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larisa86 [58]
2 years ago
12

Solve for x and then part b) find JL. Have no clue how to go about this

Mathematics
1 answer:
Igoryamba2 years ago
8 0

9514 1404 393

Answer:

  • x = 4
  • JL = 16

Step-by-step explanation:

a) You go about this by using the given equation.

  Left + Right = Total

  JK + KL = JL

  (2x -3) + 11 = 4x

  8 = 2x . . . . . simplify, subtract 2x

  4 = x . . . . . . divide by 2

__

b) JL = 4x = 4·4

  JL = 16

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Given the following formula, solve for l.
scoray [572]
P=2(l + b)
P=2l + 2b
P-2b=2l
P-2b/2=l
C is your answer
8 0
3 years ago
Read 2 more answers
Choose all of the transformations that are rigid motions.
kkurt [141]

Answer:

The answer is below

Step-by-step explanation:

Transformation is the movement of a point from its initial location to a new location. Types of transformation are rotation, reflection, dilation and rotation.

Rigid transformations are transformation that produces an image with the same size, shape and angle as the original object. Rigid transformations are translation, rotation and reflection.

Dilation is not a rigid transformation.

All the transformations attached are rigid transformations.

7 0
3 years ago
A Runway is 3100 ft long and 65 ft wide what is the area of the runway in feet squared​
ivolga24 [154]

Answer:

201, 500ft²

Step-by-step explanation:

The formula for calculating area in this case is;

<em>A = w × l</em>

This means we're going to take the width of the runway (65ft) and multiply it by the length of the runway (3100ft).

(To make it easier on paper, you can swap the two numbers around, so the higher number is on top, and the smaller number is on the bottom - 3100 × 65. It won't change the answer, but it will make it quicker and easier to get to the result, and lessens the chances making a mistake.)

So the equation you need to do is;

<em>3,100 × 65 = 201, 500.</em>

Add on the units, and there's your answer;

201, 600ft²

<h2>Hope this helped!</h2>
6 0
3 years ago
5. Using complete sentences, explain how to find the average rate of change for f(x) from x = 4 to x = 7. my equation is F(x) =
Alik [6]
The average rate of change of function describes the average rate at which y-value ( or f(x)) is changing with respect to changing x-value.
The average rate of change=\frac{ y_{1}- y_{2}  }{ x_{1} - x_{2} } In this exaple is x1=4 and x2=7 and we will find y1 and y2:
y1=3(4-3)²+4=3*1+4=7
y2=3(7-3)²+4=3*16+4=48+4=52
Finally:\frac{52-7}{7-4}= \frac{45}{3} =15
Answer: The average rate of change for f(x) from x=4 to x=7 is 15.
3 0
3 years ago
Solve for x. 5(x+1)≤5x+3 no solution all real numbers x≤1 x≤7
VladimirAG [237]

Answer:

No solution

Step-by-step explanation:

You are given the inequality

5(x+1)\le 5x+3

First, eliminate brackets in left side of the inequality:

5x+5\le 5x+3

Now separate variables and numbers:

5x-5x\le 3-5

So

0\le -2

The last inequality is false (0 is not less than -2), so the initial inequality has no solution.

3 0
3 years ago
Read 2 more answers
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