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Arte-miy333 [17]
3 years ago
8

(2x+0.5)2–(2x–0.5)2 for x=−3.5

Mathematics
1 answer:
kenny6666 [7]3 years ago
6 0
Just substitute wherever x is for example 2 times 3.5
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Answer and explain ILL MARK BRAINLIEST I DONT UNDERSTAND
Sati [7]

First let's reduce the feet to miles

there are 5280 feet in a mile therefore

26400 feet=5 miles

31680 feet=6 miles

Jet A(the first jet) descends 5 miles in 96 miles

Jet B(the second jet) descends 6 miles in 120 miles

We can compare these as fractions to see which is steeper. This can be viewed as slope and the origin (0,0) is the airport.

slope: 6/120=?=5/96

1/20=?=5/96

Now we know that 5/100 =1/20 so 5/96 must be bigger than 5/100 because you are dividing by a smaller number.

so 1/20<5/96

So Jet B is descending steeper than Jet A.

As for linear model, I don't exactly know what your teacher means but I think I actually used the linear model when I'm thinking of steepness as slope in the coordinate plane, I will include a picture.

In this extremely zoomed out graph, you can see the blue line is just slighly higher than the red line(slope as in explanation is way easier to tell) this could be seen as the linear model) :) Hope it helped!

6 0
3 years ago
What is the length of the missing leg? If necessary, round to the nearest tenth.
Marrrta [24]

<u>Answer:</u>

  • The length of the hypotenuse is 33 yards.

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

<em>We can solve for 'a' using Pythagoras theorem. Let's solve it.</em>

  • 65² = b² + 56²
  • => 4225 = b² + 3136
  • => b² = 1089
  • => b = 33

Hence, the length of the hypotenuse is 33 yards.

Hoped this helped.

BrainiacUser1357

7 0
2 years ago
You want to place a towel bar that is 24 1⁄4 centimeters long in the center of a door that is 70 1⁄3 centimeters wide. How far s
Leviafan [203]

Heres Is Your Answer Below

<em><u>70 1/3- 24 1/4=?</u></em>

<em><u /></em>

<em><u>70 4/12- 24 3/12= 46 1/12</u></em>

<em><u /></em>

<em><u>46 1/12 /2= 23 1/24</u></em>

<em><u /></em>

<u>23 1/24 Would be Your Answer</u>

<u></u>

<u>Have A Great Day!</u>

3 0
3 years ago
Find the area of the triangle below.
xenn [34]

Answer:

Well t find the area of a triangle, you need to multiple Base x height. That gives you 43.56. Now you divide by 2. So the end product will give you 21.78. Those same rules apply to every time you are finding the area of a triangle.

Step-by-step explanation:

7 0
2 years ago
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Plzzz Select the correct answer.
krek1111 [17]

Answer: D:

To get system B, the second equation in system A was replaced by the sum of that equation and the first equation multiplied by 5. The solution to system B will be the same as the solution to system A.

Step-by-step explanation:

7 0
3 years ago
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