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Nitella [24]
3 years ago
8

These two polygons are similar. 15 y = [?] PLS HELP ME

Mathematics
1 answer:
Alex17521 [72]3 years ago
4 0
Answer:
5

method:
6/2 = 3
This means that the linear scale factor is 3
15/3= 5
therefore Y= 5
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Which following figures have a area of 64 square feet? Select three that apply
Korvikt [17]

Answer:

<em><u>a,e and b</u></em>

Step-by-step explanation:

8 0
3 years ago
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Paul and Charlene are 420 miles apart. They start toward each other with Paul driving 16 mph faster than Charlene. They meet in
Thepotemich [5.8K]

Answer:

34 mph.    

Step-by-step explanation:

Let x be speed of Charlene, then speed of Paul will be x+16 as we are given that Paul is driving 16 mph faster than Charlene.

Let y be distance covered by Charlene, then distance covered by Paul will be 420-y.  

Now we will use formula \text{Speed}=\frac{\text{Distance}}{\text{Time}}. Upon using our given information we will get two equation and two unknowns as:  

x+16=\frac{420-y}{5}...(1)

x=\frac{y}{5}...(2)

Upon substituting x=\frac{y}{5} in 1st equation we will get,

\frac{y}{5}+16=\frac{420-y}{5}

Upon multiplying both sides of our equation by 5 we will get,

5(\frac{y}{5}+16)=420-y

5\times\frac{y}{5}+5\times 16=420-y    

y+80=420-y

y+80+y=420-y+y

2y+80=420

2y=420-80

2y=340

y=\frac{340}{2}  

y=170      

Upon substituting y=170 in 2nd equation we will get,

x=\frac{170}{5}

x=34

Therefore, Charlene's speed is 34 miles per hour.


6 0
3 years ago
I WILL GIVE YOU 100 POINTS IF YOU HELP ME ON THIS PLEASE ASAP!
ValentinkaMS [17]

Answer:

4

Step-by-step explanation:

As I stated, the formula of the area of a triangle is LW/2.

Meaing all you have to do is 4x2/2.

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3 years ago
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ExtremeBDS [4]

Answer:

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Step-by-step explanation:

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3 years ago
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Please can someone answer this.
ivanzaharov [21]

Answer:

  •  x = -4, x = 0, x = 1

Step-by-step explanation:

x is a factor of all terms, so x=0 is a zero. (Eliminates choices 1 and 5.)

The sum of coefficients is 0, so x=1 is a zero. (Eliminates choices 3 and 4.)

Reversing the sign of the odd-degree terms gives signs of -++, so there is one sign change, hence one negative real root (by Descartes' rule of signs). This confirms choice 2 as the answer.

___

Of course, your graphing calculator can answer this almost as quickly.

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3 years ago
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