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Ronch [10]
3 years ago
8

Solve for x. have to turn in by tomorrow !

Mathematics
1 answer:
Elanso [62]3 years ago
7 0
To solve this problem you must apply a theorem called: Intersecting secant theorem. The proccedure is shown below:

 1) For the figure shown on the left:

 (5)(x+5)=(6)(4+6)
 5x+25=60
 5x=60-25
 x=35/5
 x=7

 
2) For the figure shown on the right:

 (3)(3+5)=(4)(x+4)
 24=4x+16
 24-16=4x
 8=4x
 8/4=x
 x=2
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How to simplify 7- (-3)
astra-53 [7]

Answer: 7- (-3) = 10

5 0
3 years ago
8 of the students went to see live animals what fraction part of the group is that
lozanna [386]
In order to answer that question we would have to know how many people are in the group
For example: if there are ten people in the group then the fraction would be 8/10
If there are 20 people in the group then the fraction would be 8/20
I hope this helped
7 0
3 years ago
Read 2 more answers
Maribel wants to skate 1 1/2 miles on Monday. If she skates 7/10 miles on Monday morning and 4/5 of that distance on Monday afte
balandron [24]
4/5 x 7/10=28/50
7/10+28/50=35/50+28/50=63/50 which is not enough to make 1-1/2 miles
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8 0
3 years ago
Determine whether line AB and line CD are parallel, perpendicular, or neither. A( 4, 2), B(-3, 1), C(6, 0), D(-10, 8)
Lapatulllka [165]

Answer:

<h2>neither</h2>

Step-by-step explanation:

If AB an CD are parallel, then their slopes are the same.

If AB and CD are perpendicular, then the product of their slopes is equal -1.

The formula of a slope:

m=\dfrac{y_2-y_1}{x_2-x_1}

Calculate the both slope:

A(4,\ 2),\ B(-3,\ 1)\\\\m_{AB}=\dfrac{1-2}{-3-4}=\dfrac{-1}{-7}=\dfrac{1}{7}\\\\C(6,\ 0),\ D(-10,\ 8)\\\\m_{CD}=\dfrac{8-0}{-10-6}=\dfrac{8}{-16}=-\dfrac{1}{2}\\\\=============================

m_{AB}\neq m_{CD}

The line AB and line CD are not parallel

m_{AB}\cdot m_{CD}=\left(\dfrac{1}{7}\right)\left(-\dfrac{1}{2}\right)=-\dfrac{1}{14}\neq-1

The line AB and line CD are not perpendicular.

6 0
3 years ago
Norma Ann planned a rectangular courtyard, as shown in the scale drawing below. A rectangle with length of 15 inches and width o
never [62]

the change in the scale factor is  \frac{45}{40} .Correct option C) StartFraction 45 feet over 40 feet EndFraction

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

Here we have , Norma Ann planned a rectangular courtyard, as shown in the scale drawing below. A rectangle with length of 15 inches and width of 5 inches. She decides to change the width, the shorter side of the courtyard, from 45 ft to 40 ft. We need to find Which expression finds the change in the scale factor . Let's find out:

Initially the ratio of width to actual width is :

⇒ \frac{5}{45}

Now , After 45 ft is changed to 40 ft , New ratio becomes :

⇒ \frac{5}{40}

So , change in scale factor is from  \frac{5}{45} to  \frac{5}{40} i.e.

⇒ \frac{\frac{5}{40} }{\frac{5}{45} }

⇒ \frac{5}{40}(\frac{45}{5} )

⇒ \frac{45}{40}

Therefore , the change in the scale factor is  \frac{45}{40} .Correct option C) StartFraction 45 feet over 40 feet EndFraction

8 0
3 years ago
Read 2 more answers
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