D:y=-3x+q

let’s find q

A(-4,2)∈D ⇔ 2=-3(-4)+q ⇔ q=-10

then D:y=-3x-10

look at the photo for more details.

______________

5 0

3 years ago

(-7x^2+3) + (4x^2+2x-1);<br> Find the sum or difference.

ivann1987 [24]

(-7x² + 3) + (4x² + 2x - 1)

-7x² + 3 + 4x² + 2x - 1

(-7x² + 4x²) + (3 - 1) + 2x collect like terms

-3x² + 2x + 2

hope this helps, God bless!

4 0

3 years ago

The roof leading to the top of a hill has an angle of elevation of 23 degrees. The hill is 120 feet high what is the leanth of t

Tresset [83]

Answer: $307.11\ ft$

Step-by-step explanation:

Given

The height of hill is 120 ft and the angle of elevation is $23^{\circ}$

Suppose the length of the road is $x$

From the figure, we can write

$\Rightarrow \sin 23^{\circ}=\dfrac{120}{x}\\\\\Rightarrow x=\dfrac{120}{\sin 23^{\circ}}\\\\\Rightarrow x=307.11\ ft$

Thus, the length of the road is $307.11\ ft$

7 0

3 years ago

70 toy cars 40% of the cars are blue

vaieri [72.5K]

Answer:

Step-by-step explanation:

hope this helped!

4 0

3 years ago

The product of 9 and the quantity 5 more than a number t is less than 5

Lelechka [254]

$9(t+5) \ \textless \ 5\ \ \ |use\ distributive\ property:a(b+c)=ab+ac\\\\(9)(t)+(9)(5) \ \textless \ 5\\\\9t+45 \ \textless \ 5\ \ \ |subtract\ 45\ from\ bot\ sides\\\\9t \ \textless \ -40\ \ \ \ |divide\ both\ sides\ by\ 9\\\\\huge\boxed{t \ \textless \ -\dfrac{40}{9}\to t \ \textless \ -4\dfrac{4}{9}}$

3 0

3 years ago