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Fed [463]
3 years ago
5

What is the result of adding these two equations?

Mathematics
1 answer:
Marina86 [1]3 years ago
7 0

Answer:

-2x-7y=-4

Step-by-step explanation:

We want to add the two expressions

\begin{aligned} 5x-9y &= 1 \\ -7x+2y &= -5 \end{aligned}

First we add the Left Hand Sides and do the same to the Right Hand Sides. This gives us:

(5x-9y)+(-7x+2y)= 1 +( -5)

Open the brackets

5x-9y-7x+2y=1-5

Regroup like terms

5x-7x-9y+2y=-4

-2x-7y=-4

The result of adding the two given expressions is -2x-7y=-4.

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Answer:

The weight of a tomato depends on the variety of tomato. There are cherry, plum, grape, roma, and beef tomatoes of various sizes. The following tables shows different types of tomatoes, along with the average weight (in grams and ounces), the number of tomatoes per kilogram, and the number of tomatoes per pound.

Step-by-step explanation:

6 0
3 years ago
A ladder leans against a 22-feet-tall apple tree. The base of the ladder forms a 42° angle with the ground. Approximately how ta
igomit [66]

(D) 33 feet

<u>Explanation:</u>

Given:

Height of the tree, h = 22 feet

angle, θ = 42°

Length of the ladder, l = ?

We know:

sin θ = Perpendicular / hypotenuse

So,

Sin θ = height of the tree / length of the ladder

sin 42^0 = \frac{22}{l} \\\\0.67 = \frac{22}{l} \\\\l = 32.84 feet

l = 32.84 feet ≈ 33 feet

Therefore, the length of the ladder be to reach the top of the apple tree is 33 feet.

6 0
3 years ago
Please help? , no decimals please,please explain to see picture. ​
dalvyx [7]

Answer:

8x\sqrt{3xy

Step-by-step explanation:

7 0
2 years ago
A model rocket is launched straight into the air from platform 3 feet above the ground with an intial velocity of 192 feet per s
Pachacha [2.7K]

Answer:

Step-by-step explanation:

the function -16t^2 + 64t + 192 give the height S, in ft, of a model water rocket launched with a velocity of 64 ft/second from a hill that is 192 ft high. a) determine how long it will take the rocket to reach the ground, b) find the interval on which the height of the rocket is greater than 240 ft.

6 0
3 years ago
What is the total amount of sap the trees produced that day?​
DedPeter [7]

Answer:

This is the answer of your question.

<h3> The total amount of sap the trees produced that day is 5 gallons </h3>

6 0
3 years ago
Read 2 more answers
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